Windows Analysis Report
pisun.exe

Overview

General Information

Sample name: pisun.exe
Analysis ID: 1646174
MD5: 45140e967970cd63521eaa76dc4db7d7
SHA1: aae8aa4c5fb8e1d5a830f1f095d7550a89b7634a
SHA256: 3990ab6d73f0a92606cb4c86d39e077f014da65413a264be94d03ca8478e64b8
Tags: exeNjratuser-BastianHein
Infos:

Detection

Njrat
Score: 100
Range: 0 - 100
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Njrat
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Contains functionality to log keystrokes (.Net Source)
Disables zone checking for all users
Joe Sandbox ML detected suspicious sample
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
AV process strings found (often used to terminate AV products)
Abnormal high CPU Usage
Allocates memory with a write watch (potentially for evading sandboxes)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Yara signature match

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Name Description Attribution Blogpost URLs Link
NjRAT RedPacket Security describes NJRat as "a remote access trojan (RAT) has capabilities to log keystrokes, access the victim's camera, steal credentials stored in browsers, open a reverse shell, upload/download files, view the victim's desktop, perform process, file, and registry manipulations, and capabilities to let the attacker update, uninstall, restart, close, disconnect the RAT and rename its campaign ID. Through the Command & Control (CnC) server software, the attacker has capabilities to create and configure the malware to spread through USB drives."It is supposedly popular with actors in the Middle East. Similar to other RATs, many leaked builders may be backdoored.
  • AQUATIC PANDA
  • Earth Lusca
  • Operation C-Major
  • The Gorgon Group
 https://malpedia.caad.fkie.fraunhofer.de/details/win.njrat

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: pisun.exe Avira: detected
Found malware configuration
Source: 1.0.pisun.exe.1d0000.0.unpack Malware Configuration Extractor: Njrat {"Host": "such-captain.gl.at.ply.gg", "Port": "7723", "Version": "<- NjRAT 0.7d Horror Edition ->", "Registry Name": "f9f7ecca9c9e7996304b914cc137e66d", "Campaign ID": "Victim", "Network Seprator": "Y262SUCZ4UJJ"}
Multi AV Scanner detection for submitted file
Source: pisun.exe ReversingLabs: Detection: 86%
Source: pisun.exe Virustotal: Detection: 80% Perma Link
Yara detected Njrat
Source: Yara match File source: pisun.exe, type: SAMPLE
Source: Yara match File source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: pisun.exe PID: 6640, type: MEMORYSTR
Joe Sandbox ML detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 100.0% probability
Uses 32bit PE files
Source: pisun.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: C:\Users\user\Desktop\pisun.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dll Jump to behavior
Source: pisun.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.5:49721 -> 147.185.221.27:7723
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 147.185.221.27 147.185.221.27
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: SALSGIVERUS SALSGIVERUS
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: such-captain.gl.at.ply.gg
Source: pisun.exe String found in binary or memory: https://pastebin.com/raw/???

Key, Mouse, Clipboard, Microphone and Screen Capturing
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Contains functionality to log keystrokes (.Net Source)
Source: pisun.exe, kl.cs .Net Code: VKCodeToUnicode

E-Banking Fraud
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Yara detected Njrat
Source: Yara match File source: pisun.exe, type: SAMPLE
Source: Yara match File source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: pisun.exe PID: 6640, type: MEMORYSTR

System Summary
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Malicious sample detected (through community Yara rule)
Source: pisun.exe, type: SAMPLE Matched rule: Windows_Trojan_Njrat_30f3c220 Author: unknown
Source: pisun.exe, type: SAMPLE Matched rule: Detects RevengeRAT malware Author: Florian Roth
Source: pisun.exe, type: SAMPLE Matched rule: Detects malware from disclosed CN malware set Author: Florian Roth
Source: pisun.exe, type: SAMPLE Matched rule: Detects unknown malware sample with pastebin RAW URL Author: Florian Roth
Source: pisun.exe, type: SAMPLE Matched rule: Detects njRAT based on some strings Author: Sekoia.io
Source: pisun.exe, type: SAMPLE Matched rule: Identify njRat Author: Brian Wallace @botnet_hunter
Source: pisun.exe, type: SAMPLE Matched rule: detect njRAT in memory Author: JPCERT/CC Incident Response Group
Source: pisun.exe, type: SAMPLE Matched rule: Detects NjRAT / Bladabindi Author: ditekSHen
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Njrat_30f3c220 Author: unknown
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Detects RevengeRAT malware Author: Florian Roth
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Detects malware from disclosed CN malware set Author: Florian Roth
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Detects unknown malware sample with pastebin RAW URL Author: Florian Roth
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Detects njRAT based on some strings Author: Sekoia.io
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Identify njRat Author: Brian Wallace @botnet_hunter
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: detect njRAT in memory Author: JPCERT/CC Incident Response Group
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Detects NjRAT / Bladabindi Author: ditekSHen
Source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Windows_Trojan_Njrat_30f3c220 Author: unknown
Source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Identify njRat Author: Brian Wallace @botnet_hunter
Source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: detect njRAT in memory Author: JPCERT/CC Incident Response Group
Abnormal high CPU Usage
Source: C:\Users\user\Desktop\pisun.exe Process Stats: CPU usage > 49%
Detected potential crypto function
Source: C:\Users\user\Desktop\pisun.exe Code function: 1_2_00CC0360 1_2_00CC0360
Sample file is different than original file name gathered from version info
Source: pisun.exe, 00000001.00000002.3737489797.000000000060E000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: OriginalFilenamemscorwks.dllT vs pisun.exe
Uses 32bit PE files
Source: pisun.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Yara signature match
Source: pisun.exe, type: SAMPLE Matched rule: Windows_Trojan_Njrat_30f3c220 reference_sample = 741a0f3954499c11f9eddc8df7c31e7c59ca41f1a7005646735b8b1d53438c1b, os = windows, severity = x86, creation_date = 2021-06-13, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Njrat, fingerprint = d15e131bca6beddcaecb20fffaff1784ad8a33a25e7ce90f7450d1a362908cc4, id = 30f3c220-b8dc-45a1-bcf0-027c2f76fa63, last_modified = 2021-10-04
Source: pisun.exe, type: SAMPLE Matched rule: RevengeRAT_Sep17 date = 2017-09-04, hash3 = fe00c4f9c8439eea50b44f817f760d8107f81e2dba7f383009fde508ff4b8967, hash2 = 7c271484c11795876972aabeb277c7b3035f896c9e860a852d69737df6e14213, hash1 = 2a86a4b2dcf1657bcb2922e70fc787aa9b66ec1c26dc2119f669bd2ce3f2e94a, author = Florian Roth, description = Detects RevengeRAT malware, reference = Internal Research, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: pisun.exe, type: SAMPLE Matched rule: CN_disclosed_20180208_c date = 2018-02-08, hash1 = 17475d25d40c877284e73890a9dd55fccedc6a5a071c351a8c342c8ef7f9cea7, author = Florian Roth, description = Detects malware from disclosed CN malware set, reference = https://twitter.com/cyberintproject/status/961714165550342146, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: pisun.exe, type: SAMPLE Matched rule: Unknown_Malware_Sample_Jul17_2 date = 2017-08-01, hash1 = 3530d480db082af1823a7eb236203aca24dc3685f08c301466909f0794508a52, author = Florian Roth, description = Detects unknown malware sample with pastebin RAW URL, reference = https://goo.gl/iqH8CK, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: pisun.exe, type: SAMPLE Matched rule: crimeware_njrat_strings author = Sekoia.io, description = Detects njRAT based on some strings, creation_date = 2022-08-22, classification = TLP:CLEAR, version = 1.0, id = 215807ae-fbcb-478d-8941-e0787b883669
Source: pisun.exe, type: SAMPLE Matched rule: njrat1 date = 2015-05-27, author = Brian Wallace @botnet_hunter, description = Identify njRat, author_email = bwall@ballastsecurity.net
Source: pisun.exe, type: SAMPLE Matched rule: Njrat hash1 = d5f63213ce11798879520b0e9b0d1b68d55f7727758ec8c120e370699a41379d, author = JPCERT/CC Incident Response Group, description = detect njRAT in memory, rule_usage = memory scan
Source: pisun.exe, type: SAMPLE Matched rule: MALWARE_Win_NjRAT author = ditekSHen, description = Detects NjRAT / Bladabindi
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Njrat_30f3c220 reference_sample = 741a0f3954499c11f9eddc8df7c31e7c59ca41f1a7005646735b8b1d53438c1b, os = windows, severity = x86, creation_date = 2021-06-13, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Njrat, fingerprint = d15e131bca6beddcaecb20fffaff1784ad8a33a25e7ce90f7450d1a362908cc4, id = 30f3c220-b8dc-45a1-bcf0-027c2f76fa63, last_modified = 2021-10-04
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: RevengeRAT_Sep17 date = 2017-09-04, hash3 = fe00c4f9c8439eea50b44f817f760d8107f81e2dba7f383009fde508ff4b8967, hash2 = 7c271484c11795876972aabeb277c7b3035f896c9e860a852d69737df6e14213, hash1 = 2a86a4b2dcf1657bcb2922e70fc787aa9b66ec1c26dc2119f669bd2ce3f2e94a, author = Florian Roth, description = Detects RevengeRAT malware, reference = Internal Research, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: CN_disclosed_20180208_c date = 2018-02-08, hash1 = 17475d25d40c877284e73890a9dd55fccedc6a5a071c351a8c342c8ef7f9cea7, author = Florian Roth, description = Detects malware from disclosed CN malware set, reference = https://twitter.com/cyberintproject/status/961714165550342146, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Unknown_Malware_Sample_Jul17_2 date = 2017-08-01, hash1 = 3530d480db082af1823a7eb236203aca24dc3685f08c301466909f0794508a52, author = Florian Roth, description = Detects unknown malware sample with pastebin RAW URL, reference = https://goo.gl/iqH8CK, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: crimeware_njrat_strings author = Sekoia.io, description = Detects njRAT based on some strings, creation_date = 2022-08-22, classification = TLP:CLEAR, version = 1.0, id = 215807ae-fbcb-478d-8941-e0787b883669
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: njrat1 date = 2015-05-27, author = Brian Wallace @botnet_hunter, description = Identify njRat, author_email = bwall@ballastsecurity.net
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: Njrat hash1 = d5f63213ce11798879520b0e9b0d1b68d55f7727758ec8c120e370699a41379d, author = JPCERT/CC Incident Response Group, description = detect njRAT in memory, rule_usage = memory scan
Source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_NjRAT author = ditekSHen, description = Detects NjRAT / Bladabindi
Source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Windows_Trojan_Njrat_30f3c220 reference_sample = 741a0f3954499c11f9eddc8df7c31e7c59ca41f1a7005646735b8b1d53438c1b, os = windows, severity = x86, creation_date = 2021-06-13, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Njrat, fingerprint = d15e131bca6beddcaecb20fffaff1784ad8a33a25e7ce90f7450d1a362908cc4, id = 30f3c220-b8dc-45a1-bcf0-027c2f76fa63, last_modified = 2021-10-04
Source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: njrat1 date = 2015-05-27, author = Brian Wallace @botnet_hunter, description = Identify njRat, author_email = bwall@ballastsecurity.net
Source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Njrat hash1 = d5f63213ce11798879520b0e9b0d1b68d55f7727758ec8c120e370699a41379d, author = JPCERT/CC Incident Response Group, description = detect njRAT in memory, rule_usage = memory scan
Source: classification engine Classification label: mal100.phis.troj.spyw.evad.winEXE@1/0@1/1
Source: C:\Users\user\Desktop\pisun.exe Code function: 1_2_049E0F32 AdjustTokenPrivileges, 1_2_049E0F32
Source: C:\Users\user\Desktop\pisun.exe Code function: 1_2_049E0EFB AdjustTokenPrivileges, 1_2_049E0EFB
Source: C:\Users\user\Desktop\pisun.exe Mutant created: NULL
Source: C:\Users\user\Desktop\pisun.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\.net clr networking
Source: C:\Users\user\Desktop\pisun.exe Mutant created: \Sessions\1\BaseNamedObjects\f9f7ecca9c9e7996304b914cc137e66d
Source: pisun.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: pisun.exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.80%
Source: C:\Users\user\Desktop\pisun.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: pisun.exe ReversingLabs: Detection: 86%
Source: pisun.exe Virustotal: Detection: 80%
Source: C:\Users\user\Desktop\pisun.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: dnsapi.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: rasadhlp.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Section loaded: fwpuclnt.dll Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe File opened: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorrc.dll Jump to behavior
Source: pisun.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: C:\Users\user\Desktop\pisun.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dll Jump to behavior
Source: pisun.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation
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.NET source code contains potential unpacker
Source: pisun.exe, OK.cs .Net Code: Plugin System.Reflection.Assembly.Load(byte[])
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
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Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: pisun.exe Binary or memory string: WIRESHARK.EXE9HTTPS://PASTEBIN.COM/RAW/???NULL
Source: pisun.exe, 00000001.00000002.3738364787.0000000002811000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: WIRESHARK.EXE
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\pisun.exe Memory allocated: B40000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Memory allocated: 2810000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Memory allocated: 4810000 memory commit | memory reserve | memory write watch Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Users\user\Desktop\pisun.exe Window / User API: threadDelayed 1367 Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Window / User API: threadDelayed 3733 Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Window / User API: threadDelayed 4415 Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Window / User API: foregroundWindowGot 1764 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\pisun.exe TID: 6644 Thread sleep count: 1367 > 30 Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe TID: 6644 Thread sleep time: -1367000s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe TID: 8264 Thread sleep count: 3733 > 30 Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe TID: 6644 Thread sleep count: 4415 > 30 Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe TID: 6644 Thread sleep time: -4415000s >= -30000s Jump to behavior
Source: pisun.exe Binary or memory string: VBoxService%\\.\PhysicalDrive0
Source: pisun.exe, 00000001.00000002.3737489797.000000000063F000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll
Enables debug privileges
Source: C:\Users\user\Desktop\pisun.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\pisun.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
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.NET source code references suspicious native API functions
Source: pisun.exe, kl.cs Reference to suspicious API methods: MapVirtualKey(a, 0u)
Source: pisun.exe, kl.cs Reference to suspicious API methods: GetAsyncKeyState(num2)
Source: pisun.exe, OK.cs Reference to suspicious API methods: capGetDriverDescriptionA(wDriver, ref lpszName, 100, ref lpszVer, 100)
Source: pisun.exe Binary or memory string: Program Manager
Source: pisun.exe Binary or memory string: Progman
Source: pisun.exe Binary or memory string: Shell_TrayWnd+set CDAudio door open/set CDAudio door closed
Source: pisun.exe, 00000001.00000002.3738364787.00000000028A9000.00000004.00000800.00020000.00000000.sdmp, pisun.exe, 00000001.00000002.3738364787.00000000028D4000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Program Manager@9
Source: C:\Users\user\Desktop\pisun.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Lowering of HIPS / PFW / Operating System Security Settings
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Disables zone checking for all users
Source: C:\Users\user\Desktop\pisun.exe Registry value created: HKEY_CURRENT_USER\Environment SEE_MASK_NOZONECHECKS Jump to behavior
AV process strings found (often used to terminate AV products)
Source: pisun.exe, 00000001.00000002.3738364787.0000000002811000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Wireshark.exe

Stealing of Sensitive Information
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Yara detected Njrat
Source: Yara match File source: pisun.exe, type: SAMPLE
Source: Yara match File source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: pisun.exe PID: 6640, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Njrat
Source: Yara match File source: pisun.exe, type: SAMPLE
Source: Yara match File source: 1.0.pisun.exe.1d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000000.1269492282.00000000001D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: pisun.exe PID: 6640, type: MEMORYSTR
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Behavior
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1646174 Sample: pisun.exe Startdate: 23/03/2025 Architecture: WINDOWS Score: 100 10 such-captain.gl.at.ply.gg 2->10 14 Found malware configuration 2->14 16 Malicious sample detected (through community Yara rule) 2->16 18 Antivirus / Scanner detection for submitted sample 2->18 20 7 other signatures 2->20 6 pisun.exe 3 4 2->6         started        signatures3 process4 dnsIp5 12 such-captain.gl.at.ply.gg 147.185.221.27, 7723 SALSGIVERUS United States 6->12 22 Disables zone checking for all users 6->22 24 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 6->24 signatures6
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
147.185.221.27
 such-captain.gl.at.ply.gg United States
12087 SALSGIVERUS true

Contacted Domains

Name IP Active
such-captain.gl.at.ply.gg 147.185.221.27 true