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Windows
Analysis Report
1728051009222f21cd7228745d779c350a32dd00cb3283817395c6233d0e35bbb8007ee686964.dat-decoded.exe
Overview
General Information
| Sample name: | 1728051009222f21cd7228745d779c350a32dd00cb3283817395c6233d0e35bbb8007ee686964.dat-decoded.exe |
| Analysis ID: | 1525928 |
| MD5: | 270a0b31b0dea72f9d1dd6c9806dbe98 |
| SHA1: | c35c899588142880f3d8278a8032cbdb22b0a267 |
| SHA256: | 022c8a1e18ce200f388c24ec8c8ad3cbd493afd851822558016fddde688c9b35 |
| Tags: | base64-decodedexeuser-abuse_ch |
| Infos: |  |
Errors
| |
Detection
PureLog Stealer, zgRAT
| Score: | 76 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected PureLog Stealer
Yara detected zgRAT
Machine Learning detection for sample
Binary contains a suspicious time stamp
PE file does not import any functions
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Yara signature match
Classification
| Name | Description | Attribution | Blogpost URLs | Link |
|---|---|---|---|---|
| zgRAT | zgRAT is a Remote Access Trojan malware which sometimes drops other malware such as AgentTesla malware. zgRAT has an inforstealer use which targets browser information and cryptowallets.Usually spreads by USB or phishing emails with -zip/-lnk/.bat/.xlsx attachments and so on. | No Attribution |
⊘No configs have been found
| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_zgRAT_1 | Yara detected zgRAT | Joe Security | ||
| JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
| MALWARE_Win_zgRAT | Detects zgRAT | ditekSHen |
|
⊘No Sigma rule has matched
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |   |
|---|
| Source: | ReversingLabs: | ||
| Source: | Joe Sandbox ML: | ||
| Source: | Static PE information: | ||
| Source: | Static PE information: | ||
System Summary | |
|---|
| Source: | Matched rule: | ||
| Source: | Static PE information: | ||
| Source: | Binary or memory string: | ||
| Source: | Static PE information: | ||
| Source: | Matched rule: | ||
| Source: | Classification label: | ||
| Source: | Static PE information: | ||
| Source: | Static file information: | ||
| Source: | ReversingLabs: | ||
| Source: | Static PE information: | ||
| Source: | Static PE information: | ||
| Source: | Static PE information: | ||
Stealing of Sensitive Information | |
|---|
| Source: | File source: | ||
| Source: | File source: | ||
Remote Access Functionality | |
|---|
| Source: | File source: | ||
| Source: | File source: | ||
| Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gather Victim Identity Information | Acquire Infrastructure | Valid Accounts | Windows Management Instrumentation | Path Interception | Path Interception | 1 Timestomp | OS Credential Dumping | System Service Discovery | Remote Services | Data from Local System | Data Obfuscation | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
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| Source | Detection | Scanner | Label | Link |
|---|---|---|---|---|
| 13% | ReversingLabs | |||
| 100% | Joe Sandbox ML |
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
| Joe Sandbox version: | 41.0.0 Charoite |
| Analysis ID: | 1525928 |
| Start date and time: | 2024-10-04 16:41:20 +02:00 |
| Joe Sandbox product: | CloudBasic |
| Overall analysis duration: | 0h 1m 59s |
| Hypervisor based Inspection enabled: | false |
| Report type: | full |
| Cookbook file name: | default.jbs |
| Analysis system description: | Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01 |
| Number of analysed new started processes analysed: | 4 |
| Number of new started drivers analysed: | 0 |
| Number of existing processes analysed: | 0 |
| Number of existing drivers analysed: | 0 |
| Number of injected processes analysed: | 0 |
| Technologies: |
|
| Analysis Mode: | default |
| Analysis stop reason: | Timeout |
| Sample name: | 1728051009222f21cd7228745d779c350a32dd00cb3283817395c6233d0e35bbb8007ee686964.dat-decoded.exe |
| Detection: | MAL |
| Classification: | mal76.troj.winEXE@0/0@0/0 |
| Cookbook Comments: |
|
- No process behavior to analyse as no analysis process or sample was found
- Corrupt sample or wrongly selected analyzer. Details: %1 is not a valid Win32 application.
- Exclude process from analysis (whitelisted): dllhost.exe, WMIADAP.exe, SIHClient.exe, backgroundTaskHost.exe
- Excluded domains from analysis (whitelisted): slscr.update.microsoft.com
- VT rate limit hit for: 1728051009222f21cd7228745d779c350a32dd00cb3283817395c6233d0e35bbb8007ee686964.dat-decoded.exe
⊘No simulations
⊘No created / dropped files found
| File type: | |
| Entropy (8bit): | 5.615030308263674 |
| TrID: |
|
| File name: | 1728051009222f21cd7228745d779c350a32dd00cb3283817395c6233d0e35bbb8007ee686964.dat-decoded.exe |
| File size: | 878'315 bytes |
| MD5: | 270a0b31b0dea72f9d1dd6c9806dbe98 |
| SHA1: | c35c899588142880f3d8278a8032cbdb22b0a267 |
| SHA256: | 022c8a1e18ce200f388c24ec8c8ad3cbd493afd851822558016fddde688c9b35 |
| SHA512: | 06e5a971db82ca8fb14ce958a64650161c069a7ff5f8d4a73cc151e80471e8271c38085c20f365c0500f5813b668a934a0742e5a52b29049a288ae11a431a194 |
| SSDEEP: | 12288:/B5dzVuZI7fhlECh5tnSoWQzSInwL76y4:JzVuKDBJjWQzSIwL+y |
| TLSH: | 0F151703BA968F63C15B4B32C49748180B7CDD467A73E74F788D3B266813766784AE47 |
| File Content Preview: | MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...$.................0..h............... ........@.. .......................@............@................................ |
 | |
| Icon Hash: | 00928e8e8686b000 |
| Entrypoint: | 0x4a86ce |
| Entrypoint Section: | .text |
| Digitally signed: | false |
| Imagebase: | 0x400000 |
| Subsystem: | windows gui |
| Image File Characteristics: | EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE |
| DLL Characteristics: | DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE |
| Time Stamp: | 0xF5C11724 [Fri Aug 27 17:51:32 2100 UTC] |
| TLS Callbacks: | |
| CLR (.Net) Version: | |
| OS Version Major: | 4 |
| OS Version Minor: | 0 |
| File Version Major: | 4 |
| File Version Minor: | 0 |
| Subsystem Version Major: | 4 |
| Subsystem Version Minor: | 0 |
| Import Hash: |
| Instruction |
|---|
| les ebp, fword ptr [eax-5FE5C010h] |
| jnl 00007F3FC5AD7F3Eh |
| fcom dword ptr [esi+33h] |
| nop |
| out dx, eax |
| and cl, byte ptr [ecx+4Eh] |
| mov dword ptr [edi-263E2EC8h], 81C3A2CAh |
| cmp bl, dh |
| mov sp, ss |
| or esi, dword ptr [esi] |
| cwde |
| cmc |
| add eax, A6B74EE0h |
| jp 00007F3FC5AD7EF0h |
| sub byte ptr [ebp-25D97149h], ah |
| lodsd |
| mov edi, 9D3A3FA4h |
| in al, 2Ch |
| js 00007F3FC5AD7EA4h |
| or eax, 9BCC5F50h |
| push 0000007Eh |
| inc esi |
| bound edx, dword ptr [ebp+ecx*4+13h] |
| retn D8F6h |
| mov eax, F73990E8h |
| pop esi |
| ret |
| scasd |
| cmc |
| sbb byte ptr [ebp-80h], FFFFFFBEh |
| lahf |
| rcl byte ptr [ebx+2DD5697Ch], 1 |
| test eax, B312256Fh |
| iretd |
| lodsb |
| cdq |
| cmp ecx, eax |
| sbb byte ptr [ebp-59h], bh |
| adc byte ptr [ebx-44C41792h], bl |
| jnp 00007F3FC5AD7EEDh |
| js 00007F3FC5AD7F1Ch |
| int 59h |
| sbb ah, dh |
| outsb |
| call far 4EE0h : 40EC01B7h |
| mov bh, 9Ah |
| test al, 83h |
| xchg eax, ebp |
| outsb |
| out FCh, al |
| cmp byte ptr [ebx], dl |
| lodsd |
| out 43h, al |
| cmp dword ptr [edx], CFBCAADEh |
| or byte ptr [ecx], ah |
| adc eax, E7EFE6E8h |
| wait |
| fstcw word ptr [edx+4ACE366Fh] |
| lahf |
| or esp, edx |
| jmp far B2A4h : 29D67CB0h |
| scasd |
| xor dword ptr [edi], edi |
| and esi, dword ptr [ecx] |
| sub ah, byte ptr [ebp-5D39CF6Ch] |
| sal byte ptr [7437BC4Eh], FFFFFF82h |
| retf FCA6h |
| nop |
| sal byte ptr [eax+00000000h], 1 |
| Name | Virtual Address | Virtual Size | Is in Section |
|---|---|---|---|
| IMAGE_DIRECTORY_ENTRY_EXPORT | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_IMPORT | 0xa8680 | 0x4b | .text |
| IMAGE_DIRECTORY_ENTRY_RESOURCE | 0xaa000 | 0x27fbc | .rsrc |
| IMAGE_DIRECTORY_ENTRY_EXCEPTION | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_SECURITY | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_BASERELOC | 0xd2000 | 0xc | .reloc |
| IMAGE_DIRECTORY_ENTRY_DEBUG | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_COPYRIGHT | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_GLOBALPTR | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_TLS | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_IAT | 0x2000 | 0x8 | .text |
| IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT | 0x0 | 0x0 | |
| IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR | 0x2008 | 0x48 | .text |
| IMAGE_DIRECTORY_ENTRY_RESERVED | 0x0 | 0x0 |
| Name | Virtual Address | Virtual Size | Raw Size | MD5 | Xored PE | ZLIB Complexity | File Type | Entropy | Characteristics |
|---|---|---|---|---|---|---|---|---|---|
| .text | 0x2000 | 0xa66d4 | 0xa6800 | 45ad1a88d7563efbe3a11703259556e7 | False | 0.4239043731231231 | data | 5.808201915921424 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ |
| .rsrc | 0xaa000 | 0x27fbc | 0x28000 | 47e51a0fbd01cde1cb4e2959254891f1 | False | 0.341534423828125 | data | 4.680559556522563 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ |
| .reloc | 0xd2000 | 0xc | 0x200 | 73550edd03f4ec134296c726bd8d43e6 | False | 0.353515625 | data | 3.9693619935523348 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ |
Key Decision
Richest Path
Thread / callback creation
Lower opacity -> Library Node⊘No network behavior found
⊘No statistics
⊘No system behavior
⊘No disassembly