Windows
Analysis Report
Unconfirmed 739754.dll
Overview
General Information
Sample name: | Unconfirmed 739754.dll (renamed file extension from crdownload to dll) |
Original sample name: | Unconfirmed 739754.crdownload |
Analysis ID: | 1671111 |
MD5: | f62de98ee452ed4ea0543ee5129fd21d |
SHA1: | 61578f17f4150998911457befb59aed431e393e3 |
SHA256: | 5bd74c996047c87917e5cea60eb924e8a63d64271a8787eb29eaee855cdfcd13 |
Infos: | |
Detection
Score: | 1 |
Range: | 0 - 100 |
Confidence: | 60% |
Signatures
Classification
- System is w10x64
loaddll32.exe (PID: 2680 cmdline:
loaddll32. exe "C:\Us ers\user\D esktop\Unc onfirmed 7 39754.dll" MD5: 51E6071F9CBA48E79F10C84515AAE618) conhost.exe (PID: 1888 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cmd.exe (PID: 2516 cmdline:
cmd.exe /C rundll32. exe "C:\Us ers\user\D esktop\Unc onfirmed 7 39754.dll" ,#1 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) rundll32.exe (PID: 2728 cmdline:
rundll32.e xe "C:\Use rs\user\De sktop\Unco nfirmed 73 9754.dll", #1 MD5: 889B99C52A60DD49227C5E485A016679)
- cleanup
- • Compliance
- • Networking
- • System Summary
- • Hooking and other Techniques for Hiding and Protection
- • Malware Analysis System Evasion
- • HIPS / PFW / Operating System Protection Evasion
Click to jump to signature section
There are no malicious signatures, click here to show all signatures.
Source: | Static PE information: |
Source: | Binary string: |
Source: | UDP traffic detected without corresponding DNS query: |
Source: | DNS traffic detected: |
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Source: | String found in binary or memory: |
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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 | 1 DLL Side-Loading | 11 Process Injection | 1 Rundll32 | OS Credential Dumping | 1 Virtualization/Sandbox Evasion | Remote Services | Data from Local System | 1 Non-Application Layer Protocol | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
Credentials | Domains | Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | 1 DLL Side-Loading | 1 Virtualization/Sandbox Evasion | LSASS Memory | 1 System Information Discovery | Remote Desktop Protocol | Data from Removable Media | 1 Application Layer Protocol | Exfiltration Over Bluetooth | Network Denial of Service |
Email Addresses | DNS Server | Domain Accounts | At | Logon Script (Windows) | Logon Script (Windows) | 11 Process Injection | Security Account Manager | Query Registry | SMB/Windows Admin Shares | Data from Network Shared Drive | Steganography | Automated Exfiltration | Data Encrypted for Impact |
Employee Names | Virtual Private Server | Local Accounts | Cron | Login Hook | Login Hook | 1 DLL Side-Loading | NTDS | System Network Configuration Discovery | Distributed Component Object Model | Input Capture | Protocol Impersonation | Traffic Duplication | Data Destruction |
This section contains all screenshots as thumbnails, including those not shown in the slideshow.
Source | Detection | Scanner | Label | Link |
---|---|---|---|---|
0% | Avira URL Cloud | safe | ||
0% | Avira URL Cloud | safe |
Name | IP | Active | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|---|
bg.microsoft.map.fastly.net | 199.232.210.172 | true | false | high | |
pki-goog.l.google.com | 142.250.68.227 | true | false | high | |
c.pki.goog | unknown | unknown | false | high |
Name | Source | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|
false |
| unknown | ||
false |
| unknown |
Joe Sandbox version: | 42.0.0 Malachite |
Analysis ID: | 1671111 |
Start date and time: | 2025-04-22 16:46:50 +02:00 |
Joe Sandbox product: | CloudBasic |
Overall analysis duration: | 0h 1m 52s |
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 134, 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: | Unconfirmed 739754.dll (renamed file extension from crdownload to dll) |
Original Sample Name: | Unconfirmed 739754.crdownload |
Detection: | CLEAN |
Classification: | clean1.winDLL@6/0@1/0 |
Cookbook Comments: |
|
- Excluded IPs from analysis (wh
itelisted): 184.29.183.29 - Excluded domains from analysis
(whitelisted): fs.microsoft.c om, ctldl.windowsupdate.com.de livery.microsoft.com, ctldl.wi ndowsupdate.com, wu-b-net.traf ficmanager.net - Not all processes where analyz
ed, report is missing behavior information
Time | Type | Description |
---|---|---|
10:47:46 | API Interceptor |
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
pki-goog.l.google.com | Get hash | malicious | Unknown | Browse |
| |
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | LockBit ransomware | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | LockBit ransomware | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Amadey, LockBit ransomware, LummaC Stealer, Vidar | Browse |
| ||
Get hash | malicious | AsyncRAT, DcRat | Browse |
| ||
Get hash | malicious | Babuk | Browse |
| ||
Get hash | malicious | Babuk | Browse |
| ||
bg.microsoft.map.fastly.net | Get hash | malicious | Unknown | Browse |
| |
Get hash | malicious | HTMLPhisher | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Phisher | Browse |
| ||
Get hash | malicious | AsyncRAT, DcRat | Browse |
| ||
Get hash | malicious | PureCrypter | Browse |
| ||
Get hash | malicious | PureCrypter | Browse |
| ||
Get hash | malicious | AsyncRAT, DcRat | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
|
File type: | |
Entropy (8bit): | 5.680936736950834 |
TrID: |
|
File name: | Unconfirmed 739754.dll |
File size: | 55'296 bytes |
MD5: | f62de98ee452ed4ea0543ee5129fd21d |
SHA1: | 61578f17f4150998911457befb59aed431e393e3 |
SHA256: | 5bd74c996047c87917e5cea60eb924e8a63d64271a8787eb29eaee855cdfcd13 |
SHA512: | d6faa30b286f8fafec0c74f3112e7062ca2e6909fdf6db3f46fcee641948dc4d9bfdcbe2f39a89592f7e91439cc673c90b4b1f2992845b969620c7d165c31293 |
SSDEEP: | 1536:QwbusnuDZsztM4QMrjWtz6tXyo6bCBGF0qIxjF5:Qwi3DCztzQMrjW1vDCBFqmjr |
TLSH: | 7043C75033FCC33AE6FF2B7D75B0405106F6F689A531DA9D6E81649E2E22B404B61B63 |
File Content Preview: | MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...e.~g.........." ..0.................. ........... .......................@............@................................ |
Icon Hash: | 7ae282899bbab082 |
Entrypoint: | 0x1000edfa |
Entrypoint Section: | .text |
Digitally signed: | false |
Imagebase: | 0x10000000 |
Subsystem: | windows cui |
Image File Characteristics: | EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, DLL |
DLL Characteristics: | DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE |
Time Stamp: | 0x677ED065 [Wed Jan 8 19:22:13 2025 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: | dae02f32a21e03ce65412f6e56942daa |
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Name | Virtual Address | Virtual Size | Is in Section |
---|---|---|---|
IMAGE_DIRECTORY_ENTRY_EXPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_IMPORT | 0xeda8 | 0x4f | .text |
IMAGE_DIRECTORY_ENTRY_RESOURCE | 0x10000 | 0x42c | .rsrc |
IMAGE_DIRECTORY_ENTRY_EXCEPTION | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_SECURITY | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_BASERELOC | 0x12000 | 0xc | .reloc |
IMAGE_DIRECTORY_ENTRY_DEBUG | 0xec70 | 0x1c | .text |
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 | 0xce00 | 0xce00 | b0ca68de35df2275b1ccdaab31fc5c3e | False | 0.4386377427184466 | data | 5.805383443786634 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ |
.rsrc | 0x10000 | 0x42c | 0x600 | ac20157ed92d53922c92594ba79a8f8d | False | 0.2734375 | data | 2.4469577481207856 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ |
.reloc | 0x12000 | 0xc | 0x200 | 225ee030e13978e0942d0939b4326e52 | False | 0.044921875 | data | 0.08153941234324169 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ |
Name | RVA | Size | Type | Language | Country | ZLIB Complexity |
---|---|---|---|---|---|---|
RT_VERSION | 0x10058 | 0x3d0 | data | 0.3985655737704918 |
DLL | Import |
---|---|
mscoree.dll | _CorDllMain |
Description | Data |
---|---|
Translation | 0x0000 0x04b0 |
Comments | |
CompanyName | Tyler Technologies |
FileDescription | Tyler.IMS.Publishing |
FileVersion | 1.4.5.0 |
InternalName | Tyler.IMS.Publishing.dll |
LegalCopyright | Copyright Tyler Technologies 2009-2021 |
LegalTrademarks | |
OriginalFilename | Tyler.IMS.Publishing.dll |
ProductName | Tyler.IMS.Publishing |
ProductVersion | 1.4.5.0 |
Assembly Version | 1.4.5.0 |
Download Network PCAP: filtered – full
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
---|---|---|---|---|
Apr 22, 2025 16:47:44.770390987 CEST | 60044 | 53 | 192.168.2.5 | 1.1.1.1 |
Apr 22, 2025 16:47:44.910836935 CEST | 53 | 60044 | 1.1.1.1 | 192.168.2.5 |
Timestamp | Source IP | Dest IP | Trans ID | OP Code | Name | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|
Apr 22, 2025 16:47:44.770390987 CEST | 192.168.2.5 | 1.1.1.1 | 0x4bd8 | Standard query (0) | A (IP address) | IN (0x0001) | false |
Timestamp | Source IP | Dest IP | Trans ID | Reply Code | Name | CName | Address | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|---|---|
Apr 22, 2025 16:47:43.994223118 CEST | 1.1.1.1 | 192.168.2.5 | 0xd757 | No error (0) | 199.232.210.172 | A (IP address) | IN (0x0001) | false | ||
Apr 22, 2025 16:47:43.994223118 CEST | 1.1.1.1 | 192.168.2.5 | 0xd757 | No error (0) | 199.232.214.172 | A (IP address) | IN (0x0001) | false | ||
Apr 22, 2025 16:47:44.910836935 CEST | 1.1.1.1 | 192.168.2.5 | 0x4bd8 | No error (0) | pki-goog.l.google.com | CNAME (Canonical name) | IN (0x0001) | false | ||
Apr 22, 2025 16:47:44.910836935 CEST | 1.1.1.1 | 192.168.2.5 | 0x4bd8 | No error (0) | 142.250.68.227 | A (IP address) | IN (0x0001) | false |
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Target ID: | 0 |
Start time: | 10:47:45 |
Start date: | 22/04/2025 |
Path: | C:\Windows\System32\loaddll32.exe |
Wow64 process (32bit): | true |
Commandline: | |
Imagebase: | 0x3e0000 |
File size: | 126'464 bytes |
MD5 hash: | 51E6071F9CBA48E79F10C84515AAE618 |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 1 |
Start time: | 10:47:45 |
Start date: | 22/04/2025 |
Path: | C:\Windows\System32\conhost.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff7e2000000 |
File size: | 862'208 bytes |
MD5 hash: | 0D698AF330FD17BEE3BF90011D49251D |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 2 |
Start time: | 10:47:46 |
Start date: | 22/04/2025 |
Path: | C:\Windows\SysWOW64\cmd.exe |
Wow64 process (32bit): | true |
Commandline: | |
Imagebase: | 0x220000 |
File size: | 236'544 bytes |
MD5 hash: | D0FCE3AFA6AA1D58CE9FA336CC2B675B |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 3 |
Start time: | 10:47:46 |
Start date: | 22/04/2025 |
Path: | C:\Windows\SysWOW64\rundll32.exe |
Wow64 process (32bit): | true |
Commandline: | |
Imagebase: | 0x620000 |
File size: | 61'440 bytes |
MD5 hash: | 889B99C52A60DD49227C5E485A016679 |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |