MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AgentTesla


Vendor detections: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af
SHA3-384 hash: 74fbb20f315d53adc81341234cbbee20cc22a0d971432f54f8941222bc2fdc8cb6b4ded3d20d5dfb06b86d2d5fd2f4f6
SHA1 hash: dfd381fbc7c30d9d162c9728411240bc3d3e1c60
MD5 hash: 7656c168625b0b30f70c452ce11f9b69
humanhash: alpha-tennessee-orange-jersey
File name:INV#UZ230904.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'012'224 bytes
First seen:2023-09-26 05:26:03 UTC
Last seen:2023-09-26 05:45:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:oQSRWFFuJE/fZOo/u78inp4hcI3ixsZV9M+6ZZdFPpeCrRKFr9zkjQzu2sa6kHq/:o3BOfZOAiKh7SxsE
Threatray 5'823 similar samples on MalwareBazaar
TLSH T1EC25A59D721072DEC857D9728E68DD74EB607C6A430B9203A0E72D9FBA5D897CF140B2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
293
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
INV#UZ230904.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-09-26 05:27:59 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/29c2aaf7-050b-44de-98b3-cffaf5bb81c6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/451145/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.19386.28129.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65126ba732ffdb7a7a1475bf/reports/27aa6b1d-3935-4261-8420-b420abc21d6d/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7bf38652-0b62-48cd-bc7a-665453c4dc7b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1314251
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses process hollowing technique
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1314251 Sample: INV#UZ230904.pdf.exe Startdate: 26/09/2023 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic 2->56 58 Found malware configuration 2->58 60 Antivirus / Scanner detection for submitted sample 2->60 62 10 other signatures 2->62 7 INV#UZ230904.pdf.exe 5 2->7         started        11 VhiajYvic.exe 5 2->11         started        13 FndrE.exe 2->13         started        15 FndrE.exe 2->15         started        process3 file4 42 C:\Users\user\AppData\Roaming\VhiajYvic.exe, PE32 7->42 dropped 44 C:\Users\user\AppData\Local\...\tmp532F.tmp, XML 7->44 dropped 76 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->76 78 Uses schtasks.exe or at.exe to add and modify task schedules 7->78 80 Writes to foreign memory regions 7->80 82 Injects a PE file into a foreign processes 7->82 17 RegSvcs.exe 17 4 7->17         started        22 schtasks.exe 1 7->22         started        84 Antivirus detection for dropped file 11->84 86 Multi AV Scanner detection for dropped file 11->86 88 Machine Learning detection for dropped file 11->88 90 Sample uses process hollowing technique 11->90 24 RegSvcs.exe 3 11->24         started        26 schtasks.exe 1 11->26         started        28 RegSvcs.exe 11->28         started        30 RegSvcs.exe 11->30         started        32 conhost.exe 13->32         started        34 conhost.exe 15->34         started        signatures5 process6 dnsIp7 46 mail.frontierfulfillment.com.my 14.102.148.26, 49780, 49782, 587 IPSERVERONE-AS-APIPServerOneSolutionsSdnBhdMY Malaysia 17->46 48 api4.ipify.org 173.231.16.77, 443, 49779 WEBNXUS United States 17->48 50 api.ipify.org 17->50 40 C:\Users\user\AppData\Roaming\...\FndrE.exe, PE32 17->40 dropped 64 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->64 66 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->66 68 May check the online IP address of the machine 17->68 36 conhost.exe 22->36         started        52 64.185.227.156, 443, 49781 WEBNXUS United States 24->52 54 api.ipify.org 24->54 70 Tries to steal Mail credentials (via file / registry access) 24->70 72 Tries to harvest and steal browser information (history, passwords, etc) 24->72 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->74 38 conhost.exe 26->38         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Suspicious
First seen:
2023-09-25 02:58:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
33
AV detection:
23 of 36 (63.89%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvrrtpus6gxirycxwsu5zj34oypcxjnvfqd5i74pskz4dsbvksxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1e58093d8f9fbd98920435ef868b14e507c33b137b2f9d415f250334db8c2d65
AgentTesla
3aa409bc939bc8f42a7cd90af7fbd01c3e3c0b943a2988224b439df18ec3d3b5
AgentTesla
bbb9a417f02e708434b3737c20a59fa322c15b170be8befed9167c2f5573f2f0
AgentTesla
be53b6f5ff15575799a0a929be641c79c173fa0b6de9c95f0ac524c10c1b9c5d
AgentTesla
cd49b022411c34b834f765d874611467fe327f58a0d3c83cf33d78fb3989e687
AgentTesla
dadca1f5e784742f6e72c59228f1887dfd5c7977c28b1198164e146fdff84555
AgentTesla
ee2d6cda7585d392ee28500511546801d26497bf883838e469c3892ea5b21551
AgentTesla
+ 5'813 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230926-f4w9sseh3w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
92091c4cc098141a500efb7cc5a58e61d38f761434291bb695c22d50b3c04a10
MD5 hash:
39da4d6694cb4da54dc8de3b9b5640a4
SHA1 hash:
ac44b48ed49ad0a9a02f38c1b10a45e3c748d9ea
Link:
https://www.unpac.me/results/7bb4a292-3a9f-4555-9f15-9b2d6c6363fc/
SH256 hash:
62206234b0b1d105ce9dfe6ea0c5948f6d7ee18cec2ed5b65b21e7120de565be
MD5 hash:
04b623e012d84b44d58696af4f2476d9
SHA1 hash:
a861bab407bca504c12e57903d398fc2097daf2e
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/7bb4a292-3a9f-4555-9f15-9b2d6c6363fc/
Parent samples :
605e2bf9c188c72177da3dd80ae80d80fb2ae131705ebcdce9842342c0e3db50
ee2d6cda7585d392ee28500511546801d26497bf883838e469c3892ea5b21551
6d033582691fbfed1308554793024626bcc07d07e904aca0d26f93f2a083893d
dadca1f5e784742f6e72c59228f1887dfd5c7977c28b1198164e146fdff84555
856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af
2a5a6a4dc7b104e406e7bfccac0b7f2ebdd391626ec8afe1ba5adeee733ef339
ec35b0c10000f1cfcf5e667c474e1ab439dd9ef1f62a4732eae437b4c968a1cf
3033730f6b585fdcb6e1cf2a88e8debd2f73e2e5c7064ec0b13e471bcffe191c
9767ad01a52ecc0e0118d679e289e3d100f84c7883808d2b9509c69dffd87026
8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94
1f22495e0f459d46c901746a490c146552173cb83d629bdb694f5961c09be657
1b96cccba8208b1f786a5fbf1b877e967a3720dba3614044ad0fa3a5c4f5fffb
SH256 hash:
0b4c93addb0071e4cc368bc5e46a535e2eafd360b5db8b6c87620d7225eade2d
MD5 hash:
e17d9bb18c1bf12de8c75fa570f4cf72
SHA1 hash:
97751a31524557387d136e0e42e204186d00b5dd
Link:
https://www.unpac.me/results/7bb4a292-3a9f-4555-9f15-9b2d6c6363fc/
SH256 hash:
856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af
MD5 hash:
7656c168625b0b30f70c452ce11f9b69
SHA1 hash:
dfd381fbc7c30d9d162c9728411240bc3d3e1c60
Link:
https://www.unpac.me/results/7bb4a292-3a9f-4555-9f15-9b2d6c6363fc/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/856319be92f1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

7z 6f73c226ad57f9dadecbefb3c07481ce69514b9bcf531607da0ba857daa95613

AgentTesla

Executable exe 856319be92f1ae88e057b4a9dca77c761e2ba5b52c07d47f8f92b3c1c83554af

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 6f73c226ad57f9dadecbefb3c07481ce69514b9bcf531607da0ba857daa95613
Cape
Cape
https://www.capesandbox.com/analysis/451145/
  
Dropped by
MD5 d0222af039a90f193ec9a68acdbf5dce

Comments