MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a8bf42bc4aa5887faaa5cbf26cd86afe9806621afa5a49d9f70d328ef018f96. 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: 12


Intelligence 12 IOCs YARA 8 File information Comments
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SHA256 hash: 0a8bf42bc4aa5887faaa5cbf26cd86afe9806621afa5a49d9f70d328ef018f96
SHA3-384 hash: 1376a650d9dbabbf313cc34755792761e9223b971600c5e05c5b3c1820bf43c82bfba652ada137ec8f72b42a525aad5e
SHA1 hash: 8d797038de54af3efd2710edc40d287c0103fae0
MD5 hash: 31107ddbf052f8d5d0198ee033c97b9d
humanhash: violet-kilo-butter-twenty
File name:I6htd9f1uJnyhe0.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:555'008 bytes
First seen:2021-09-28 11:02:35 UTC
Last seen:2021-09-28 12:08:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:L82Ni+hBr7IUABstMicl570g41jeaGjo4mN7Dx5mQ:Y2Ni+hBr8UAkow5jea6o4mB9AQ
Threatray 10'363 similar samples on MalwareBazaar
TLSH T193C4AEDE1C68A7DFFB0E05F8FA79279801ABD428C4EBB5D3D606B0332076A595920CD5
File icon (PE):PE icon
dhash icon f8d888c898a89098 (8 x Loki, 4 x NanoCore, 4 x AgentTesla)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
I6htd9f1uJnyhe0.exe
Verdict:
Malicious activity
Analysis date:
2021-09-28 11:03:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6beea30a-a6e9-41b4-8be1-954c190712e4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048.6348.718.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1aedcce1-fd00-4576-821c-a1411f7c1fea
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/859943
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Found malware configuration
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Defender Exclusion
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 steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 492385 Sample: I6htd9f1uJnyhe0.exe Startdate: 28/09/2021 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Multi AV Scanner detection for dropped file 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 7 other signatures 2->36 7 I6htd9f1uJnyhe0.exe 7 2->7         started        process3 file4 24 C:\Users\user\AppData\Roaming\HTYzPm.exe, PE32 7->24 dropped 26 C:\Users\user\AppData\Local\...\tmp7E72.tmp, XML 7->26 dropped 28 C:\Users\user\...\I6htd9f1uJnyhe0.exe.log, ASCII 7->28 dropped 38 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->38 40 Uses schtasks.exe or at.exe to add and modify task schedules 7->40 42 Writes to foreign memory regions 7->42 44 2 other signatures 7->44 11 MSBuild.exe 2 7->11         started        14 MSBuild.exe 7->14         started        16 powershell.exe 25 7->16         started        18 schtasks.exe 1 7->18         started        signatures5 process6 signatures7 46 Tries to steal Mail credentials (via file access) 11->46 48 Tries to harvest and steal browser information (history, passwords, etc) 11->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->52 20 conhost.exe 16->20         started        22 conhost.exe 18->22         started        process8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0a8bf42bc4aa5887faaa5cbf26cd86afe9806621afa5a49d9f70d328ef018f96/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-28 08:41:01 UTC
AV detection:
17 of 27 (62.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bkf7ik6evjmip6vkls7sntmgv7uyazrbv6s2jhm7odjsr3ybr6la._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
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c10e72609ceae12c610e6c58a706c5bea0f962951e8366a8f6dee3cc42d0addd
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d0ecbdd58eb20d1490dff0164d6a7ea8d16e75f4e6faeb1af3ded350386bba0c
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e8bf33de2b8e3724eadc80fcdeab2cca3048f469b1c8ae4db171d6f809d00ef7
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f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9
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fc4ef113e3f1b97986e0bb90ad6e9c2621c1adeaffb34cb317b25417332adb37
AgentTesla
+ 10'353 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210928-m5pdxabggr/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot2046248941:AAG5Z0PyWwtApmPaysBm59voK10ec9Rgnaw/sendDocument
Unpacked files
SH256 hash:
5d8b103deaa39a876e598fb204504d328ca9fd11af8813a3252e8e12a89481f8
MD5 hash:
4dcc0309668530fad1f69eca62742a12
SHA1 hash:
cabf05039ccef1fa8a9c3c63b3800378cbe7b240
Link:
https://www.unpac.me/results/1b28c1fa-e9f6-4944-bfd1-b9e0b5e2bda2/
SH256 hash:
284ec3a32ef6f00b15d408cecb212d84429b95a66d815948db9ca497e9eb0993
MD5 hash:
b4e722adb69f20d7d5ee728a0ae8a47f
SHA1 hash:
535aa6779bf00d8383130dd15a2e17ee4810bb3c
Link:
https://www.unpac.me/results/1b28c1fa-e9f6-4944-bfd1-b9e0b5e2bda2/
SH256 hash:
d70f4d8a1644c2ad14c787ba79de4bd9f0528c327d84b8d80001793e9b5f558d
MD5 hash:
ce87178bf50e45d669116b02a77d4594
SHA1 hash:
33e26a956925e08cfeee467c040abe9fd1d781e4
Link:
https://www.unpac.me/results/1b28c1fa-e9f6-4944-bfd1-b9e0b5e2bda2/
SH256 hash:
6a671abf66304301602b4afd0902840bc3915455cffc58d8916eaa693abe33ec
MD5 hash:
681eca96e4e7b513317178dc7065ef39
SHA1 hash:
24af82015bc57d125f1ccb759840118b2283d1dc
Link:
https://www.unpac.me/results/1b28c1fa-e9f6-4944-bfd1-b9e0b5e2bda2/
SH256 hash:
0a8bf42bc4aa5887faaa5cbf26cd86afe9806621afa5a49d9f70d328ef018f96
MD5 hash:
31107ddbf052f8d5d0198ee033c97b9d
SHA1 hash:
8d797038de54af3efd2710edc40d287c0103fae0
Link:
https://www.unpac.me/results/1b28c1fa-e9f6-4944-bfd1-b9e0b5e2bda2/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/0a8bf42bc4aa/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/0a8bf42bc4aa5887faaa5cbf26cd86afe9806621afa5a49d9f70d328ef018f96

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Telegram_Exfiltration_Via_Api
Create hunting rule
Author:lsepaolo
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

Executable exe 0a8bf42bc4aa5887faaa5cbf26cd86afe9806621afa5a49d9f70d328ef018f96

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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