MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23c589943fbd3d7837f1ddf96cb86c17f62973987f6bac016ebe4dd3c01a1915. 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 7 File information Comments
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SHA256 hash: 23c589943fbd3d7837f1ddf96cb86c17f62973987f6bac016ebe4dd3c01a1915
SHA3-384 hash: 743c4a47f1ac25f7ed3a3d487449e099ad5621a32df04628de5bdac2dc45ddc68bfaa057356d824cad383ca3b31b1ebf
SHA1 hash: 6018f351a861908e30ace9cc5faad5b57a1ee949
MD5 hash: e8cd923f317a64dfb8bb80836ec51057
humanhash: eighteen-fourteen-mississippi-neptune
File name:tuKdhlHr84huM9Q.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:662'016 bytes
First seen:2021-11-10 04:38:27 UTC
Last seen:2021-11-12 09:05:14 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:KCqoJS7JSItD00TdOpiZ/5qA6Zw9pNzeiv7QmJ:KCu7JLC0miuknxzQmJ
Threatray 12'568 similar samples on MalwareBazaar
TLSH T168E44833D154B2C7C4766E3FF812B0692130B3F7CDDA868BAE99997E14201BDA366531
File icon (PE):PE icon
dhash icon 74f4c4d4d4d4d4d4 (6 x SnakeKeylogger, 5 x AgentTesla, 5 x Loki)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/204596/
Detection(s):
Win.Packed.Msilzilla-9907447-0
Create hunting rule

Win.Packed.Msilzilla-9907552-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/618b4ceaa00afa9663a29b17/reports/1d8bdae7-f4b5-4c97-87c7-7827b75d2089/overview
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9a140cb3-309e-4d49-8d92-ed1c459dc5b4
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/886462
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts 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)
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 518935 Sample: tuKdhlHr84huM9Q.exe Startdate: 10/11/2021 Architecture: WINDOWS Score: 100 62 Found malware configuration 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 Yara detected AgentTesla 2->66 68 8 other signatures 2->68 7 tuKdhlHr84huM9Q.exe 7 2->7         started        11 kprUEGC.exe 5 2->11         started        13 kprUEGC.exe 2->13         started        process3 file4 42 C:\Users\user\AppData\Roaming\aYgqWeK.exe, PE32 7->42 dropped 44 C:\Users\user\...\aYgqWeK.exe:Zone.Identifier, ASCII 7->44 dropped 46 C:\Users\user\AppData\Local\...\tmp66D1.tmp, XML 7->46 dropped 48 C:\Users\user\...\tuKdhlHr84huM9Q.exe.log, ASCII 7->48 dropped 70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->70 72 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->72 74 Uses schtasks.exe or at.exe to add and modify task schedules 7->74 76 Adds a directory exclusion to Windows Defender 7->76 15 tuKdhlHr84huM9Q.exe 2 5 7->15         started        20 powershell.exe 25 7->20         started        22 schtasks.exe 1 7->22         started        24 tuKdhlHr84huM9Q.exe 7->24         started        78 Machine Learning detection for dropped file 11->78 80 Injects a PE file into a foreign processes 11->80 26 schtasks.exe 11->26         started        28 kprUEGC.exe 11->28         started        signatures5 process6 dnsIp7 50 snhc.in 15->50 52 mail.snhc.in 15->52 36 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->36 dropped 38 C:\Windows\System32\drivers\etc\hosts, ASCII 15->38 dropped 40 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->40 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->54 56 Tries to steal Mail credentials (via file / registry access) 15->56 58 Tries to harvest and steal ftp login credentials 15->58 60 4 other signatures 15->60 30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/23c589943fbd3d7837f1ddf96cb86c17f62973987f6bac016ebe4dd3c01a1915/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-10 04:39:07 UTC
AV detection:
14 of 44 (31.82%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=epcytfb7xu6xqn7r3x4wzodmc73cs44yp5v2yaloxzg5hqa2dekq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
35f0363054ae6e982853cf704f9ad7161a3c054463a2fbc2a6582c55a6eb76a2
AgentTesla
6207ef2afeb35589b4c9f58ac7557ffb9670c81376f436b149ad8ca45a7630f7
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676ef153270573032364c1e312a0619c99d2da980114e66cfb302ff07e480b17
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6c774012ef6641580ad729f00e565e5ab5a13e7eeca97b510f2e2e9e101b9375
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71e6c949b0e259018b39ad513305c9197afe74c9d68119db8e6e545c74ceedcb
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790b008421852f555794a5e59c91f894993dcac641104ca06087bda8c1b5ea50
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81420f42ee455db2a99c1f85b03fb213083e03c2f329f1919b9dc3044de89555
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d6db1886657d4ec8e9779d26d1550df019f40c3960d2aa6b1cd01381a6d88af8
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ebf827e50998dc2a8476b123b502efc589577ad8cd9f27dec82a19e50160f3c0
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ffbad515588df376e86216b15b2a092570d1dc91116e787de8648060ef06895c
AgentTesla
+ 12'558 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/211110-e9zrfadean/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/c62e4817-cf7c-4dd3-bf4d-c46cf61e7048/
SH256 hash:
9f77adc17008f27c5652606d9e2a9220f3bdac0534ec1999bb29940ed01aca4a
MD5 hash:
4426ccb89680b509706f761a1d22e1fe
SHA1 hash:
79890f2f60b66864ea1a76b904ed0460b91fb3cb
Link:
https://www.unpac.me/results/c62e4817-cf7c-4dd3-bf4d-c46cf61e7048/
SH256 hash:
85e68cb2994bfbfaf351130edc5a7490b7f066e227d9eacba4a27c3446143f5f
MD5 hash:
de5b48d2de9b23e5e21900da744985bf
SHA1 hash:
120d27db9d85f4a2f51ef06918542fe243580a64
Link:
https://www.unpac.me/results/c62e4817-cf7c-4dd3-bf4d-c46cf61e7048/
SH256 hash:
23c589943fbd3d7837f1ddf96cb86c17f62973987f6bac016ebe4dd3c01a1915
MD5 hash:
e8cd923f317a64dfb8bb80836ec51057
SHA1 hash:
6018f351a861908e30ace9cc5faad5b57a1ee949
Link:
https://www.unpac.me/results/c62e4817-cf7c-4dd3-bf4d-c46cf61e7048/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/23c589943fbd/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/23c589943fbd3d7837f1ddf96cb86c17f62973987f6bac016ebe4dd3c01a1915

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: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 23c589943fbd3d7837f1ddf96cb86c17f62973987f6bac016ebe4dd3c01a1915

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/204596/

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