MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 231af4f9626622427ed4df07e6ed351172b9a3417ee26235ba05ec14ed7dc7e4. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 231af4f9626622427ed4df07e6ed351172b9a3417ee26235ba05ec14ed7dc7e4
SHA3-384 hash: 5026c204942e02b64190ac5ace0d2d702e26ff96ae94695cb14b58dc5515490473fb4168333654228e209ac62bd562c3
SHA1 hash: 068f5c7d8da4921da77461002858963abc258f9d
MD5 hash: dde1f0c6b610e96e966d5fd5e0af8bca
humanhash: friend-high-twelve-white
File name:shipping invoice documents.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:885'760 bytes
First seen:2022-02-18 03:17:52 UTC
Last seen:2022-02-19 10:51:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'656 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:O5Mh5Vko5vwOxlEhfGCDic+Pm7kABP7nhneLGLSQ5DFJswfld1tyw5mHAzgh:VwOxlEh+0QmgM7nAabki1/m+gh
Threatray 15'816 similar samples on MalwareBazaar
TLSH T16215BF2631EF9452C362EAB28FC9ACBF87ADF573120F753A34C527468722B509942375
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/242421/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.57439.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe formbook obfuscated packed
Link:
https://www.filescan.io/uploads/620f0feea2660f3bb9f73a28/reports/5eebade7-623d-4531-8662-be102b9beafb/overview
Result
Verdict:
UNKNOWN
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/bf9402c1-a46f-40b6-bdb3-0b61d58313d6
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/942000
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
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
Malicious sample detected (through community Yara rule)
Modifies the hosts file
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 574478 Sample: shipping invoice documents.exe Startdate: 18/02/2022 Architecture: WINDOWS Score: 100 31 mail.butterflymotors.com 2->31 33 butterflymotors.com 2->33 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 10 other signatures 2->45 7 shipping invoice documents.exe 3 2->7         started        11 tKZVPq.exe 3 2->11         started        13 tKZVPq.exe 2 2->13         started        signatures3 process4 file5 23 C:\...\shipping invoice documents.exe.log, ASCII 7->23 dropped 47 Injects a PE file into a foreign processes 7->47 15 shipping invoice documents.exe 2 5 7->15         started        49 Multi AV Scanner detection for dropped file 11->49 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->51 53 Machine Learning detection for dropped file 11->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->55 19 tKZVPq.exe 2 11->19         started        21 tKZVPq.exe 2 13->21         started        signatures6 process7 file8 25 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 15->25 dropped 27 C:\Windows\System32\drivers\etc\hosts, ASCII 15->27 dropped 29 C:\Users\user\...\tKZVPq.exe:Zone.Identifier, ASCII 15->29 dropped 35 Modifies the hosts file 15->35 37 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->37 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/231af4f9626622427ed4df07e6ed351172b9a3417ee26235ba05ec14ed7dc7e4/
Threat name:
ByteCode-MSIL.Infostealer.DarkStealer
Create hunting rule
Status:
Malicious
First seen:
2022-02-18 03:18:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=emnpj6lcmyree7wu34d6n3jvcfzlti2bp3rgenn2axwbj3l5y7sa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3615fadc8219a9743616b35e7861d40c787191709875764fee8f22a4749d1b8d
AgentTesla
5cc8c8e81ebe07e57ff61c75a204988a04071da991cf85a5bf85ddca60597fcf
AgentTesla
79437d0724b805fd6cdf288d9f1e8fdea41a4b8d2a32a2690c951590e9077502
AgentTesla
855cd108ac5b3df456f5dac8b276592df59ff70f019c8fd1a30bc66e43d03317
AgentTesla
b7c392fdfb83df479372c77f3fc1e91fde1f1317ec3c944380e0262df33638a9
AgentTesla
c91de651908108a492c93af5470378807f9a2cc8b9ee3de487b816db3cd6f682
AgentTesla
fafe3c7c1660f4baadeaedff9ae0ca32e57407b991f01e5a965e8e19f6c133b1
AgentTesla
+ 15'806 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/220218-dtmlhahhc4/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Drops file in Windows directory
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:
c8708eeaae88dc4b2b72997992c93204bcd582cdb483ebb0fff00bd554310244
MD5 hash:
6fdfbcb0177a4e43515dfae52422c71a
SHA1 hash:
ce3e3ba8aa4edac0f63bb3567879c1a3626f1821
Link:
https://www.unpac.me/results/7655d023-1878-4e9c-a22e-ccd3a92b4cc4/
SH256 hash:
e33254e2ad4d279914a29450f98d1750a9f513fc8ddb853e0dd8346b805faa43
MD5 hash:
b597cce7bfc65e56fa69ebb7f413a33f
SHA1 hash:
7ee40df5ac783432e7c9f7be4f7ed1f286345d58
Link:
https://www.unpac.me/results/7655d023-1878-4e9c-a22e-ccd3a92b4cc4/
SH256 hash:
4a5870c60e9e1025b9add3943b7e0645d32eff7c21745f10c2ba5b4114565968
MD5 hash:
ed1c320ee498a6f103a4e65318d831e0
SHA1 hash:
40853ed33b7db4c7b03a536d3e3ad8a5b8263de0
Link:
https://www.unpac.me/results/7655d023-1878-4e9c-a22e-ccd3a92b4cc4/
SH256 hash:
8ea12aaf22a78e896665fd465e412646a84637a80eb4efd8b0ff632628bcd48f
MD5 hash:
9502320bd5381b5beb52bea575c5bc62
SHA1 hash:
2ef4dea1ffc0f624447deb0f31b85487c7abe4ba
Link:
https://www.unpac.me/results/7655d023-1878-4e9c-a22e-ccd3a92b4cc4/
SH256 hash:
231af4f9626622427ed4df07e6ed351172b9a3417ee26235ba05ec14ed7dc7e4
MD5 hash:
dde1f0c6b610e96e966d5fd5e0af8bca
SHA1 hash:
068f5c7d8da4921da77461002858963abc258f9d
Link:
https://www.unpac.me/results/7655d023-1878-4e9c-a22e-ccd3a92b4cc4/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/231af4f96266/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/231af4f9626622427ed4df07e6ed351172b9a3417ee26235ba05ec14ed7dc7e4

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: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

Executable exe 231af4f9626622427ed4df07e6ed351172b9a3417ee26235ba05ec14ed7dc7e4

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/242421/

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