MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a37117c0bc0130e1a1b613744f5e58eb66c4426cf5687cc88c0ed2e81336a835. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
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SHA256 hash: a37117c0bc0130e1a1b613744f5e58eb66c4426cf5687cc88c0ed2e81336a835
SHA3-384 hash: 3408f096422510288ad1c6b8d351d44a46e25f55ab5adfa36f66929fd6b6a3df6e8afb6173b6be2e363ca72130450130
SHA1 hash: 65ef6328cb3fa7d0c53af3c1031099a84e239c70
MD5 hash: 77c7e6b8072c071c460667c8a1a90982
humanhash: jersey-spring-orange-ack
File name:77c7e6b8072c071c460667c8a1a90982.exe
Download: download sample
Signature AgentTesla
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File size:516'608 bytes
First seen:2022-04-05 18:22:29 UTC
Last seen:2022-04-05 18:38:51 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:k901ZNAowqNyFC0wiJnkLAFDENaS8KT5dTdqiCEn7:kSPyvqwFvwGTEsrI57qiCEn7
Threatray 15'534 similar samples on MalwareBazaar
TLSH T195B423A87BBE5679D9FB567802935B2833301397AD03C70E4EBC64B93A163C185652F3
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
302
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/261083/
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.100.8224.866.UNOFFICIAL
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Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/624c8914db9ca5cf8426ba30/reports/15611b21-6d68-4a76-b24f-6cc4c5eb7a41/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d32360f7-e037-4bbe-a8f3-47ee4d7251ae
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/971050
Signature
.NET source code contains potential unpacker
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
Malicious sample detected (through community Yara rule)
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)
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 the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 603533 Sample: rxyR8e6G0W.exe Startdate: 05/04/2022 Architecture: WINDOWS Score: 100 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected AgentTesla 2->53 55 6 other signatures 2->55 6 rxyR8e6G0W.exe 3 2->6         started        10 OQbasAU.exe 3 2->10         started        12 OQbasAU.exe 2 2->12         started        process3 file4 23 C:\Users\user\AppData\...\rxyR8e6G0W.exe.log, ASCII 6->23 dropped 57 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->57 59 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->59 61 Injects a PE file into a foreign processes 6->61 14 rxyR8e6G0W.exe 17 5 6->14         started        63 Machine Learning detection for dropped file 10->63 19 OQbasAU.exe 14 2 10->19         started        21 OQbasAU.exe 2 12->21         started        signatures5 process6 dnsIp7 29 api.telegram.org 14->29 31 api.telegram.org 149.154.167.220, 443, 49769, 49778 TELEGRAMRU United Kingdom 14->31 25 C:\Users\user\AppData\Roaming\...\OQbasAU.exe, PE32 14->25 dropped 27 C:\Users\user\...\OQbasAU.exe:Zone.Identifier, ASCII 14->27 dropped 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->35 37 Tries to steal Mail credentials (via file / registry access) 14->37 39 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->39 33 192.168.2.1 unknown unknown 21->33 41 Tries to harvest and steal ftp login credentials 21->41 43 Tries to harvest and steal browser information (history, passwords, etc) 21->43 45 Installs a global keyboard hook 21->45 file8 47 Uses the Telegram API (likely for C&C communication) 29->47 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a37117c0bc0130e1a1b613744f5e58eb66c4426cf5687cc88c0ed2e81336a835/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-04-05 18:23:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1f159a90cc9a8c72b6f966bb9faf9c7efedcccb3550345b63c9ecbe844d64403
AgentTesla
49a9d39a546af011f10b52efa9f9fa003524a7585fb08f3101da8d090e6b93e6
AgentTesla
94f91d2d02707611f3944b2de5358c95885b76f1a21815153995c46728703285
AgentTesla
a0732064020bdb099cd5948a0caefadc8491e45bc6dcc98c57566033f520f09b
AgentTesla
a2136b933c4487133913d9138887fdca955bb78f9071842a958949112af5e67b
AgentTesla
ad42e638f96ae99772ba92d8cd8a8f2ba158e23c57e446049f5a784d60469306
AgentTesla
c1191fcbd8bdee63912d47d867c4cbb066568194f53df3969b3aea6dfd3734a5
AgentTesla
+ 15'524 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220405-w1fqmsefcp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
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
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5197556699:AAF9N0honCfMcV2m7wZEFqhuvIyyU_G7uA4/sendDocument
Unpacked files
SH256 hash:
ae960a2ec8369914d5cb1e2bff29fe4d729e11355ff3ce2ba0c0cf4d0af619e5
MD5 hash:
cfb0baad24a8bd2825df976372521a33
SHA1 hash:
f5aa46a38b5349367120f30151465f8854c007ea
Link:
https://www.unpac.me/results/74d2ab35-0cb3-4e30-8a00-23cc0703e3f2/
SH256 hash:
a7e378f2b3c50b8391551ad816674626f0795e0fcb4db860c3535884f3682deb
MD5 hash:
b0b7f114c5ec59b2a5f95a5806bfc952
SHA1 hash:
b360b669fc7b3c0943977aceede9f72f7cb700e3
Link:
https://www.unpac.me/results/74d2ab35-0cb3-4e30-8a00-23cc0703e3f2/
SH256 hash:
e616728759bb6e11d48c1e4d45f6d591c6fa33b8fadc1a84b8587e8ea956dc94
MD5 hash:
d96a4302db160a5d2bdc6198e469afca
SHA1 hash:
6744fcce41b0f122a78458e84dbc85c414202469
Link:
https://www.unpac.me/results/74d2ab35-0cb3-4e30-8a00-23cc0703e3f2/
SH256 hash:
35ce29348058d5260e22768ebd4e22f935fb81f18cad1494b8fab7d387eae6aa
MD5 hash:
9bede9f6ca924207ab16ad034bb3bb0a
SHA1 hash:
4e7ae472aced56918aeca17300a77614c8e5fa3b
Link:
https://www.unpac.me/results/74d2ab35-0cb3-4e30-8a00-23cc0703e3f2/
SH256 hash:
a37117c0bc0130e1a1b613744f5e58eb66c4426cf5687cc88c0ed2e81336a835
MD5 hash:
77c7e6b8072c071c460667c8a1a90982
SHA1 hash:
65ef6328cb3fa7d0c53af3c1031099a84e239c70
Link:
https://www.unpac.me/results/74d2ab35-0cb3-4e30-8a00-23cc0703e3f2/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a37117c0bc01/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/a37117c0bc0130e1a1b613744f5e58eb66c4426cf5687cc88c0ed2e81336a835

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
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

AgentTesla

Executable exe a37117c0bc0130e1a1b613744f5e58eb66c4426cf5687cc88c0ed2e81336a835

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2122000/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/261083/

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