MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91006c58f26cf791bc0d2981879e1b3cb045d9013dc3a92a158ce8968bd61ff4. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91006c58f26cf791bc0d2981879e1b3cb045d9013dc3a92a158ce8968bd61ff4
SHA3-384 hash: 06ff9e1826c93ab71abac98d54e6c0f814cc78113da0733ce64f63dd3f84a2c4332be05142671f7a9e5dc818bdadfeb4
SHA1 hash: 6cac3b01e7e44d5bc3e58757e23cf6be74b289ec
MD5 hash: e2ac60eab0d036259f3ff95eb42b4865
humanhash: high-coffee-friend-fruit
File name:uyiKUu0lDlBldHd.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'064'448 bytes
First seen:2021-03-22 10:20:46 UTC
Last seen:2021-03-23 07:17:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:M74E+Rg68uAUy5DH2r4G0g9MQGMoj1S/fFnCH8t7lBRGrEV3MNdaJXF6:M3B5b2UQGMojaAH8t73iEV3/X
Threatray 3'379 similar samples on MalwareBazaar
TLSH 9A35290523D96B99E27A977594740016C7F8BC0DEB32EBADAD9470DA0A71B05CB37332
Reporter TeamDreier
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
3
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
uyiKUu0lDlBldHd.exe
Verdict:
Suspicious activity
Analysis date:
2021-03-22 10:22:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/734c1a47-7e7d-4cf0-85b3-a76cca7cbcfb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/125884/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.594.30958.4218.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
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.
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/647624
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Contains functionality to register a low level keyboard hook
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
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 access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 372777 Sample: uyiKUu0lDlBldHd.exe Startdate: 22/03/2021 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Yara detected AgentTesla 2->34 36 Yara detected AntiVM3 2->36 38 3 other signatures 2->38 6 uyiKUu0lDlBldHd.exe 3 2->6         started        9 NewApp.exe 3 2->9         started        11 NewApp.exe 2 2->11         started        process3 signatures4 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->42 44 Contains functionality to register a low level keyboard hook 6->44 13 uyiKUu0lDlBldHd.exe 2 5 6->13         started        18 uyiKUu0lDlBldHd.exe 6->18         started        46 Injects a PE file into a foreign processes 9->46 20 NewApp.exe 2 9->20         started        22 NewApp.exe 2 11->22         started        process5 dnsIp6 28 parkviewmanor.ca 199.167.131.53, 49745, 587 CDSICA Canada 13->28 30 mail.parkviewmanor.ca 13->30 24 C:\Users\user\AppData\Roaming\...24ewApp.exe, PE32 13->24 dropped 26 C:\Users\user\...26ewApp.exe:Zone.Identifier, ASCII 13->26 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->48 50 Tries to steal Mail credentials (via file access) 13->50 52 Tries to harvest and steal ftp login credentials 13->52 54 3 other signatures 13->54 file7 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91006c58f26cf791bc0d2981879e1b3cb045d9013dc3a92a158ce8968bd61ff4/
Threat name:
ByteCode-MSIL.Trojan.FormBookLoader
Create hunting rule
Status:
Malicious
First seen:
2021-03-22 10:15:15 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=seagywhsnt3zdpanfgayphq3hsyelwibhxb2skqvrtujnc6wd72a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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747ee0971e16540fa80072cdcc9e28a2f3fca2303303920c802219ea64c5bef2
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8078e1f99bc52197192e8e06ca039b8cac18c86c99bffa2ef70bdc3ca2bfa7ba
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9665ad0e77d42b45873a756fd12d19cc8433e6336b31e64658a861b0bf91ab80
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9aa6c787d3a660cebb293bc14105c5009859b92bc81e430df1389df113e9e896
AgentTesla
a1071d7b923717b0ef2dbc6fa2549510f1a4921273828037753c27a77b2abfbe
AgentTesla
+ 3'369 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210322-lye9sf7jt6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
c22b9993fd6abea236edcc1bf476bcd4a09015b4af09eedf660a43bf3d29a16f
MD5 hash:
1d1234ba19c430923b22f531bb19b369
SHA1 hash:
9868c1e97a3be16100a61b5ee1f7d2838b4782a8
Link:
https://www.unpac.me/results/7ab8bdfd-6d7b-4911-bca8-de74aa31bf15/
SH256 hash:
91006c58f26cf791bc0d2981879e1b3cb045d9013dc3a92a158ce8968bd61ff4
MD5 hash:
e2ac60eab0d036259f3ff95eb42b4865
SHA1 hash:
6cac3b01e7e44d5bc3e58757e23cf6be74b289ec
Link:
https://www.unpac.me/results/7ab8bdfd-6d7b-4911-bca8-de74aa31bf15/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.85
Link:
https://yomi.yoroi.company/submissions/91006c58f26cf791bc0d2981879e1b3cb045d9013dc3a92a158ce8968bd61ff4

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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.

Cape
Cape
https://www.capesandbox.com/analysis/125884/

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