MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be91eb148b36528adb2b49362c50a099cf0cfbf5f1d5bd18ce88751b3c779ae6. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: be91eb148b36528adb2b49362c50a099cf0cfbf5f1d5bd18ce88751b3c779ae6
SHA3-384 hash: e149de5d707d874dc74ad08adeec1bf25f4aef6d2f57df57b8c51b3b71269e8a57a21da9ed479d5bc8e0a7ecf41eeff3
SHA1 hash: 314d358046143e4d4dd88e3d7dc0db9e9b999947
MD5 hash: c9fa29e6e303450e5c9890518d27ebfa
humanhash: quebec-skylark-four-carbon
File name:Doc-CS3.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:561'664 bytes
First seen:2021-10-13 06:12:25 UTC
Last seen:2021-10-13 06:54:26 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:z1P4rnksslb9WqPs08Eeo+3zKUO/+8c7eRgSB:xPAraIqknEmD8/+81tB
Threatray 11'629 similar samples on MalwareBazaar
TLSH T12AC412A1A2E46B03FA32BFB469557D505770AE263421F74D0C92B0EF97A3B508371B1B
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Doc-CS3.exe
Verdict:
Malicious activity
Analysis date:
2021-10-13 06:19:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/46f3c0ad-bb17-4810-b202-78f973df3dc4

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/197081/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader43.42926.6011.3376.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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/616678f0fd35fe780c3c85d7/reports/cf9fad13-71de-4cc9-a58d-67d87812f2bc/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/0551b777-562b-4534-b831-97b3893ad96c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/869328
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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)
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)
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: 501752 Sample: Doc-CS3.exe Startdate: 13/10/2021 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Multi AV Scanner detection for dropped file 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 5 other signatures 2->35 7 Doc-CS3.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\aUOJHYNvJTDQFG.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmpD400.tmp, XML 7->21 dropped 23 C:\Users\user\AppData\...\Doc-CS3.exe.log, ASCII 7->23 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->39 41 Uses schtasks.exe or at.exe to add and modify task schedules 7->41 43 Injects a PE file into a foreign processes 7->43 11 Doc-CS3.exe 4 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 mail.alraedsecurity.com 192.185.105.182, 49806, 587 UNIFIEDLAYER-AS-1US United States 11->25 27 x1.i.lencr.org 11->27 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/be91eb148b36528adb2b49362c50a099cf0cfbf5f1d5bd18ce88751b3c779ae6/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-10-12 22:42:32 UTC
AV detection:
10 of 45 (22.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x2i6wfelgzjivwzlje3cyufathhqz67v6hk32ggorb2rwpdxtlta._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0aeac649d2d859f9f98e5545017913ed1e3270ba4d46602c2cac3adbe03dea40
AgentTesla
274be467551e7b14ef4b24d2a54113c272dba07bd6fec799739077971ed4ffe7
AgentTesla
3fe0275748a53c76feb7146d57815397da2d3479562b21932d7f68b6cfe10dbd
AgentTesla
667f97630c53a52e392bd846d0d40fe580e40e1ea6d8afb76f52617dcd1cc036
AgentTesla
79bdfcaa7cd98b6dceac3f4c390a4eef5d8bedb1d24dcb0849c9e93c00f1ee69
AgentTesla
a6beb68fd213bbdcb92da099d86ac4f913cba2c024dd8ea983d35f8f85bf5f53
AgentTesla
af878a79ddc96eb0a8db75ee921c83933f7ff30191c219d5e90a965b0918f137
AgentTesla
e9c6cb1d50be82089755925b1d7c58eb6c198c0ff7f9ff6b1915a72772a2062f
AgentTesla
fe68d5e9330b1320caa01293c6abdc783d553571f3f0b9cc2a43685cc1f2f66b
AgentTesla
+ 11'619 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211013-gyrb2adfd3/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
1f6dc8699240501bd98de0ffe40fc3e6408325af57b29bfb05b5d3e85ddfc315
MD5 hash:
0ba633c0b99cd6b0e9a2c0e17fde108a
SHA1 hash:
5a051f8055bf726e32d2f9d29f1cc1b8820e1374
Link:
https://www.unpac.me/results/e8de23c3-3cf6-4bcf-8ff8-b4a7572eb8e3/
SH256 hash:
34b6b3d04c4eee6659823cf03566ec8a45f815c9d53000e5af2bd7bebfdb8abf
MD5 hash:
5c0fdd3dc8503542279d2b8d89c3fd20
SHA1 hash:
5834967b33f9a764576a23fb656157aa321c7d88
Link:
https://www.unpac.me/results/e8de23c3-3cf6-4bcf-8ff8-b4a7572eb8e3/
SH256 hash:
eda4d687b865aed0078ab87078de7d9722888b2d2af71c6fc0dcdc986ffb7567
MD5 hash:
12cf5402be16590c300b442a66e9ebc1
SHA1 hash:
0ea28394d301ca1ce840f039d2da62a5ce6d9334
Link:
https://www.unpac.me/results/e8de23c3-3cf6-4bcf-8ff8-b4a7572eb8e3/
SH256 hash:
be91eb148b36528adb2b49362c50a099cf0cfbf5f1d5bd18ce88751b3c779ae6
MD5 hash:
c9fa29e6e303450e5c9890518d27ebfa
SHA1 hash:
314d358046143e4d4dd88e3d7dc0db9e9b999947
Link:
https://www.unpac.me/results/e8de23c3-3cf6-4bcf-8ff8-b4a7572eb8e3/
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/be91eb148b36/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/be91eb148b36528adb2b49362c50a099cf0cfbf5f1d5bd18ce88751b3c779ae6

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 be91eb148b36528adb2b49362c50a099cf0cfbf5f1d5bd18ce88751b3c779ae6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/197081/

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