MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813
SHA3-384 hash: cfaa7fa2b188dd7a4c70a95a6645d04da5c7512b97e93839a92bf62c52932fa3663a9d8eeb62c2ce8249113074bc0c7d
SHA1 hash: 4ba7608ce9271346924b730704fe8e9fc14400ba
MD5 hash: 69a175556a09a3597897c18e8683782c
humanhash: kitten-sweet-equal-early
File name:ISF FORM --- RT5301 x.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'049'088 bytes
First seen:2023-02-20 08:45:04 UTC
Last seen:2023-02-27 09:03:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:oL/s3NpK0c7OT4fa3yI9UcZ4TiuwMnmWy7IL:c/sdYyTn3y0UcZ4Tiu
Threatray 2'514 similar samples on MalwareBazaar
TLSH T1C925AD9977B46473F4CB01FE5839278D2E3166137609E22FA777BB81A2319FB7285201
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 00704cd4d4cc6000 (6 x AgentTesla, 3 x SnakeKeylogger, 2 x Loki)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
219
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
ISF FORM --- RT5301 x.exe
Verdict:
Malicious activity
Analysis date:
2023-02-20 08:59:59 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/16a0ff87-49f6-4b1f-b295-3045781d864b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/368355/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63f3334db53d126ad26343cb/reports/836ddc74-a7b8-41ee-a1da-1ba0e2efc849/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813
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/e66e653e-bbf7-42f4-bc73-91b3e1a6cba4
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1179025
Signature
Injects a PE file into a foreign processes
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 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)
Yara detected AgentTesla
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-02-20 08:46:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w6n3p6h672jygywk2eq4o5jubfbcv7jzasqhkpni5hpiwbvptajq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
097fa705dc9603a07d71bd19b2d0e664c03f0bc2cfcfc9f696d65d3e7fb4b771
AgentTesla
1038c10cdf14d50b7bf14e8d6b0c2eb9c8849837ff19ac03e79ad16ffc2c2143
AgentTesla
1932562dc1fc3dcea7da6d86ef26c12a34b0acce777807a5f0b4b5922950df05
AgentTesla
30e9a12678d0f48ab2e58c4c676d7bf56351025550275913bfaa491b0382be2a
AgentTesla
4b0e274d733c1292ace31c3b7436eb20989cc308ef92b902df2d9020280fce50
AgentTesla
abe9339cbaa7e85ee67e130dafa15f9e8d1bc7fc43fa8a980a9eec144db986f1
AgentTesla
c05b7b394c6fd0211f67dae500bd48d89b0ce2d16ff2088ca657b1fed475599d
AgentTesla
e8ad822315f8d6182aeb1f3be1196f62ba76beba56a8863e62597f451d90f922
AgentTesla
+ 2'504 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/230220-kpcztshg4z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
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
Unpacked files
SH256 hash:
dc94b217c655fc12a5c967fb7329eed34994dd479b765d1642ca297c19d69fd3
MD5 hash:
4cd4ed6114d875bb5a67aac90adfc38d
SHA1 hash:
f8bcb19f2956e43dc7583eb83115bee5ab84fc0b
Link:
https://www.unpac.me/results/0c744206-2527-48b2-8a37-93e06d30342f/
SH256 hash:
8be12fa49584c2fd1574457309e56e7979aac5d411770d5a0fc4395ebd40ed78
MD5 hash:
7b606498e79d89e8796f9b0d24800f42
SHA1 hash:
57554623b22159026ef17aa8bc9d8bb014a19485
Link:
https://www.unpac.me/results/0c744206-2527-48b2-8a37-93e06d30342f/
SH256 hash:
fb6d1cbcbf363b5bb0964f359a014b1d39712ce1626b479614a919786a326576
MD5 hash:
bb9fc7509e6f6d0b1e945269bd8abb04
SHA1 hash:
4f8a8a2135cd02cecc0d4de5e9e6dfb728ed37d6
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/0c744206-2527-48b2-8a37-93e06d30342f/
Parent samples :
097fa705dc9603a07d71bd19b2d0e664c03f0bc2cfcfc9f696d65d3e7fb4b771
b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813
19d89eb7dffdde1f430586fd0fbcb87e5e6b7bfc3ccb9ee1a80dfcf92c30c94b
SH256 hash:
8f0c7e3047346b8d6477ff6d4639fd6157602c7ebc840f3432b99263f1cb415c
MD5 hash:
e5b073b30db1b058298f5df032164e4d
SHA1 hash:
15d3ada4e7ac01b766615b9b66785e7e2ae9b0ca
Link:
https://www.unpac.me/results/0c744206-2527-48b2-8a37-93e06d30342f/
SH256 hash:
febd5aecda58f43ec76dc2c88af75afc01fb191a6a8f8848aad1a68e3b55b5f3
MD5 hash:
eae360bede736b1f8871d10383e14fe8
SHA1 hash:
0b46ba6c937ceb971a4b49bdbb24b1b56e840398
Link:
https://www.unpac.me/results/0c744206-2527-48b2-8a37-93e06d30342f/
SH256 hash:
b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813
MD5 hash:
69a175556a09a3597897c18e8683782c
SHA1 hash:
4ba7608ce9271346924b730704fe8e9fc14400ba
Link:
https://www.unpac.me/results/0c744206-2527-48b2-8a37-93e06d30342f/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b79bb7f8fefe/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813

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 b79bb7f8fefe938362cad121c7753409422afd3904a0753da8e9de8b06af9813

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/368355/

Comments