MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 266ff1cf087f8922516f03e2e5853c28efdcbc835b64dc23e7c355a3cc0dc173. 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 9 File information Comments

SHA256 hash: 266ff1cf087f8922516f03e2e5853c28efdcbc835b64dc23e7c355a3cc0dc173
SHA3-384 hash: b196cf59d53e8648e915cfc754ab8e88bd08cd7bc2628610fedc1eaf7fc573d60ccd3a0b8517f88c9062470eb8a202ae
SHA1 hash: 97a6a09fddcfece7b48a3ed9c6de281eacfa04cc
MD5 hash: a78a53618d1c2400a873897283455388
humanhash: papa-papa-social-october
File name:Invoice no SS21-22185.exe
Download: download sample
Signature AgentTesla
File size:1'431'040 bytes
First seen:2021-08-02 10:57:37 UTC
Last seen:2021-08-02 12:16:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'472 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:allVUZVoRff5fx8DgMfx8DgqMNIwE85G98FifGgapQaMJNSscZCvLL:J2H558DgM58Dgq4m8T3gapQaMJNeZCT
Threatray 7'917 similar samples on MalwareBazaar
TLSH T16365D0BE7681DD76C2690675D64AC880027C9C005163BBEFB976326A37E077B5E04CFA
dhash icon b271e8e4d4ccf070 (22 x AgentTesla, 14 x Formbook, 11 x SnakeKeylogger)
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence


File Origin
# of uploads :
2
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice no SS21-22185.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-02 11:00:15 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
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
Machine Learning detection for sample
Modifies the hosts 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)
Sigma detected: Suspicious Process Start Without DLL
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2021-08-02 10:58:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
137
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
5414abf4a74112d2e81a32ff19efd52b4f06351baa594a5f8f6d9230ceadf166
MD5 hash:
804473dc63514bb1d76eade1a56129d1
SHA1 hash:
f994035a2a18250f33101c231f8c1d132fbc478c
SH256 hash:
59847b7ddf871f152542429339a8ea9daa67db5591b39cc2ead29b62c2951e20
MD5 hash:
df792f1e085e6d43cb14bf94cdc63179
SHA1 hash:
b738f39da395a36cb74a812a97c468b068c3f566
SH256 hash:
cfef97ff706312dff4edd998aeee22f1283221631ebb0cc954bebbb701c1465c
MD5 hash:
a0f625a3d3348903f3c902f588c0e4f5
SHA1 hash:
20d1f0b74abe6f500e8c21119f55281926210ac0
SH256 hash:
266ff1cf087f8922516f03e2e5853c28efdcbc835b64dc23e7c355a3cc0dc173
MD5 hash:
a78a53618d1c2400a873897283455388
SHA1 hash:
97a6a09fddcfece7b48a3ed9c6de281eacfa04cc
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:quakbot_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
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 266ff1cf087f8922516f03e2e5853c28efdcbc835b64dc23e7c355a3cc0dc173

(this sample)

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