MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 98ab07d2d8ef625b7e18ce21bc66c0a2ebdb9ee4ccac0982f70682d73fc3f124. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 98ab07d2d8ef625b7e18ce21bc66c0a2ebdb9ee4ccac0982f70682d73fc3f124
SHA3-384 hash: 44d5ec3a4ec9c792c9cb4b9a9d8c8c331a360001172f16d436569a948c38d1b4ebac44176b3fa37e6041eb91a44aad7a
SHA1 hash: 9e8badc614c1f9eb8bb271de75852f71cada98d2
MD5 hash: 3e7752abf131554c1aafa6019e53df88
humanhash: uranus-delaware-october-mississippi
File name:Aviso de factura.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:393'728 bytes
First seen:2020-11-18 12:33:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d1ac88a064c1f440665011c239216056 (3 x AgentTesla, 1 x Formbook, 1 x AsyncRAT)
ssdeep 6144:BgTOGr+xLbNIk07R9E7d3t4/Pt3yyl9WPYDEYtti57r+mcVWrd67WcZ:BgTO9xXNIkESJ3sF3yyL1DECOPmWrsy2
Threatray 2 similar samples on MalwareBazaar
TLSH 6E84F1303190C073D5A7293589F9CBB66BBDB8321B6565C77BC41BBD0F252E2A73124A
Reporter abuse_ch
Tags:AgentTesla ESP exe geo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: delivery.mailspamprotection.com
Sending IP: 146.66.121.62
From: Hunglo Global Trading Company LLC <production@estellanatura.com>
Subject: Re: Factura FNR Comercialización
Attachment: Aviso de factura.rar (contains "Aviso de factura.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
PUA.Win.Downloader.Firseria-6804617-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
Sending a UDP request
Unauthorized injection to a system process
Result
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/541143
Signature
.NET source code contains very large array initializations
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Machine Learning detection for sample
Maps a DLL or memory area into another process
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: MSBuild connects to smtp port
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/98ab07d2d8ef625b7e18ce21bc66c0a2ebdb9ee4ccac0982f70682d73fc3f124/
Threat name:
Win32.Infostealer.Stelega
Create hunting rule
Status:
Malicious
First seen:
2020-11-18 12:34:07 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tcvqpuwy55rfw7qyzyq3yzwaulv5xhxezswataxxa2bnop6d6esa._file
Verdict:
suspicious
Similar samples:
3b02adbda158a35f586aa1f17780dc8d5cd0404c864a16b8c6b5a8f2b02363f9
AgentTesla
f15f56060c67b8a9fb384eb33797c08aa5daf594ae5061672dded02be6ec2b3b
AgentTesla
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/201118-7ghmcam9rx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
0f5b38c8b8bb0b144cf554e343534d9566f87a7a7dd5e790768dc2ea398d99ad
MD5 hash:
2fbb360c77064799fc2316c7ab01a39f
SHA1 hash:
93c22c343d8fd1d7fd14cbd91f60d30473426408
Link:
https://www.unpac.me/results/fc76276b-d0dc-46cb-8803-49484607e88a/
SH256 hash:
98ab07d2d8ef625b7e18ce21bc66c0a2ebdb9ee4ccac0982f70682d73fc3f124
MD5 hash:
3e7752abf131554c1aafa6019e53df88
SHA1 hash:
9e8badc614c1f9eb8bb271de75852f71cada98d2
Link:
https://www.unpac.me/results/fc76276b-d0dc-46cb-8803-49484607e88a/
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
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.

Malspam

AgentTesla

rar ca83ae1608c56e81aed4f9a54c77e4ea5bff19815197333554dbc3758579861a

AgentTesla

Executable exe 98ab07d2d8ef625b7e18ce21bc66c0a2ebdb9ee4ccac0982f70682d73fc3f124

(this sample)

  
Dropped by
MD5 b1242d42f91042b85eff1cf77c45914f
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 ca83ae1608c56e81aed4f9a54c77e4ea5bff19815197333554dbc3758579861a

Comments