MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6621e6fa87f923bb57c6d71912366ce6043ae4e43bab3c7644499e8ae883544. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6621e6fa87f923bb57c6d71912366ce6043ae4e43bab3c7644499e8ae883544
SHA3-384 hash: ab76078195b1dddae12ff76a8cc5d36e8c1198d952c103a3ac147bb2b8dff25adbf460b2bd107a25b96f27c21ebfa7aa
SHA1 hash: e1ccf5297b66870f6b716d76673fda28b4deeb2d
MD5 hash: 3b8ada424b4b8e13c5f137a7a437ff26
humanhash: tennessee-south-foxtrot-apart
File name:Account Details.Pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:879'104 bytes
First seen:2021-05-20 13:46:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:DwCjrhy3QCG2qzchJ0NKyJpXpbwVY9P6nnjqKoe:Bz0J0NKyLuVY96jqKoe
Threatray 5 similar samples on MalwareBazaar
TLSH 4C15D0573644C988CE7E07FAA217415063F4D87AC605E70E6FC832B7AEE3762492275B
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
1
# of downloads :
95
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/159658/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.747-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/786250
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Suspicious Double Extension
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
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: 418647 Sample: Account Details.Pdf.exe Startdate: 20/05/2021 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->33 35 Found malware configuration 2->35 37 Multi AV Scanner detection for dropped file 2->37 39 14 other signatures 2->39 7 Account Details.Pdf.exe 7 2->7         started        process3 file4 27 C:\Users\user\AppData\...\KHkneeaDiuq.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmpB316.tmp, XML 7->29 dropped 31 C:\Users\user\...\Account Details.Pdf.exe.log, ASCII 7->31 dropped 41 Adds a directory exclusion to Windows Defender 7->41 43 Injects a PE file into a foreign processes 7->43 11 powershell.exe 23 7->11         started        13 powershell.exe 26 7->13         started        15 schtasks.exe 7->15         started        17 3 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 conhost.exe 13->21         started        23 conhost.exe 15->23         started        25 conhost.exe 17->25         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b6621e6fa87f923bb57c6d71912366ce6043ae4e43bab3c7644499e8ae883544/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-20 07:02:57 UTC
AV detection:
23 of 46 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzrb435ip6jdxnl4nvyzci3gzzqehlsoio5lhr3eism6rluigvca._file
Verdict:
unknown
Similar samples:
3f5a7effc340c773a1ef95a0c709a9e92e3daccd1e584ba3e8c1270fdd54dc7c
AgentTesla
6087c3fc050366e4c7f5b6118679ca85e5a1ab205e994919f41e035a386f5270
AgentTesla
9d3ab8d52c79c14a132e08fd1c15d7b0078fef6bbf2bfa2cf5a2dca07a34286e
AgentTesla
a70c61eddfae506d2e24ab77c133ca0f60ed4d4b03077b3d4218b978faca6547
AgentTesla
dcfdc0825f9965ecd51cdcae8eabcdca7aa1aea7625d3918d8bdc529b87114b1
AgentTesla
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/210520-jt3ctrpw9e/
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/b6621e6fa87f923bb57c6d71912366ce6043ae4e43bab3c7644499e8ae883544

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 b6621e6fa87f923bb57c6d71912366ce6043ae4e43bab3c7644499e8ae883544

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/159658/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-20 13:59:49 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection