MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31ff4ddf4da524102eadae3a947d906669829b433df210ce5a2a56eb920a0c99. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31ff4ddf4da524102eadae3a947d906669829b433df210ce5a2a56eb920a0c99
SHA3-384 hash: 45d6a4637a1f5723232a19e2c15edf44c84dcc516840532fb5360e17bfe9a2fdbe234567e1636e5f36aafa5a639a92c4
SHA1 hash: fa8377d3c008735c2eeb2be683883882dee8c7cb
MD5 hash: f871be84962d15ae582c31d102027200
humanhash: magnesium-arizona-carpet-saturn
File name:payment advise.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:857'600 bytes
First seen:2021-12-06 03:40:31 UTC
Last seen:2021-12-07 08:44:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'795 x AgentTesla, 19'693 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 12288:5ItyKntK4qZfpSBDZvwwew3LEbZ27y9YebcDse2AngutINLsiuxN6tTM:aPLqZeDZILw7EbZSUtuswn/tIBsiNTM
TLSH T1A5059F6AEE5E3B40E39C863AC0D1A8B842B58C619611D93FADD431EE45F1ECC116BDC7
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
155
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
payment advise.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-06 03:42:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e32d2783-9983-45ea-a5f5-910791b6ff8f

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/211594/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Launching a process
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61ad8650fa72c81b5b0db89b/reports/26fc6073-4eb4-450a-b883-e711feb7288e/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0ff84fdb-1fda-4a93-a432-c7d5cd99b1dd
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/901929
Signature
.NET source code contains very large array initializations
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
Injects a PE file into a foreign processes
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: Conti Backup Database
Sigma detected: Disable or Delete Windows Eventlog
Sigma detected: PowerShell SAM Copy
Sigma detected: Suspicious PowerShell Invocations - Generic
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 / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/31ff4ddf4da524102eadae3a947d906669829b433df210ce5a2a56eb920a0c99/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-06 00:55:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gh7u3x2nuusbalvnvy5ji7mqmzuyfg2dhxzbbts2fjloxeqkbsmq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211206-d8r5jadcdm/
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
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/sendDocument
Unpacked files
SH256 hash:
48cae37c0f109770d8f8bdfe2c2ed6ac84de644793ae88e86fa35938a5c9fa0a
MD5 hash:
a85898cf0f4d76d4103b186cf4f44b15
SHA1 hash:
849827795f392a82317919e553adc2086d67f99e
Link:
https://www.unpac.me/results/1a4634c4-3ff8-4ed5-b43c-7a2dcf537cbd/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/1a4634c4-3ff8-4ed5-b43c-7a2dcf537cbd/
SH256 hash:
92bd50cbc41c6518fb880dcf437c12ba319fcac6ed009c1403636d7727aefe10
MD5 hash:
7fc713d485930d99c99e22d0e761a128
SHA1 hash:
2458c6111874a997abbafe36bc79f3b824b978a7
Link:
https://www.unpac.me/results/1a4634c4-3ff8-4ed5-b43c-7a2dcf537cbd/
SH256 hash:
31ff4ddf4da524102eadae3a947d906669829b433df210ce5a2a56eb920a0c99
MD5 hash:
f871be84962d15ae582c31d102027200
SHA1 hash:
fa8377d3c008735c2eeb2be683883882dee8c7cb
Link:
https://www.unpac.me/results/1a4634c4-3ff8-4ed5-b43c-7a2dcf537cbd/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/31ff4ddf4da5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/31ff4ddf4da524102eadae3a947d906669829b433df210ce5a2a56eb920a0c99

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: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 31ff4ddf4da524102eadae3a947d906669829b433df210ce5a2a56eb920a0c99

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/211594/

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