MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b20ff2d671025d4bdb33514bf2ff3cc32382ee6aeccf4b1d9c4a120bc4a73c3a. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b20ff2d671025d4bdb33514bf2ff3cc32382ee6aeccf4b1d9c4a120bc4a73c3a
SHA3-384 hash: 03561f515afb115f70115b658562fbf69f4fd772ff7bb0e4c26996a14fec5e2fda65233cb8a5446e52d6b3a0e8de5696
SHA1 hash: 7abd7802bd7ad1efc34ec32ca4b159aeea752b04
MD5 hash: ffb4d30088a98fe41feef5a6be841987
humanhash: yankee-ack-friend-oxygen
File name:ffb4d30088a98fe41feef5a6be841987.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'329'664 bytes
First seen:2021-12-09 14:10:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:qIKjy/SYCpTQEtX5UL9idTdMle65ugTCLaDasWibIUUmY8G5+EWbGG:4jASbH5UZidoe4PCe1WsRnnbGG
TLSH T1D45522291DF5916BD62D97F182D3C0708BB9F0132E52F3FA5DC101EE763898A9943A63
File icon (PE):PE icon
dhash icon b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
smtp.mail.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
162
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ffb4d30088a98fe41feef5a6be841987.exe
Verdict:
Malicious activity
Analysis date:
2021-12-09 14:13:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a43feaaa-0558-4749-95e7-12b0a4d6db0a

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/212890/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b20e78fa72c81b5b139336/reports/25368adc-baa9-42cf-bc60-17ce821379eb/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6b4ec1d8-cfc8-438c-81bf-931f4e7f2bee
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/904678
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 537157 Sample: 2TYl8MpGgZ.exe Startdate: 09/12/2021 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected AgentTesla 2->43 45 4 other signatures 2->45 6 2TYl8MpGgZ.exe 3 2->6         started        10 szRba.exe 3 2->10         started        12 szRba.exe 2 2->12         started        process3 file4 23 C:\Users\user\AppData\...\2TYl8MpGgZ.exe.log, ASCII 6->23 dropped 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 14 2TYl8MpGgZ.exe 2 5 6->14         started        19 2TYl8MpGgZ.exe 6->19         started        51 Multi AV Scanner detection for dropped file 10->51 53 Injects a PE file into a foreign processes 10->53 21 szRba.exe 2 10->21         started        signatures5 process6 dnsIp7 29 smtp.mail.com 74.208.5.15, 49692, 587 ONEANDONE-ASBrauerstrasse48DE United States 14->29 25 C:\Users\user\AppData\Roaming\...\szRba.exe, PE32 14->25 dropped 27 C:\Users\user\...\szRba.exe:Zone.Identifier, ASCII 14->27 dropped 31 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->31 33 Tries to steal Mail credentials (via file / registry access) 14->33 35 Tries to harvest and steal ftp login credentials 14->35 37 2 other signatures 14->37 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b20ff2d671025d4bdb33514bf2ff3cc32382ee6aeccf4b1d9c4a120bc4a73c3a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-09 14:11:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wih7fvtrajouxwztkff7f7z4ymryf3tk5thuwhm4jijaxrfhhq5a._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/211209-rg9r6adeel/
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
8cc7fa56e027f3b9144a631b3b3453bd439c0061d18087b870838bfd2d9b7d54
MD5 hash:
cee4dde0db838ef0b2c67f2731a281df
SHA1 hash:
ffc998b1b5d422dbd4cf3272c9385731ea39dd6f
Link:
https://www.unpac.me/results/2575bc75-55d3-47bd-ad46-46ecf1d9cc8b/
SH256 hash:
6616655d4e046bdf2946d0497a8ba89d5607f05e0ec71a9d364a5bcce8acb832
MD5 hash:
9160f166ba8dd041d600ac35443c2798
SHA1 hash:
eeb9772d29b75337bd119ac387037f047c85da7e
Link:
https://www.unpac.me/results/2575bc75-55d3-47bd-ad46-46ecf1d9cc8b/
SH256 hash:
9cd82dba6c55d901ac7d7007b7a04a30146ad7c297400d44f9d96b90c5ca25d4
MD5 hash:
d9477c36da677507cd33c6eef325d694
SHA1 hash:
330dc88b5041ca9edf57542f5a30c37eef6f11b1
Link:
https://www.unpac.me/results/2575bc75-55d3-47bd-ad46-46ecf1d9cc8b/
SH256 hash:
b20ff2d671025d4bdb33514bf2ff3cc32382ee6aeccf4b1d9c4a120bc4a73c3a
MD5 hash:
ffb4d30088a98fe41feef5a6be841987
SHA1 hash:
7abd7802bd7ad1efc34ec32ca4b159aeea752b04
Link:
https://www.unpac.me/results/2575bc75-55d3-47bd-ad46-46ecf1d9cc8b/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b20ff2d67102/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b20ff2d671025d4bdb33514bf2ff3cc32382ee6aeccf4b1d9c4a120bc4a73c3a

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Web download

AgentTesla

Executable exe b20ff2d671025d4bdb33514bf2ff3cc32382ee6aeccf4b1d9c4a120bc4a73c3a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1866438/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/212890/

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