MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a399844738311c40578a974578232bb9c46b488a3011baf4770a77744abf818d. 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: a399844738311c40578a974578232bb9c46b488a3011baf4770a77744abf818d
SHA3-384 hash: a983d7f69f7b2598142760047c91cce6afcca0cae34fbf24b181b6d90be96e0dd31cb5a9cc17235d97e24ca0272ab745
SHA1 hash: c76ad4b206947b2f29466d23e4f0fd97b5123830
MD5 hash: cd39dc91eea006a43fd3d30a259d7819
humanhash: paris-single-alanine-may
File name:MACHINE SPECIFICATIONS.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:976'384 bytes
First seen:2021-09-27 09:48:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'809 x AgentTesla, 19'728 x Formbook, 12'280 x SnakeKeylogger)
ssdeep 12288:KycRcIcGRiuoBQnxcsDA7Mg+Svq4DPp9KDwu43oO3yYeQEi2RA/2xYBSzz2DNBch:HgIF+dXMFnP7CbvjTXF+7fJYOWf
Threatray 10'278 similar samples on MalwareBazaar
TLSH T11425BF1662589F4EC1BFC7FEA052A2180339DE433E0EE2459D9630E55E76F770A468CB
File icon (PE):PE icon
dhash icon f0f0f2b2e834b498 (29 x AgentTesla, 12 x AveMariaRAT, 8 x RedLineStealer)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MACHINE SPECIFICATIONS.exe
Verdict:
Malicious activity
Analysis date:
2021-09-27 09:50:30 UTC
Tags:
keylogger stealer agenttesla trojan rat
Link:
https://app.any.run/tasks/6b22045b-1e2e-4a96-9f6d-470d2978b621

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/192023/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048.32015.940.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/219b949f-aaca-4a2a-845f-8070a1b1d3f0
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858812
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
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)
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
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 491239 Sample: MACHINE SPECIFICATIONS.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected AgentTesla 2->41 43 7 other signatures 2->43 6 MACHINE SPECIFICATIONS.exe 3 2->6         started        9 newapp.exe 3 2->9         started        12 newapp.exe 2 2->12         started        process3 file4 21 C:\Users\...\MACHINE SPECIFICATIONS.exe.log, ASCII 6->21 dropped 14 MACHINE SPECIFICATIONS.exe 17 5 6->14         started        45 Multi AV Scanner detection for dropped file 9->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->49 19 newapp.exe 2 9->19         started        51 Injects a PE file into a foreign processes 12->51 signatures5 process6 dnsIp7 27 ftp.northsrockusa.com 67.220.183.18, 21, 49690, 49691 24SHELLSUS United States 14->27 23 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 14->23 dropped 25 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 14->25 dropped 29 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->29 31 Tries to steal Mail credentials (via file access) 14->31 33 Tries to harvest and steal ftp login credentials 14->33 35 3 other signatures 14->35 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a399844738311c40578a974578232bb9c46b488a3011baf4770a77744abf818d/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-09-27 04:30:54 UTC
AV detection:
5 of 45 (11.11%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uomyirzygeoeav4ks5cxqizlxhcgwsekgai3v5dxbj3xisv7qggq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3529f437801eed53684a28376fa14332cf44a3b8396e8473bccdb92bf2fedb25
AgentTesla
4994562a8195097940cac88cff7737d8d990189acfdc2e1bc2f0133428304593
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8642bef0da90b39eff7e2f28570d28aa2a9aaabcd181c9f64bcfbdd331a606f1
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8c63a7665a27d47e20bd74c4aaba5cf4a76d981bfd52820f935efd097dcfda3d
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8ef4a31bc2a6eacd381e90d8873c55da95a1ed26ec3240d38bfec7b0a25a6e6f
AgentTesla
9ee852c4dcad25ccc76de768f756f63c0c49fa41eea3c5e9a01b31e8741dadfa
AgentTesla
ad28a444141c8894fc961bb6a358c29bc063e6e1f140526a1cbc973f5966db79
AgentTesla
b26bfa277644c0c5eb8fa1a8bc4734131ab15100d81b2d5a1dc9aaee1fd2a23a
AgentTesla
db7c19e4dfdcce7817b7a6608b3d800668ec0ac950962e3a01f6159b4cf4a9d9
AgentTesla
e257d47b4824f3ec42b8c554f85cde0da89c359fecedc38be112da8724806576
AgentTesla
+ 10'268 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210927-ltcejagcgn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
7e028c3077f4599c9d4b87edf3b24931915c27df60ae5797ba0f077f53b0ff4b
MD5 hash:
88e448c9dedcc12ff1e5a7c5f85d7a8a
SHA1 hash:
e78cc9eb1ddaac5f60647cae84d1fd0a53d32f6d
Link:
https://www.unpac.me/results/847eb80b-7d21-45a7-88b8-e760d4322c5a/
SH256 hash:
d99e4e771edf77ec90f9ff131547f4882e5ba4c42b1c0bbaf751dd243b41675e
MD5 hash:
ba5f5e874b0ccfe30a82769b73963973
SHA1 hash:
49d2dbed6437a988a3169fbce91b91378aef9fcf
Link:
https://www.unpac.me/results/847eb80b-7d21-45a7-88b8-e760d4322c5a/
SH256 hash:
9c17803d995739a37dd11c660bf75781a8354a37d39fee2bc1a1cf5088eb397e
MD5 hash:
0a624ac05f8c696b9d1df6e7e6e7c02d
SHA1 hash:
0df3be2897c75d853b729c6b8a18a67c3810b18e
Link:
https://www.unpac.me/results/847eb80b-7d21-45a7-88b8-e760d4322c5a/
SH256 hash:
efd2f7657839b252c2fb8489c1ccf610b8e57b471efe049de86a74bc1506775d
MD5 hash:
c3f3e4a9e9ab54bf847a9fc02e7a2160
SHA1 hash:
0853bec33e36ede763927cda0f03129ca763bc07
Link:
https://www.unpac.me/results/847eb80b-7d21-45a7-88b8-e760d4322c5a/
SH256 hash:
a399844738311c40578a974578232bb9c46b488a3011baf4770a77744abf818d
MD5 hash:
cd39dc91eea006a43fd3d30a259d7819
SHA1 hash:
c76ad4b206947b2f29466d23e4f0fd97b5123830
Link:
https://www.unpac.me/results/847eb80b-7d21-45a7-88b8-e760d4322c5a/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a39984473831/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/a399844738311c40578a974578232bb9c46b488a3011baf4770a77744abf818d

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 a399844738311c40578a974578232bb9c46b488a3011baf4770a77744abf818d

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/192023/

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