MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e257d47b4824f3ec42b8c554f85cde0da89c359fecedc38be112da8724806576. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e257d47b4824f3ec42b8c554f85cde0da89c359fecedc38be112da8724806576
SHA3-384 hash: 29b33d46bb2226039c7ffba315c604e5d7ecfb9dcf2aabd36a92a7171a7f9d7b36f8921fc093114de179f85cc8d19525
SHA1 hash: 73d4579734571d49e9415e33a6e8393136e67334
MD5 hash: 1f3a991d42f133391bb14e9def7842d2
humanhash: jersey-burger-sweet-bluebird
File name:Specification.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:673'792 bytes
First seen:2021-09-24 12:13:29 UTC
Last seen:2021-09-24 13:21:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'649 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:KGESgY6ncSxPZ5clX1MzwnhVOTqZJYW/LfJo1mJxRHHE6mRsc9gC8NLhPtD6IA1:RsxPZ5ah/pLfJYOW
Threatray 10'241 similar samples on MalwareBazaar
TLSH T13BE4E053A286DE5BC348193D4560FE588269CFA11957E68AE8293132BDF7D0BFF04DC2
File icon (PE):PE icon
dhash icon f0f0f2b2e834b498 (29 x AgentTesla, 12 x AveMariaRAT, 8 x RedLineStealer)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Specification.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-24 12:14:45 UTC
Tags:
keylogger stealer agenttesla
Link:
https://app.any.run/tasks/26371a32-b879-4d0c-95e3-9b0699b40166

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/191168/
Detection(s):
SecuriteInfo.com.Variant.Strictor.25322.11310.15620.UNOFFICIAL
Create hunting rule

Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/622a3e71-da6a-43ce-9848-f00c72166c85
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/857347
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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 access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 489778 Sample: Specification.exe Startdate: 24/09/2021 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected AgentTesla 2->38 40 5 other signatures 2->40 6 Specification.exe 3 2->6         started        10 newapp.exe 3 2->10         started        12 newapp.exe 2 2->12         started        process3 file4 28 C:\Users\user\...\Specification.exe.log, ASCII 6->28 dropped 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->44 46 Injects a PE file into a foreign processes 6->46 14 Specification.exe 17 5 6->14         started        48 Machine Learning detection for dropped file 10->48 18 newapp.exe 2 10->18         started        20 newapp.exe 2 12->20         started        22 newapp.exe 12->22         started        24 newapp.exe 12->24         started        26 2 other processes 12->26 signatures5 process6 file7 30 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 14->30 dropped 32 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 14->32 dropped 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->50 52 Tries to steal Mail credentials (via file access) 14->52 54 Tries to harvest and steal ftp login credentials 14->54 56 3 other signatures 14->56 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e257d47b4824f3ec42b8c554f85cde0da89c359fecedc38be112da8724806576/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-24 12:14:10 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4jl5i62ietz6yqvyyvkpqxg6bwujynm75tw4hc7bclniojeamv3a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
034f779a5a2a0436348e9a12d33fc925c688300c26561d8f413ffbfa89dd6c8e
AgentTesla
3529f437801eed53684a28376fa14332cf44a3b8396e8473bccdb92bf2fedb25
AgentTesla
3846d47dca1f1fed9d5fd5630118cd3b7282938895d25afc3b528cf0cfc1ac4a
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4994562a8195097940cac88cff7737d8d990189acfdc2e1bc2f0133428304593
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8c63a7665a27d47e20bd74c4aaba5cf4a76d981bfd52820f935efd097dcfda3d
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8ef4a31bc2a6eacd381e90d8873c55da95a1ed26ec3240d38bfec7b0a25a6e6f
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9ee852c4dcad25ccc76de768f756f63c0c49fa41eea3c5e9a01b31e8741dadfa
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b26bfa277644c0c5eb8fa1a8bc4734131ab15100d81b2d5a1dc9aaee1fd2a23a
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db7c19e4dfdcce7817b7a6608b3d800668ec0ac950962e3a01f6159b4cf4a9d9
AgentTesla
+ 10'231 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/210924-peccrshaa9/
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/a96eabb1-fc23-442f-a256-a3c0d0686526/
SH256 hash:
04d6c7b0f755a540e408ace153063fd8bcc61249c7effbc59ed7cb1c1d0d9747
MD5 hash:
0997edc8e467a6a46787fad3b9953875
SHA1 hash:
c9b227936c64226da96269e027cb36d6e6fed604
Link:
https://www.unpac.me/results/a96eabb1-fc23-442f-a256-a3c0d0686526/
SH256 hash:
2241e105f4d9d02f898d8395a712a1c61bcae5d5cf5e52dc37cccd9a4cbe7bb1
MD5 hash:
36fa916ea33da29b017dc9b363834024
SHA1 hash:
a75acb3c65f0a012f58a4c00b4d0c9eb7bf38da6
Link:
https://www.unpac.me/results/a96eabb1-fc23-442f-a256-a3c0d0686526/
SH256 hash:
db0a78e3af54605297eac0acf90ce8154978980914e3c0125aaede22e61f4e47
MD5 hash:
1ac97438c08a7f459eea8a6e33bcfdf6
SHA1 hash:
250d92e8864ce138ebb24d629579a25f5b45f73e
Link:
https://www.unpac.me/results/a96eabb1-fc23-442f-a256-a3c0d0686526/
SH256 hash:
e257d47b4824f3ec42b8c554f85cde0da89c359fecedc38be112da8724806576
MD5 hash:
1f3a991d42f133391bb14e9def7842d2
SHA1 hash:
73d4579734571d49e9415e33a6e8393136e67334
Link:
https://www.unpac.me/results/a96eabb1-fc23-442f-a256-a3c0d0686526/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e257d47b4824/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/e257d47b4824f3ec42b8c554f85cde0da89c359fecedc38be112da8724806576

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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
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

Executable exe e257d47b4824f3ec42b8c554f85cde0da89c359fecedc38be112da8724806576

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/191168/

Comments