MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 903de95a30d55eaf9ecb49a0a310df96c215b51b25b3d3e8628adae14a94e7f0. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 903de95a30d55eaf9ecb49a0a310df96c215b51b25b3d3e8628adae14a94e7f0
SHA3-384 hash: e0046a10aae156f0de0ecf82c89c8d27516d193b75f79801df428b1672641d8a3f8215058776d2e2f67f6c384f69591f
SHA1 hash: 087152f91c6745ef0d1155e286417ee7c2d25017
MD5 hash: ce37e317bd2e988b5191468ce93a5f9e
humanhash: artist-fish-steak-bravo
File name:OC_8403754263563.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:717'824 bytes
First seen:2021-01-04 18:02:29 UTC
Last seen:2021-01-04 19:56:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:6vRkKLxPkooT5D09Dft07l+/1134X6CCo/e6A17BBuHK5Mc1:UpNPkoE5uDftX/z4Wo/eB5BcyMc
Threatray 2'161 similar samples on MalwareBazaar
TLSH 52E4F16366DE6F52E43897792C21189017F17A0CC763D6BEBFE60ECA1932B410973936
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: vps.diemp.com.ar
Sending IP: 173.237.185.145
From: Lorena Sanchez <info@espumasalcorta.com>
Subject: ORDEN DE COMPRA
Attachment: OC_8403754263563.cab (contains "OC_8403754263563.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
203
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OC_8403754263563.exe
Verdict:
Malicious activity
Analysis date:
2021-01-04 18:11:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c668cf1b-6202-4afe-8c6a-ea40cb52e1c9

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/110432/
Detection(s):
SecuriteInfo.com.ArtemisCE37E317BD2E.24849.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/573654
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 335886 Sample: OC_8403754263563.exe Startdate: 04/01/2021 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Sigma detected: Scheduled temp file as task from temp location 2->33 35 Yara detected AgentTesla 2->35 37 8 other signatures 2->37 7 OC_8403754263563.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\RoamingbehaviorgraphLUObwA.exe, PE32 7->19 dropped 21 C:\Users\user\...behaviorgraphLUObwA.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp4D38.tmp, XML 7->23 dropped 25 C:\Users\user\...\OC_8403754263563.exe.log, ASCII 7->25 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 Injects a PE file into a foreign processes 7->43 11 OC_8403754263563.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 chrismehat.com 67.21.94.15, 49756, 587 ST-BGPUS United States 11->27 29 mail.chrismehat.com 11->29 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/903de95a30d55eaf9ecb49a0a310df96c215b51b25b3d3e8628adae14a94e7f0/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-01-04 18:03:07 UTC
AV detection:
6 of 46 (13.04%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sa66swrq2vpk7hwljgqkgeg7s3bblni3ewz5h2dcrlnocsuu47ya._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
02392a754fd967d6ac72ee206b6ac9c3b3aab634abc9c49edb46a6b81ee828e6
AgentTesla
182c0e87117b2763f638ace1294239a1e6f779a293257d9f843365a77f9cb369
AgentTesla
3262041b975c085ac4910cab0c54cafd02bee3accf8f921712f9a626634ea833
AgentTesla
34fef61460f3196f9c4f0f267443302cc5573d935ad73f18eb33aea41d8be5d3
AgentTesla
5ccb4b42592b867c638bc0b10bd75d11865ee1bea36d8242bffe1aba403336e4
AgentTesla
69049cb94657b71040281c6906d20d60a4fe48b5c5ecdf2032980e1e898e550c
AgentTesla
8f56dac579673096203818fcc9fd96e120a82b697539e6da59558d57d8ba96cb
AgentTesla
ce2c29bbd18352557dd6fb16e294265d66d8d13e6d0586ef8030bbeb28e0cc97
AgentTesla
d13d830852f0979e5bdc92510044a36622047ff26d660c70783e96dde3e50bad
AgentTesla
d2433dbd7a76e652575d56f53a9ec74e403a66076351b0494ed74f5f2518af2c
AgentTesla
+ 2'151 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210104-1e2gtwt6jx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
903de95a30d55eaf9ecb49a0a310df96c215b51b25b3d3e8628adae14a94e7f0
MD5 hash:
ce37e317bd2e988b5191468ce93a5f9e
SHA1 hash:
087152f91c6745ef0d1155e286417ee7c2d25017
Link:
https://www.unpac.me/results/08661a15-866c-478d-af74-25958d919936/
SH256 hash:
e95328d0456cbcf7e18bbc83ea1ed2bfdd72fec34cbdd9dcccac668109b9b979
MD5 hash:
f06c9ffa912f0adc3b508978ff774c91
SHA1 hash:
1e24f501231965ce4e4ea15566cd8aef29da6d11
Link:
https://www.unpac.me/results/08661a15-866c-478d-af74-25958d919936/
SH256 hash:
cee9558d142ed8fca0fbd8cf4831a48a0e25ae4f8603438a654d00a6f6b12e15
MD5 hash:
1c864a9827e7e557d9fc9ce6f8b2caad
SHA1 hash:
2e4032f584d78fb35f12ef1f1c322368305204b2
Link:
https://www.unpac.me/results/08661a15-866c-478d-af74-25958d919936/
SH256 hash:
44106a7753790a12c522849b3f7da238337bd0342e5664021e25f79b2705ae9a
MD5 hash:
d43e8dcc8f8b23c144f820eaa9bdbee4
SHA1 hash:
41faa61eb543ac1386e59ef1e3c485a19458ff68
Link:
https://www.unpac.me/results/08661a15-866c-478d-af74-25958d919936/
SH256 hash:
3b606bdb328656d6ea777c236e157d4bdb5a2299e3fa1dd00da7bda3f23fb035
MD5 hash:
a2970e215ac788a7414d0c101b056575
SHA1 hash:
e32cd3d8ea5b28185131f124d4a464de44b2cb63
Link:
https://www.unpac.me/results/08661a15-866c-478d-af74-25958d919936/
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/903de95a30d55eaf9ecb49a0a310df96c215b51b25b3d3e8628adae14a94e7f0

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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

cab a232a4c8849e35bef91e700e99c49db145d2e2242e6d21553cb230380abea249

AgentTesla

Executable exe 903de95a30d55eaf9ecb49a0a310df96c215b51b25b3d3e8628adae14a94e7f0

(this sample)

  
Dropped by
MD5 d24d270d1bc238135c3ee6bb73ccd261
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a232a4c8849e35bef91e700e99c49db145d2e2242e6d21553cb230380abea249
Cape
Cape
https://www.capesandbox.com/analysis/110432/

Comments