MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 643aff66eadbebbd4e58ae3def28bc56a3181f956015f8d92d561708a9c6e603. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 643aff66eadbebbd4e58ae3def28bc56a3181f956015f8d92d561708a9c6e603
SHA3-384 hash: da8e2a165231b48049e405c8d63e0a68c7682b93eccf7122d08d2600682bef2a9518ec90ad8463af389ecc763bb9cce8
SHA1 hash: 41216137dc64dad336557eff3ac5e993306f607f
MD5 hash: 445933473ad92697acb1333ba066c206
humanhash: nuts-oscar-ink-video
File name:purchase order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:947'712 bytes
First seen:2022-02-25 09:38:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:SrOGZkYH0Y1TYrNtfydXy6NptD73ehhafMpMlvsSPyjJymo4c6q7kIMlZAQ4dpQl:8UYyrvq46NPD73+Ul+SPGFo42Mlil8V
Threatray 16'301 similar samples on MalwareBazaar
TLSH T1031501293646DD52C23D1376C4DF440887F9BA842563DB1AB8CA22E91D533A3ED0F99F
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/244665/
Detection(s):
SecuriteInfo.com.Variant.Barys.58750.12063.21314.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
barys obfuscated packed
Link:
https://www.filescan.io/uploads/6218a3be0cd58dbd923a6be8/reports/841fb8d1-34a1-4e37-9907-1da4358201e6/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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/364ace04-66fb-45a0-bbb6-06ed52e815fa
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/946312
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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 dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicius Schtasks From Env Var Folder
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 578793 Sample: purchase order.exe Startdate: 25/02/2022 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for dropped file 2->41 43 17 other signatures 2->43 7 purchase order.exe 7 2->7         started        11 kprUEGC.exe 2 2->11         started        process3 file4 25 C:\Users\user\AppData\...\cNufNKgQRjK.exe, PE32 7->25 dropped 27 C:\Users\...\cNufNKgQRjK.exe:Zone.Identifier, ASCII 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmp63CC.tmp, XML 7->29 dropped 31 C:\Users\user\...\purchase order.exe.log, ASCII 7->31 dropped 45 Adds a directory exclusion to Windows Defender 7->45 47 Injects a PE file into a foreign processes 7->47 13 purchase order.exe 2 5 7->13         started        17 powershell.exe 25 7->17         started        19 schtasks.exe 1 7->19         started        49 Multi AV Scanner detection for dropped file 11->49 51 Machine Learning detection for dropped file 11->51 signatures5 process6 file7 33 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 13->33 dropped 35 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 13->35 dropped 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->53 21 conhost.exe 17->21         started        23 conhost.exe 19->23         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/643aff66eadbebbd4e58ae3def28bc56a3181f956015f8d92d561708a9c6e603/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-25 09:39:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mq5p6zxk3pv32tsyvy666kf4k2rrqh4vmak7rwjnkylqrkog4ybq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
33d61ffb942dd17cb278a7bf7389ce165184052a6ed33b211e6fde94470c2824
AgentTesla
5448a677e4ad2c66e2e7a2d9ca0437e48ec6f0e9d0239744288922d8da6f7e83
AgentTesla
708f2705669a4a5bc823f5aa9f429471d7f1b0aae0cf82a94ccb74380dc9db5d
AgentTesla
b1f257789748f730c5049aa47653680a1297a890c7ba86f8f914869b66249664
AgentTesla
c4d63dde38a7198a14e7663a0dd46406f777d03c48887cffd2c79c68ce1bb042
AgentTesla
f75ad0983d7c3b68c2111ede42de14998d0df954779d7d0f67d874b7602b5482
AgentTesla
fd00f16e9a82a98bfe3f6a3e3ce551ac74c30ce57ad9482d868de1e7df4c4015
AgentTesla
+ 16'291 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220225-lmmxpafgb5/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
e1bfd4baedcb9b0a1b092f5acfbc5dbaa08e1048529d502e45af438337a95b4c
MD5 hash:
89440e89ace7ff2e19268db2f92c1f09
SHA1 hash:
826850d755649ca4f0778f1650da366c0697ae20
Link:
https://www.unpac.me/results/2583973a-1a95-4a70-b4d5-48b9d3c28e84/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/2583973a-1a95-4a70-b4d5-48b9d3c28e84/
SH256 hash:
036ff52f7e187ac3cb311e13e7a2d9d2ac22315d9dab0f477a4c66684b87fd0b
MD5 hash:
ddee0d552cb0e9b1e0bc7836cf600da6
SHA1 hash:
23e8bf809c5a3f1a0ade40e3cd48dd09f8170dbd
Link:
https://www.unpac.me/results/2583973a-1a95-4a70-b4d5-48b9d3c28e84/
SH256 hash:
7366eb25f69b586f8c7ef85bad81a36c09524095c077c3d9edbef9c55de34813
MD5 hash:
5b9f07b0743b6d54dd88c70ce3d73747
SHA1 hash:
00da2354de0eb72c656069622851cb31ef08b6a8
Link:
https://www.unpac.me/results/2583973a-1a95-4a70-b4d5-48b9d3c28e84/
SH256 hash:
643aff66eadbebbd4e58ae3def28bc56a3181f956015f8d92d561708a9c6e603
MD5 hash:
445933473ad92697acb1333ba066c206
SHA1 hash:
41216137dc64dad336557eff3ac5e993306f607f
Link:
https://www.unpac.me/results/2583973a-1a95-4a70-b4d5-48b9d3c28e84/
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/643aff66eadbebbd4e58ae3def28bc56a3181f956015f8d92d561708a9c6e603

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: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 643aff66eadbebbd4e58ae3def28bc56a3181f956015f8d92d561708a9c6e603

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/244665/

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