MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8
SHA3-384 hash: 6ba457052d3919df77913eb15c742240931d1ff5d85b6523214fe53b51306e8205c4e5678c03cf41ef9246aad27e3984
SHA1 hash: 1daeb50275ffafcf36b876fac0cc996a017f5533
MD5 hash: df21f3fb1c4fce4b77436ec8bbdc6934
humanhash: bluebird-social-glucose-bacon
File name:731-95387434HAWB.DOC.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'025'024 bytes
First seen:2022-12-15 14:27:52 UTC
Last seen:2022-12-18 08:58:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:O3S2iNs5sp5sjBGWkC+2KOWa2Kx7D7GpdKrx/mCeUhkvkJ5d1O:IS1ss4jBG7C90eR6e1/p1R
Threatray 20'377 similar samples on MalwareBazaar
TLSH T16025D73C58E81A37F1B6D1F5DBC58D27B01A9427B2C5A96981D317AA03DBE5270CB03E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon e0b292aa9adab2b0 (8 x AgentTesla, 1 x RemcosRAT)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
731-95387434HAWB.DOC.exe
Verdict:
Malicious activity
Analysis date:
2022-12-15 14:29:29 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/a9e21d49-e210-4fd8-ab1e-d1e16d4258d0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/346675/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.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
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
strictor
Link:
https://www.filescan.io/uploads/639b2ef5af37e85897649e52/reports/b8067f63-7cfb-44bc-968c-60ee3f222f5d/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/885a75ff-a6d3-4cc3-80e0-902592543cd2
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1135059
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
.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
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: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 767789 Sample: 731-95387434HAWB.DOC.exe Startdate: 15/12/2022 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 12 other signatures 2->54 7 731-95387434HAWB.DOC.exe 6 2->7         started        11 BjaAStoXhwoV.exe 5 2->11         started        13 LdtJsTw.exe 2 2->13         started        15 LdtJsTw.exe 1 2->15         started        process3 file4 38 C:\Users\user\AppData\...\BjaAStoXhwoV.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpCCD9.tmp, XML 7->40 dropped 42 C:\Users\...\731-95387434HAWB.DOC.exe.log, ASCII 7->42 dropped 70 Uses schtasks.exe or at.exe to add and modify task schedules 7->70 72 Writes to foreign memory regions 7->72 74 Injects a PE file into a foreign processes 7->74 17 RegSvcs.exe 17 5 7->17         started        22 schtasks.exe 1 7->22         started        76 Multi AV Scanner detection for dropped file 11->76 78 Machine Learning detection for dropped file 11->78 24 RegSvcs.exe 4 11->24         started        26 schtasks.exe 1 11->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        signatures5 process6 dnsIp7 44 api.telegram.org 149.154.167.220, 443, 49712, 49716 TELEGRAMRU United Kingdom 17->44 46 192.168.2.1 unknown unknown 17->46 36 C:\Users\user\AppData\Roaming\...\LdtJsTw.exe, PE32 17->36 dropped 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->58 60 Tries to steal Mail credentials (via file / registry access) 17->60 62 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->62 32 conhost.exe 22->32         started        64 Tries to harvest and steal ftp login credentials 24->64 66 Tries to harvest and steal browser information (history, passwords, etc) 24->66 68 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->68 34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8/
Threat name:
ByteCode-MSIL.Trojan.Formbookinj
Create hunting rule
Status:
Malicious
First seen:
2022-12-14 10:25:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
37
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ujlzoi5omw2smybnmqcmx2paeoob5r7nbarcv7f6tzs6gwt5jhma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1932562dc1fc3dcea7da6d86ef26c12a34b0acce777807a5f0b4b5922950df05
AgentTesla
63dd2d58503796a7034915f4758b0cbde6979b4bdab4ea02fde50b3e2c98f7df
AgentTesla
878c0432fb98f448421b14563c401bdf946f7f77c5fc497aa53dcdc69bc31be7
AgentTesla
94954f4e2dd4bdb9d9a25687adb61397ba91eb0dbd5d14df01fe281222cd35d4
AgentTesla
a1503da6887c206ae3070cc780474897b492572a3d46b013d2215d529d0d0231
AgentTesla
ad5af6dd7b293e650c8e5b740aa48de75ae6aec0360489a5306b8cab6482a99f
AgentTesla
b37d9a54e81fc3feac68afee6c776fea62e111491db1da57456452beabe118ac
AgentTesla
be06f8a3ed040aadf2598bc5a9b4c886c271ad7866505dba11b723dba968f518
AgentTesla
eaf9f04e7b89ff0fd3fa3ab826230ffc410762cb6485c252d6682cd4d7630343
AgentTesla
+ 20'367 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/221215-rs1cvsfe5t/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5495243543:AAG3XPeGW7yqfXF6_EXjGSfO9SWHJTpqVsU/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/790849e6-53a2-4f1b-8d89-7d2291d69762
Unpacked files
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/7437348b-3425-429b-a38e-e76a951dd900/
SH256 hash:
a343d211e945202d651b79452fee4236a51c6181252a77bf1e8ffbc819d26b93
MD5 hash:
7971be2b852d1ed5ceb586c2c4fabdde
SHA1 hash:
4973b461a016cdae0aa4638c9ec2bae10aa19b42
Link:
https://www.unpac.me/results/7437348b-3425-429b-a38e-e76a951dd900/
SH256 hash:
7d1bc9d8e328e6c91872265b770107237efd7b75517777e059a22cf267652dc5
MD5 hash:
e473ea226cbdbe375938e9f4db21c97b
SHA1 hash:
2f0ab6de0459e0f4e40900e2f65e649a091221e5
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/7437348b-3425-429b-a38e-e76a951dd900/
Parent samples :
b921e7134e8ad218e90ad88491c0135ab7c00d5557c9781aea69de52c5d99207
2cae27fe5b93620d4d7f1b6e16566c618c23aaa11230ebb33a2bf57c0e576202
1ea31d04175fb842e43adb57eadd01486fbad17841f83d5eff065b67baeb4d69
191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458
a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8
e43659dac9e8276ec4f3948c5211c3c64b34b34307b1ad15681c81529c8b64ae
478d4b7a98b6885c7100de1e9dcd36eed9ecc95148f39bdd7af84be7ced2478b
b6cc5c882ca5a0cf1bddfd44343046c47ef2c90a519f1683467808752b7f1720
29c562c44604ece170da8b50d8d952961024f7d2f8c2301bbf28d31d2ba79a5e
01547e612fc731951049a35ed50621ffaecd45d0b0946c98f4c3c90730a9dda4
SH256 hash:
a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8
MD5 hash:
df21f3fb1c4fce4b77436ec8bbdc6934
SHA1 hash:
1daeb50275ffafcf36b876fac0cc996a017f5533
Link:
https://www.unpac.me/results/7437348b-3425-429b-a38e-e76a951dd900/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a2579723ae65/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/a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8

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

rar ca435f68ad4d8f49b688756fede16ca34aafdab5f6e714aec7f133b79f791ee7

AgentTesla

Executable exe a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/346675/
  
Dropped by
SHA256 ca435f68ad4d8f49b688756fede16ca34aafdab5f6e714aec7f133b79f791ee7
  
Dropped by
MD5 7eb341360221f08efd0d53b6433a16b6

Comments