MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1b407328dfb3df00e409a9c3661b8ed81aea549322104e30929f1d669404d06. 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: c1b407328dfb3df00e409a9c3661b8ed81aea549322104e30929f1d669404d06
SHA3-384 hash: 519e74de5109567fc29031fc4f4314036263eca913cee4acfc46d316c1397a97144e1f6faf36acda381dd0c0bd5df4c9
SHA1 hash: a9b279303427af24ce19e22e654362422fa56418
MD5 hash: 856298e2a1e7d8edab325380bb027029
humanhash: xray-florida-earth-ink
File name:PURCHASE ORDER No 2210748.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:659'456 bytes
First seen:2023-06-21 11:27:44 UTC
Last seen:2023-06-22 06:33:19 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:usSpdvDhH62MmgPFHycAs36c4jvFGMbEhTNi9CKopXJ6OFUkIcS:UdvDcAwJheGMAfi9iNgc
Threatray 3'147 similar samples on MalwareBazaar
TLSH T1B9E41248737E4322D9F353F8D562267603BBAE5E3562D22C4EC770E91666F014702E9B
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)
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
303
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PURCHASE ORDER No 2210748.exe
Verdict:
Malicious activity
Analysis date:
2023-06-21 11:28:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/26a16939-abbb-4942-895e-3fe30b904d41

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XorStringsNET
Create hunting rule
Link:
https://www.capesandbox.com/analysis/401340/
Detection(s):
Sanesecurity.Rogue.0hr.20230621-1234.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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 with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6492dec4b453925d40730863/reports/7814c53f-9510-46c0-9ffd-f3aa7e6f5ff3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c1b407328dfb3df00e409a9c3661b8ed81aea549322104e30929f1d669404d06
Result
Verdict:
UNKNOWN
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/45c4435b-b7b4-4189-b0fa-2c9a1aadaedc
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1258962
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
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
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: MSBuild connects to smtp port
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 891983 Sample: PURCHASE_ORDER_No_2210748.exe Startdate: 21/06/2023 Architecture: WINDOWS Score: 100 66 Found malware configuration 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 7 other signatures 2->72 7 PURCHASE_ORDER_No_2210748.exe 7 2->7         started        11 pWDBTxzfOxPz.exe 5 2->11         started        13 aCcAwFD.exe 2->13         started        15 aCcAwFD.exe 2->15         started        process3 file4 46 C:\Users\user\AppData\...\pWDBTxzfOxPz.exe, PE32 7->46 dropped 48 C:\Users\...\pWDBTxzfOxPz.exe:Zone.Identifier, ASCII 7->48 dropped 50 C:\Users\user\AppData\Local\...\tmpA94C.tmp, XML 7->50 dropped 52 C:\...\PURCHASE_ORDER_No_2210748.exe.log, ASCII 7->52 dropped 86 Uses schtasks.exe or at.exe to add and modify task schedules 7->86 88 Adds a directory exclusion to Windows Defender 7->88 17 MSBuild.exe 17 4 7->17         started        22 powershell.exe 21 7->22         started        24 schtasks.exe 1 7->24         started        90 Multi AV Scanner detection for dropped file 11->90 92 Machine Learning detection for dropped file 11->92 26 MSBuild.exe 11->26         started        28 schtasks.exe 1 11->28         started        30 MSBuild.exe 11->30         started        32 MSBuild.exe 11->32         started        34 conhost.exe 13->34         started        36 conhost.exe 15->36         started        signatures5 process6 dnsIp7 54 api4.ipify.org 173.231.16.76, 443, 49695 WEBNXUS United States 17->54 56 smtp.gmail.com 173.194.79.108, 49697, 587 GOOGLEUS United States 17->56 58 api.ipify.org 17->58 44 C:\Users\user\AppData\Roaming\...\aCcAwFD.exe, PE32 17->44 dropped 74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->74 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->76 78 May check the online IP address of the machine 17->78 38 conhost.exe 22->38         started        40 conhost.exe 24->40         started        60 64.185.227.155, 443, 49696 WEBNXUS United States 26->60 62 108.177.119.109, 49698, 587 GOOGLEUS United States 26->62 64 api.ipify.org 26->64 80 Tries to steal Mail credentials (via file / registry access) 26->80 82 Tries to harvest and steal browser information (history, passwords, etc) 26->82 84 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->84 42 conhost.exe 28->42         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c1b407328dfb3df00e409a9c3661b8ed81aea549322104e30929f1d669404d06/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-06-21 07:13:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yg2aomun7m67adsatkodmyny5wa25jkjgiqqjyyjfhy5m2kajuda._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0ffb2f62c79661847214dbf0242b3ccb488782b9a06278a1b66244f9338f2525
AgentTesla
5206fb34c3360635f7a152e0f3f336dafbca03f1e3d2bb957b8cb9adc726240e
AgentTesla
5935b528198306ddd89ca0f4c5772393861626a24253b2de9f7fb74eb20e29b9
AgentTesla
8aa6646e0d7997fc15f5b67cfddb0aef3d1ca580c5dabf0396e6c62fa666ec70
AgentTesla
9197cc85a9c5fc3d9463da236c1c96551a0e805bdfd2d3c133a479f9b2ae6d0a
AgentTesla
d01060cd9a636414bd6e2e09712a5d12808fe8d3822ac1bb1e5bc90eb7f9f69c
AgentTesla
d4eb0b351ba85b39db243f72e6aa72111e9db00683f66dde74a5f7b845c89f02
AgentTesla
+ 3'137 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/230621-nkzvksgh59/
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
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
52f358d201e81d3a0391cedd3042e2f957555b77aa49559f7fb810bbb7673ba1
MD5 hash:
c785ddc46141af772c75101d17c46a41
SHA1 hash:
e248723b6f60cc7607980d07172b64c33b2b2f15
Link:
https://www.unpac.me/results/3a92b873-46f0-4e60-bc77-7e825a1f02d7/
SH256 hash:
53a6042071c7a76e4e8ac63dfa161d7e69ba3fbc19c376ee479736d48c54160f
MD5 hash:
b4285b440108b95c0081f761fa9850c8
SHA1 hash:
84c606127159444b56ed9d0b3cfbd98bc4e69d15
Link:
https://www.unpac.me/results/3a92b873-46f0-4e60-bc77-7e825a1f02d7/
SH256 hash:
fcd9a285076c520c73421fa9b0456c06cdbb3c087481f167e6bd5b18555dc191
MD5 hash:
bc1c82571e046deac0795f832966fda6
SHA1 hash:
76a5bf8577374c9e61abc76f4ba88ee044580525
Link:
https://www.unpac.me/results/3a92b873-46f0-4e60-bc77-7e825a1f02d7/
SH256 hash:
d495833f204e4cf02f08493c2b76edc8aa20e1e801f8ad4a0eae2bdf8481fedd
MD5 hash:
c94d886c503c4b4975cd92e80429ccbc
SHA1 hash:
1e8307717a3812d2321ececd55bebaf52ae1548f
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/3a92b873-46f0-4e60-bc77-7e825a1f02d7/
Parent samples :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 hash:
cae6ddff3f8ceae90ee73dab142339a0c4bc7c79621f1931f2d8b630d79111d7
MD5 hash:
83f57a85307c3210ec83260f060aa466
SHA1 hash:
10cc726a19c762ec421f188333af9948ad92b46f
Link:
https://www.unpac.me/results/3a92b873-46f0-4e60-bc77-7e825a1f02d7/
SH256 hash:
c1b407328dfb3df00e409a9c3661b8ed81aea549322104e30929f1d669404d06
MD5 hash:
856298e2a1e7d8edab325380bb027029
SHA1 hash:
a9b279303427af24ce19e22e654362422fa56418
Link:
https://www.unpac.me/results/3a92b873-46f0-4e60-bc77-7e825a1f02d7/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c1b407328dfb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/c1b407328dfb3df00e409a9c3661b8ed81aea549322104e30929f1d669404d06

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

zip 65b84c96a609b94f3075eef3a033af2c9e7fd08ff0523f686a731458f95da50f

AgentTesla

Executable exe c1b407328dfb3df00e409a9c3661b8ed81aea549322104e30929f1d669404d06

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 65b84c96a609b94f3075eef3a033af2c9e7fd08ff0523f686a731458f95da50f
Cape
Cape
https://www.capesandbox.com/analysis/401340/
  
Dropped by
SHA256 5c6d793af492602543f46f1ad68b19f45569125f8328d640ab78b74101a8dfd0
  
Dropped by
MD5 62cd3d0b295877a3b93e1f658ef0d445
  
Dropped by
MD5 613250ae007eaba98a9cdf53bb1d1ad7

Comments