MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836. 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: 19


Intelligence 19 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836
SHA3-384 hash: 5c6e71aa3a9fc374b0b28b575e92b351c7d3a3e7548b4243e513e8eda69c453f13567f34319abe05bb2029200a0192fb
SHA1 hash: 33aec5ec1bdfdf55b4b0f53eed4633322a155e07
MD5 hash: f1f4e44db60a703626fbec7f85cc134e
humanhash: chicken-iowa-summer-mango
File name:ATTACHED INVOICES.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'251'328 bytes
First seen:2023-11-15 14:37:01 UTC
Last seen:2023-11-16 15:25:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 24576:e0/2xXHPeR1C4PcEJ902Ai+ShpP8rnI4zPE60:qxXHPeR15cEJbTvsnI4f0
TLSH T1CE454ABF6A881123C4B9D7B383B3A422F17B8CA7753A9E2D24D6F5910773A4234C561D
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 f4c0c8f4c486e6c4 (2 x AgentTesla)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
341
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
ATTACHED INVOICES.exe
Verdict:
Malicious activity
Analysis date:
2023-11-15 14:38:22 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/136a0de1-ceed-4f04-88e6-3a76611a7ed8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/458738/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a process with a hidden window
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 file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6554d7c928bfca96f8ad1548/reports/cbb2d2e1-6636-44a6-9bfe-af034ec7dc02/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836
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/39392f16-4571-49e5-9f30-fcbc8e212f00
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1343059
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
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
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1343059 Sample: ATTACHED_INVOICES.exe Startdate: 15/11/2023 Architecture: WINDOWS Score: 100 51 mail.unitechautomations.com 2->51 53 fp2e7a.wpc.phicdn.net 2->53 55 3 other IPs or domains 2->55 61 Found malware configuration 2->61 63 Sigma detected: Scheduled temp file as task from temp location 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 9 other signatures 2->67 8 ATTACHED_INVOICES.exe 7 2->8         started        12 GzAPzsUgs.exe 5 2->12         started        14 fCVSa.exe 2->14         started        16 fCVSa.exe 2->16         started        signatures3 process4 file5 47 C:\Users\user\AppData\RoamingbehaviorgraphzAPzsUgs.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmp820F.tmp, XML 8->49 dropped 79 Uses schtasks.exe or at.exe to add and modify task schedules 8->79 81 Writes to foreign memory regions 8->81 83 Allocates memory in foreign processes 8->83 89 2 other signatures 8->89 18 MSBuild.exe 16 4 8->18         started        23 MSBuild.exe 8->23         started        25 powershell.exe 23 8->25         started        35 3 other processes 8->35 85 Multi AV Scanner detection for dropped file 12->85 87 Machine Learning detection for dropped file 12->87 27 MSBuild.exe 12->27         started        29 schtasks.exe 12->29         started        31 conhost.exe 14->31         started        33 conhost.exe 16->33         started        signatures6 process7 dnsIp8 57 mail.unitechautomations.com 192.185.129.60, 49710, 49717, 587 UNIFIEDLAYER-AS-1US United States 18->57 59 api4.ipify.org 104.237.62.212, 443, 49709, 49713 WEBNXUS United States 18->59 45 C:\Users\user\AppData\Roaming\...\fCVSa.exe, PE32 18->45 dropped 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->69 71 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->71 37 conhost.exe 25->37         started        73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->73 75 Tries to steal Mail credentials (via file / registry access) 27->75 77 Tries to harvest and steal browser information (history, passwords, etc) 27->77 39 conhost.exe 29->39         started        41 conhost.exe 35->41         started        43 conhost.exe 35->43         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-15 06:40:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=momlsivomhcuzdgmsnzf2wcmry7qymafofwneh6wh63z4o6hra3a._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231115-ry5jrsbd46/
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:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/ac2ee9fb-8a1e-41ac-9cdf-a46444972cf3/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/ac2ee9fb-8a1e-41ac-9cdf-a46444972cf3/
SH256 hash:
884f04be9130ac85bad5b12ce23bf11de25a889decc5f70cdb6be08e93bea020
MD5 hash:
9728c9e2bafaada4694bace9533a0197
SHA1 hash:
950f0e5f18f1191dbb0a79b19534272754fd02f2
Link:
https://www.unpac.me/results/ac2ee9fb-8a1e-41ac-9cdf-a46444972cf3/
SH256 hash:
25f455f936fb8836b363683c409396ce338b6a38b92da08ebe7b7442be710fb5
MD5 hash:
e7bc7eb1caff2058f727a39eff9247e3
SHA1 hash:
3a5c5285262f0d10fff8756fc071b139da23e803
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_bytecodes_sep_2023
Create hunting rule
Link:
https://www.unpac.me/results/ac2ee9fb-8a1e-41ac-9cdf-a46444972cf3/
Parent samples :
25f455f936fb8836b363683c409396ce338b6a38b92da08ebe7b7442be710fb5
c22334a30489c310ccebd2eb69b289bf3f01461a72a4da146a59cdaa06283e04
e6b297fc5effcaa65ed935f78e8b663257f447a9f569c4da0411854fe28a75e7
c1d57ced264a612aa7069940bd8bc2ad9b1b5d66cf8258ed58027b6101d60e28
ec782c6c9788c784234f2bf815b0a2774d55e5a08d42aac4ddc79f8710b4d469
d228edad00c7342f36732017beec3c7ea9057b6ff8c527198ab29d9eefcee645
7eaae233b18c778b06506f210e3c6f3076bcd1957930b3ced131749683d05703
71357accda25349b67f991641c8e64697016e6ca4046602dca0c7ca253ad582f
1e1a3828028401c6052fd951935347159121c19c01e7dc47fa2d4620a60c720d
f1a6e53beb7e03091a732ba8d1093eb5162dd620c85f7ee44bdc6efe25c3c853
6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836
4e9869213e582a8e92d9404c2d74019b550c4363c5855bb6d8a6698a417bc64c
f90d6b1d57aa25effd10bfff611d754196e2244df30a2da41a2ba56eed8d9bad
47fc622827b4898f1fd2735731f6d8c03ba59f65c81411233d4844211749262e
5f934b9c66294466761558a608c02f2d3f73dc5a05a63bb52a5e0e1b0a9a173a
eb0c9f7ff7106033740df49533023ab8c93304ec66c76496dde0aab528a7472a
SH256 hash:
6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836
MD5 hash:
f1f4e44db60a703626fbec7f85cc134e
SHA1 hash:
33aec5ec1bdfdf55b4b0f53eed4633322a155e07
Link:
https://www.unpac.me/results/ac2ee9fb-8a1e-41ac-9cdf-a46444972cf3/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6398b922ae61/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
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 0fe3a1191b5f6d5cb9509f93081e04a063e5668c3fe10ab677887c1c3f7f72b6

AgentTesla

Executable exe 6398b922ae61c54c8ccc93725d584c8e3f0c3005716cd21fd63fb79e3bc78836

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/458738/
  
Dropped by
SHA256 0fe3a1191b5f6d5cb9509f93081e04a063e5668c3fe10ab677887c1c3f7f72b6
  
Dropped by
MD5 5df1ab06d71ee4a3e346017c6a579839

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