MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586
SHA3-384 hash: a56c16ff22bbe36c3123ddda1c2dc2d0432be7cebe5be0b2c21ad3fa2760641e9c9c708b0d6cba3bd543f5c72248ab77
SHA1 hash: 73a53e1126b814ba898d779d388c914b7c73075f
MD5 hash: c19717dd47ab946565216078c0d3fc63
humanhash: november-vegan-pennsylvania-paris
File name:RevisedXContract.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:728'064 bytes
First seen:2023-10-23 13:32:53 UTC
Last seen:2023-10-26 07:49:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:MMPm+M3gR/mZRM+BJaWcM0sXXg/JXF5oJPwpG9HvrlyBwPdmbx64QwgrZmhhICnm:cgkZR5CW0sXwB1S5pDlDP0lwurm
Threatray 570 similar samples on MalwareBazaar
TLSH T132F412003764AB96C63D23F791CAD16C47F28B796722D70C6CD6B2D152B672AC9A1F03
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 lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
7
# of downloads :
306
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
RevisedXContract.exe
Verdict:
Malicious activity
Analysis date:
2023-10-23 13:36:03 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/338aeac8-590a-4ac8-bef5-b87543fe12a0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/653676112b74b3f20dd85214/reports/df8f5882-05d9-40e6-b52e-d39778fde6bd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b1f94c88-ba69-4bcf-9637-82193ad5e7e2
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1330605
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
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
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 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 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
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1330605 Sample: RevisedXContract.exe Startdate: 23/10/2023 Architecture: WINDOWS Score: 100 38 mail.hhipune.com 2->38 40 api4.ipify.org 2->40 42 api.ipify.org 2->42 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 9 other signatures 2->54 8 RevisedXContract.exe 7 2->8         started        12 vSrhVYnkHf.exe 5 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\vSrhVYnkHf.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\tmp4337.tmp, XML 8->36 dropped 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->56 58 Uses schtasks.exe or at.exe to add and modify task schedules 8->58 60 Adds a directory exclusion to Windows Defender 8->60 14 RevisedXContract.exe 15 2 8->14         started        18 powershell.exe 19 8->18         started        20 schtasks.exe 1 8->20         started        62 Multi AV Scanner detection for dropped file 12->62 64 Machine Learning detection for dropped file 12->64 66 Injects a PE file into a foreign processes 12->66 22 vSrhVYnkHf.exe 14 2 12->22         started        24 schtasks.exe 1 12->24         started        26 vSrhVYnkHf.exe 12->26         started        signatures6 process7 dnsIp8 44 mail.hhipune.com 85.187.128.52, 49726, 49730, 587 A2HOSTINGUS United States 14->44 46 api4.ipify.org 64.185.227.156, 443, 49725, 49729 WEBNXUS United States 14->46 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->68 70 Tries to steal Mail credentials (via file / registry access) 22->70 72 Tries to harvest and steal browser information (history, passwords, etc) 22->72 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-10-23 07:25:35 UTC
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sn62wauknwelpomfizogf2ysk6dyuqvymw3tzn2fyvmt2c3qwwda._file
Verdict:
malicious
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954ae52d71114f4e45fb12c0045bc4440822b855c3c2b4c5b685823709729e3b
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9aecf5734ff36e456fd5a50650b083c1d521d36212c0a440ec6202fc00d14380
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AgentTesla
+ 560 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231023-qtjaasah59/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
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
AgentTesla
Unpacked files
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/4e4d3191-69ea-45d5-ae3a-c16550ed8cff/
SH256 hash:
6d3dea088d90761ee4af9ce6d6c46ba504197bf28cd41fd9f141b0dcae0389ed
MD5 hash:
c54d31f921dabf40eb49099e1be37dce
SHA1 hash:
dd8c8247f5ef4b7fd66334565563daaab01c8240
Link:
https://www.unpac.me/results/4e4d3191-69ea-45d5-ae3a-c16550ed8cff/
SH256 hash:
919344e6dab2c2ca74ec6efef65689858981b24f670432f8921c06c03ffd8cfb
MD5 hash:
59b9150a3d0475ec3af331fe20e16152
SHA1 hash:
8b8851ebefd1e298b8fb9e9eccbe3f9bf7426ca6
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/4e4d3191-69ea-45d5-ae3a-c16550ed8cff/
Parent samples :
937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586
e6d6dc7bbb506e894bb0742b96b51302961084748ad7d255e845f5998c3b8483
4ad5d7938a8d78d2529a72df4f8928c8be69d14e7366dc3677ae509925d08646
a887e1c932b7e42f83dd7b0592725b123c83bb2827e5aa5b29d17a654e57dc7b
4de3272c8195c4473cfa3c3abaaf682c7975ee0dc02f555fb5ac8588dcf3af26
SH256 hash:
55b6cb7467359aa5843d18211c5e11f2c0ec25e1e6b282596db73a65b23e1978
MD5 hash:
8127f9bf73396f3d650378c3a563f832
SHA1 hash:
4362224d0e1686b1c86cff1a5d283018154f797b
Link:
https://www.unpac.me/results/4e4d3191-69ea-45d5-ae3a-c16550ed8cff/
SH256 hash:
937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586
MD5 hash:
c19717dd47ab946565216078c0d3fc63
SHA1 hash:
73a53e1126b814ba898d779d388c914b7c73075f
Link:
https://www.unpac.me/results/4e4d3191-69ea-45d5-ae3a-c16550ed8cff/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/937dab028a6d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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

Executable exe 937dab028a6d88b7b985465c62eb1257878a42b865b73cb745c5593d0b70b586

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments