MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75a25ca27415d7a318ed0cc5e36ef146b0ef0719a33efb6e6ae033422250dfda. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 75a25ca27415d7a318ed0cc5e36ef146b0ef0719a33efb6e6ae033422250dfda
SHA3-384 hash: 9ea8a8a1e5b7d896ee0292b5c31430ab0fe1ecf242622f1bc9e08e12ef0c68e73e2d02b95b144605cb24a3f052eaccf5
SHA1 hash: 4887c607c109d3d2e4db330d8bfac18e566d1600
MD5 hash: 822514069b929321e08d7db13ecf8159
humanhash: eighteen-apart-floor-mirror
File name:Bestil 5039066002128.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:734'720 bytes
First seen:2021-06-09 08:36:05 UTC
Last seen:2021-06-09 09:46:11 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:e+Zg15tNPvHyBAkqgo2lMV40J9f0ki028CJEFDKTYo0l60e5PltfdRc8:ecBARgo2U30kilYKTYoH0e5Pltfnc
Threatray 5'725 similar samples on MalwareBazaar
TLSH AFF4DF3562488909E07F5336A071550443F5FD0BD362EA0DFEA978E92EB23C2A36F657
Reporter TeamDreier
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/165568/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.832.4110.7686.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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/06620b2e-58ad-40ce-a68a-75c5795f2279
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/799400
Signature
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Moves itself to temp directory
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)
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 access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 431796 Sample: Bestil 5039066002128.exe Startdate: 09/06/2021 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected AgentTesla 2->41 43 6 other signatures 2->43 6 Bestil 5039066002128.exe 3 2->6         started        9 YYtJku.exe 3 2->9         started        12 YYtJku.exe 2->12         started        process3 file4 21 C:\Users\...\Bestil 5039066002128.exe.log, ASCII 6->21 dropped 14 Bestil 5039066002128.exe 2 5 6->14         started        45 Multi AV Scanner detection for dropped file 9->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->49 51 Injects a PE file into a foreign processes 9->51 19 YYtJku.exe 2 9->19         started        signatures5 process6 dnsIp7 27 us2.smtp.mailhostbox.com 208.91.199.224, 49771, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->27 23 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 14->23 dropped 25 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 14->25 dropped 29 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->29 31 Moves itself to temp directory 14->31 33 Tries to steal Mail credentials (via file access) 14->33 35 3 other signatures 14->35 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/75a25ca27415d7a318ed0cc5e36ef146b0ef0719a33efb6e6ae033422250dfda/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-09 06:57:31 UTC
AV detection:
7 of 44 (15.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=owrfzitucxl2gghnbtc6g3xri2yo6byzum7pw3tk4azueisq37na._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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35b8e3ac887b7a542ac7b636ea576aef98d242f78acbecb5a8378abd07d1e52c
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7a517cc470024b2760e07a9eade9ece2df25c7ce06c9a08461bca975eee4f342
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84aee29ff996e561873637b420aa3b03a80fea62b41cfae85159ee65969e34f2
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b1db9b45aa4903a5d9086d759765f4cb76a23e601c7bfd8133d440cace108307
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c9af30b2a800c774844eee76e019d10b72c4637adbccd34a6de3bcc8a4f32ba4
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f5a8b50ac13f3ecea0bf447a41128d06f1409689fe95d611574e51ea435c75ca
AgentTesla
+ 5'715 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210609-dp9pt85v1s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
e987e066b6b1ca5c3698a367d405b671a7f33e388289cb6b191faf4796478596
MD5 hash:
8b3814abb5e9cd9fb5da34bc71a4afc2
SHA1 hash:
8005c030dd9d0c1f146d18c4597f0a0f55e16577
Link:
https://www.unpac.me/results/1ef150dd-5ad7-41ff-93ac-597f840a0044/
SH256 hash:
75a25ca27415d7a318ed0cc5e36ef146b0ef0719a33efb6e6ae033422250dfda
MD5 hash:
822514069b929321e08d7db13ecf8159
SHA1 hash:
4887c607c109d3d2e4db330d8bfac18e566d1600
Link:
https://www.unpac.me/results/1ef150dd-5ad7-41ff-93ac-597f840a0044/
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/75a25ca27415d7a318ed0cc5e36ef146b0ef0719a33efb6e6ae033422250dfda

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.

Cape
Cape
https://www.capesandbox.com/analysis/165568/

Comments