MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e
SHA3-384 hash: aa93cb1ee9282251178bc4b9ac96b8a085410a2ac55d56886f81974d60316dc533c4ec194dd94d7a98fa9657cacbb900
SHA1 hash: 0c3c1afe7f980d8e7206285ddea4fd8db2c6e114
MD5 hash: 033ee77afd411d78cfd271a2a2572828
humanhash: skylark-enemy-football-mountain
File name:dekont.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:622'080 bytes
First seen:2023-09-07 06:45:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Bni9aV50UNSEbwUWjp1vmA+8kveI6uxMW5/0v9z8rZ116tnqwq0UvWPvQ4M5fVs1:g9aV50UNSRUQ1eF12BuxFC9z9tnqwq0n
Threatray 5'521 similar samples on MalwareBazaar
TLSH T16CD423086A326B31D6B903F7144530590BBBEA167081C97C0FCEF4C6427BB9DA3A48B7
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 e2983a9393ba98e2 (9 x AgentTesla, 2 x Formbook, 2 x SnakeKeylogger)
Reporter abuse_ch
Tags:AgentTesla exe geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
275
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
dekont.exe
Verdict:
Malicious activity
Analysis date:
2023-09-07 07:05:10 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/df48643b-3e84-4668-a868-04cb8c9c6638

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/446875/
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 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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/64f971af6048ca92831620e9/reports/3f12070f-b22a-45bd-8c3e-93f8c111e004/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e
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/d77c014a-ebcd-4b6d-be90-80dc52b2ddec
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1304977
Signature
.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
Hides that the sample has been downloaded from the Internet (zone.identifier)
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: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, 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: 1304977 Sample: dekont.exe Startdate: 07/09/2023 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Sigma detected: Scheduled temp file as task from temp location 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 6 other signatures 2->61 7 dekont.exe 7 2->7         started        11 bzRsDxs.exe 5 2->11         started        13 MmRKwR.exe 3 2->13         started        15 MmRKwR.exe 2->15         started        process3 file4 51 C:\Users\user\AppData\Roaming\bzRsDxs.exe, PE32 7->51 dropped 53 C:\Users\user\AppData\Local\...\tmp55AE.tmp, XML 7->53 dropped 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->69 71 Uses schtasks.exe or at.exe to add and modify task schedules 7->71 73 Adds a directory exclusion to Windows Defender 7->73 17 dekont.exe 2 5 7->17         started        21 powershell.exe 21 7->21         started        23 schtasks.exe 1 7->23         started        25 dekont.exe 7->25         started        75 Multi AV Scanner detection for dropped file 11->75 77 Machine Learning detection for dropped file 11->77 27 bzRsDxs.exe 4 11->27         started        29 schtasks.exe 1 11->29         started        31 MmRKwR.exe 15->31         started        33 schtasks.exe 15->33         started        35 2 other processes 15->35 signatures5 process6 file7 47 C:\Users\user\AppData\Roaming\...\MmRKwR.exe, PE32 17->47 dropped 49 C:\Users\user\...\MmRKwR.exe:Zone.Identifier, ASCII 17->49 dropped 63 Tries to steal Mail credentials (via file / registry access) 17->63 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->65 37 conhost.exe 21->37         started        39 conhost.exe 23->39         started        41 conhost.exe 29->41         started        67 Tries to harvest and steal browser information (history, passwords, etc) 31->67 43 conhost.exe 33->43         started        45 conhost.exe 35->45         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-09-07 06:38:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnistgwimp7wotcmn6fkeoifiq2bunaklq42lg7o5khsahvuznpa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
011cb8c9a10fb6468b0e904cde1538c37c744e3ca3721b93c6840b64d2bc9659
AgentTesla
1fe2be77e4073e5575b553ba1183fcb619c73639031b19e95b20c9b894bacbd4
AgentTesla
327f487c6ed34bbfc7d0541d081129d7b4bc4a6e071ed7750e9817da24d5a523
AgentTesla
3ea30252cf20d5db927ed45f477a20c02a6ebe21f052b778c9868cdf17b42b38
AgentTesla
53e446b388b5081f45daa0ee52e07b0b5123f8878148526bad39bc805a20a696
AgentTesla
69d31a62dc0f4c9faffbe33f0c65dfa6240ef17dff57cc5ccc1a15f1219c5eb9
AgentTesla
6eddba1588ba6d7183a7940a9974cc188c5473a5087f6853dc40c48df726d598
AgentTesla
71abfe67023b4b2085b187859621c1a5ef06fc8c8eafb4d084881a62a47ffc61
AgentTesla
e2b5d276a5778dcf5b0e456c751804a30d063feb2da1467ff01fa736179767ba
AgentTesla
+ 5'511 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/230907-hjmkzafb4w/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
40bc7cbcb1c6f215985580dfd1ce3c5ab203787a3263ef82dd8428f9e83c4bb6
MD5 hash:
515c64a2dc729f5a3794aa5fa9d90c61
SHA1 hash:
dffe3889785cd3e1b24f7bc58684887cb7126367
Link:
https://www.unpac.me/results/0ebbac38-a29e-4592-ab08-5cd12129a690/
SH256 hash:
87ad7f9e11f648d5c5e13307288c12d83d3f234a1579e50561a0a372f02a67e1
MD5 hash:
7749797189d3bf5ed297a4120d5cb1c3
SHA1 hash:
6a96df035de15c0e7626c6d9825832e165b026e7
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/0ebbac38-a29e-4592-ab08-5cd12129a690/
Parent samples :
53e446b388b5081f45daa0ee52e07b0b5123f8878148526bad39bc805a20a696
1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e
SH256 hash:
ba70208a07f875ee7232187706e42cd2b394a746df01307b5cde21041c313ead
MD5 hash:
0057be3fc146a6faa9b2972639207520
SHA1 hash:
32ade7b6d97290ae527c51820ad3c0b4286db25c
Link:
https://www.unpac.me/results/0ebbac38-a29e-4592-ab08-5cd12129a690/
SH256 hash:
0630b864e828fff2d66f33ab7d00fad231df4c00fc0bbad313ee0d12ca503198
MD5 hash:
f559a9abbd849eb977d262d597d6e4fd
SHA1 hash:
0a8769b40b026852690c89b913c2812817ef43c8
Link:
https://www.unpac.me/results/0ebbac38-a29e-4592-ab08-5cd12129a690/
Parent samples :
cef72412a1dd9486bae5f7e606d4330660fba98575ba1c939559ccc83536f41a
81ccf158093718305b3499d0f16d8a82bcad69f2740066daca8d5b5ca9979688
SH256 hash:
1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e
MD5 hash:
033ee77afd411d78cfd271a2a2572828
SHA1 hash:
0c3c1afe7f980d8e7206285ddea4fd8db2c6e114
Link:
https://www.unpac.me/results/0ebbac38-a29e-4592-ab08-5cd12129a690/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1b51299ac863/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/1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e

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: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 1b51299ac863ff674c4c6f8aa2390544341a340a5c39a59beeea8f201eb4cb5e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/446875/

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