MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303
SHA3-384 hash: 6d5e7f876d54d4704c6e37c5d3ad1d590994f7ccd35053e1be0cbf46d1988b51de388b325c6aabff146e0a212cc3ac02
SHA1 hash: dda11c22a7d3282d0cb47661618e7236e5da95f2
MD5 hash: b1d6c3539b6e19f9a5c95529418ca07e
humanhash: aspen-nitrogen-missouri-sierra
File name:dekont.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:498'688 bytes
First seen:2023-12-05 14:51:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:f6+GATQH1oKmzaUnHlDajSN/M97W3TxtWx0:5pNHlAS1M97W3p
Threatray 3'866 similar samples on MalwareBazaar
TLSH T11FB4B007BF96A4B2C2641737D5E79F8043B2D991B697D72B394E2BE608033BEAD40147
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter abuse_ch
Tags:AgentTesla exe geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
310
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/462653/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
Create hunting rule

Win.Trojan.EmbeddedReversedDLL-9940922-0
Create hunting rule

Win.Trojan.Generic-10014419-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Reading critical registry keys
DNS request
Sending an HTTP GET request
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/656f391518cffa73b1dac378/reports/62161ae8-3262-4e9c-9452-bf8e7f4bae8e/overview
Verdict:
Malicious
Labled as:
Trojan.Mardom.MN.Generic
Link:
https://www.hybrid-analysis.com/sample/f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303
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/981762a4-8aa5-4fad-9137-9c9adfe19191
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1354008
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-12-05 08:56:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6m7xwokus2lnmzhjka3nnhk6mp4cl3gpz5ed5smetenlujh4umbq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
3854cd33e108ddb1a962d791ac6098619bd7047a9c297f11fb96653a45aa3897
AgentTesla
404a9d49d8522e19080af0cb183134fc058120e30fa38f5b8234eeb583c6f079
AgentTesla
9155355baf8df04eb80c98c785632b808e63e255d92fe05572f2e5dc29ca69bc
AgentTesla
9e2598ee2aeeed340758b04a4d53f7a0934af3e65d8a2ee673bcda62aee5166c
AgentTesla
bd507ae47d810144a22828e8e9a0cd84764116c0e6147a35d665e6acf88fb82c
AgentTesla
e15644a809333b1e0cce7bab9f423af06b2362c501d3d8aac394ff2b367a0ad4
AgentTesla
f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303
AgentTesla
+ 3'856 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/231205-r8qtcsca87/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
afb07968e109a55502677e8597f8f7cd04f3e8d90a946fc495c07cfbabf26630
MD5 hash:
3e48359b8657829f83cc38af609ceaeb
SHA1 hash:
ac7a3a2ab52aa6379a8f025fefeeea2f9c6e0271
Link:
https://www.unpac.me/results/8ef371c2-ec90-4157-bc58-8c511d877d94/
SH256 hash:
07812da08ddaff18105b6fb12fa55ef543df5ffcd074939f95b1fe7f672aa383
MD5 hash:
8f60ccd7aefe2f3e6a0194a4fa17d506
SHA1 hash:
8f0ce967d3c52890f9959654a2a03e79e8be070c
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/8ef371c2-ec90-4157-bc58-8c511d877d94/
SH256 hash:
553619788a934de27b2ecef7110d5684709dea7c71f9c32f2c91922027c99396
MD5 hash:
365129ca491b3a4b46cf61fcef098106
SHA1 hash:
5e0cd735b67f12c67e4978e8e3d0bb70b87c7304
Link:
https://www.unpac.me/results/8ef371c2-ec90-4157-bc58-8c511d877d94/
SH256 hash:
34c66bdf17800e58cb835d94d77398087daba33f789e7a62db6745bfd0323654
MD5 hash:
36e5071b498ef17024ac707f600fb466
SHA1 hash:
15f7dfcfbb403b49b4a501615fc7ec3d9a57c095
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/8ef371c2-ec90-4157-bc58-8c511d877d94/
Parent samples :
9e2598ee2aeeed340758b04a4d53f7a0934af3e65d8a2ee673bcda62aee5166c
e15644a809333b1e0cce7bab9f423af06b2362c501d3d8aac394ff2b367a0ad4
f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303
SH256 hash:
f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303
MD5 hash:
b1d6c3539b6e19f9a5c95529418ca07e
SHA1 hash:
dda11c22a7d3282d0cb47661618e7236e5da95f2
Detections:
Typical_Malware_String_Transforms
Create hunting rule
Link:
https://www.unpac.me/results/8ef371c2-ec90-4157-bc58-8c511d877d94/
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/f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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
Rule name:SUSP_Reverse_DOS_header
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects an reversed DOS header
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe f33f7b39549696d664e95036d69d5e63f825eccfcf483ec984991aba24fca303

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/462653/

Comments