MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415. 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


Formbook


Vendor detections: 15


Intelligence 15 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415
SHA3-384 hash: 464f2a797d5382d18632a12b63d9e597dd8f65d67dfb90ecb1e2e768b6e57eaeacbf628941a89497963a8c816bb49c21
SHA1 hash: 313a276fb05075a864c6d8300417eaafc909a2eb
MD5 hash: 685cf5c7b1f587dfe9b8a7cc8df2e4fa
humanhash: winter-yellow-blue-summer
File name:DHL_documentos_98757646578679087643524346576.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'073'265 bytes
First seen:2024-02-06 19:39:53 UTC
Last seen:2024-02-06 21:32:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d3bf8a7746a8d1ee8f6e5960c3f69378 (247 x Formbook, 75 x AgentTesla, 64 x SnakeKeylogger)
ssdeep 24576:cRmJkcoQricOIQxiZY1ianyNQOzrbRRS3SOfRe1LB:JJZoQrbTFZY1iayNQOzeSpb
Threatray 2'792 similar samples on MalwareBazaar
TLSH T17C35BF13B8C28025D5739AF29E7AF32A593EAD670227C15B37C42F560F61447AF29722
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 70b071f0f0b0f0f0 (1 x Formbook, 1 x AgentTesla)
Reporter malwarelabnet
Tags:AgentTesla exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
273
Origin country :
CA CA
Vendor Threat Intelligence
Detection:
AgentTeslaV2
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Link:
https://www.capesandbox.com/analysis/474928/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.71529946.13490.5782.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit fingerprint keylogger lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/65c28b18e8d5f6639a35360f/reports/79acb307-b4de-4b64-a566-01809218a2a0/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0a72eaae-319d-4606-a993-4b02c054cf98
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1387796
Signature
Check if machine is in data center or colocation facility
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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
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 steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415/
Threat name:
Win32.Worm.DorkBot
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Status:
Malicious
First seen:
2024-02-05 22:19:21 UTC
File Type:
PE (Exe)
Extracted files:
29
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zkavpem3sdl2mmlfhwwpryn7t2pxgmhev7w3fuh3sfkoibniwqkq._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Similar samples:
009c7f2dc41140abf1c9f318059a101118bb134fc16da828dbf436babe35d31f
Formbook
5769990f534b9e77b10af7b86276d41673e4e5e81ee2be5768f838e838299cff
Formbook
667ade680488ead36e7e6cd112f953212c964c0dcbef2fe88923811df818e161
Formbook
b909af5762d7adef435ec0cb9afd8752d171952dc796d9a7269d2b1838e31225
Formbook
e7236fe777e772afa5fe027e6013318ae8724059ee3d05101771d4528e7fc5b6
Formbook
+ 2'782 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/240206-ydhylaeeb8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Unpacked files
SH256 hash:
6262a2af64ffe825409bcc421ee49d5059c119f31e1aecadeb54224d732b6f66
MD5 hash:
168d0e943005972c49d37789f723680c
SHA1 hash:
e912328392ead4004760e28b629026e2e89dae52
Detections:
win_agent_tesla_g2
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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MALWARE_Win_AgentTeslaV2
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Link:
https://www.unpac.me/results/fc91081b-ab6e-4966-811c-e21b5704fc2b/
Parent samples :
f47c028b576f0510c5a5ecee522789eccef66ac59d3d60e7b4c91ef0841e9730
d6be3ce60c7585b89ff180e61027f1c0259975b5c4b3d315fc9a70ee46e5392e
4a0a4e9caa9ec0c910beb5023912bdc59e0d07d8a5d6162dd265740630d9268b
5769990f534b9e77b10af7b86276d41673e4e5e81ee2be5768f838e838299cff
e7236fe777e772afa5fe027e6013318ae8724059ee3d05101771d4528e7fc5b6
1d411c7bc92cb31171c0f02d34491ce6ee96eed6181e5cb075092209fdd60733
667ade680488ead36e7e6cd112f953212c964c0dcbef2fe88923811df818e161
1730345fea7a9812b05c73cc2fe4791597f87d7ed40018c127c94f7066173353
aa0d7a869139a6e9e4706324b519e9571241367507559f01ad6f9ddf4687693e
b909af5762d7adef435ec0cb9afd8752d171952dc796d9a7269d2b1838e31225
9fed1695a089e3f2a246b6f9f23f096deaab55b31e9a133db47dbdd83ca4f126
ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415
4d32e2790a7a84c1cf62be213293d84087c4fa7cb53431da4a25d805f1827d12
6262a2af64ffe825409bcc421ee49d5059c119f31e1aecadeb54224d732b6f66
03b39b5ae27efd95eb42ff9fea9a9fbaf6a381d5a7c8cc34d12be9d6b06248c1
4707037ad06f9050346dfc8046cbd3d55c93a16fa346d367caeb56068cdf0329
3d79bf5d780b6770babf2f2cba5549a01992d4e77f797292e2f4a3ecd668379c
56dc031aa91579dc52c287554375c2cbea9aa02601ec4a50ecb3ad7af014dead
SH256 hash:
ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415
MD5 hash:
685cf5c7b1f587dfe9b8a7cc8df2e4fa
SHA1 hash:
313a276fb05075a864c6d8300417eaafc909a2eb
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/fc91081b-ab6e-4966-811c-e21b5704fc2b/
Malware family:
AgentTesla
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca8157919b90/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/ca8157919b90d7a631653dacf8e1bf9e9f7330e4afedb2d0fb9154e405a8b415

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:AgentTeslaV2
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Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTeslaV3
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AutoIt
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Author:Jean-Philippe Teissier / @Jipe_
Description:AutoIT packer
Rule name:AutoIT_Compiled
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Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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
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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
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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_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:MALWARE_Win_AgentTeslaV2
Create hunting rule
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:NETexecutableMicrosoft
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:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

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/474928/

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