MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536. 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: 17


Intelligence 17 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536
SHA3-384 hash: d8455dedd11c88d0bd57f69b9336980b85e5f8db180a0e5cbc70a1f411d8245ccbde4c7da6a3feaba320c0001705f526
SHA1 hash: c0f5685662d1191824c6772e2a2cdd6745c401e7
MD5 hash: f32b86ecf57381f21b61da2767f3c149
humanhash: arizona-uniform-east-football
File name:RFQ MT-764439977.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:638'976 bytes
First seen:2023-10-30 15:16:09 UTC
Last seen:2023-10-30 16:50:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:28s69yqL/IjTRb397BfzuIt0WTDiG1uQ6f2w/FA6W:Q6XTIfVvfzuIpPiaVE2w/FA6
Threatray 993 similar samples on MalwareBazaar
TLSH T1EED423927EED1B59DBB869FA4A71024053F7161788E0DB4D2DC532CD02A3F281BD2B97
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c4c6a2202e223684 (12 x AgentTesla, 8 x Formbook, 2 x Loki)
Reporter cocaman
Tags:AgentTesla exe RFQ

Intelligence

File Origin
# of uploads :
3
# of downloads :
341
Origin country :
CH CH
Vendor Threat Intelligence
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/457129/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.3016.8760.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/653fc8eea8078613bf206f67/reports/f5970792-6705-4f20-8e1e-345730b77c09/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536
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/efe4e08f-a8f6-4119-af9c-3cbef691646a
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1334342
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
Initial sample is a PE file and has a suspicious name
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 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 AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-10-30 13:53:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xbetr4tp64e2fq54juhji3rydeu7jcwepqojix7vmhyqulkkou3a._file
Verdict:
malicious
Similar samples:
50cf7c8e4c8f102dabb270e61cd8ad3e2e9492d48ce45a9909ea78eb903aae49
AgentTesla
6959e3ef6a767387f3ed86bf448fb8228a919dd36f9b046e8bc1219600540737
AgentTesla
984b47239030d5b11269937dc295c51301d012911b89a50634a32a485638b8a7
AgentTesla
b4767cd4df0a02cd80c4a2ee02aab7ba8f397b7b4ab82be6b9a7da018057e65e
AgentTesla
b52b7112d865eff7a8b7620b5b735b356f9eb8a789b14afcd66be1760e4270db
AgentTesla
bef157a5652da00c4e51f79e8a96bd0017216ddec319309074338c2dcf3dca8a
AgentTesla
ca31477651e5f566affdc7426300bbdfecef8ca2c38803fce93337ec84b11037
AgentTesla
cb42b7fe8e4b91d233ed1755f6ac5e83d6d2d44f1320a55c88d034cf566f658d
AgentTesla
ec2271f3c4ca253b780325c5b0486672f7f4eb8dd9c355501103aa87f0c5f9f4
AgentTesla
+ 983 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/231030-sn1nhaff96/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/911bff99-3e97-43f7-b0b5-896f829af47c/
SH256 hash:
44ed0060eab08595d2b4ad0626e5271728b42de5e5e88cc92428adc92dd79605
MD5 hash:
10212ba46bfc4a8b427083c7d3099161
SHA1 hash:
7385ec7da4970120063845f90a24d9253e9ac1c2
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/911bff99-3e97-43f7-b0b5-896f829af47c/
Parent samples :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 hash:
528e7090e12ee08dcc51ea43ed41dd9c8759bc26309673b7beca1f3c66a81e3c
MD5 hash:
e77089f5d789a55c5ca5824ede80f62c
SHA1 hash:
482dae965d650e5c89696feaec6fd3d24067e61b
Link:
https://www.unpac.me/results/911bff99-3e97-43f7-b0b5-896f829af47c/
SH256 hash:
ba05154fcdf5647edce7ad83c696b919784b6302473bd457486cc21504b8f729
MD5 hash:
80148d85ca239bf6c340c9b2567321f5
SHA1 hash:
1a113fe9486d7bc1844c91ed23176c722876ca2e
Link:
https://www.unpac.me/results/911bff99-3e97-43f7-b0b5-896f829af47c/
SH256 hash:
b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536
MD5 hash:
f32b86ecf57381f21b61da2767f3c149
SHA1 hash:
c0f5685662d1191824c6772e2a2cdd6745c401e7
Link:
https://www.unpac.me/results/911bff99-3e97-43f7-b0b5-896f829af47c/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b84938f26ff7/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/b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536

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

File information

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

Malspam

AgentTesla

r00 29540ce631e27a5c93ca8db2275df800424030a2977fae1f10c4035b6747877f

AgentTesla

Executable exe b84938f26ff709a2c3bc4d0e946e381929f48ac47c1c945ff561f10a2d4a7536

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 29540ce631e27a5c93ca8db2275df800424030a2977fae1f10c4035b6747877f
Cape
Cape
https://www.capesandbox.com/analysis/457129/
  
Dropped by
MD5 c70b43fb39231f0627e036f89d1fad19

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