MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2
SHA3-384 hash: 8d35ea33dc5a5a3d8424b987fcc131b28dfbadcf6fd804fb5b64503f18c49e0e136f41924f4fbab7e335c1304efcd162
SHA1 hash: a22add4636b289def658bcfe493cc7466e8fb7d1
MD5 hash: 57675ec2d32e5748247750a18d0436da
humanhash: nevada-stream-nitrogen-summer
File name:Order#02923.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:907'272 bytes
First seen:2024-04-30 13:25:49 UTC
Last seen:2024-04-30 14:32:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:Y9B+8u5tuP/PuXta+LyMR4YE6jcvT0NkdhOb+ahXKD634kR:R8AbwK56N6js7haD5K0
TLSH T16115029322945E8BFC2E127254764DEE16726E3EC6B0E89C289EF0664373347321791F
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 13607332330b0bb3 (55 x AgentTesla, 16 x RedLineStealer, 13 x MassLogger)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
374
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2.exe
Verdict:
Malicious activity
Analysis date:
2024-04-30 13:29:10 UTC
Tags:
smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/4f6178e5-8ad2-441b-9ca4-e0b4833e4755

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.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
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade overlay packed
Link:
https://www.filescan.io/uploads/6630f17847bfd8641ebb2d0c/reports/ff25fbf2-7be8-47df-8c88-842a68f80ab2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2
Malware family:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/90bf321d-5721-41b7-9ef2-abcae6ce1302
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1434123
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2024-04-30 12:59:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvoe5523cjcpogo7ubzpuslpdvr6gdushhezz3locnyesxf6wlba._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240430-qphszaga3x/
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 WinSCP keys stored on the system
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:
b790db3e609a4df9f8a1df85ac0f0b7965d95faf0d5c1e4fdb8af7d3f1845cea
MD5 hash:
95cc4f422f58b5e151e7213bc47dbf6d
SHA1 hash:
b08e5c54be87bbcd7f4a0c642aa4277cd06c7013
Link:
https://www.unpac.me/results/6730fc01-6eb4-48e5-806b-ace481549e27/
SH256 hash:
7e27f7c1f9ef5fc9912efbbb27ead7834012026f89ac7eef2b6e4c8db52bedf4
MD5 hash:
6884c484cb48e53b10b2a8e0de9a5fda
SHA1 hash:
771b2b56862a733141910f08219932f6d22d133a
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/6730fc01-6eb4-48e5-806b-ace481549e27/
Parent samples :
1bbf1f04b87d99930410edea26dbb275df9944459c04039126ec2dbc29bb358d
d94605dc9ae015762fc63c3ffc0adb88c67ad5173e3ea737d2e298217da8e611
a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c
855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2
db81ed5f0c011d32cf7d940b3a3843b10215e276bc102f58f4c9917098f4d4cc
3599cd13875aebeea6d2cf9ec7aca467830f6d4c43efe5a1598a01f4128a0699
SH256 hash:
7d53b9e8ff1cf3891bd73d48dc6cbf5b86c123fe62a809ad3552c55a88cec63a
MD5 hash:
05a3367e1ef1fb324882f28c12935947
SHA1 hash:
36c3b64f3a3d2f43f320d02f5c37d1141bb3aa7f
Link:
https://www.unpac.me/results/6730fc01-6eb4-48e5-806b-ace481549e27/
SH256 hash:
0bfb0358d9cd73716bbdd5e02dc6d9ad4ff7ce928bb149834844b4e8eb8ce74b
MD5 hash:
4b113a772f878eb4bcf3e345fbef0d6c
SHA1 hash:
21df75ac80bb07e3ee7c8d93ed756c6059a50448
Link:
https://www.unpac.me/results/6730fc01-6eb4-48e5-806b-ace481549e27/
SH256 hash:
855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2
MD5 hash:
57675ec2d32e5748247750a18d0436da
SHA1 hash:
a22add4636b289def658bcfe493cc7466e8fb7d1
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/6730fc01-6eb4-48e5-806b-ace481549e27/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/855c4ef75b12/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/855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2

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
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
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Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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
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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_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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

Malspam

AgentTesla

Executable exe 855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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