MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b
SHA3-384 hash: eb4ca1f32675a37fd5fd4d8882a4d4b5c3d0cb0f2f2f9552ca1f09658b999619f71e444a4974acf484c6e6085193dd80
SHA1 hash: 8cc9ebfff0497447a894849212dc06ab134b3764
MD5 hash: 3af8fb2ad0e41986af330368d9e302d1
humanhash: alaska-single-foxtrot-item
File name:Product Inquiry.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:719'872 bytes
First seen:2024-05-16 08:49:29 UTC
Last seen:2024-05-16 09:36:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:O0pei36RSI/ksZ3o96weWDLpKHzotBDj100Kk2dH/nf84882PhaPXkUAVHILzrX:Bpp36oI/3wrHpKHEH9iH848BPh7UeHIb
TLSH T15CE4220873BD8534CA6C97F360F668125FBB226714C1E74BF8D842DA4236551FF826AB
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 0074696971796400 (7 x AgentTesla, 6 x Formbook, 3 x Loki)
Reporter TeamDreier
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
355
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b.exe
Verdict:
Malicious activity
Analysis date:
2024-05-16 08:55:18 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/44cbb5e9-c4e0-4878-9698-79d5a45cb701

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.9.27548.12890.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b
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/bd23e251-3456-41f5-a025-ba0885f57769
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1442503
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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 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)
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/a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-05-16 05:33:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
16 of 23 (69.57%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=utmjddjxoozzjfnb5qp6assw7udsob7wjmmo4itrgzmc43sb5wnq._file
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240516-krk38adb98/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
AgentTesla
Unpacked files
SH256 hash:
a13c3bdf634477fa29c8364adb717f0c3b08967f2ef94d3aac36736231026a1a
MD5 hash:
2bafe3a29094a33403b83b3dbe7369f8
SHA1 hash:
ebeff033d50a05a1e401cf7bf9309ad392e5b3cd
Link:
https://www.unpac.me/results/d6d58a95-cc0a-4566-b4cb-3601f82de227/
SH256 hash:
879e33e649cab0d4b515915bab1e5f4ff26f4dd8b83817a100b9f581099c07e8
MD5 hash:
c3bf702f4704fec39a4835988d25de9a
SHA1 hash:
e71457ba4398e7fcb740624fd419f08f15d17664
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
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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
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/d6d58a95-cc0a-4566-b4cb-3601f82de227/
Parent samples :
54ba8aefb1c4282473a11a5d4d67e6eabe0ba4b7fd8dd4c6e143d42048d6db2a
a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b
SH256 hash:
41c04dbf5353fc03e7ecfb169bf3647b427f96c6d2966d80e715c0820e587cc2
MD5 hash:
265b3c453b1a513194aeafc3f9b408c5
SHA1 hash:
c6a7e9818701b8a8c11628708e58ee85594ebecd
Link:
https://www.unpac.me/results/d6d58a95-cc0a-4566-b4cb-3601f82de227/
SH256 hash:
f540e8d603962027b3a1f8b86d035281bfbdd3a05a621ead255825bc2082632a
MD5 hash:
d172f59251b97b415b621d302e1be2b7
SHA1 hash:
b1534e603749c901b5ac185f20e281f6be7fa908
Link:
https://www.unpac.me/results/d6d58a95-cc0a-4566-b4cb-3601f82de227/
SH256 hash:
a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b
MD5 hash:
3af8fb2ad0e41986af330368d9e302d1
SHA1 hash:
8cc9ebfff0497447a894849212dc06ab134b3764
Link:
https://www.unpac.me/results/d6d58a95-cc0a-4566-b4cb-3601f82de227/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4d8918d3773/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/a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b

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:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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
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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_imphash
Create hunting rule
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 a4d8918d3773b39495a1ec1fe04a56fd072707f64b18ee227136582e6e41ed9b

(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

Comments