MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0256620e6fca3aed48fb36d3d7d798e5d0f790bdfaf93e56a4b9471ade8f7e7. 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: 18


Intelligence 18 IOCs YARA 19 File information Comments

SHA256 hash: a0256620e6fca3aed48fb36d3d7d798e5d0f790bdfaf93e56a4b9471ade8f7e7
SHA3-384 hash: d2d2b6b7cbf54b072ca00e396e3f8cf75928b979b7ee7475d283621f2ab95d69d80a777877c913796e5f590ceba174e9
SHA1 hash: 91ae9b1f2d9a63f8873ef417a81c1b3ee9bf7742
MD5 hash: c03df73f42c3cf0633c62b518049e6d7
humanhash: steak-delta-chicken-monkey
File name:SecuriteInfo.com.Win32.RATX-gen.18729.16741
Download: download sample
Signature AgentTesla
File size:686'600 bytes
First seen:2024-04-29 04:16:10 UTC
Last seen:2024-05-08 07:36:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:40BB778QNGSyjVmrRmm1xy56gdQSrH78yCe38urnFkisI+hNZ9dD88p6Z/A2CnkR:HBBnG/Ymm1xy56rSrHIy8+jh+XPdDpe3
TLSH T1F0E4234BD3889FA4DBBF09B63DA4D4465DB7374746A0C38B5C8490CA8E6F79082DC61B
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) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 4018f9e960e20464 (19 x AgentTesla, 6 x Formbook, 2 x PureLogsStealer)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
320
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
a0256620e6fca3aed48fb36d3d7d798e5d0f790bdfaf93e56a4b9471ade8f7e7.exe
Verdict:
Malicious activity
Analysis date:
2024-04-29 04:18:23 UTC
Tags:
agenttesla stealer exfiltration

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Setting a keyboard event handler
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
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.
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Snort IDS alert for network traffic
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:
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-04-29 01:41:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 23 (86.96%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla_v4 agenttesla
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
908a1ca7a655ca67685cf5d69a693b54f1aa653d3e5e61bf2680d6e9a92b3f06
MD5 hash:
25c382acd8d90c14aacf4d5fa60917d7
SHA1 hash:
ba6441c78915351d257500ab3d148c400ff2eadb
Detections:
AgentTesla win_agent_tesla_g2
SH256 hash:
0bfb0358d9cd73716bbdd5e02dc6d9ad4ff7ce928bb149834844b4e8eb8ce74b
MD5 hash:
4b113a772f878eb4bcf3e345fbef0d6c
SHA1 hash:
21df75ac80bb07e3ee7c8d93ed756c6059a50448
SH256 hash:
7a6c10ee7e226fabb1acf82b356643949d4b7d67c45fef476acf9cb0d042ac9a
MD5 hash:
16c94cb35b6904d3c6cddf1273e2e726
SHA1 hash:
159f519d4232e013501ec21074e084fe31af7002
SH256 hash:
8213a6a34c36db37675298dcbbbb36451ddf233c1af7e8783be225d3e4c08271
MD5 hash:
a2f5dafc17432fdea2f85c9c972167ca
SHA1 hash:
004139faa5268e3fd9fcc92710d0e331d32a2d7b
SH256 hash:
a0256620e6fca3aed48fb36d3d7d798e5d0f790bdfaf93e56a4b9471ade8f7e7
MD5 hash:
c03df73f42c3cf0633c62b518049e6d7
SHA1 hash:
91ae9b1f2d9a63f8873ef417a81c1b3ee9bf7742
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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.

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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