MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034
SHA3-384 hash: 0bcb84dab418ac08db8a816edde44ec4f8479886c386b1b5bac7ce527e25ad1838294c3aa67c77cef192e1873c939663
SHA1 hash: 3311280c7ec6c2d35129bb38a80a0368f0a3b007
MD5 hash: 4e208980ebfae46c3b40b5166558b906
humanhash: three-william-zebra-three
File name:rFacturacomercialBL________xlxs.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:231'936 bytes
First seen:2024-01-23 17:34:35 UTC
Last seen:2024-01-23 19:38:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:6kybYVUKgy0fbnjGVXxtmxMaPpm3Ai+e8aNn:vDVUKCfXGVaxFPpve8y
TLSH T1EC34E0417A978A21D54C95B3C1CF052403E29BC576B3FB9ABD9C33AE49432E37C85E4A
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) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
310
Origin country :
BR BR
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/472552/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1293.11998.3544.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade net_reactor obfuscated packed packed
Link:
https://www.filescan.io/uploads/65aff8cafc0458d7ffd75b4a/reports/d052f653-1f4c-44a4-9c44-3b07684bb413/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034
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/e1eabd35-4982-42f2-b875-20d59d21217a
Result
Threat name:
AgentTesla, Discord Token Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1379752
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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 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 Discord Token Stealer
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-01-22 22:30:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uoosh6uw7vqtf5n3h4ifldcycwcpsv5n4e5j2p25tjwedymqoa2a._file
Verdict:
malicious
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240123-v5z5eadegm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Malware Config
C2 Extraction:
https://discord.com/api/webhooks/1195357500636147762/wTcRg3fQF-X958tQhh_GUJFHQMIaKcScI699hXJZD2rma64AWMXB3KbXiRQwwWAEc8-8
Unpacked files
SH256 hash:
77f893b183947fa13ee3e07bf0e53ae4d6d28748f11cbb1c226434999dd33f09
MD5 hash:
89f76a13dc4d6708eeaf4b046b4c037e
SHA1 hash:
d8086676c1faeff7bb9d2152b17be57b338feea1
Detections:
win_agent_tesla_g2
Create hunting rule
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_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/835a80d0-c963-4b2d-a178-3206a42126ca/
Parent samples :
13604fd5f18c2a1adc0a8bbab659ce37dc3e121ae792479a3a8eb92b84628beb
a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034
SH256 hash:
0c1812fc9e7c7b92abfe0cc972405de93169c549c438f4b0b8323d2ad835393d
MD5 hash:
25b9e61f35b55ac5eb6fff74bdc84f12
SHA1 hash:
89a83922440291f3b7e8a7207ff9b33ada63bf0b
Link:
https://www.unpac.me/results/835a80d0-c963-4b2d-a178-3206a42126ca/
SH256 hash:
a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034
MD5 hash:
4e208980ebfae46c3b40b5166558b906
SHA1 hash:
3311280c7ec6c2d35129bb38a80a0368f0a3b007
Link:
https://www.unpac.me/results/835a80d0-c963-4b2d-a178-3206a42126ca/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a39d23fa96fd/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/a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034

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:BAZT_B5_NOCEXInvalidStream
Create hunting rule
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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

Executable exe a39d23fa96fd6132f5bb3f10558c581584f957ade13a9d3f5d9a6c41e1907034

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/472552/

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