MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7f739a509c26046509a167ac582b9aae60c9ab7c27b23af2d7aaaa234a9507fd. 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



a310Logger


Vendor detections: 20


Intelligence 20 IOCs YARA 19 File information Comments

SHA256 hash: 7f739a509c26046509a167ac582b9aae60c9ab7c27b23af2d7aaaa234a9507fd
SHA3-384 hash: 8a5ed207223ee11303a621a07e08b7505f714b8c4afa7e09b01da02289899b78dcf6a52148da0019023b5aa118a44cac
SHA1 hash: f7235ff19963248b4824e26083346b518a359b43
MD5 hash: 99eca0617fbe4bacaeef9b6b61da3f5c
humanhash: butter-ceiling-cat-speaker
File name:2874030096251616____9898.pdf.exe
Download: download sample
Signature a310Logger
File size:1'327'104 bytes
First seen:2025-10-29 07:06:42 UTC
Last seen:2025-11-06 11:29:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:7huhCgk+pfb2M/AcZox0e06iw8EYTRYBkDgZQzJXk:d1+pqM/T6x0Lwh7BkkKFXk
Threatray 19 similar samples on MalwareBazaar
TLSH T1C055E12D2BC35688D43ECB34DBB2065C07F1A65BC622D36FBA4231ECCA1A7476511B67
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter lowmal3
Tags:a310logger exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
89
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2874030096251616____9898.pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-10-29 07:11:25 UTC
Tags:
netreactor stealer evasion auto-reg

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
70%
Tags:
underscore dotnet smtp remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Stealing user critical data
Setting a single autorun event
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated obfuscated vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-28T12:44:00Z UTC
Last seen:
2025-10-31T05:19:00Z UTC
Hits:
~10000
Detections:
Trojan-Dropper.Win32.Injector.sb PDM:Trojan.Win32.Generic Backdoor.Win32.Androm Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.DarkCloud.sb Trojan-PSW.MSIL.Stealer.sb Trojan.MSIL.Inject.b VHO:Trojan-PSW.MSIL.Agent.gen HEUR:Trojan.MSIL.Inject.gen Trojan.MSIL.Inject.sb Trojan.MSIL.Inject.c HEUR:Backdoor.MSIL.XWorm.gen HackTool.ReconScan.TCP.ServerRequest
Result
Threat name:
DarkCloud, DarkTortilla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Double Extension File Execution
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected DarkCloud
Yara detected DarkTortilla Crypter
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1803728 Sample: 2874030096251616____9898.pdf.exe Startdate: 29/10/2025 Architecture: WINDOWS Score: 100 30 showip.net 2->30 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected DarkCloud 2->44 46 8 other signatures 2->46 7 2874030096251616____9898.pdf.exe 4 2->7         started        11 tauroboly.exe 3 2->11         started        13 tauroboly.exe 2 2->13         started        signatures3 process4 file5 28 C:\...\2874030096251616____9898.pdf.exe.log, ASCII 7->28 dropped 48 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->48 50 Injects a PE file into a foreign processes 7->50 15 2874030096251616____9898.pdf.exe 1 16 7->15         started        20 2874030096251616____9898.pdf.exe 7->20         started        52 Multi AV Scanner detection for dropped file 11->52 22 tauroboly.exe 12 11->22         started        24 tauroboly.exe 12 13->24         started        signatures6 process7 dnsIp8 32 showip.net 162.55.60.2, 49692, 49694, 49695 ACPCA United States 15->32 26 C:\Users\user\AppData\...\tauroboly.exe, PE32 15->26 dropped 34 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->34 36 Tries to steal Mail credentials (via file / registry access) 24->36 38 Tries to harvest and steal browser information (history, passwords, etc) 24->38 file9 signatures10
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.84 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.DarkTortilla
Status:
Malicious
First seen:
2025-10-28 17:30:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
45
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Result
Malware family:
darktortilla
Score:
  10/10
Tags:
family:darkcloud family:darktortilla crypter discovery loader persistence spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
.NET Reactor proctector
Executes dropped EXE
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
DarkCloud
Darkcloud family
Darktortilla
Darktortilla family
Detects Darktortilla crypter.
Unpacked files
SH256 hash:
7f739a509c26046509a167ac582b9aae60c9ab7c27b23af2d7aaaa234a9507fd
MD5 hash:
99eca0617fbe4bacaeef9b6b61da3f5c
SHA1 hash:
f7235ff19963248b4824e26083346b518a359b43
SH256 hash:
6dacffe6b8a540beb3230319b579f5962f874a0c6a68b266227c9b32d4933ac3
MD5 hash:
b46d6530611082695ee7eb81ed8b7743
SHA1 hash:
422e06648b205f95d59c54770b7a7bb83a74c4a5
Detections:
darkcloudstealer INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore INDICATOR_SUSPICIOUS_EXE_TelegramChatBot MALWARE_Win_A310Logger MALWARE_Win_DarkCloud
SH256 hash:
222b04688d1e2030192b188f099ecfd52bd7af6b986ac93e141a80f2766da879
MD5 hash:
c71e17acab65a4dd054c78c0481c7674
SHA1 hash:
63b0d563f15ab5b92c337ef37d741004623d0f62
SH256 hash:
e85a6b8eb1d98b78941197990aa61a9768e3c66c5c932fac71f3e9933a4dbe2a
MD5 hash:
e681645e011800fda1f7e13d33429160
SHA1 hash:
7549537f9215deb56b68e33fea2a2f142dee2dc3
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24 INDICATOR_EXE_Packed_DotNetReactor
Parent samples :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 hash:
2673d470353413edfb567ff7479395dc52824db6469520ebe8d91dbca2bccac2
MD5 hash:
e5be1fdba36d5032726313afe4c7dd63
SHA1 hash:
c65ebe77906cec3bcb5e805a327f1aa823be57ca
SH256 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Malware family:
DarkCloud
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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
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_SQLQuery_ConfidentialDataStore
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_A310Logger
Author:ditekSHen
Description:Detects A310Logger
Rule name:MALWARE_Win_DarkCloud
Author:ditekSHen
Description:Detects DarkCloud infostealer
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:ProtectSharewareV11eCompservCMS
Author:malware-lu
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:TelegramAPIMalware_PowerShell_EXE
Author:@polygonben
Description:Hunting for pwsh malware using Telegram for C2
Rule name:telegram_bot_api
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:Windows_Trojan_DarkCloud_9905abce
Author:Elastic Security

File information


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

Malspam

a310Logger

Executable exe 7f739a509c26046509a167ac582b9aae60c9ab7c27b23af2d7aaaa234a9507fd

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments