MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff. 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: 17


Intelligence 17 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
SHA3-384 hash: 7e7c9e9252040b96bbda28bfc0249c7c8893db4826c77d2de8b0d2dbb8a37dce3c7590ea5db417067b727373479056d4
SHA1 hash: b3971b8f653ca637cb56cc2bc13dafdea5939921
MD5 hash: 7cc1a18cc0cd0f88f8e7e63b2696d8c7
humanhash: purple-alanine-orange-music
File name:INV6846.copy.jpeg.exe
Download: download sample
Signature a310Logger
Create hunting rule
File size:1'183'232 bytes
First seen:2025-07-29 04:37:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:sI4w/XixgwWv92xk22+PAAuLILqSy3jYITDHgxqMGO:ow/X4WgPnqR3jYITDHkGO
Threatray 131 similar samples on MalwareBazaar
TLSH T11945122031A5CC07C98E877C19A3E17483789D992903D39EAFD8ADEFB5297554E132F2
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
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter threatcat_ch
Tags:a310logger exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
42
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV6846.copy.jpeg.exe
Verdict:
Malicious activity
Analysis date:
2025-07-29 04:40:07 UTC
Tags:
smtp darkcloud upx auto-reg
Link:
https://app.any.run/tasks/649245fb-cf28-4a05-9665-cce7f1a83f37

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
A310Logger
Create hunting rule
Link:
https://www.capesandbox.com/analysis/17470/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=688850460b4775fb2132c191
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating a file in the %AppData% subdirectories
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Launching a process
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file in the Windows subdirectories
Delayed writing of the file
Modifying a system file
Stealing user critical data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
Malware family:
KeyBase
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4aee5709-63ff-4381-8495-f3b164790c17
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1746067
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Found malware configuration
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
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)
Yara detected AntiVM3
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1746067 Sample: INV6846.copy.jpeg.exe Startdate: 29/07/2025 Architecture: WINDOWS Score: 64 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for dropped file 2->50 52 7 other signatures 2->52 9 INV6846.copy.jpeg.exe 3 2->9         started        13 OUTLOOK.EXE 73 48 2->13         started        process3 file4 34 C:\Users\user\...\INV6846.copy.jpeg.exe.log, ASCII 9->34 dropped 54 Injects a PE file into a foreign processes 9->54 15 INV6846.copy.jpeg.exe 2 12 9->15         started        19 INV6846.copy.jpeg.exe 9->19         started        signatures5 process6 file7 36 C:\Users\user\AppData\...\chrome.exe (copy), PE32 15->36 dropped 38 C:\Users\user\AppData\...\Project1.exe, PE32 15->38 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Tries to steal Mail credentials (via file / registry access) 15->42 44 Tries to harvest and steal browser information (history, passwords, etc) 15->44 21 chrome.exe 2 15->21         started        24 taskkill.exe 1 15->24         started        signatures8 process9 file10 32 C:\Program Filesbehaviorgraphoogle\...behaviorgraphoogleChrome.exe, PE32 21->32 dropped 26 GoogleChrome.exe 1 21->26         started        28 conhost.exe 24->28         started        process11 process12 30 conhost.exe 26->30         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff/
Verdict:
Malicious
Threat:
VHO:Trojan.MSIL.Taskun
Link:
https://tip.neiki.dev/file/f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-07-29 04:32:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7c5zv3freykafh6ehvugnwx5jxu2oa4ipwudxdx3jpmkdkwiyl7q._file
Verdict:
malicious
Label(s):
darkcloudstealer
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
37cd053124973d351eba289478ef51493ca8d8e73f1b3561fec7fa5f278b4c63
a310Logger
558c01cb6ab06e8be55a284b8005d334ce6bb4eb3fc7e189262c1074bc6f6fe7
a310Logger
63a03d1998b2024f980c66873113d4cbd74262cfb1b4c0768246e38928db4b64
a310Logger
7b9d010e0fe5a9696c5fb1020d8a3c9e1272e7442f4ba841c83d3b0ee001466a
a310Logger
af17093654818d4f7080f8568f48fddc25d4079888183f6d1906fd57e3eaf700
a310Logger
error
a310Logger
f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
a310Logger
+ 121 additional samples on MalwareBazaar
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud defense_evasion discovery persistence spyware stealer
Link:
https://tria.ge/reports/250729-e9j1zstq18/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
DarkCloud
Darkcloud family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e5e08dc3-c743-43c6-b76d-f83c45f2ae47
Unpacked files
SH256 hash:
f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
MD5 hash:
7cc1a18cc0cd0f88f8e7e63b2696d8c7
SHA1 hash:
b3971b8f653ca637cb56cc2bc13dafdea5939921
Link:
https://www.unpac.me/results/55b85689-209e-4e46-9dc8-b235d53adc49/
SH256 hash:
e63b704c8aa5eb5dee65533e84817579471da9205594f338a0b89ad3f4c59e31
MD5 hash:
ce1144d5a21dcde283f02c0a6fcb4511
SHA1 hash:
780d8455a967002a88d52667596c8eff334fd73a
Detections:
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_CC_Regex
Create hunting rule
MALWARE_Win_A310Logger
Create hunting rule
MALWARE_Win_DarkCloud
Create hunting rule
Link:
https://www.unpac.me/results/55b85689-209e-4e46-9dc8-b235d53adc49/
Parent samples :
f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
ab28a9c31b3ae251c2a88c963a87941a788062b5ed20b5f546ed9243322ea263
493b6a86546ac79b7647bd6f3c3523dd910e6a56e427c45197e957e268df8df2
dd2973ad690eefefe9ac0ca783447c62aa7ccfa814fa57fa00e1ae9ae51d0171
8b91d1572631d84c5f844303768824f864830722a6f67afec38d9f3f1ed25123
SH256 hash:
3416009661f4e4865fcecadc920cc128f1b4011a733a23a01a7bc151061a175f
MD5 hash:
2909eba03d705cea098446f8bcca1a0d
SHA1 hash:
c117640629e224f0d0f9f157d386560e9c7b807a
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/55b85689-209e-4e46-9dc8-b235d53adc49/
SH256 hash:
34f170e2658c38de0d1cea9c837588688e53264569961a5db02104e37f7ad1a9
MD5 hash:
3c34403b0fad514abdce12c04de97146
SHA1 hash:
d83dd6245531e1444f8256441c0d6ad597300e9f
Link:
https://www.unpac.me/results/55b85689-209e-4e46-9dc8-b235d53adc49/
SH256 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Link:
https://www.unpac.me/results/55b85689-209e-4e46-9dc8-b235d53adc49/
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f8bb9aecb126/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/f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff

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
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
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_CC_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
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_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_A310Logger
Create hunting rule
Author:ditekSHen
Description:Detects A310Logger
Rule name:MALWARE_Win_DarkCloud
Create hunting rule
Author:ditekSHen
Description:Detects DarkCloud infostealer
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:ProtectSharewareV11eCompservCMS
Create hunting rule
Author:malware-lu
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:Windows_Trojan_DarkCloud_9905abce
Create hunting rule
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 f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/17470/

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 (GUARD_CF)high

Comments