MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601. 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: 21


Intelligence 21 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601
SHA3-384 hash: 809824bebacb7b90e83b370a3aaf965c844ec08db20807cd0267763055408b0684eb1fd61d923bfc16bd807d343df32c
SHA1 hash: 7323b01ccafe7147366bec75ff9cfb1255d5ada4
MD5 hash: f42c3df63b8b64131812a8c2d6c0ddd0
humanhash: winter-ten-missouri-spring
File name:Dekont20260901.exe
Download: download sample
Signature a310Logger
Create hunting rule
File size:960'000 bytes
First seen:2026-01-09 17:23:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'795 x AgentTesla, 19'692 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 24576:7LA1C5wkFR+QNehxA9iX/oB6w6/CVwrIp00aCbFqe/7P5lFsI87H:XA1fOkRhD/oBHEb6nZMe/7xX87H
Threatray 97 similar samples on MalwareBazaar
TLSH T18F15019073A5AB41E1B6ABF20571D2310BF66E8E5961E3098FEB7CDB3239F441810B53
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter abuse_ch
Tags:a310logger exe geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/ae56be9b-1b08-4589-9f08-5fc7cd2babae/
Malware family:
n/a
ID:
1
File name:
Dekont20260901.exe
Verdict:
Malicious activity
Analysis date:
2026-01-09 17:45:32 UTC
Tags:
stealer evasion telegram auto-sch-xml darkcloud auto-reg crypto-regex upx ims-api generic
Link:
https://app.any.run/tasks/668580e3-0e5f-4379-835d-7952a3a7e1ab

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DarkCloud
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48411/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=696139e29922425f92ff4eb5
Tags:
micro krypt msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/696139d730368802bb7e2a8c/reports/b162e5f4-7e97-4704-a4e9-c56434f8d841/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-09T04:59:00Z UTC
Last seen:
2026-01-10T00:54:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.TeleBot.HTTP.C&C HEUR:Trojan.MSIL.Agent.gen Trojan-PSW.Win32.DarkCloud.sb Trojan.Win32.Agent.sb Trojan.MSIL.Inject.sb HEUR:Trojan.MSIL.Taskun.sb PDM:Trojan.Win32.Generic Trojan.MSIL.Taskun.sb Trojan-PSW.Win32.Stelega.sb Trojan.MSIL.Crypt.sb HackTool.ReconScan.TCP.ServerRequest not-a-virus:PDM:AdWare.Win32.Vopak.a
Link:
https://opentip.kaspersky.com/4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601/results?tab=lookup
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8a369631-c153-4a82-a87c-02f69ef25b57
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1847536
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
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 schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AntiVM3
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1847536 Sample: Dekont20260901.exe Startdate: 09/01/2026 Architecture: WINDOWS Score: 100 79 api.telegram.org 2->79 81 showip.net 2->81 83 5 other IPs or domains 2->83 91 Suricata IDS alerts for network traffic 2->91 93 Found malware configuration 2->93 95 Malicious sample detected (through community Yara rule) 2->95 99 10 other signatures 2->99 9 Dekont20260901.exe 7 2->9         started        13 VahEkHDpUlnN.exe 5 2->13         started        15 hamdmaid.exe 2->15         started        17 2 other processes 2->17 signatures3 97 Uses the Telegram API (likely for C&C communication) 79->97 process4 dnsIp5 69 C:\Users\user\AppData\...\VahEkHDpUlnN.exe, PE32 9->69 dropped 71 C:\Users\...\VahEkHDpUlnN.exe:Zone.Identifier, ASCII 9->71 dropped 73 C:\Users\user\AppData\Local\...\tmpED06.tmp, XML 9->73 dropped 75 C:\Users\user\...\Dekont20260901.exe.log, ASCII 9->75 dropped 109 Uses schtasks.exe or at.exe to add and modify task schedules 9->109 111 Adds a directory exclusion to Windows Defender 9->111 113 Injects a PE file into a foreign processes 9->113 20 Dekont20260901.exe 1 20 9->20         started        25 powershell.exe 23 9->25         started        39 4 other processes 9->39 115 Antivirus detection for dropped file 13->115 117 Multi AV Scanner detection for dropped file 13->117 27 VahEkHDpUlnN.exe 13->27         started        29 schtasks.exe 13->29         started        31 hamdmaid.exe 15->31         started        33 schtasks.exe 15->33         started        77 127.0.0.1 unknown unknown 17->77 35 hamdmaid.exe 17->35         started        37 schtasks.exe 17->37         started        file6 signatures7 process8 dnsIp9 85 api.telegram.org 149.154.166.110, 443, 49700, 49707 TELEGRAMRU United Kingdom 20->85 87 showip.net 162.55.60.2, 49692, 49693, 49699 ACPCA United States 20->87 67 C:\Users\user\AppData\...\hamdmaid.exe, PE32 20->67 dropped 41 taskkill.exe 1 20->41         started        101 Loading BitLocker PowerShell Module 25->101 55 2 other processes 25->55 43 taskkill.exe 27->43         started        45 conhost.exe 29->45         started        47 taskkill.exe 31->47         started        49 conhost.exe 33->49         started        103 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 35->103 105 Tries to steal Mail credentials (via file / registry access) 35->105 107 Tries to harvest and steal browser information (history, passwords, etc) 35->107 51 taskkill.exe 35->51         started        53 conhost.exe 37->53         started        89 part-0013.t-0009.t-msedge.net 13.107.246.41, 443, 49697, 49708 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 39->89 57 2 other processes 39->57 file10 signatures11 process12 process13 59 conhost.exe 41->59         started        61 conhost.exe 43->61         started        63 conhost.exe 47->63         started        65 conhost.exe 51->65         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.29 Win 32 Exe x86
Link:
https://app.malva.re/file/f42c3df63b8b64131812a8c2d6c0ddd0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-01-09 07:55:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 37 (56.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmbzvq7onmyfhh2et2v5jwfftwbuaz3rtlxjloulhm5q2a5a6yaq._file
Verdict:
malicious
Label(s):
darkcloudstealer
Create hunting rule
Similar samples:
04d0203d755db0ea7ad019917e64f3cc2c7f15a87eea3d37b429cdfe633e46b0
a310Logger
34c4142c1ce499a86d75d293dc49bdbdc7f98f7d5dbe95a5947315e37a94a4c9
a310Logger
50e10bd011719d1d3c43c1b6a945462a4684399a6f64dd264e8d03f0ac92c505
a310Logger
c01020bddf0722615647d37dffb887e4110e7d20074ec1ac525ebe00a036c2e9
a310Logger
+ 87 additional samples on MalwareBazaar
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud defense_evasion discovery execution persistence spyware stealer
Link:
https://tria.ge/reports/260109-vy135abz6c/
Behaviour
Kills process with taskkill
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
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
SmartAssembly .NET packer
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
Command and Scripting Interpreter: PowerShell
DarkCloud
Darkcloud family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/678c34f3-1ea4-4561-abc8-0dceb1fd1209
Unpacked files
SH256 hash:
4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601
MD5 hash:
f42c3df63b8b64131812a8c2d6c0ddd0
SHA1 hash:
7323b01ccafe7147366bec75ff9cfb1255d5ada4
Link:
https://www.unpac.me/results/fffb1e57-5823-46ea-a7ba-4a9df96619c4/
SH256 hash:
4778b77c5c543e7bca9173becb5b811ebfff3cb35238a934664f9571c3e17a8c
MD5 hash:
3370f9b232249d2c63bfc28f181695c5
SHA1 hash:
1cbebb49fd4ebb1110eaa173fb258336dec808c8
Link:
https://www.unpac.me/results/fffb1e57-5823-46ea-a7ba-4a9df96619c4/
SH256 hash:
21880ce99609cc2fc42df9db5d769a9de9761f4f438a7c5b9299e2ba38102a37
MD5 hash:
88e11611ffefe959f0d7a1ca8bc27a26
SHA1 hash:
35bf0807f79989682d2fb6911589962efc18b4e7
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/fffb1e57-5823-46ea-a7ba-4a9df96619c4/
SH256 hash:
176cceb44bc2f1e6be38c3a2c9a9ba2074a5842f5392bbda7927b10623eb5412
MD5 hash:
59905c96d08c6adee078001271a1f175
SHA1 hash:
a802f5c08499a11a313acb1ec154f7fe6e8887b1
Detections:
darkcloudstealer
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MALWARE_Win_A310Logger
Create hunting rule
MALWARE_Win_DarkCloud
Create hunting rule
Link:
https://www.unpac.me/results/fffb1e57-5823-46ea-a7ba-4a9df96619c4/
Parent samples :
4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601
13b8455a49d494f7779ed76e3e4b00709f8280aba86707b43c574e48b3ee077b
ee5f624396dc85639884785ea5bb61c333c76d74046be44ec0bcea0eac0244c0
SH256 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Link:
https://www.unpac.me/results/fffb1e57-5823-46ea-a7ba-4a9df96619c4/
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b039ac3ee6b/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/4b039ac3ee6b30539f449eabd4d8a59d834067719aee95ba8b3b3b0d03a0f601

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_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:TelegramAPIMalware_PowerShell_EXE
Create hunting rule
Author:@polygonben
Description:Hunting for pwsh malware using Telegram for C2
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.

Cape
Cape
https://www.capesandbox.com/analysis/48411/

Comments