MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f
SHA3-384 hash: 1b504503dfef68d74f2742a8d44781d99f248a8b3bd2983ef6752c0da6069119f4960723723c11e6b762d474525b14e4
SHA1 hash: c5db1d80b85996ee02e1854a3fa0f59940489cb4
MD5 hash: 49cb8c8eac6e50d97623f6f90bc1c590
humanhash: helium-oranges-wolfram-xray
File name:Fa5678900987678900.exe
Download: download sample
Signature a310Logger
Create hunting rule
File size:815'616 bytes
First seen:2025-11-04 14:20:47 UTC
Last seen:2025-11-10 09:00:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ef471c0edf1877cd5a881a6a8bf647b9 (83 x Formbook, 33 x Loki, 31 x Loda)
ssdeep 12288:POv5jKhsfoPA+yeVKUCUxP4C902bdRtJJPixfudbC6SlvS22RX4L+A9R9FMI/U/H:Pq5TfcdHj4fmb3g5huX4Lz1MI/nbYek
TLSH T19E0523D44898C862FB103774E03ADEA01ED47871CDD9379D57A9D0AA38B23835592FAF
TrID 39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6)
38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
7.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.9% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter threatcat_ch
Tags:a310logger exe UPX
File size (compressed) :815'616 bytes
File size (de-compressed) :1'300'992 bytes
Format:win32/pe
Unpacked file: abd484fdf1b900cb436400c131afa3831c919054a9ecd2a5f0a72e02c2efb65d

Intelligence

File Origin
# of uploads :
2
# of downloads :
96
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Fa5678900987678900.exe
Verdict:
Malicious activity
Analysis date:
2025-11-04 14:21:32 UTC
Tags:
auto-startup
Link:
https://app.any.run/tasks/4c0e4a3d-73b2-45e8-bb29-d0eae592a26c

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/35299/
Detection(s):
SecuriteInfo.com.W32.Trojan.VORE-2106.1542.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690a0bda9942f1282ecbf439
Tags:
autorun spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Reading critical registry keys
DNS request
Connection attempt
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit compiled-script installer-heuristic microsoft_visual_cc packed packed packed upx
Link:
https://www.filescan.io/uploads/690a0c1585b61a93a73446f6/reports/d32b2243-15c9-40e7-95f6-51f610b79895/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-04T09:11:00Z UTC
Last seen:
2025-11-05T12:41:00Z UTC
Hits:
~1000
Detections:
Trojan-Dropper.Win32.Scrop.anpq Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.DarkCloud.sb Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb Trojan.MSIL.Donut.sb Trojan-PSW.Win32.Stealer.sb
Link:
https://opentip.kaspersky.com/a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8091be6d-ad96-4375-a87d-198e03c34566
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1807792
Signature
Binary is likely a compiled AutoIt script file
Drops VBS files to the startup folder
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected DarkCloud
Yara detected Generic Dropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1807792 Sample: Fa5678900987678900.exe Startdate: 04/11/2025 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected DarkCloud 2->42 44 5 other signatures 2->44 8 Fa5678900987678900.exe 6 2->8         started        12 wscript.exe 1 2->12         started        process3 file4 34 C:\Users\user\AppData\Local\...\Hezron.exe, PE32 8->34 dropped 52 Binary is likely a compiled AutoIt script file 8->52 14 Hezron.exe 3 8->14         started        54 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->54 18 Hezron.exe 2 12->18         started        signatures5 process6 file7 36 C:\Users\user\AppData\Roaming\...\Hezron.vbs, data 14->36 dropped 62 Multi AV Scanner detection for dropped file 14->62 64 Binary is likely a compiled AutoIt script file 14->64 66 Drops VBS files to the startup folder 14->66 68 Switches to a custom stack to bypass stack traces 14->68 20 Hezron.exe 2 14->20         started        23 svchost.exe 14->23         started        25 Hezron.exe 2 18->25         started        27 svchost.exe 18->27         started        signatures8 process9 signatures10 29 svchost.exe 3 20->29         started        46 Binary is likely a compiled AutoIt script file 25->46 48 Writes to foreign memory regions 25->48 50 Maps a DLL or memory area into another process 25->50 32 svchost.exe 25->32         started        process11 signatures12 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 32->56 58 Tries to steal Mail credentials (via file / registry access) 32->58 60 Tries to harvest and steal browser information (history, passwords, etc) 32->60
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f
Verdict:
Malware
YARA:
5 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/49cb8c8eac6e50d97623f6f90bc1c590
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-11-04 14:21:55 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
28 of 37 (75.68%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=udbhoezjjlunczx7czdkqzatwai57rhfib7hsuoasg74idumnq7q._file
Verdict:
malicious
Label(s):
autoit
Create hunting rule
darkcloudstealer
Create hunting rule
Similar samples:
error
a310Logger
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery stealer upx
Link:
https://tria.ge/reports/251104-rnxq6stpev/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Drops startup file
Executes dropped EXE
DarkCloud
Darkcloud family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d0104ab4-55a7-4edc-9e12-b6791b50a1db
Unpacked files
SH256 hash:
a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f
MD5 hash:
49cb8c8eac6e50d97623f6f90bc1c590
SHA1 hash:
c5db1d80b85996ee02e1854a3fa0f59940489cb4
Link:
https://www.unpac.me/results/be3a13b9-727e-443c-8adc-af5c2055cefb/
SH256 hash:
f959768d48dc7f2477b738ece62186887724653d83e74edb0b29c01958d29aba
MD5 hash:
10f45e1b3d166378d1102f1b56bff44e
SHA1 hash:
42b5974fb5b404d53e606643313a71101f969c01
Detections:
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/be3a13b9-727e-443c-8adc-af5c2055cefb/
Parent samples :
a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f
abd484fdf1b900cb436400c131afa3831c919054a9ecd2a5f0a72e02c2efb65d
SH256 hash:
535929f3b93d861c66be012cb9f12ad4db6da158410dfd8e5b0f3a5d7e83d9fe
MD5 hash:
7e3310fe895c9085f4d6177a1df403f5
SHA1 hash:
7a3014947fa5532831a6bf40ce3c3340c5267024
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/be3a13b9-727e-443c-8adc-af5c2055cefb/
SH256 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Link:
https://www.unpac.me/results/be3a13b9-727e-443c-8adc-af5c2055cefb/
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a0c27713294a/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/a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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: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: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:upx_largefile
Create hunting rule
Author:k3nr9
Rule name:Windows_Trojan_DarkCloud_9905abce
Create hunting rule
Author:Elastic Security
Rule name:YahLover
Create hunting rule
Author:Kevin Falcoz
Description:YahLover

File information

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

Malspam

a310Logger

Executable exe a0c27713294ae8d166ff1646a86413b011dfc4e5407e7951c091bfc40e8c6c3f

(this sample)

a310Logger

Executable exe abd484fdf1b900cb436400c131afa3831c919054a9ecd2a5f0a72e02c2efb65d

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35299/
  
Dropping
SHA256 abd484fdf1b900cb436400c131afa3831c919054a9ecd2a5f0a72e02c2efb65d
  
Dropping
MD5 3e1d14b8eba342f47d1088e6d41aa6bf

Comments