MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fa5b6a7b46a6a3baaa71d43f152d2f390848f73e35d0a7c691a886b16c2e92de. 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: 19
| SHA256 hash: | fa5b6a7b46a6a3baaa71d43f152d2f390848f73e35d0a7c691a886b16c2e92de |
|---|---|
| SHA3-384 hash: | aa28d190f68110dbf98d7a9833efaf45ba90f2573f07d3e1b77347f9e85e5f6bbdc88458e14cfc226d4802bc6363d5dc |
| SHA1 hash: | 6188cd80b7612e192feaad339046dff0aa48e356 |
| MD5 hash: | 08b2278ca6f46f5daa671680786b7265 |
| humanhash: | floor-california-august-ack |
| File name: | FD88776456789009000.exe |
| Download: | download sample |
| Signature | a310Logger |
| File size: | 857'600 bytes |
| First seen: | 2025-12-12 08:46:35 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 21371b611d91188d602926b15db6bd48 (77 x Formbook, 64 x AgentTesla, 32 x SnakeKeylogger) |
| ssdeep | 24576:af+iN57Gtene352HTDHwpm1DAjVZ/rMRW2HUzo4F:0LXKtene35wTDHwphj7QdH |
| Threatray | 4'363 similar samples on MalwareBazaar |
| TLSH | T1DA052396ABE16D31C566B331C432CC640B7879618D49637FC37CE4676830383EA7AA9C |
| 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 |  lowmal3 |
| Tags: | a310logger exe UPX |
UPX packed
This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.
| File size (compressed) : | 857'600 bytes |
|---|---|
| File size (de-compressed) : | 1'363'968 bytes |
| Format: | win32/pe |
| Unpacked file: | 47388baca1eb16e75735cacc0143674a2cf8d4048fde5acd518d52cd64a7ce68 |
Intelligence
File Origin
# of uploads :
1
# of downloads :
110
Origin country :
DEVendor Threat Intelligence
Malware configuration found for:
AutoIt
PEPacker
Details
AutoIt
extracted scripts and files
PEPacker
a UPX version number and an unpacked binary
Malware family:
n/a
ID:
1
File name:
_fa5b6a7b46a6a3baaa71d43f152d2f390848f73e35d0a7c691a886b16c2e92de.exe
Verdict:
Malicious activity
Analysis date:
2025-12-12 08:49:15 UTC
Tags:
auto-startup
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DarkCloud
Verdict:
Malicious
Score:
94.9%
Tags:
autorun spawn hype
Verdict:
Unknown
Threat level:
2.5/10
Confidence:
100%
Tags:
autoit compiled-script installer-heuristic microsoft_visual_cc packed packed packed upx
Verdict:
Malicious
Labled as:
Trojan/AU3.Loader
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-12T02:24:00Z UTC
Last seen:
2025-12-14T04:07:00Z UTC
Hits:
~100
Detections:
Trojan-Dropper.Win32.Scrop.apgy Trojan.Win32.Auzenpak.sb PDM:Trojan.Win32.Generic Trojan-PSW.Win32.DarkCloud.sb Trojan.Win32.Zenpak.sb Trojan.Win32.Strab.sb VHO:Trojan-Dropper.Win32.Scrop.apgz Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.Stealer.sb HackTool.ReconScan.TCP.ServerRequest
Verdict:
Malicious
Result
Threat name:
DarkCloud
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Binary is likely a compiled AutoIt script file
Drops VBS files to the startup folder
Found malware configuration
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
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
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)
Unusual module load detection (module proxying)
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:
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
Malware
YARA:
5 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Verdict:
Malicious
Threat:
VHO:Trojan-Dropper.Win32.Scrop
Threat name:
Win32.Trojan.ShellcodeCrypter
Status:
Malicious
First seen:
2025-12-12 05:20:20 UTC
File Type:
PE (Exe)
Extracted files:
51
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
darkcloudstealer
Similar samples:
+ 4'353 additional samples on MalwareBazaar
Result
Malware family:
darkcloud
Score:
10/10
Tags:
family:darkcloud discovery stealer upx
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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:
DarkCloud
YARA:
n/a
Unpacked files
SH256 hash:
fa5b6a7b46a6a3baaa71d43f152d2f390848f73e35d0a7c691a886b16c2e92de
MD5 hash:
08b2278ca6f46f5daa671680786b7265
SHA1 hash:
6188cd80b7612e192feaad339046dff0aa48e356
SH256 hash:
2da201d78b7898b2018c33dcba7ffb2e48e0bafc011d33c316582c1dad0bd12b
MD5 hash:
556b808f63dff8e2d85910832e920e7a
SHA1 hash:
6402bb6669ef435846163e0bd60243fee33a1704
Detections:
darkcloudstealer
INDICATOR_SUSPICIOUS_Binary_References_Browsers
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
MALWARE_Win_A310Logger
MALWARE_Win_DarkCloud
SH256 hash:
51423230bfceb656ac2aee62bd01e3fb7ed7785a5361f4545eec592578e51af4
MD5 hash:
05e14c4fa6c462806f1348e3a7e0f66e
SHA1 hash:
f2ed558bcd17af0a0c098122f2405fbfcd8543b0
Detections:
AutoIT_Compiled
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.
Threat name:
Malicious File
Score:
0.94
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: | pe_detect_tls_callbacks |
|---|
| 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: | 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: | upx_largefile |
|---|---|
| Author: | k3nr9 |
| 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
Delivery method
Distributed via e-mail attachment
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