MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 66da637c8d8a4363d6670f7e68a73badf100fb5f6fe0229dfe5d72fd2473efef. 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: 16
| SHA256 hash: | 66da637c8d8a4363d6670f7e68a73badf100fb5f6fe0229dfe5d72fd2473efef |
|---|---|
| SHA3-384 hash: | 1de957a4c1a560f6c884c4e23ae673aef5a89d4ca04727788ec04e7981cac2e4fbea21548dde45a79ce307a23878c581 |
| SHA1 hash: | 6ca9300a9d385514eb748874462b5ca03d1dce8f |
| MD5 hash: | 60573c27e439b8a38808b13e684779be |
| humanhash: | mars-network-ink-lithium |
| File name: | PO#240145.bat |
| Download: | download sample |
| Signature | a310Logger |
| File size: | 917'000 bytes |
| First seen: | 2025-08-03 20:32:06 UTC |
| Last seen: | 2025-08-11 06:19:10 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 24576:1EWXh0JXygQYFqJJ98juR4BwtPPmERMmQ1:PgwJJVHN3RMmw |
| Threatray | 1'147 similar samples on MalwareBazaar |
| TLSH | T10D150160EF23E102F15453B707A1E672B7965DACA1C1C2B6BAF4EEDB759C6011F23242 |
| 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 | 4c36f2cca3dc949c (7 x SnakeKeylogger, 2 x MassLogger, 2 x a310Logger) |
| Reporter |  adrian__luca |
| Tags: | a310logger exe |
Intelligence
File Origin
# of uploads :
2
# of downloads :
33
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO#240145.bat
Verdict:
Malicious activity
Analysis date:
2025-08-03 20:40:15 UTC
Tags:
auto-sch-xml darkcloud ims-api generic upx
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
A310Logger
Verdict:
Malicious
Score:
96.5%
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
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
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
invalid-signature obfuscated packed packed packer_detected signed
Verdict:
Malicious
Labled as:
Trojan.Generic
Malware family:
KeyBase
Verdict:
Malicious
Score:
98%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable PDB Path PE (Portable Executable) SOS: 0.34 Win 32 Exe x86
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2025-08-01 06:44:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
darkcloudstealer
unc_loader_037
Similar samples:
+ 1'137 additional samples on MalwareBazaar
Result
Malware family:
darkcloud
Score:
10/10
Tags:
family:darkcloud discovery execution persistence spyware stealer
Behaviour
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
Suspicious use of SetThreadContext
Checks computer location settings
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
DarkCloud
Darkcloud family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8006348346:AAFxBP2Fxhqr42hjwj_-WYaqfhUZomjSXEg/sendMessage?chat_id=6311012313
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
66da637c8d8a4363d6670f7e68a73badf100fb5f6fe0229dfe5d72fd2473efef
MD5 hash:
60573c27e439b8a38808b13e684779be
SHA1 hash:
6ca9300a9d385514eb748874462b5ca03d1dce8f
SH256 hash:
2e45d7cdbb842509ad77589462a3fd407c775917f545db90f0db73d9d4dea816
MD5 hash:
59218d1d61d20696d4ede41c77760a0a
SHA1 hash:
54bf0db6664cecbbe9528f038bb7116083cc9ad2
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
967146c82ece78864f1b9fc82ed6d5f4022813c1530e7b5cfde0eddee5ce0305
MD5 hash:
034bc9b16ef9e131e34454cd52685397
SHA1 hash:
af31017ff5a6a0391daf989ea55f8c1fb7fd902f
SH256 hash:
2b82b9b6d81e9c4b089f4e349ad0c2d0897e29f1781d40c5ee42add4ef5f8201
MD5 hash:
704392c897cff5fa3070217e07aff116
SHA1 hash:
e55f2ed2eba61bccd7bac22eede3748d039ca211
Detections:
darkcloudstealer
INDICATOR_SUSPICIOUS_Binary_References_Browsers
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
INDICATOR_SUSPICIOUS_EXE_CC_Regex
MALWARE_Win_A310Logger
MALWARE_Win_DarkCloud
SH256 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables signed with stolen, revoked or invalid certificates |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
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
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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