MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b2fcc90a847949cad33044036767c182f4d351bcc0f3e7ee49b49882afbf57a9. 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
Miniduke
Vendor detections: 10
| SHA256 hash: | b2fcc90a847949cad33044036767c182f4d351bcc0f3e7ee49b49882afbf57a9 |
|---|---|
| SHA3-384 hash: | 57122b34d6e6ff316bde32414577eccabbad7b43d46bc9a2c12813646e7c0c6ea9801ff794cdce49baab9201095922ab |
| SHA1 hash: | d50934e76f978d5a6cdd2ba2a4adc03f13e1a964 |
| MD5 hash: | 7ee0429bbea7516988238ef3d761e09a |
| humanhash: | whiskey-uniform-virginia-arkansas |
| File name: | svchost.exe |
| Download: | download sample |
| Signature | Miniduke |
| File size: | 178'688 bytes |
| First seen: | 2025-11-23 09:28:47 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | edf0659abd5188c18e493cb2537cb8d9 (38 x Miniduke) |
| ssdeep | 3072:KZ/LhS0rKgHq+rFLIwgoovufDUbZMYIWJkd65Se:+/LhS0rKE/FLITo9mpIWWd0 |
| Threatray | 12 similar samples on MalwareBazaar |
| TLSH | T1DD049E3533F580B1E53316B46DF1AB729A7EBC384A71858B9BA41F5F2A346918339307 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  Hexastrike |
| Tags: | exe miniduke |
Intelligence
File Origin
# of uploads :
1
# of downloads :
17
Origin country :
IEVendor Threat Intelligence
Detection:
n/a
Gathering data
Gathering data
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 cmd cosmicduke crypto evasive explorer fingerprint keylogger locky lolbin microsoft_visual_cc miniduke zusy
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Result
Gathering data
Score:
97%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Backdoor.MiniDuke
Status:
Malicious
First seen:
2025-11-19 17:25:25 UTC
File Type:
PE (Exe)
AV detection:
30 of 36 (83.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cosmicduke
Similar samples:
+ 2 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
3/10
Tags:
discovery
Behaviour
Program crash
System Location Discovery: System Language Discovery
Verdict:
Malicious
Tags:
apt Win.Trojan.Zusy-9876296-0
YARA:
detect_apt_APT29
Unpacked files
SH256 hash:
b2fcc90a847949cad33044036767c182f4d351bcc0f3e7ee49b49882afbf57a9
MD5 hash:
7ee0429bbea7516988238ef3d761e09a
SHA1 hash:
d50934e76f978d5a6cdd2ba2a4adc03f13e1a964
Detections:
win_cosmicduke_w0
win_cosmicduke_auto
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | detect_apt_APT29 |
|---|---|
| Author: | @malgamy12 |
| Description: | detect_APT32_malware |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | win_cosmicduke_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.cosmicduke. |
| Rule name: | win_cosmicduke_w0 |
|---|---|
| Author: | @malgamy12 |
| Description: | detect cosmicduke |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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