MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 99ad2350970b462018fed5a0912ba5bd73976a4058d7f96596f08851b823b025. 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
Worm.m0yv
Vendor detections: 18
| SHA256 hash: | 99ad2350970b462018fed5a0912ba5bd73976a4058d7f96596f08851b823b025 |
|---|---|
| SHA3-384 hash: | a41aa4a0cef89a6a9beea2382501af59eecc6866af50635ec8f1fa5f1698868ab1d7074ec928d64bce06c86b55688c15 |
| SHA1 hash: | 024ebe69faf6e5818b38d65c3f41571adad27542 |
| MD5 hash: | 494a0eedfb06428108d6b727439e87bc |
| humanhash: | rugby-delaware-texas-pluto |
| File name: | 99ad2350970b462018fed5a0912ba5bd73976a4058d7f96596f08851b823b025 |
| Download: | download sample |
| Signature | Worm.m0yv |
| File size: | 2'897'408 bytes |
| First seen: | 2025-10-10 06:45:06 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | dbbb6822523ce99b85fcce1cbdf253e4 (1 x AgentTesla, 1 x Worm.m0yv) |
| ssdeep | 49152:z0A8b3WzXvmkyKqUPDHn+6Nj1rW9c2cpIliKDmg27RnWGj:5uYE01HFKD527BWG |
| Threatray | 150 similar samples on MalwareBazaar |
| TLSH | T1C2D5CF19E39806B8D527DA38CA519333E6B078565361D58F0B9DEA592F33E908F3F312 |
| TrID | 48.7% (.EXE) Win64 Executable (generic) (10522/11/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1) |
| Magika | pebin |
| Reporter |  adrian__luca |
| Tags: | exe Worm.m0yv |
Intelligence
File Origin
# of uploads :
1
# of downloads :
71
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_99ad2350970b462018fed5a0912ba5bd73976a4058d7f96596f08851b823b025.exe
Verdict:
Malicious activity
Analysis date:
2025-10-10 07:28:22 UTC
Tags:
m0yv auto-startup
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
A310Logger
Detection(s):
Verdict:
Malicious
Score:
96.5%
Tags:
autorun expiro
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Modifying a system executable file
Launching a process
Sending a custom TCP request
Enabling autorun for a service
Infecting executable files
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
crypto expiro fingerprint hacktool microsoft_visual_cc obfuscated packed packed packer_detected virus
Verdict:
Malicious
Labled as:
Win64.Expiro.Generic
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-09-15T10:53:00Z UTC
Last seen:
2025-10-12T03:45:00Z UTC
Hits:
~1000
Detections:
Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.DarkCloud.sb Trojan-PSW.Win32.Agent.sba Trojan-Banker.Win32.Express.sb HEUR:Virus.Win32.Generic HEUR:Trojan.Win64.Kryplod.pef HEUR:Trojan.Win32.Waldek.gen Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Pycoon.sb Virus.Win64.Moiva.a Trojan.Win64.Kryplod.sb HEUR:Trojan.Win64.Zenpak.pef Virus.Win32.Moiva.a
Malware family:
DarkCloud
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Threat name:
Win64.Virus.Expiro
Status:
Malicious
First seen:
2025-09-15 15:41:44 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
29 of 37 (78.38%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
expiro
darkcloudstealer
Similar samples:
+ 140 additional samples on MalwareBazaar
Result
Malware family:
darkcloud
Score:
10/10
Tags:
family:darkcloud ransomware spyware stealer
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Enumerates connected drives
Drops startup file
Executes dropped EXE
Reads user/profile data of web browsers
DarkCloud
Darkcloud family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
99ad2350970b462018fed5a0912ba5bd73976a4058d7f96596f08851b823b025
MD5 hash:
494a0eedfb06428108d6b727439e87bc
SHA1 hash:
024ebe69faf6e5818b38d65c3f41571adad27542
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:
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: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__MemoryWorkingSet |
|---|---|
| Author: | Fernando Mercês |
| Description: | Anti-debug process memory working set size check |
| Reference: | http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/ |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 constants |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | vmdetect |
|---|---|
| Author: | nex |
| Description: | Possibly employs anti-virtualization techniques |
| Rule name: | Windows_Generic_Threat_ebf62328 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_m0yv_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.m0yv. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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