MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 da288a72584f8755e6f13dfb2dde61da7246fa615fd5399d184209fe2b6e6b79. 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
Expiro
Vendor detections: 15
| SHA256 hash: | da288a72584f8755e6f13dfb2dde61da7246fa615fd5399d184209fe2b6e6b79 |
|---|---|
| SHA3-384 hash: | fe5c6bd911b03bf08909d21c5db2643c221b0423c90654803823924fb154313dc82df7f6af4729de2d16e0f1f0b6fc9f |
| SHA1 hash: | 92993fee6664e8085d38643db9fa91eb9d5fcc9a |
| MD5 hash: | 3b54921c91036af15ca283711e3301b8 |
| humanhash: | south-network-maine-wyoming |
| File name: | server.exe |
| Download: | download sample |
| Signature | Expiro |
| File size: | 1'669'632 bytes |
| First seen: | 2025-10-21 17:21:58 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e6ec236ca3c349de850e1a33d65dc13c (1 x Expiro) |
| ssdeep | 12288:+QO2lggdRJNTpWSgN/wwRN0UL0G/TVOo3HC75nSE33b9YvFHa:VlFndCN/j2GLl3iFSE33b9f |
| Threatray | 251 similar samples on MalwareBazaar |
| TLSH | T12B751265B5D1E471E5BB463506ACDFF0AA29FDA09E308C97538406BF0B78AD0C932877 |
| TrID | 45.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.4% (.EXE) Win64 Executable (generic) (10522/11/4) 9.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.4% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.6% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  unseendev0 |
| Tags: | exe Expiro |
Intelligence
File Origin
# of uploads :
1
# of downloads :
104
Origin country :
PLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_da288a72584f8755e6f13dfb2dde61da7246fa615fd5399d184209fe2b6e6b79.exe
Verdict:
Malicious activity
Analysis date:
2025-10-21 17:23:48 UTC
Tags:
m0yv sinkhole
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.9%
Tags:
emotet cobalt
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
2.5/10
Confidence:
100%
Tags:
microsoft_visual_cc obfuscated
Verdict:
Malicious
Labled as:
Expiro.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-21T14:31:00Z UTC
Last seen:
2025-10-23T15:32:00Z UTC
Hits:
~10
Detections:
Trojan.Win64.Kryplod.sb Trojan.Win32.Shellcode.sb Trojan.Win32.Inject.sba HEUR:Virus.Win32.Generic HEUR:Trojan.Win64.Zenpak.pef HEUR:Trojan.Win64.Kryplod.pef Virus.Win64.Moiva.a Virus.Win32.Moiva.a
Malware family:
Expiro
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 32 Exe x86
Verdict:
Malicious
Threat:
Family.DONUTLOADER
Threat name:
Win32.Virus.Expiro
Status:
Malicious
First seen:
2025-10-21 17:22:35 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
expiro
Similar samples:
+ 241 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Score:
10/10
Tags:
family:donutloader discovery loader ransomware spyware stealer upx
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
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
UPX packed file
Enumerates connected drives
Executes dropped EXE
Reads user/profile data of web browsers
Detects DonutLoader
DonutLoader
Donutloader family
Unpacked files
SH256 hash:
da288a72584f8755e6f13dfb2dde61da7246fa615fd5399d184209fe2b6e6b79
MD5 hash:
3b54921c91036af15ca283711e3301b8
SHA1 hash:
92993fee6664e8085d38643db9fa91eb9d5fcc9a
Malware family:
DonutLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Expiro
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: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| 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: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | GenericGh0st |
|---|---|
| Author: | Still |
| 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: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 constants |
| Rule name: | UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser |
|---|---|
| Author: | malware-lu |
| Rule name: | upx_largefile |
|---|---|
| Author: | k3nr9 |
| Rule name: | vmdetect |
|---|---|
| Author: | nex |
| Description: | Possibly employs anti-virtualization techniques |
| Rule name: | Windows_Generic_Threat_ebf62328 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Windows_Trojan_Donutloader_f40e3759 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Windows_Trojan_Gh0st_9e4bb0ce |
|---|---|
| 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.
Delivery method
Distributed via drive-by
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