MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b8a9fef88b09310f03ac652bff1450b9ae3a05111b9567dab8b839de07c979b9. 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
CoinMiner
Vendor detections: 15
| SHA256 hash: | b8a9fef88b09310f03ac652bff1450b9ae3a05111b9567dab8b839de07c979b9 |
|---|---|
| SHA3-384 hash: | aa961b21094bf82a9c299f62875f892cd4f364a4ba517f0890e4abb69d9b1ca8a034ca825b8e1e9c98bc0d986b8e0a94 |
| SHA1 hash: | d411a9138f1cd50d6ac4915ec359059855daaa77 |
| MD5 hash: | 9d1b82cf89993f4d584ea67533ee9afe |
| humanhash: | papa-twenty-princess-utah |
| File name: | file |
| Download: | download sample |
| Signature | CoinMiner |
| File size: | 3'443'512 bytes |
| First seen: | 2026-01-26 18:11:09 UTC |
| Last seen: | 2026-01-27 00:18:59 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3641b918fa6fcd6b6754b75fd2065c00 (8 x CoinMiner) |
| ssdeep | 49152:pKqJodDCS6dGFlyIkwh/Fr+JdXv9NJmYofvL3mcZAKySgPCuTOe8VZfdYjzf0RwE:9oBChTQ+JhdDkL5JQ6ZfIou8Y3lhI/l |
| Threatray | 2'442 similar samples on MalwareBazaar |
| TLSH | T147F5338CFA8284B8DE7841B096992F1D9C3271554B6CDFC70BABD27039613CA19BBC5D |
| TrID | 61.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 16.6% (.EXE) Win32 Executable (generic) (4504/4/1) 7.4% (.EXE) OS/2 Executable (generic) (2029/13) 7.3% (.EXE) Generic Win/DOS Executable (2002/3) 7.3% (.EXE) DOS Executable Generic (2000/1) |
| Magika | pebin |
| Reporter |  Bitsight |
| Tags: | CoinMiner dropped-by-amadey exe fbf543 |
Intelligence
File Origin
# of uploads :
96
# of downloads :
66
Origin country :
USVendor Threat Intelligence
No detections
Malware family:
xmrig
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-01-26 18:12:00 UTC
Tags:
pastebin amsi-bypass upx xmrig
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CoinMiner
Verdict:
Malicious
Score:
96.5%
Tags:
injection virus krypt mint
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug expired-cert invalid-signature krypt signed
Verdict:
Malicious
Labled as:
Mint.Zard.Generic
Result
Gathering data
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-01-26T00:18:00Z UTC
Last seen:
2026-01-26T02:35:00Z UTC
Hits:
~100
Detections:
Trojan-Dropper.Win32.Agent.sb Trojan.Win32.Agent.rnd VHO:Trojan-Dropper.Win32.Agent.gen Trojan.Win32.Agent.xccgjo PDM:Trojan.Win32.Generic Trojan.Win64.Reflo.sb HEUR:Trojan.Multi.Agent.gen Trojan-Dropper.Win32.Injector.sb RiskTool.Miner.UDP.C&C RiskTool.BitCoinMiner.TCP.C&C
Malware family:
XMRig Miner
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.UNAMSILENTCRYPTOMINER
Threat name:
Win64.Trojan.MintZard
Status:
Malicious
First seen:
2026-01-26 06:30:33 UTC
File Type:
PE+ (Exe)
AV detection:
24 of 36 (66.67%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
r77rootkit
Similar samples:
+ 2'432 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Score:
10/10
Tags:
family:xmrig defense_evasion execution miner persistence upx
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
UPX packed file
Contacts third-party web service commonly abused for C2
Checks BIOS information in registry
Creates new service(s)
Cryptocurrency Miner
Executes dropped EXE
Stops running service(s)
Command and Scripting Interpreter: PowerShell
XMRig Miner payload
Suspicious use of NtCreateUserProcessOtherParentProcess
Xmrig family
xmrig
Unpacked files
SH256 hash:
b8a9fef88b09310f03ac652bff1450b9ae3a05111b9567dab8b839de07c979b9
MD5 hash:
9d1b82cf89993f4d584ea67533ee9afe
SHA1 hash:
d411a9138f1cd50d6ac4915ec359059855daaa77
Please note that we are no longer able to provide a coverage score for Virus Total.
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: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerException__SetConsoleCtrl |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Thread |
|---|---|
| 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: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | MALWARE_Win_R77 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects r77 rootkit |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Windows_Generic_Threat_e8abb835 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Windows_Rootkit_R77_d0367e28 |
|---|---|
| Author: | Elastic Security |
| Reference: | https://www.elastic.co/security-labs/elastic-security-labs-steps-through-the-r77-rootkit |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Dropped by
Amadey
Delivery method
Distributed via web download
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