MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc21a103ecc58048bb6d431cbd4ba89f2c69f97f45ba2c1b0810d657f50c29b8. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments

SHA256 hash: fc21a103ecc58048bb6d431cbd4ba89f2c69f97f45ba2c1b0810d657f50c29b8
SHA3-384 hash: 7d745c7236e0d1c71ca85e74fb9e5345a0b0f0a3dacfdb66d570f4833ac6488ebc1aee81f14e4adb326c6f65ca98efca
SHA1 hash: d714c5969c3554b98134ff0c603fec2bf697915e
MD5 hash: 5a8bf2df30bb7708557377d7b1400bd8
humanhash: north-fix-asparagus-washington
File name:updater.exe
Download: download sample
Signature CoinMiner
File size:2'733'848 bytes
First seen:2026-03-30 20:34:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash de41d4e0545d977de6ca665131bb479a (89 x CoinMiner)
ssdeep 49152:Xw/w6qbp/Xexee05fyCN5CoBNEZIIODn4Ql7Jo3/BOtKo55jFdUKc6rO:v6qbp/keeaCAEZW4cVo38tKo55jFw6rO
Threatray 1'035 similar samples on MalwareBazaar
TLSH T16EC533056110E2B6C8CFA8786A6C0FE3799539904B7F8CF31ACAD55932306D5E612EDF
TrID 56.8% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
22.4% (.EXE) Win64 Executable (generic) (6522/11/2)
6.9% (.EXE) OS/2 Executable (generic) (2029/13)
6.8% (.EXE) Generic Win/DOS Executable (2002/3)
6.8% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon 898d3212564ccd4d (2 x CoinMiner)
Reporter Alex_sev
Tags:CoinMiner exe miner XMRIG

Intelligence


File Origin
# of uploads :
1
# of downloads :
127
Origin country :
AU AU
Vendor Threat Intelligence
Gathering data
Malware family:
ID:
1
File name:
updater.exe
Verdict:
Malicious activity
Analysis date:
2026-03-30 20:28:42 UTC
Tags:
xmrig miner winring0-sys vuln-driver upx

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Verdict:
Malicious
Score:
99.1%
Tags:
coinminer xmrig crypt miner
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Running batch commands
Launching a process
Creating a service
Creating a file
Launching a service
Creating a process from a recently created file
Creating a file in the Windows subdirectories
Searching for synchronization primitives
Creating a file in the system32 subdirectories
Enabling autorun for a service
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug coinminer expired-cert invalid-signature krypt packed signed zusy
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-02-05T12:49:00Z UTC
Last seen:
2026-04-01T18:20:00Z UTC
Hits:
~100000
Detections:
VHO:Trojan.Win32.Agent.gen BSS:Trojan.Win32.Generic Trojan.Win32.Miner.sb Trojan.Win32.Inject.sb Trojan.Win32.Agent.rnd HEUR:Trojan.Win32.Miner.pef RiskTool.BitCoinMiner.TCP.C&C
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Verdict:
Malicious
Threat:
Family.UNAMSILENTCRYPTOMINER
Threat name:
Win64.Trojan.Miner
Status:
Suspicious
First seen:
2026-02-06 20:22:49 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
29 of 36 (80.56%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:xmrig defense_evasion execution miner persistence upx
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
UPX packed file
Power Settings
Creates new service(s)
Executes dropped EXE
Stops running service(s)
Command and Scripting Interpreter: PowerShell
XMRig Miner payload
Xmrig family
xmrig
Unpacked files
SH256 hash:
fc21a103ecc58048bb6d431cbd4ba89f2c69f97f45ba2c1b0810d657f50c29b8
MD5 hash:
5a8bf2df30bb7708557377d7b1400bd8
SHA1 hash:
d714c5969c3554b98134ff0c603fec2bf697915e
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:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:Windows_Generic_Threat_e8abb835
Author:Elastic Security

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments