MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090. 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


SilentCryptoMiner


Vendor detections: 18


Intelligence 18 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090
SHA3-384 hash: b5bc8622b6f788fbec93b061cae8aacc29039c6463b338bfe38011f8e3bc96449b3d0abf454a484f94074be399ced980
SHA1 hash: 332f71963b41ecfb2ef18ab184bb8593a8d74d72
MD5 hash: 662258a71a247cc5f3d0ea31009ce9a1
humanhash: grey-alaska-hamper-bakerloo
File name:file
Download: download sample
Signature SilentCryptoMiner
Create hunting rule
File size:5'090'304 bytes
First seen:2025-12-21 05:50:50 UTC
Last seen:2025-12-21 08:15:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 95de1cd7eecd16b9d38ba1ad174caf95 (1 x SilentCryptoMiner, 1 x Formbook)
ssdeep 98304:hl/AAjXGcxEYP/1nfEtl2dEK6+LEyCoYYYLF:hloIGcxEYP/11dH6+gyZYrL
TLSH T1F036F019E3D806A9D53BDB38CA629333D6B079524731D58F0A99D7052F33A909F3B722
TrID 66.6% (.EXE) InstallShield setup (43053/19/16)
16.2% (.EXE) Win64 Executable (generic) (10522/11/4)
7.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
3.1% (.EXE) OS/2 Executable (generic) (2029/13)
3.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:b dropped-by-gcleaner exe SilentCryptoMiner TWO.file


Avatar
Bitsight
url: http://194.38.20.224/service

Intelligence

File Origin
# of uploads :
5
# of downloads :
142
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
xmrig
Create hunting rule
ID:
1
File name:
d9942a6d35dded924026b36301f00829d2cbf05c57904f167a5d53609219dea5.exe
Verdict:
Malicious activity
Analysis date:
2025-12-20 20:30:33 UTC
Tags:
evasion rat pulsar crypto-regex upx silentcryptominer miner winring0-sys vuln-driver xmrig
Link:
https://app.any.run/tasks/ecd863e0-4283-4560-8ce1-5a8d70d7ef51

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CoinMiner
Create hunting rule
Link:
https://www.capesandbox.com/analysis/45636/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69478ad51f45795757232b1c
Tags:
crypt spawn hype
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context crypto microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/69478ad2e126b9ff438a74a1/reports/3eb69bf1-1dcc-4f33-af60-e18e37f5604b/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-12-21T02:46:00Z UTC
Last seen:
2025-12-22T16:05:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Agent.rnd VHO:Trojan-PSW.Win32.Lumma.gen Trojan.Win32.Inject.sb Trojan.Miner.HTTP.ServerRequest Trojan-Ransom.Blocker.HTTP.ServerRequest Trojan.Win64.SilentCryptoMiner.agg Trojan.Win32.Miner.sb Trojan.Win32.Agent.sb Trojan.Miner.HTTP.C&C PDM:Trojan.Win32.Generic RiskTool.Miner.UDP.C&C RiskTool.BitCoinMiner.TCP.C&C NetTool.PlainTextCredentials.HTTP.C&C
Link:
https://opentip.kaspersky.com/21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090/results?tab=lookup
Malware family:
Rhadamanthys
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1a3883e9-da51-43b9-b0fe-79538572bc66
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/662258a71a247cc5f3d0ea31009ce9a1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090/
Verdict:
Malicious
Threat:
Family.AMADEY
Link:
https://tip.neiki.dev/file/21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-12-21 05:51:17 UTC
File Type:
PE+ (Exe)
Extracted files:
40
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehxt3hkj7mkj7do6f77er4z5a5zonv7dzshuz55cnlm4limeocia._file
Verdict:
malicious
Label(s):
unc_loader_055
Create hunting rule
Similar samples:
error
SilentCryptoMiner
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig defense_evasion execution miner persistence upx
Link:
https://tria.ge/reports/251223-n3fveswpdz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Launches sc.exe
Suspicious use of SetThreadContext
UPX packed file
Power Settings
Creates new service(s)
Cryptocurrency Miner
Executes dropped EXE
Stops running service(s)
XMRig Miner payload
Xmrig family
xmrig
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/fb620bc6-d6f3-4d9c-955f-214ef666e695
Unpacked files
SH256 hash:
21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090
MD5 hash:
662258a71a247cc5f3d0ea31009ce9a1
SHA1 hash:
332f71963b41ecfb2ef18ab184bb8593a8d74d72
Link:
https://www.unpac.me/results/8eb987a2-c6f0-434f-8f83-5c85aeb77899/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/21ef3d9d49fb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090

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
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
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
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Windows_Generic_Threat_e8abb835
Create hunting rule
Author:Elastic Security

File information

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

Web download

SilentCryptoMiner

Executable exe 21ef3d9d49fb149f8dde2ffe48f33d0772e6d7e3cc8f4cf7a26ad9c5a1847090

(this sample)

  
Dropped by
Gcleaner
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/45636/

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