MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf
SHA3-384 hash: 09d1cb38b2e16939cc3a6d77f3dd21c204b42deb95047d8593412c5e3025584f4611bfb80b0b147a0953a309f3fb9aef
SHA1 hash: b294cd92d77fba5e933afc7e5b30619e2a4c60a4
MD5 hash: 50b831444f46f79cddd00ecba852d28c
humanhash: carbon-carbon-vermont-california
File name:50b831444f46f79cddd00ecba852d28c.exe
Download: download sample
Signature CoinMiner
Create hunting rule
File size:2'679'368 bytes
First seen:2023-12-07 17:01:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f6baa5eaa8231d4fe8e922a2e6d240ea (36 x CoinMiner, 22 x DCRat, 15 x LummaStealer)
ssdeep 49152:pO57/MSzRk4k8HRe1KBh9jAen1sl+w+wwpUIghBiOsQZEG5Pw1c6fjfbyp7:pO5cT8HyKP9spl0eIgh4O6G5t6LuV
Threatray 409 similar samples on MalwareBazaar
TLSH T195C533C8FB5188F0F556177C49B679627FB6B162179488EF28908A160C262835B7FCCF
TrID 43.3% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
27.6% (.EXE) Win64 Executable (generic) (10523/12/4)
13.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) OS/2 Executable (generic) (2029/13)
5.2% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 35254d1505154925 (1 x CoinMiner)
Reporter abuse_ch
Tags:CoinMiner exe signed

Code Signing Certificate

Organisation:ESET NOD32
Issuer:ESET NOD32
Algorithm:sha256WithRSAEncryption
Valid from:2023-11-27T00:00:00Z
Valid to:2025-11-27T00:00:00Z
Serial number: 7b425d1257eae6bf
Intelligence: 6 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: c5f5f5f2b604f0dfa160c4f72f8051307fd075551c133e218bfe1882eb55a1b7
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
324
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/463320/
Detection(s):
Win.Keylogger.Gencbl-9969771-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Moving a file to the %AppData% subdirectory
Creating a process from a recently created file
Replacing files
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
coinminer hook installer keylogger lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6571fa903c6ae873fb89875b/reports/ad36c48d-3344-4f8a-9b99-b0e3c4e2530a/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/1907daad-fb97-4614-88f6-46bfdcb0f832
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1355649
Signature
Antivirus detection for URL or domain
Connects to a pastebin service (likely for C&C)
Contains functionality to register a low level keyboard hook
Drops password protected ZIP file
Encrypted powershell cmdline option found
Machine Learning detection for dropped file
Modifies power options to not sleep / hibernate
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential dropper URLs found in powershell memory
Sample is not signed and drops a device driver
Sigma detected: Schedule system process
Snort IDS alert for network traffic
Uses powercfg.exe to modify the power settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1355649 Sample: 4Sx30CYyzf.exe Startdate: 07/12/2023 Architecture: WINDOWS Score: 100 65 pastebin.com 2->65 71 Snort IDS alert for network traffic 2->71 73 Antivirus detection for URL or domain 2->73 75 Multi AV Scanner detection for dropped file 2->75 79 5 other signatures 2->79 10 4Sx30CYyzf.exe 8 2->10         started        signatures3 77 Connects to a pastebin service (likely for C&C) 65->77 process4 file5 57 C:\Users\user\AppData\Roaming\temp\7z.exe, PE32+ 10->57 dropped 59 C:\Users\user\AppData\Roaming\temp\7z.dll, PE32+ 10->59 dropped 81 Contains functionality to register a low level keyboard hook 10->81 14 cmd.exe 2 10->14         started        signatures6 process7 process8 16 Installer.exe 15 31 14->16         started        21 7z.exe 2 14->21         started        23 7z.exe 3 14->23         started        25 11 other processes 14->25 dnsIp9 61 195.20.16.153, 49711, 49712, 80 EITADAT-ASFI Finland 16->61 63 pastebin.com 104.20.68.143, 443, 49710 CLOUDFLARENETUS United States 16->63 51 C:\ProgramData\Dllhost\winlogson.exe, PE32+ 16->51 dropped 53 C:\ProgramData\Dllhost\WinRing0x64.sys, PE32+ 16->53 dropped 67 Sample is not signed and drops a device driver 16->67 27 cmd.exe 1 16->27         started        30 cmd.exe 16->30         started        32 cmd.exe 16->32         started        55 C:\Users\user\AppData\...\Installer.exe, PE32 21->55 dropped file10 signatures11 process12 signatures13 83 Encrypted powershell cmdline option found 27->83 85 Uses schtasks.exe or at.exe to add and modify task schedules 27->85 87 Uses powercfg.exe to modify the power settings 27->87 89 Modifies power options to not sleep / hibernate 27->89 34 powershell.exe 23 27->34         started        37 conhost.exe 27->37         started        39 powercfg.exe 27->39         started        49 2 other processes 27->49 41 conhost.exe 30->41         started        43 schtasks.exe 30->43         started        45 conhost.exe 32->45         started        47 schtasks.exe 32->47         started        process14 signatures15 69 Potential dropper URLs found in powershell memory 34->69
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-12-06 18:35:36 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
14 of 23 (60.87%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qjl3nwo3fiafjck3hl5pahsaupp3k267ogkymuexeaomnqpdr3pq._file
Verdict:
unknown
Similar samples:
2767d4128fc88d587b6681fcff44a8694833e95da510eca60750540e42f2e418
CoinMiner
35b70fc462fe02d507a58c2b5a33ddd5e26aadc7ac8fe3beae2a82666c8b17c6
CoinMiner
84f515bfed1a8fa9f055a9f3bddb3851618ce0b0b940a5d548aadc24c19362bb
CoinMiner
86f5b4f32c68f9337a19363da77d77b6275923da37d2e4144b8f0740620fd3ac
CoinMiner
aa89562efabab44187a1813c2ad73254d12e6ef92ede28d0a6054ee1ea09a175
CoinMiner
ac660e725f1484dfe6b6d4f8606a4711fd9354c2bf8d5d4f63bad03c39849894
CoinMiner
ae68aa627df4a3fd10e5416195e29203ea60227560f3e1de22fb907e86c369ad
CoinMiner
c89400e70500cd0faad8ea9d0c8d3cc2fc58408c1123dd3fbcd02e80d4bbed65
CoinMiner
+ 399 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/231207-vkgsbsdh83/
Behaviour
Creates scheduled task(s)
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Unpacked files
SH256 hash:
e059e36ad98e2e945f41a758886ed2ab2744645a63e7d4be5befacdad677d43c
MD5 hash:
9dbb6dec862093b187857d21cd4d4e7b
SHA1 hash:
c81ec441e30440d1ba4763eb5570181d75f7818a
Link:
https://www.unpac.me/results/ca740dfe-0090-4207-8738-b90b40232d54/
SH256 hash:
8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf
MD5 hash:
50b831444f46f79cddd00ecba852d28c
SHA1 hash:
b294cd92d77fba5e933afc7e5b30619e2a4c60a4
Link:
https://www.unpac.me/results/ca740dfe-0090-4207-8738-b90b40232d54/
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/8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

CoinMiner

Executable exe 8257b6d9db2a0054895b3afaf01e40a3dfb56bdf7195865097201cc6c1e38edf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2736330/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/463320/

Comments