MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737
SHA3-384 hash: 09e78f758a8c0e1cba00481b09f0c528542b75a4fb56cee97d85f682967f9492cd368758d0f13895ebdba9506da7f99e
SHA1 hash: a49524d26639130bc09acb4a0187917fbc5ec003
MD5 hash: 8340b7602e82921aa8d72ae4f8ea11cc
humanhash: quebec-william-georgia-vermont
File name:8340b7602e82921aa8d72ae4f8ea11cc
Download: download sample
Signature CoinMiner
Create hunting rule
File size:3'080'744 bytes
First seen:2024-02-20 00:31:54 UTC
Last seen:2024-07-25 02:15:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f6baa5eaa8231d4fe8e922a2e6d240ea (37 x CoinMiner, 22 x DCRat, 15 x LummaStealer)
ssdeep 49152:qy540hQLZ04Zv0lP/x3CTa5i1UXMYKGQylk7lQkqfxcTSI9PVVb99JjGn:qy5406+4UP/xCTa+YKGQyWlQBZcTSIpm
Threatray 462 similar samples on MalwareBazaar
TLSH T1F2E533DA3BDAC5BAD74247F0C899B3A509F2FA235708C1574B5449888CA0BDDBB3C1D6
TrID 38.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
24.6% (.EXE) Win64 Executable (generic) (10523/12/4)
11.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.5% (.EXE) Win32 Executable (generic) (4504/4/1)
4.7% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 00c001d4d49aceba (1 x CoinMiner)
Reporter zbetcheckin
Tags:32 CoinMiner exe signed

Code Signing Certificate

Organisation:Microsoft
Issuer:Microsoft
Algorithm:sha256WithRSAEncryption
Valid from:2024-02-13T00:00:00Z
Valid to:2028-02-13T00:00:00Z
Serial number: 4a87e5b39ebcfd3a
Thumbprint Algorithm:SHA256
Thumbprint: ea29dbfb0e26abd3b6034d0722c3c8507f9339f1bfa35ee614a442d31ad08c89
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
331
Origin country :
FR FR
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/476864/
Detection(s):
Win.Keylogger.Gencbl-9969771-0
Create hunting rule

Win.Malware.7zip-10013374-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Moving a file to the %temp% subdirectory
Creating a process from a recently created file
Replacing files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint hook installer keylogger lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/65d3f30626f1ddc579a1227a/reports/8529f7b6-a2b5-4819-954f-4f2059e1d06a/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737
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/bf69e792-56ee-43ee-9b49-068ac36b01b0
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1394877
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Connects to a pastebin service (likely for C&C)
Contains functionality to detect sleep reduction / modifications
Contains functionality to register a low level keyboard hook
Drops password protected ZIP file
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1394877 Sample: 13txcSmcBP.exe Startdate: 20/02/2024 Architecture: WINDOWS Score: 100 66 pastebin.com 2->66 68 joxi.net 2->68 80 Snort IDS alert for network traffic 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 Antivirus detection for URL or domain 2->84 88 9 other signatures 2->88 12 13txcSmcBP.exe 8 2->12         started        signatures3 86 Connects to a pastebin service (likely for C&C) 66->86 process4 file5 58 C:\Users\user\AppData\Local\Temp\...\7z.exe, PE32+ 12->58 dropped 60 C:\Users\user\AppData\Local\Temp\...\7z.dll, PE32+ 12->60 dropped 100 Contains functionality to register a low level keyboard hook 12->100 16 cmd.exe 2 12->16         started        signatures6 process7 process8 18 Installer.exe 14 16->18         started        22 7z.exe 2 16->22         started        25 7z.exe 3 16->25         started        27 4 other processes 16->27 dnsIp9 70 joxi.net 104.21.73.118, 443, 49710, 49711 CLOUDFLARENETUS United States 18->70 90 Writes to foreign memory regions 18->90 92 Allocates memory in foreign processes 18->92 94 Injects a PE file into a foreign processes 18->94 96 Contains functionality to detect sleep reduction / modifications 18->96 29 RegSvcs.exe 15 31 18->29         started        56 C:\Users\user\AppData\Local\...\Installer.exe, PE32 22->56 dropped file10 signatures11 process12 dnsIp13 72 45.144.232.181, 49715, 49716, 80 SYNLINQsynlinqdeDE United Kingdom 29->72 74 pastebin.com 172.67.34.170, 443, 49713 CLOUDFLARENETUS United States 29->74 62 C:\ProgramData\Dllhost\winlogson.exe, PE32+ 29->62 dropped 64 C:\ProgramData\Dllhost\WinRing0x64.sys, PE32+ 29->64 dropped 102 Sample is not signed and drops a device driver 29->102 34 cmd.exe 1 29->34         started        37 cmd.exe 1 29->37         started        39 cmd.exe 1 29->39         started        file14 signatures15 process16 signatures17 76 Encrypted powershell cmdline option found 34->76 78 Uses schtasks.exe or at.exe to add and modify task schedules 34->78 41 powershell.exe 22 34->41         started        44 conhost.exe 34->44         started        46 conhost.exe 37->46         started        48 schtasks.exe 37->48         started        50 conhost.exe 39->50         started        52 schtasks.exe 39->52         started        process18 signatures19 98 Potential dropper URLs found in powershell memory 41->98 54 WmiPrvSE.exe 41->54         started        process20
Score:
77%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-02-19 20:01:00 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
14 of 24 (58.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=57xdqezuqdt4zkqrijgutoz5r263rh73dwa2cd3mibjtpz6tu43q._file
Verdict:
malicious
Similar samples:
1dac794ec27a60b9fd57d2b31c4e8f76c50b21d2bc550bdf96bbee76337696f6
CoinMiner
2767d4128fc88d587b6681fcff44a8694833e95da510eca60750540e42f2e418
CoinMiner
35b70fc462fe02d507a58c2b5a33ddd5e26aadc7ac8fe3beae2a82666c8b17c6
CoinMiner
4420d56e7d9699dc1962cb5504cd177d428aa1e2bfb96a77dfa455947d712cfe
CoinMiner
64d6571e693da31f48654947300e420d978bc0077fdb65c831a6012d9f72498d
CoinMiner
90a8447971f2150fe9ba03d2680af7bdd33de721e9e1521166a7826ed143a2d8
CoinMiner
97efe91fe5eff3dcdcb055f037f1df01c1409e6bd38a8f07170ea53a0ff265ef
CoinMiner
c9d46ad5a9a42497b7c5949317e7cb743f865e84ba97a17289aaa69f91912a18
CoinMiner
e98777959f0da84b4346f4d8a9dec025014adc90fb895eee29f6d765ba7e0162
CoinMiner
+ 452 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/240220-avl5ksgf28/
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
Suspicious use of SetThreadContext
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:
0889984fb9f79acaf46f9c744e19e1678a58d66910c0a5bc48955f41d3fbf36a
MD5 hash:
9a16be805083bce49173c0a4e125cf0c
SHA1 hash:
23998ae69b9a27bbfac91fbed6de0baf3ccdcf2f
Link:
https://www.unpac.me/results/32ab6b75-3dd2-4b87-b4c9-1b968f61ddb0/
SH256 hash:
efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737
MD5 hash:
8340b7602e82921aa8d72ae4f8ea11cc
SHA1 hash:
a49524d26639130bc09acb4a0187917fbc5ec003
Link:
https://www.unpac.me/results/32ab6b75-3dd2-4b87-b4c9-1b968f61ddb0/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/efee38133480/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/efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737

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 efee38133480e7ccaa11424d49bb3d8ebdb89ffb1d81a10f6c405337e7d3a737

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2736330/
Cape
Cape
https://www.capesandbox.com/analysis/476864/
  
URLhaus
https://urlhaus.abuse.ch/url/2764910/

Comments


Avatar
zbet commented on 2024-02-20 00:31:55 UTC

url : hxxp://45.144.232.181/conhost.exe