MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779
SHA3-384 hash: 3cecf4703e273b3d0f3eb6647fde80a80be4e0afe599338a266fe2a1315e0fd4d5d0be662f24f6d040097d9d30cc89fe
SHA1 hash: 4d0dcb7ebb340af8887fdec5f665eb091db9caf6
MD5 hash: 2f03ead3988fc2b5e16470ed0a96557d
humanhash: zebra-johnny-blue-juliet
File name:wk.exe
Download: download sample
Signature CoinMiner
Create hunting rule
File size:3'292'191 bytes
First seen:2024-06-11 16:51:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash eec4c9510d1f15621b464022e8c2d408 (2 x Mimikatz, 1 x CoinMiner)
ssdeep 49152:ByTeFwtj0HLirwzPPk/iZuKsZxof6SD3nlOyT3Pwsu8/Cf6PyBXEjk1:ByVEer3/iQZxofZXlOaN/Cf66NEa
TLSH T17DE5123173A2C6B2C67D81300F98EAB694AD7F208E6109E777D8BD5919F05E02635F36
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 70f4e0f0f0e0f070 (2 x GCleaner, 2 x Mimikatz, 1 x Formbook)
Reporter sentotayam
Tags:CoinMiner exe miner

Intelligence

File Origin
# of uploads :
1
# of downloads :
402
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779.exe
Verdict:
Suspicious activity
Analysis date:
2024-06-11 16:52:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f006bad6-ac01-4b2b-ae2f-d80b411d061c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Agent-1828192
Create hunting rule

Win.Coinminer.Generic-7151253-0
Create hunting rule

Win.Coinminer.Generic-7151447-0
Create hunting rule

Win.Coinminer.Generic-7155777-0
Create hunting rule

Win.Trojan.Coinminer-9866537-0
Create hunting rule

Multios.Coinminer.Miner-6781728-2
Create hunting rule

SecuriteInfo.com.HackTool.VulnDriver.x641.D7DBCLASSIC.10119.14589.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666881f6a439c6d6b0877c59win7simulatehigh_evasion
Tags:
Banker Encryption Execution Network Other Static Malware Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a service
Launching a service
Searching for synchronization primitives
Loading a system driver
Creating a window
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Сreating synchronization primitives
Creating a process from a recently created file
Running batch commands
Creating a file in the %temp% directory
Creating a process with a hidden window
Enabling autorun for a service
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
90%
Tags:
anti-vm cmd epmicrosoft_visual_cc fingerprint installer lolbin microsoft_visual_cc miner overlay packed packed packed ping regedit regini remote sfx shell32 zusy
Link:
https://www.filescan.io/uploads/666880b30bf5978c0b0e601d/reports/5395a1df-325c-4392-84de-063a6ffe811e/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779
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.
Malware family:
XMRig Miner
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0f6e8a40-ce6c-41ab-94ae-af2f01467070
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1455358
Signature
Antivirus detection for dropped file
Detected Stratum mining protocol
Detected VMProtect packer
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found strings related to Crypto-Mining
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Potentially malicious time measurement code found
Query firmware table information (likely to detect VMs)
Sample is not signed and drops a device driver
Sample is protected by VMProtect
Sigma detected: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious New Service Creation
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: Suspicious Service Binary Directory
Sigma detected: System File Execution Location Anomaly
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1455358 Sample: wk.exe Startdate: 11/06/2024 Architecture: WINDOWS Score: 100 66 auto.skypool.xyz 2->66 68 time.windows.com 2->68 70 all47-af4cc1b0839ef272.elb.ap-east-1.amazonaws.com 2->70 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 Yara detected Xmrig cryptocurrency miner 2->80 84 12 other signatures 2->84 9 wk.exe 8 2->9         started        13 svchost.exe 1 2->13         started        15 svchost.exe 2->15         started        17 svchost.exe 2->17         started        signatures3 82 Performs DNS queries to domains with low reputation 66->82 process4 file5 58 C:\Windows\Fonts\systam33\w.exe, PE32 9->58 dropped 60 C:\Windows\Fonts\systam33\svchost.exe, PE32 9->60 dropped 62 C:\Windows\Fonts\systam33\csrss.exe, PE32 9->62 dropped 64 C:\Windows\Fonts\systam33\w.bat, ASCII 9->64 dropped 106 Drops executables to the windows directory (C:\Windows) and starts them 9->106 108 Drops PE files with benign system names 9->108 110 Potentially malicious time measurement code found 9->110 19 w.exe 7 9->19         started        23 cmd.exe 2 9->23         started        25 cmd.exe 1 9->25         started        112 Antivirus detection for dropped file 13->112 114 Multi AV Scanner detection for dropped file 13->114 116 Machine Learning detection for dropped file 13->116 118 Tries to detect virtualization through RDTSC time measurements 13->118 27 chrome.exe 1 13->27         started        signatures6 process7 dnsIp8 52 C:\Windows\Fonts\chrome\chrome.exe, PE32+ 19->52 dropped 54 C:\Windows\Fonts\chrome\WinRing0x64.sys, PE32+ 19->54 dropped 56 C:\Windows\Fonts\chrome\xmrig-asm.lib, current 19->56 dropped 86 Multi AV Scanner detection for dropped file 19->86 88 Machine Learning detection for dropped file 19->88 90 Found strings related to Crypto-Mining 19->90 104 2 other signatures 19->104 30 cmd.exe 1 19->30         started        92 Uses ping.exe to sleep 23->92 94 Drops executables to the windows directory (C:\Windows) and starts them 23->94 96 Uses ping.exe to check the status of other devices and networks 23->96 33 csrss.exe 1 23->33         started        35 PING.EXE 1 23->35         started        38 conhost.exe 23->38         started        46 9 other processes 23->46 40 conhost.exe 25->40         started        42 PING.EXE 1 25->42         started        74 16.163.205.112, 49711, 6666 unknown United States 27->74 98 Antivirus detection for dropped file 27->98 100 Query firmware table information (likely to detect VMs) 27->100 44 conhost.exe 27->44         started        file9 102 Detected Stratum mining protocol 74->102 signatures10 process11 dnsIp12 120 Uses ping.exe to sleep 30->120 48 conhost.exe 30->48         started        50 PING.EXE 1 30->50         started        122 Multi AV Scanner detection for dropped file 33->122 72 127.0.0.1 unknown unknown 35->72 signatures13 process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779/
Threat name:
Win32.Trojan.SvcMiner
Create hunting rule
Status:
Malicious
First seen:
2024-05-13 09:19:42 UTC
File Type:
PE (Exe)
Extracted files:
57
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iazr23r5dddb2vmrvkc7yrk7mz2opcjezzdgbtqyeinkjh3jm54q._file
Verdict:
malicious
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig execution miner persistence vmprotect
Link:
https://tria.ge/reports/240611-vddgbsterh/
Behaviour
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Launches sc.exe
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
VMProtect packed file
Creates new service(s)
XMRig Miner payload
xmrig
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/210cdc37-f49f-4af2-a810-056a6ed2b3b9
Unpacked files
SH256 hash:
d17b1bc066a507116c81a2343a4de6f9b9449f28498ada4a2cf3a774acb7fb5f
MD5 hash:
8335db737fbe55df7b9460be83fa8c4e
SHA1 hash:
0ffcf3b4f1f8b493136cdc5f7dd361a9d94591f0
Link:
https://www.unpac.me/results/14cf4c80-03e2-4a74-bb6e-b5889dbf04e5/
SH256 hash:
f6be8784ea31ee34b36efe2cb5d68bfec8fa33ab1a550c6fccb63cf469fe1208
MD5 hash:
6b592d1cceaf329c68acaff75fb80be2
SHA1 hash:
ebf5f792c4672973d366b14715b828e9e6e18dac
Detections:
XMRig
Create hunting rule
MALWARE_Win_CoinMiner02
Create hunting rule
XMRIG_Monero_Miner
Create hunting rule
MAL_XMR_Miner_May19_1
Create hunting rule
Link:
https://www.unpac.me/results/14cf4c80-03e2-4a74-bb6e-b5889dbf04e5/
SH256 hash:
11bd2c9f9e2397c9a16e0990e4ed2cf0679498fe0fd418a3dfdac60b5c160ee5
MD5 hash:
0c0195c48b6b8582fa6f6373032118da
SHA1 hash:
d25340ae8e92a6d29f599fef426a2bc1b5217299
Detections:
PUA_VULN_Driver_Openlibsysorg_Winringsys_Winring_11BD
Create hunting rule
Link:
https://www.unpac.me/results/14cf4c80-03e2-4a74-bb6e-b5889dbf04e5/
Parent samples :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 hash:
761b6844513621457a2cc1be2303670dc000f29a679267be86b9375d91b88ad1
MD5 hash:
45c9146704abbd6f658e26d2575c0fa2
SHA1 hash:
eef2894b2b15f841abe7d912834b90fa0fae2e84
Link:
https://www.unpac.me/results/14cf4c80-03e2-4a74-bb6e-b5889dbf04e5/
SH256 hash:
40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779
MD5 hash:
2f03ead3988fc2b5e16470ed0a96557d
SHA1 hash:
4d0dcb7ebb340af8887fdec5f665eb091db9caf6
Link:
https://www.unpac.me/results/14cf4c80-03e2-4a74-bb6e-b5889dbf04e5/
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/40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Web download

CoinMiner

Executable exe 40331d6e3d18c61d5591aa85fc455f6674e78924ce4660ce18221aa49f696779

(this sample)

  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
KERNEL32.dll::GetWindowsDirectoryW

Comments