MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef256556b6749f441874b9d86e2c35c693fdc6d358ce2bb58bb2ba2e2cd939d5. 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 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef256556b6749f441874b9d86e2c35c693fdc6d358ce2bb58bb2ba2e2cd939d5
SHA3-384 hash: b6e57d49446c6fc09426be5fb66f1118073aad0ec0822b37e1fdfed08d8c3c66c7b5120c38ff04f20b00adb2c2c69f5c
SHA1 hash: 8b8480bf32ab1188926d5dfa7c8b5f81e1d798d3
MD5 hash: 62472c78b3ab085422418e49dd2aa11c
humanhash: timing-romeo-kitten-purple
File name:62472c78b3ab085422418e49dd2aa11c
Download: download sample
Signature CoinMiner
Create hunting rule
File size:5'986'304 bytes
First seen:2023-07-28 05:39:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f7505c167603909b7180406402fef19e (36 x CoinMiner, 3 x PripyatMiner)
ssdeep 98304:wvwPndUBiFUg37BdTNJsl1cHZMjcXW7afr02BlDXFqv+nxRZWP/iSMgCW7owLCyy:wIPndf9uBGLfgWxR8XEguyk6QIOb
TLSH T1CD56C09AC3FDA4BBD6F49CB9C02823879ED3E4605841D1F1434EB53968B5E24EBBD205
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10523/12/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:64 CoinMiner exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
328
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
62472c78b3ab085422418e49dd2aa11c
Verdict:
Malicious activity
Analysis date:
2023-07-28 05:42:43 UTC
Tags:
miner
Link:
https://app.any.run/tasks/5177f697-12c3-4261-bf0e-bfa5cd73185a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/435808/
Detection(s):
Win.Packed.Tedy-10005655-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Running batch commands
Launching a process
Creating a file in the %temp% directory
Sending a custom TCP request
Searching for synchronization primitives
Creating a file in the Program Files subdirectories
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file in the Windows subdirectories
Creating a file in the system32 subdirectories
Forced system process termination
Deleting a recently created file
Replacing files
Creating a service
Launching a service
Loading a system driver
Setting browser functions hooks
Unauthorized injection to a recently created process
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun for a service
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug barys packed
Link:
https://www.filescan.io/uploads/64c354b380fc6008e921fb5f/reports/830e7b16-332e-440d-9c72-aa9c585f1e20/overview
Verdict:
Malicious
Labled as:
Barys.Generic
Link:
https://www.hybrid-analysis.com/sample/ef256556b6749f441874b9d86e2c35c693fdc6d358ce2bb58bb2ba2e2cd939d5
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cf5ee76d-0bb2-4b1f-a807-6c536aa898d8
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1281601
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Creates files in the system32 config directory
Detected unpacking (creates a PE file in dynamic memory)
Found hidden mapped module (file has been removed from disk)
Hooks files or directories query functions (used to hide files and directories)
Hooks processes query functions (used to hide processes)
Hooks registry keys query functions (used to hide registry keys)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sample is not signed and drops a device driver
Sigma detected: Stop multiple services
Writes to foreign memory regions
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1281601 Sample: ES35Rg6cR3.exe Startdate: 28/07/2023 Architecture: WINDOWS Score: 100 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus detection for dropped file 2->75 77 Antivirus / Scanner detection for submitted sample 2->77 79 11 other signatures 2->79 11 ES35Rg6cR3.exe 2 2->11         started        15 powershell.exe 21 2->15         started        17 cmd.exe 1 2->17         started        19 3 other processes 2->19 process3 file4 69 C:\Users\user\AppData\...\tvflowciitat.tmp, PE32+ 11->69 dropped 71 C:\Program Filesbehaviorgraphoogle\Chrome\updaters.exe, PE32+ 11->71 dropped 107 Writes to foreign memory regions 11->107 109 Modifies the context of a thread in another process (thread injection) 11->109 111 Found hidden mapped module (file has been removed from disk) 11->111 115 2 other signatures 11->115 21 dialer.exe 1 11->21         started        113 Creates files in the system32 config directory 15->113 24 conhost.exe 15->24         started        26 conhost.exe 17->26         started        28 sc.exe 1 17->28         started        36 4 other processes 17->36 30 conhost.exe 19->30         started        32 conhost.exe 19->32         started        34 conhost.exe 19->34         started        38 5 other processes 19->38 signatures5 process6 signatures7 89 Contains functionality to inject code into remote processes 21->89 91 Writes to foreign memory regions 21->91 93 Allocates memory in foreign processes 21->93 95 3 other signatures 21->95 40 svchost.exe 21->40 injected 42 lsass.exe 21->42 injected 45 dwm.exe 21->45 injected 47 20 other processes 21->47 process8 signatures9 49 updaters.exe 5 40->49         started        105 Writes to foreign memory regions 42->105 53 MpCmdRun.exe 1 42->53         started        process10 file11 65 C:\Windows\Temp\tvflowciitat.tmp, PE32+ 49->65 dropped 67 C:\Program Filesbehaviorgraphoogle\Libs\WR64.sys, PE32+ 49->67 dropped 81 Protects its processes via BreakOnTermination flag 49->81 83 Writes to foreign memory regions 49->83 85 Modifies the context of a thread in another process (thread injection) 49->85 87 3 other signatures 49->87 55 dialer.exe 49->55         started        58 conhost.exe 53->58         started        signatures12 process13 signatures14 97 Injects code into the Windows Explorer (explorer.exe) 55->97 99 Writes to foreign memory regions 55->99 101 Allocates memory in foreign processes 55->101 103 2 other signatures 55->103 60 powershell.exe 55->60         started        process15 signatures16 117 Creates files in the system32 config directory 60->117 63 conhost.exe 60->63         started        process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef256556b6749f441874b9d86e2c35c693fdc6d358ce2bb58bb2ba2e2cd939d5/
Threat name:
Win64.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2023-07-22 22:43:08 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54swkvvwospuigduxhmg4lbvy2j73rwtldhcxnmlwk5c4lgzhhkq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion
Link:
https://tria.ge/reports/230728-gcv34abf72/
Behaviour
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in Program Files directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Stops running service(s)
Suspicious use of NtCreateUserProcessOtherParentProcess
Unpacked files
SH256 hash:
ef256556b6749f441874b9d86e2c35c693fdc6d358ce2bb58bb2ba2e2cd939d5
MD5 hash:
62472c78b3ab085422418e49dd2aa11c
SHA1 hash:
8b8480bf32ab1188926d5dfa7c8b5f81e1d798d3
Link:
https://www.unpac.me/results/c566e20a-9861-4ffa-ba22-bb547f1ba409/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef256556b674/report/overview.html
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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
Rule name:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:reverse_http
Create hunting rule
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)

File information

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

Web download

CoinMiner

Executable exe ef256556b6749f441874b9d86e2c35c693fdc6d358ce2bb58bb2ba2e2cd939d5

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2691417/
Cape
Cape
https://www.capesandbox.com/analysis/435808/

Comments


Avatar
zbet commented on 2023-07-28 05:39:41 UTC

url : hxxp://5.42.92.67/lend/videoLan.exe