MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2f4f507571ff0b863c431e03fc40893e651f2a887ed1db62f16ff84ad61aa07. 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: 7


Intelligence 7 IOCs YARA 7 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2f4f507571ff0b863c431e03fc40893e651f2a887ed1db62f16ff84ad61aa07
SHA3-384 hash: ea213d892b64c599a341c13fce2ff4d624370faa34fb5ffbf862be0a2cecbea9926b19ac652c6f2c0952c1461df56743
SHA1 hash: 4890f729e6c08442f508e18f58709f0afc9f98d3
MD5 hash: b12ac863eebbced5567dcceb954bc370
humanhash: purple-black-connecticut-cat
File name:b12ac863eebbced5567dcceb954bc370
Download: download sample
Signature CoinMiner
Create hunting rule
File size:1'212'112 bytes
First seen:2022-11-12 18:23:56 UTC
Last seen:2022-11-12 23:11:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f6c4469d829b476e5d830f8c779db31 (3 x CoinMiner)
ssdeep 24576:kRiOfyFPvdjoD5k1g6yjREEA8I8SJfIxCs0s+7sf45vcd8CNC:kRiO61joD5ayjeE7yJs0Ny+p/
Threatray 2'166 similar samples on MalwareBazaar
TLSH T10945E00972ED8188FCA32F749C75A7613764BCB18938C56F36D63B2F2F325548842B26
File icon (PE):PE icon
dhash icon 91e0b29ee6dadae2 (9 x CoinMiner, 4 x ArkeiStealer, 2 x RedLineStealer)
Reporter zbetcheckin
Tags:CoinMiner exe signed

Code Signing Certificate

Organisation:Acer Aspire C27-1655 DQ.BGHER.00S
Issuer:Acer Aspire C27-1655 DQ.BGHER.00S
Algorithm:sha1WithRSAEncryption
Valid from:2022-11-07T14:39:38Z
Valid to:2032-11-08T14:39:38Z
Serial number: 148c4d072570b98d4dfad9c3f385b521
Intelligence: 6 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 1c14973e2519b5266ceec9f7b8c5deaf812d5bfeb7e827509def7ab45a8f3725
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
11
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b12ac863eebbced5567dcceb954bc370
Verdict:
No threats detected
Analysis date:
2022-11-12 18:26:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/536a0644-dbe3-4669-a092-d0a3b0ebbfaf

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/333004/
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.18645.18390.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Creating a file
Creating a file in the %temp% directory
Enabling the 'hidden' option for recently created files
Running batch commands
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
Creating a window
Sending an HTTP POST request
Searching for synchronization primitives
DNS request
Connecting to a cryptocurrency mining pool
Sending a custom TCP request
Creating a service
Launching a service
Loading a system driver
Enabling autorun for a service
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
autoit overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/636fe4c737a53af3a7f57bd4/reports/0ac49d62-3bc2-4fb8-b9a4-b6db2944877e/overview
Result
Verdict:
UNKNOWN
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/f5b67f11-18b7-4c98-a95a-5456d5eff46f
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1111950
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
DNS related to crypt mining pools
Found strings related to Crypto-Mining
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file has nameless sections
Sets debug register (to hijack the execution of another thread)
Tries to evade debugger and weak emulator (self modifying code)
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 744644 Sample: c4VhIacG9k.exe Startdate: 12/11/2022 Architecture: WINDOWS Score: 100 29 xmr-eu1.nanopool.org 2->29 35 Multi AV Scanner detection for domain / URL 2->35 37 Antivirus detection for URL or domain 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 4 other signatures 2->41 8 c4VhIacG9k.exe 5 2->8         started        signatures3 process4 file5 25 C:\ProgramData\WindowsMail\AVPTQBAEW.exe, MS-DOS 8->25 dropped 27 C:\Users\user\AppData\...\c4VhIacG9k.exe.log, CSV 8->27 dropped 43 Sets debug register (to hijack the execution of another thread) 8->43 45 Tries to evade debugger and weak emulator (self modifying code) 8->45 47 Adds a directory exclusion to Windows Defender 8->47 12 cmd.exe 1 8->12         started        14 powershell.exe 18 8->14         started        signatures6 process7 process8 16 AVPTQBAEW.exe 12->16         started        19 conhost.exe 12->19         started        21 timeout.exe 1 12->21         started        23 conhost.exe 14->23         started        signatures9 31 Detected unpacking (changes PE section rights) 16->31 33 Tries to evade debugger and weak emulator (self modifying code) 16->33
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2f4f507571ff0b863c431e03fc40893e651f2a887ed1db62f16ff84ad61aa07/
Threat name:
Win64.Spyware.Bobik
Create hunting rule
Status:
Malicious
First seen:
2022-11-12 18:24:12 UTC
File Type:
PE+ (Exe)
Extracted files:
46
AV detection:
16 of 26 (61.54%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wl2pkb2xd7ylqy6eghqd7raisptfd4viq7wr3nrpc37yjllbvidq._file
Verdict:
unknown
Similar samples:
0eebf99a370bae273ce4afb5cd4e361239c53bef88fc345220cdf6960d2c491f
CoinMiner
3e609c3712aa32c0496a09c203f3487d06f2947f4e729ef2715b2ff5989d5dd7
CoinMiner
4e5379b783c36ca07f22c4203d203616228c1cd4411c11aa52808033e24d2ece
CoinMiner
5dc72a06a4554b286374b223bbf1bfd2eb3884f3952088a1193f6fc770991a51
CoinMiner
92b790e2afdc33ba7f943f4a4abba407c124fb2d80fd744b7cbd90654bac9e1e
CoinMiner
b302f4f0f0f5f3f86497f005e73154e14afbccc13e1ebdfde664ab258a55cbbc
CoinMiner
f07483b6c09732c8d5e094bd2e2b405477ddbf8e220c12bd7982bc132cf44a04
CoinMiner
fba6bdb44712ea2035fe42cb16a2c717c99047cde6d779ce82c013633305bdae
CoinMiner
fec6af49d1a7c7b4bf3af5e663b80ff142788e7d79b312a2180ec7b8b89f18d9
CoinMiner
+ 2'156 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig miner
Link:
https://tria.ge/reports/221112-w12ccaca9x/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Uses the VBS compiler for execution
Executes dropped EXE
XMRig Miner payload
xmrig
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bb005b38-2fdf-42c4-aaa0-d7bec9221272
Unpacked files
SH256 hash:
b2f4f507571ff0b863c431e03fc40893e651f2a887ed1db62f16ff84ad61aa07
MD5 hash:
b12ac863eebbced5567dcceb954bc370
SHA1 hash:
4890f729e6c08442f508e18f58709f0afc9f98d3
Link:
https://www.unpac.me/results/6d5eaca6-cfec-46df-9f31-6fef56a72929/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b2f4f507571ff0b863c431e03fc40893e651f2a887ed1db62f16ff84ad61aa07

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:adonunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX
Rule name:BAZT_B5_NOCEXInvalidStream
Create hunting rule
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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:win_xfilesstealer_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.xfilesstealer.

File information

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

Web download

CoinMiner

Executable exe b2f4f507571ff0b863c431e03fc40893e651f2a887ed1db62f16ff84ad61aa07

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/333004/
  
URLhaus
https://urlhaus.abuse.ch/url/2408852/

Comments


Avatar
zbet commented on 2022-11-12 18:24:02 UTC

url : hxxps://smart.klarerp.com/svcrun.exe