MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42a889b58058605ab9ed440ac71acfd607441fa41277a3549a2be446dd2552cc. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42a889b58058605ab9ed440ac71acfd607441fa41277a3549a2be446dd2552cc
SHA3-384 hash: c393a97d6832a242cd8c16706d0c24d6ad5646feee83fed0a2b7ed7d75d45b3e896e6b34e1b8babc3c3a94d0d2ab7492
SHA1 hash: 1157ccf838ddfa008433756e717767f458262891
MD5 hash: 3f44d752bae1088e80da33fb347aaab8
humanhash: don-thirteen-jig-lake
File name:file.exe
Download: download sample
Signature CoinMiner
Create hunting rule
File size:14'352'304 bytes
First seen:2023-04-25 00:23:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 35a81d16af9f2ba6d515f11152d0364b (57 x CoinMiner, 2 x CobaltStrike)
ssdeep 393216:3iVaLvTzIErk836L3FLgG8X34MU9DSx5k:3iVaPzIgkm6L234MU9ci
TLSH T18BE6BFE623C1154CC2C6C935AA10B9BAB5AF74D1873E5A6331C42D73AEA7EB03D1670D
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)
File icon (PE):PE icon
dhash icon d0f0ccc4c4ccb0d4 (1 x CoinMiner)
Reporter Chainskilabs
Tags:CoinMiner exe signed

Intelligence

File Origin
# of uploads :
1
# of downloads :
296
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-04-25 00:25:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d46eade9-6134-4a4d-bad3-7cdddcd06239

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.10931.7680.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for analyzing tools
Searching for the window
Launching a process
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a file in the Program Files subdirectories
Creating a process from a recently created file
Changing the hosts file
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed packed
Link:
https://www.filescan.io/uploads/64471da35ff821708a446b69/reports/f960aff7-8fdc-4124-8e9b-4ab295cb230f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/42a889b58058605ab9ed440ac71acfd607441fa41277a3549a2be446dd2552cc
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0b239e40-92ba-4af7-a429-ebc5b03363dd
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
adwa.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1220336
Signature
Adds a directory exclusion to Windows Defender
Creates files in the system32 config directory
Found hidden mapped module (file has been removed from disk)
Hides threads from debuggers
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 power options to not sleep / hibernate
Modifies the context of a thread in another process (thread injection)
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Protects its processes via BreakOnTermination flag
Query firmware table information (likely to detect VMs)
Sample is not signed and drops a device driver
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Uses powercfg.exe to modify the power settings
Writes to foreign memory regions
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 853282 Sample: file.exe Startdate: 25/04/2023 Architecture: WINDOWS Score: 100 54 Malicious sample detected (through community Yara rule) 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 5 other signatures 2->60 6 updater.exe 4 2->6         started        10 file.exe 1 2->10         started        12 cmd.exe 1 2->12         started        14 10 other processes 2->14 process3 file4 36 C:\Windows\Temp\rzwzcvkgcsub.tmp, PE32+ 6->36 dropped 38 C:\Program Filesbehaviorgraphoogle\Libs\WR64.sys, PE32+ 6->38 dropped 62 Query firmware table information (likely to detect VMs) 6->62 64 Protects its processes via BreakOnTermination flag 6->64 66 Injects code into the Windows Explorer (explorer.exe) 6->66 80 5 other signatures 6->80 16 explorer.exe 6->16         started        20 conhost.exe 6->20         started        40 C:\Program Filesbehaviorgraphoogle\Chrome\updater.exe, PE32+ 10->40 dropped 42 C:\Windows\System32\drivers\etc\hosts, ASCII 10->42 dropped 68 Modifies the hosts file 10->68 70 Adds a directory exclusion to Windows Defender 10->70 72 Hides threads from debuggers 10->72 74 Uses powercfg.exe to modify the power settings 12->74 76 Modifies power options to not sleep / hibernate 12->76 22 conhost.exe 12->22         started        24 sc.exe 1 12->24         started        32 4 other processes 12->32 78 Creates files in the system32 config directory 14->78 26 powercfg.exe 1 14->26         started        28 conhost.exe 14->28         started        30 conhost.exe 14->30         started        34 19 other processes 14->34 signatures5 process6 dnsIp7 44 xmr.2miners.com 162.19.139.184, 12222, 49700 CENTURYLINK-US-LEGACY-QWESTUS United States 16->44 46 System process connects to network (likely due to code injection or exploit) 16->46 48 Query firmware table information (likely to detect VMs) 16->48 50 Adds a directory exclusion to Windows Defender 20->50 52 Modifies power options to not sleep / hibernate 26->52 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42a889b58058605ab9ed440ac71acfd607441fa41277a3549a2be446dd2552cc/
Threat name:
Win64.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-04-24 19:57:19 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ikuitnmalbqfvopniqfmogwp2yduih5ecj32gve2fpsenxjfklga._file
Verdict:
malicious
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig evasion miner themida trojan
Link:
https://tria.ge/reports/230425-ap2m3shb6z/
Behaviour
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
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 NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Checks BIOS information in registry
Executes dropped EXE
Loads dropped DLL
Themida packer
Drops file in Drivers directory
Stops running service(s)
Identifies VirtualBox via ACPI registry values (likely anti-VM)
XMRig Miner payload
Suspicious use of NtCreateUserProcessOtherParentProcess
xmrig
Unpacked files
SH256 hash:
42a889b58058605ab9ed440ac71acfd607441fa41277a3549a2be446dd2552cc
MD5 hash:
3f44d752bae1088e80da33fb347aaab8
SHA1 hash:
1157ccf838ddfa008433756e717767f458262891
Link:
https://www.unpac.me/results/93f0e789-5c20-4016-9925-f592dfc8c35a/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/42a889b58058/report/overview.html
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/42a889b58058605ab9ed440ac71acfd607441fa41277a3549a2be446dd2552cc

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:INDICATOR_EXE_Packed_Themida
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Themida
Rule name:INDICATOR_EXE_Packed_VMProtect
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with VMProtect.
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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 42a889b58058605ab9ed440ac71acfd607441fa41277a3549a2be446dd2552cc

(this sample)

  
Delivery method
Distributed via web download

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