MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7efca5d1cbdc8b4d5d113865af0b2eb04396cca2653c269831d207a239e83d8. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7efca5d1cbdc8b4d5d113865af0b2eb04396cca2653c269831d207a239e83d8
SHA3-384 hash: b74036df1f8d508799ca82854c8fd7e2f766988dfff59b3e12baca5bb471b2e2f5a3d6e84b88be63507eb3649eeec2fd
SHA1 hash: 81c75101289e7bd173f352f5cc68039f11b0adee
MD5 hash: 1aef1e8c91d79b8c78dd6d73928cdc59
humanhash: alanine-illinois-finch-carpet
File name:1aef1e8c91d79b8c78dd6d73928cdc59.exe
Download: download sample
Signature CoinMiner
Create hunting rule
File size:9'122'304 bytes
First seen:2023-05-13 06:12:42 UTC
Last seen:2023-05-13 20:27:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash baa93d47220682c04d92f7797d9224ce (139 x RiseProStealer, 26 x Xtrat, 18 x CoinMiner)
ssdeep 196608:YIptQCD1kd5y25V2t/T2xWxTXhxTd9y0tdaMgJPA:YIpGCRqFz2t/6xWhVy0u14
Threatray 955 similar samples on MalwareBazaar
TLSH T156963346DB4A5201FE51D8F34690F77092B15AC1926F80646AF33EE923BB85FDA313B1
TrID 38.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.6% (.ICL) Windows Icons Library (generic) (2059/9)
15.4% (.EXE) OS/2 Executable (generic) (2029/13)
15.2% (.EXE) Generic Win/DOS Executable (2002/3)
15.2% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon 0aca65515971b2c2 (5 x CoinMiner)
Reporter abuse_ch
Tags:CoinMiner exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
293
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1aef1e8c91d79b8c78dd6d73928cdc59.exe
Verdict:
Malicious activity
Analysis date:
2023-05-13 06:16:51 UTC
Tags:
miner
Link:
https://app.any.run/tasks/265077a8-1048-4a5d-b1d4-2e45e29cee68

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/388846/
Detection(s):
SecuriteInfo.com.Win64.Trojan-gen.21569.26506.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for analyzing tools
Searching for the window
Launching a process
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Running batch commands
Creating a file in the %temp% directory
Searching for synchronization primitives
Reading critical registry keys
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/645f2a72ad8185420f897004/reports/c2be7ed4-6eb0-4220-a2d5-d8a8c0a9e78b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a7efca5d1cbdc8b4d5d113865af0b2eb04396cca2653c269831d207a239e83d8
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/9c7f990c-f988-4a8e-96fd-0174df4b5d55
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1232023
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Changes security center settings (notifications, updates, antivirus, firewall)
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)
Detected unpacking (changes PE section rights)
Found hidden mapped module (file has been removed from disk)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sample is not signed and drops a device driver
Sigma detected: Stop multiple services
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to evade debugger and weak emulator (self modifying code)
Uses powercfg.exe to modify the power settings
Writes to foreign memory regions
Yara detected PersistenceViaHiddenTask
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 865005 Sample: l1s8e5bZUU.exe Startdate: 13/05/2023 Architecture: WINDOWS Score: 100 58 Malicious sample detected (through community Yara rule) 2->58 60 Multi AV Scanner detection for dropped file 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 6 other signatures 2->64 8 l1s8e5bZUU.exe 3 2->8         started        12 cmd.exe 1 2->12         started        14 cmd.exe 1 2->14         started        16 6 other processes 2->16 process3 file4 52 C:\Users\user\AppData\...\OneDrive.exe, PE32+ 8->52 dropped 54 C:\Users\user\AppData\...\wpvditjplmzx.tmp, PE32+ 8->54 dropped 76 Detected unpacking (changes PE section rights) 8->76 78 Writes to foreign memory regions 8->78 80 Modifies the context of a thread in another process (thread injection) 8->80 86 4 other signatures 8->86 18 dialer.exe 1 8->18         started        82 Uses powercfg.exe to modify the power settings 12->82 84 Modifies power options to not sleep / hibernate 12->84 21 conhost.exe 12->21         started        33 5 other processes 12->33 23 conhost.exe 14->23         started        25 powercfg.exe 1 14->25         started        35 3 other processes 14->35 27 conhost.exe 16->27         started        29 conhost.exe 16->29         started        31 conhost.exe 16->31         started        signatures5 process6 signatures7 66 Injects code into the Windows Explorer (explorer.exe) 18->66 68 Contains functionality to inject code into remote processes 18->68 70 Writes to foreign memory regions 18->70 72 4 other signatures 18->72 37 svchost.exe 18->37 injected 39 lsass.exe 6 18->39 injected 42 winlogon.exe 18->42 injected 44 17 other processes 18->44 process8 signatures9 46 OneDrive.exe 5 37->46         started        74 Writes to foreign memory regions 39->74 50 svchost.exe 39->50         started        process10 file11 56 C:\Users\user\AppData\Roaming\...\WR64.sys, PE32+ 46->56 dropped 88 Multi AV Scanner detection for dropped file 46->88 90 Detected unpacking (changes PE section rights) 46->90 92 Tries to detect sandboxes and other dynamic analysis tools (window names) 46->92 96 8 other signatures 46->96 94 Changes security center settings (notifications, updates, antivirus, firewall) 50->94 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7efca5d1cbdc8b4d5d113865af0b2eb04396cca2653c269831d207a239e83d8/
Threat name:
Win64.Trojan.Miner
Create hunting rule
Status:
Malicious
First seen:
2023-05-12 14:52:54 UTC
File Type:
PE+ (Exe)
Extracted files:
20
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u7x4uxi4xxeljvorcodfv4fs5mcds3gkezj4e2mdduqhui46qpma._file
Verdict:
malicious
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CoinMiner
+ 945 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/230513-gyr9bshh3z/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks BIOS information in registry
Executes dropped EXE
Loads dropped DLL
Sets service image path in registry
Stops running service(s)
Suspicious use of NtCreateUserProcessOtherParentProcess
Unpacked files
SH256 hash:
a7efca5d1cbdc8b4d5d113865af0b2eb04396cca2653c269831d207a239e83d8
MD5 hash:
1aef1e8c91d79b8c78dd6d73928cdc59
SHA1 hash:
81c75101289e7bd173f352f5cc68039f11b0adee
Link:
https://www.unpac.me/results/64f16d55-c2a5-4514-b385-0ab0a1cb4b86/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7efca5d1cbd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Web download

CoinMiner

Executable exe a7efca5d1cbdc8b4d5d113865af0b2eb04396cca2653c269831d207a239e83d8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2630008/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/388846/

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