MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c38af4b06807357d05314ee8c251f3de39234a3a7c9d1aee05863703428dca01. 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


SharkStealer


Vendor detections: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c38af4b06807357d05314ee8c251f3de39234a3a7c9d1aee05863703428dca01
SHA3-384 hash: 98867dc19aceec336292643db36e0a60382cebac97a1d4fb97f30a9b95bfe2d7bef45a60261a3679514efd2d3ddb9089
SHA1 hash: 7aef63bd187b4e5dd5b842aea257d950b6f0127c
MD5 hash: 181b109542adee3651b5edf8d29661f9
humanhash: colorado-connecticut-magazine-princess
File name:shrk.bin
Download: download sample
Signature SharkStealer
Create hunting rule
File size:20'487'616 bytes
First seen:2025-07-14 13:53:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e2fdf6fad5a1568889ba34bc3d007260 (1 x SharkStealer)
ssdeep 393216:xcDOJc5tnKIsCQNHhTiecHqa0T7LrRd+y7G4mD9NstGD/ztH4yycPPY4FWJjgDc2:I
TLSH T1482772EFE837B0DFE17802BD04E837189C6D79646E838D3E609887E84B1571629D467B
TrID 45.5% (.EXE) Win64 Executable (generic) (10522/11/4)
19.4% (.EXE) Win32 Executable (generic) (4504/4/1)
8.9% (.ICL) Windows Icons Library (generic) (2059/9)
8.7% (.EXE) OS/2 Executable (generic) (2029/13)
8.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon f0962b6152768ef0 (1 x SharkStealer)
Reporter aachum
Tags:84-54-44-48 dropped-by-ACRStealer exe Shark SharkStealer


Avatar
iamaachum
http://193.32.176.219/shrk.bin

Intelligence

File Origin
# of uploads :
1
# of downloads :
28
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
shrk.bin
Verdict:
Malicious activity
Analysis date:
2025-07-14 13:54:58 UTC
Tags:
auto-reg
Link:
https://app.any.run/tasks/07ba3509-974d-4adf-8f5c-eb7270e59b0b

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/14244/
Verdict:
Clean
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68750c1b900df8e7f86a9adb
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Connection attempt
Sending a custom TCP request
Changing a file
Creating a file in the %AppData% subdirectories
Creating a window
Setting a single autorun event
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature mingw signed
Link:
https://www.filescan.io/uploads/68750c20a15b22faa8b13aef/reports/94721a57-0366-4188-b4a7-a3f01d3d190e/overview
Verdict:
Malicious
Labled as:
GenKryptik.HKLK trojan
Link:
https://www.hybrid-analysis.com/sample/c38af4b06807357d05314ee8c251f3de39234a3a7c9d1aee05863703428dca01
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1736095
Signature
Connects to many ports of the same IP (likely port scanning)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1736095 Sample: shrk.bin.exe Startdate: 14/07/2025 Architecture: WINDOWS Score: 56 24 x.ss2.us 2->24 26 windowsupdateorg.live 2->26 28 3 other IPs or domains 2->28 36 Multi AV Scanner detection for submitted file 2->36 38 Connects to many ports of the same IP (likely port scanning) 2->38 40 Joe Sandbox ML detected suspicious sample 2->40 8 shrk.bin.exe 1 25 2->8         started        12 SharkBrowser.exe 2->12         started        14 SharkBrowser.exe 2->14         started        signatures3 process4 dnsIp5 30 84.54.44.48, 49730, 49733, 54000 DZINET-ASRU Russian Federation 8->30 32 windowsupdateorg.live 104.21.66.112, 49728, 80 CLOUDFLARENETUS United States 8->32 34 3 other IPs or domains 8->34 22 C:\ProgramData\SharkBrowser.exe, PE32 8->22 dropped 16 cmd.exe 1 8->16         started        file6 process7 process8 18 conhost.exe 16->18         started        20 reg.exe 1 1 16->20         started       
Score:
0%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/c38af4b06807357d05314ee8c251f3de39234a3a7c9d1aee05863703428dca01
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) Win 32 Exe x86
Link:
https://app.malva.re/file/181b109542adee3651b5edf8d29661f9
Gathering data
Threat name:
Win32.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2025-07-14 14:39:26 UTC
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yofpjmdia42x2bjrj3umeupt3y4sgsr2psorv3qfqy3qgqunziaq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery persistence spyware trojan
Link:
https://tria.ge/reports/250714-q7q73aspx3/
Behaviour
Modifies registry key
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Adds Run key to start application
Executes dropped EXE
Verdict:
Malicious
Tags:
TA_Abused_Service
YARA:
n/a
Link:
https://app.threat.zone/submission/5d572fed-76d9-4921-96e3-581a9ed71b6a
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

SharkStealer

Executable exe c38af4b06807357d05314ee8c251f3de39234a3a7c9d1aee05863703428dca01

(this sample)

  
Link
https://tria.ge/250714-q38ljssydv/behavioral2
  
Dropped by
ACRStealer
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3581740/
Cape
Cape
https://www.capesandbox.com/analysis/14244/

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
CHECK_TRUST_INFORequires Elevated Execution (uiAccess:None)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::GetConsoleWindow

Comments