MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864. 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


Threat unknown


Vendor detections: 10


Intelligence 10 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864
SHA3-384 hash: e0a56ae390de12c42d26fe28d00281bf6984960e3a846fdc65b2cebdf7c7f46b9239b60f213a59a52eef1a13787e8bfc
SHA1 hash: bc4455f9573327bc25c568575c33b16532cad9da
MD5 hash: 4426ea801a3320614c8c2fa91aa9a0d3
humanhash: summer-blue-lactose-cola
File name:opnst.exe
Download: download sample
File size:464'219 bytes
First seen:2025-03-02 20:03:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7e0a0e8f80bbd1a9c0078e57256f1c3d (5 x GCleaner, 4 x LummaStealer, 3 x CoinMiner)
ssdeep 6144:nz1eXfQ+IqV6EL8aVh3ZqK8DN/ya7cLyMO84+c4Edd47BXAFk/yDwZpLptmZM5lb:kngM8K8P4ElXddah8kyDIZ5a+
TLSH T103A48D0AE7E804F8E0B7E17889564943E37A7C4D1771D78F13A966562F233A09E3DB21
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter Anonymous
Tags:badjoke BadSFX exe rar sfx SFX-Evil tip.neiki.dev


Avatar
Anonymous
The self-extracting archive cyclically opens itself and the unpacked file, which causes overload.

Intelligence

File Origin
# of uploads :
1
# of downloads :
534
Origin country :
RU RU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
opnst.exe
Verdict:
Malicious activity
Analysis date:
2025-03-02 19:43:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/eac975d7-c13b-4935-8503-bb49fc73ffbf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Bladabindi-10017056-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c4b4d5c668b65489be70bc
Tags:
injection shell sage
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Running batch commands
Restart of the analyzed sample
Launching a process
Searching for the browser window
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm fingerprint installer microsoft_visual_cc obfuscated overlay packed packer_detected sfx
Link:
https://www.filescan.io/uploads/67c4b98025afd1330131eb99/reports/37ea814c-6eee-46ac-a6f7-0a2a4648a544/overview
Verdict:
Suspicious
Labled as:
Packed.Bladabindi
Link:
https://www.hybrid-analysis.com/sample/cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864
Result
Verdict:
SUSPICIOUS
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/01200fe2-a121-44cc-8f62-b28ee2e799b1
Result
Threat name:
n/a
Detection:
clean
Classification:
n/a
Score:
8 / 100
Link:
https://www.joesandbox.com/analysis/1627603
Behaviour
Behavior Graph:
n/a
Score:
27%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=znrlekm2y4iksfnq72ee2a77pjkbogfy6xmbpljutq6ryhdrvbsa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/250302-ysq8hstlx5/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
Verdict:
Malicious
Tags:
Win.Packed.Bladabindi-10017056-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c82d7f31-968f-4af7-b185-dd74fb891b38
Unpacked files
SH256 hash:
cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864
MD5 hash:
4426ea801a3320614c8c2fa91aa9a0d3
SHA1 hash:
bc4455f9573327bc25c568575c33b16532cad9da
Link:
https://www.unpac.me/results/5291c8a5-6646-4d4d-a7c3-4660407efc56/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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.

  
Link
https://tip.neiki.dev/file/cb62b2299ac710a915b0fe884d03ff7a541718b8f5d817ad349c3d1c1c71a864
  
Delivery method
Other

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 (FORCE_INTEGRITY)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipAlloc
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW

Comments