MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287. 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


Ousaban


Vendor detections: 7


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

SHA256 hash: 99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287
SHA3-384 hash: 3831bd31bf565c9568d8e3e3aa613bf3ad698c6eb1c61806094a54eb9c06208b8679e4866a6b587a402468012bc096a8
SHA1 hash: aee3e2b0638e917a1ae563d3e30cd23df63cccae
MD5 hash: bdb578824535cddfcd2e16e0eaa90fcd
humanhash: tennessee-three-ack-apart
File name:STARBURN.DLL
Download: download sample
Signature Ousaban
Create hunting rule
File size:18'081'792 bytes
First seen:2024-06-07 10:49:06 UTC
Last seen:2024-06-07 11:31:04 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash 0f1f42b555697ce7017a298aec4d028a (2 x Ousaban)
ssdeep 393216:lZCd+LI2rkC7hxkBYV4qzevsBh5v7ZhkYhKXWqxlW:LCd+c67hxeH6KN7W
TLSH T14907335939DB40EDD5D158B94707B7E322F392A609A20839BEC53ACE70F1FF0601A997
TrID 49.9% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win32 Executable (generic) (4504/4/1)
9.6% (.EXE) OS/2 Executable (generic) (2029/13)
9.5% (.EXE) Generic Win/DOS Executable (2002/3)
9.4% (.EXE) DOS Executable Generic (2000/1)
Reporter NDA0E
Tags:dll dllHijack mekoban ousaban ponteiro


Avatar
NDA0E
Loaded by cdpower.exe via DLL Sideloading

C2s:
http://109.110.184.31/exercito/inspecionando.php
https://ebaoffice.com.br/imagens/bo/inspecionando.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
349
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.SpywareX-gen.18235.330.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1453625
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Overwrites code with function prologues
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file contains section with special chars
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287/
Threat name:
Win32.Trojan.SpywareX
Create hunting rule
Status:
Malicious
First seen:
2024-06-07 10:13:10 UTC
File Type:
PE (Dll)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tg5eiwv7qb62jciawn7cxkpl6lhp5vp4qwzklc7jjwb7ibzhokdq._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/240607-mw9y9afb3t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287
MD5 hash:
bdb578824535cddfcd2e16e0eaa90fcd
SHA1 hash:
aee3e2b0638e917a1ae563d3e30cd23df63cccae
Link:
https://www.unpac.me/results/3d123c4b-8d37-4495-a3ac-aa3fce4751b9/
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/99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Ousaban

Microsoft Software Installer (MSI) msi 7da1c2eddf3d235b091a336eed6b562b32eed56d854bba2ca25d68004a51675b

Ousaban

DLL dll 99ba445abf807da48900b37e2ba9ebf2cefed5fc85b2a58be94d83f407277287

(this sample)

  
Dropped by
SHA256 7da1c2eddf3d235b091a336eed6b562b32eed56d854bba2ca25d68004a51675b
  
Dropped by
MD5 0cf43aa4526ff72c559cf336be5859f9

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
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadswininet.dll::InternetCloseHandle
WIN_BASE_IO_APICan Create Filesversion.dll::GetFileVersionInfoSizeW
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegSetValueExW

Comments