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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7dac55cda93bc09dd7f11b192320b837cb7ea0383a81decb837632e489b0ef89. 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


SourShark


Vendor detections: 9


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7dac55cda93bc09dd7f11b192320b837cb7ea0383a81decb837632e489b0ef89
SHA3-384 hash: b89c8a81e1ec0954353375b2045da8f7e55a146ad1da4e0ed36035abeab6dd2a851e7ef8a1b694c8b6ec1e7b94c71185
SHA1 hash: b6e5906f5aa45b4b5f57dc70e51a2109b5cefe33
MD5 hash: f5668db487854b177f18195342ce520b
humanhash: massachusetts-oscar-march-london
File name:setup.msi
Download: download sample
Signature SourShark
Create hunting rule
File size:62'187'008 bytes
First seen:2025-02-02 20:13:17 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 1572864:B+8VmrjV7eILEOTZ2caK4+D38tYoJnFCrRNGXTb33:wDwcoqWYo+NGXP33
Threatray 139 similar samples on MalwareBazaar
TLSH T13BD76C01B3FA4148F2F75EB17EBA55B594BABD521B30C0EF1204A60E1A71BC25BB1763
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter smica83
Tags:HUN msi SourShark

Intelligence

File Origin
# of uploads :
1
# of downloads :
136
Origin country :
HU HU
Vendor Threat Intelligence
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679fd21e2dcee78dd819126e
Tags:
virus spawn hype
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm anti-vm cmd evasive fingerprint fingerprint lolbin packed packed remote wix
Link:
https://www.filescan.io/uploads/679fd2193a4118f0a76157d8/reports/7e11c61c-fea2-45c4-8d49-bbfdefe9c0ba/overview
Verdict:
Malicious
Labled as:
TR/Drop.Agent
Link:
https://www.hybrid-analysis.com/sample/7dac55cda93bc09dd7f11b192320b837cb7ea0383a81decb837632e489b0ef89
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1605143
Signature
Contains functionality to inject code into remote processes
Found direct / indirect Syscall (likely to bypass EDR)
Hides threads from debuggers
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file contains section with special chars
Potentially malicious time measurement code found
System process connects to network (likely due to code injection or exploit)
Tries to detect debuggers (CloseHandle check)
Tries to evade analysis by execution special instruction (VM detection)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1605143 Sample: setup.msi Startdate: 02/02/2025 Architecture: WINDOWS Score: 100 45 eeapkz.com 2->45 49 Multi AV Scanner detection for dropped file 2->49 51 PE file contains section with special chars 2->51 53 Contains functionality to inject code into remote processes 2->53 55 3 other signatures 2->55 8 msiexec.exe 135 101 2->8         started        11 msiexec.exe 2 2->11         started        signatures3 process4 file5 37 C:\Windows\Installer\MSI48B.tmp, PE32 8->37 dropped 39 C:\Windows\Installer\MSI45B.tmp, PE32 8->39 dropped 41 C:\Windows\Installer\MSI42B.tmp, PE32 8->41 dropped 43 49 other files (12 malicious) 8->43 dropped 13 obs-ffmpeg-mux.exe 1 1 8->13         started        16 UnRar.exe 3 8->16         started        19 createdump.exe 1 8->19         started        21 msiexec.exe 8->21         started        process6 file7 59 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 13->59 61 Injects code into the Windows Explorer (explorer.exe) 13->61 63 Writes to foreign memory regions 13->63 65 4 other signatures 13->65 23 explorer.exe 13->23         started        27 conhost.exe 13->27         started        29 WerFault.exe 2 13->29         started        35 C:\Users\user\AppData\Roaming\...\obs.dll, PE32+ 16->35 dropped 31 conhost.exe 16->31         started        33 conhost.exe 19->33         started        signatures8 process9 dnsIp10 47 eeapkz.com 169.150.247.37, 49735, 80 SPIRITTEL-ASUS United States 23->47 57 System process connects to network (likely due to code injection or exploit) 23->57 signatures11
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/7dac55cda93bc09dd7f11b192320b837cb7ea0383a81decb837632e489b0ef89
Gathering data
Threat name:
Win32.Infostealer.Tinba
Create hunting rule
Status:
Malicious
First seen:
2025-02-02 07:40:08 UTC
File Type:
Binary (Archive)
Extracted files:
697
AV detection:
8 of 38 (21.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pwwfltnjhpaj3v7rdmmsgifyg7fx5ibyhka55s4doyzojcnq56eq._file
Verdict:
malicious
Label(s):
sourshark
Create hunting rule
Similar samples:
3f84979ca8de7378a2f963ebb84923d631d36db6eaefa88365081da9d71586e8
SourShark
50fa7ac33819cfe08bd46f7e7261dc0abf075b96c005d47c49b62238f7a09073
SourShark
62f740ee34e5f426b8591bab23229722d77ebf16a0c5717fe1ba7977c00bb73b
SourShark
7dac55cda93bc09dd7f11b192320b837cb7ea0383a81decb837632e489b0ef89
SourShark
bdfecf574ba864ad209ae5e7f1ef57fcc6c461f46e9fd8f21d94cb9312ec9a45
SourShark
ce94ab782a6ddf1502903d5a1e6d18813944a9cebce9b65724d0ac6853bad940
SourShark
error
SourShark
+ 129 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery persistence privilege_escalation
Link:
https://tria.ge/reports/250202-yz29csypcq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Enumerates connected drives
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/15bbc5d4-0bcd-48e6-82cd-f969eb6a4170
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: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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Windows_Trojan_SourShark_f0247cce
Create hunting rule
Author:Elastic Security

File information

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

Comments