MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9
SHA3-384 hash: 4513884d541b2760db68a985210a6ff01f844c7bf143441634b03e91b77939f4a113804d5d02b5142e043d999613358b
SHA1 hash: 5d944b9957d54698cb0319a3e65362435ef5885b
MD5 hash: 385e7b496b00ea29de872509cb29f5be
humanhash: finch-tennis-charlie-montana
File name:1732233184b4811bba0d47744362d41bafc1a303d700cc8709c5e216f86dee4148689507cc512.dat-decoded
Download: download sample
File size:66'013 bytes
First seen:2024-11-21 23:53:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 310c492a8d1880254f85610f1e667d02
ssdeep 1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIIIh:8g585LpPCrQt7F84IIIIIIIIIIIIIIIz
TLSH T19E53E0652B6689B4CED3813E33C33BE75C2D3B6462288689C0BD5DEF64AF6D4C414D19
TrID 34.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
23.4% (.EXE) Win32 Executable (generic) (4504/4/1)
10.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
10.5% (.EXE) OS/2 Executable (generic) (2029/13)
10.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
File icon (PE):PE icon
dhash icon aab2606469f096b3
Reporter abuse_ch
Tags:base64-decoded exe


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
470
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1732233184b4811bba0d47744362d41bafc1a303d700cc8709c5e216f86dee4148689507cc512.dat-decoded
Verdict:
Malicious activity
Analysis date:
2024-11-21 23:56:05 UTC
Tags:
torvil worm
Link:
https://app.any.run/tasks/62f5b555-0e4e-4250-bb8d-188b0b94ab41

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.Asprotect-3
Create hunting rule

PUA.Win.Packer.Aspack-29
Create hunting rule

PUA.Win.Packer.Aspack-30
Create hunting rule

Win.Worm.Torvil-1
Create hunting rule

Win.Worm.Torvil-3
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=673fc8add0583382434a46f1
Tags:
injection crypt worm
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the Windows directory
Reading critical registry keys
Creating a process from a recently created file
Creating a process with a hidden window
Creating a service
Launching a service
Searching for synchronization primitives
Creating a window
Creating a file in the Windows subdirectories
Searching for the window
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun with the shell\open\command registry branches
Blocking a possibility to launch for the Windows registry editor (regedit.exe)
Enabling autorun for a service
Enabling autorun
Enabling a "Do not show hidden files" option
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
aspack overlay packed packed packed packer_detected
Link:
https://www.filescan.io/uploads/673fc81a329f08a1b044106f/reports/3c0aba5f-a948-4727-95f8-c6f65834214a/overview
Verdict:
Malicious
Labled as:
Worm.Torvil
Link:
https://www.hybrid-analysis.com/sample/8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/518c6116-1a9c-48c4-953e-3425d70d529b
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1560588
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to detect sleep reduction / modifications
Creates an undocumented autostart registry key
Disables the Windows registry editor (regedit)
Drops executables to the windows directory (C:\Windows) and starts them
Drops HTML or HTM files to system directories
Drops PE files with benign system names
Found API chain indicative of debugger detection
Found evasive API chain (may stop execution after checking mutex)
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: System File Execution Location Anomaly
Tries to steal Mail credentials (via file / registry access)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1560588 Sample: 1732233184b4811bba0d4774436... Startdate: 22/11/2024 Architecture: WINDOWS Score: 100 66 Antivirus detection for dropped file 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 Machine Learning detection for sample 2->70 72 4 other signatures 2->72 7 1732233184b4811bba0d47744362d41bafc1a303d700cc8709c5e216f86dee4148689507cc512.dat-decoded.exe 4 5 2->7         started        11 svchost.exe 2->11         started        13 SMSSgp.exe 22 13 2->13         started        15 2 other processes 2->15 process3 file4 44 C:\Windows\svchost.exe, PE32 7->44 dropped 46 C:\Windows\SMSSgp.exe, PE32 7->46 dropped 48 C:\Windows\svchost.exe:Zone.Identifier, ASCII 7->48 dropped 50 C:\Windows\SMSSgp.exe:Zone.Identifier, ASCII 7->50 dropped 74 Found evasive API chain (may stop execution after checking mutex) 7->74 76 Creates an undocumented autostart registry key 7->76 78 Found API chain indicative of debugger detection 7->78 92 3 other signatures 7->92 17 SMSSgp.exe 1 1 7->17         started        80 Antivirus detection for dropped file 11->80 82 Multi AV Scanner detection for dropped file 11->82 84 Machine Learning detection for dropped file 11->84 20 SMSSgp.exe 11->20         started        22 SMSSgp.exe 11->22         started        24 SMSSgp.exe 11->24         started        52 C:\Windows\message.htm, MIME 13->52 dropped 54 C:\Windows\Temp\lxgtmaJi.QWs\message.htm, MIME 13->54 dropped 86 Tries to steal Mail credentials (via file / registry access) 13->86 88 Changes the view of files in windows explorer (hidden files and folders) 13->88 90 Drops HTML or HTM files to system directories 13->90 26 WerFault.exe 21 16 13->26         started        28 SMSSgp.exe 15->28         started        30 SMSSgp.exe 15->30         started        32 WerFault.exe 2 15->32         started        34 SMSSgp.exe 15->34         started        signatures5 process6 signatures7 56 Antivirus detection for dropped file 17->56 58 Multi AV Scanner detection for dropped file 17->58 60 Found evasive API chain (may stop execution after checking mutex) 17->60 64 3 other signatures 17->64 36 SMSSgp.exe 20->36         started        38 SMSSgp.exe 20->38         started        62 Drops executables to the windows directory (C:\Windows) and starts them 28->62 40 SMSSgp.exe 28->40         started        42 SMSSgp.exe 28->42         started        process8
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9/
Threat name:
Win32.Worm.Torvil
Create hunting rule
Status:
Malicious
First seen:
2024-11-21 23:54:03 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qfu5oo2a5zxidj5lboxc6plwcebnaodxhboq7uwcn6ls5eqqvwuq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
aspackv2 discovery evasion persistence
Link:
https://tria.ge/reports/241121-3xvhysznex/
Behaviour
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
ASPack v2.12-2.42
Executes dropped EXE
Modifies system executable filetype association
Disables RegEdit via registry modification
Modifies WinLogon for persistence
Modifies visiblity of hidden/system files in Explorer
Verdict:
Malicious
Tags:
Win.Worm.Torvil-1
YARA:
n/a
Link:
https://app.threat.zone/submission/83d900d1-3f76-423e-bb7e-4b092b08f451
Unpacked files
SH256 hash:
8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9
MD5 hash:
385e7b496b00ea29de872509cb29f5be
SHA1 hash:
5d944b9957d54698cb0319a3e65362435ef5885b
Link:
https://www.unpac.me/results/b9326d68-bd3b-4d45-be60-7a2041d9cf9e/
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/8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9

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:ASPackv212AlexeySolodovnikov
Create hunting rule
Author:malware-lu
Rule name:ASProtectV2XDLLAlexeySolodovnikov
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
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

PowerShell (PS) ps1 b4811bba0d47744362d41bafc1a303d700cc8709c5e216f86dee4148689507cc

Executable exe 8169d73b40ee6e81a7ab0bae2f3d761102d03877385d0fd2c26f972e9210ada9

(this sample)

  
Dropped by
SHA256 b4811bba0d47744362d41bafc1a303d700cc8709c5e216f86dee4148689507cc
  
Dropped by
MD5 56152bcbac11eaba6549445f86a04d5b
  
URLhaus
https://urlhaus.abuse.ch/url/3296042/
  
Delivery method
Distributed via web download

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::SHFileOperationA
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_NETWORK_APISupports Windows Networkingmpr.dll::WNetOpenEnumA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegQueryValueExA
advapi32.dll::RegSetValueExA
WIN_SVC_APICan Manipulate Windows Servicesadvapi32.dll::StartServiceA
WIN_USER_APIPerforms GUI Actionsuser32.dll::CreateWindowExA

Comments