MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2dcb65f18ee5ff985d4448c2bc01ecff8c1e379d969ef09591789dde8dd1d534. 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



Stop


Vendor detections: 14


Intelligence 14 IOCs YARA 15 File information Comments

SHA256 hash: 2dcb65f18ee5ff985d4448c2bc01ecff8c1e379d969ef09591789dde8dd1d534
SHA3-384 hash: 2c561ed11d43f1e7a0dcb5df11233965550f9d284e9c9d79132a092ddf9dba035286f2d95c3cdb52c601e012e4ad0605
SHA1 hash: 46f30dd561d328e61261ebe13f86340d0641de68
MD5 hash: 89f6a0761eb024c46520a74abb7868a9
humanhash: low-eleven-golf-blossom
File name:file
Download: download sample
Signature Stop
File size:861'696 bytes
First seen:2023-12-10 17:34:15 UTC
Last seen:2023-12-10 22:57:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 150451e02d49e46634c10e914db67920 (4 x Smoke Loader, 2 x Stealc, 2 x Amadey)
ssdeep 24576:5RvxJ2drWwS/kpBuOYNT0CpzbyfaQBQ246qgBvk:7vxJ2EwS/kpn6h246Vk
Threatray 2'201 similar samples on MalwareBazaar
TLSH T1BB05F11393D07C21E7278A72AE6E86F4661EB5604F5B7BEB635C9E2F05711E2C1B2301
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0000020202031101 (1 x Stop)
Reporter andretavare5
Tags:exe Stop


Avatar
andretavare5
Sample downloaded from https://vk.com/doc418490229_669420920?hash=VDC6u0n8bNBNpC9sPKyAUu9m1fzLjRcgy2aJm0vTrps&dl=4wqZAryups2nb9nTZwrgx9YGW3edgZ2U71OLsL7ZX8D&api=1&no_preview=1#test22

Intelligence


File Origin
# of uploads :
16
# of downloads :
299
Origin country :
US US
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Sending an HTTP GET request
Creating a file
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
Searching for synchronization primitives
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin packed xpack
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
STOP Ransomware
Verdict:
Malicious
Result
Threat name:
Babuk, Djvu
Detection:
malicious
Classification:
rans.spre.troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Snort IDS alert for network traffic
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Babuk Ransomware
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1357517 Sample: file.exe Startdate: 10/12/2023 Architecture: WINDOWS Score: 100 57 zexeq.com 2->57 59 api.2ip.ua 2->59 65 Snort IDS alert for network traffic 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 6 other signatures 2->71 9 file.exe 2->9         started        12 file.exe 2->12         started        14 file.exe 2->14         started        16 file.exe 2->16         started        signatures3 process4 signatures5 77 Detected unpacking (changes PE section rights) 9->77 79 Detected unpacking (overwrites its own PE header) 9->79 81 Writes a notice file (html or txt) to demand a ransom 9->81 87 2 other signatures 9->87 18 file.exe 1 17 9->18         started        83 Machine Learning detection for dropped file 12->83 85 Injects a PE file into a foreign processes 12->85 22 file.exe 19 12->22         started        25 file.exe 14->25         started        27 file.exe 16->27         started        process6 dnsIp7 61 api.2ip.ua 172.67.139.220, 443, 49729, 49730 CLOUDFLARENETUS United States 18->61 39 C:\Users\user\AppData\Local\...\file.exe, PE32 18->39 dropped 29 file.exe 18->29         started        32 icacls.exe 18->32         started        41 C:\Users\user\_readme.txt, ASCII 22->41 dropped 43 C:\Users\user\Desktop\VLZDGUKUTZ.docx, data 22->43 dropped 45 C:\Users\user\Desktop\UMMBDNEQBN.xlsx, data 22->45 dropped 47 2 other malicious files 22->47 dropped 75 Modifies existing user documents (likely ransomware behavior) 22->75 file8 signatures9 process10 signatures11 89 Injects a PE file into a foreign processes 29->89 34 file.exe 1 17 29->34         started        process12 dnsIp13 63 zexeq.com 211.181.24.133, 49732, 49733, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 34->63 49 C:\_readme.txt, ASCII 34->49 dropped 51 C:\Users\user\AppData\...\ls-archive.sqlite, data 34->51 dropped 53 915DEAC5D1E15E4964...04E470958C9BB89.crl, data 34->53 dropped 55 48 other malicious files 34->55 dropped 73 Infects executable files (exe, dll, sys, html) 34->73 file14 signatures15
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2023-12-10 20:37:38 UTC
AV detection:
17 of 22 (77.27%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Modifies file permissions
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://zexeq.com/test2/get.php
Unpacked files
SH256 hash:
8b5f5dcc28048e14ddb87be8aa96018b9facba04613441f364c9b272071eacb5
MD5 hash:
434743c723b15b88d501b6b57774bd16
SHA1 hash:
0d1f681480e47a4021479aef5f9b441baed75535
Detections:
djvu_ransomware win_stop_auto SUSP_XORed_URL_In_EXE MALWARE_Win_STOP
SH256 hash:
2dcb65f18ee5ff985d4448c2bc01ecff8c1e379d969ef09591789dde8dd1d534
MD5 hash:
89f6a0761eb024c46520a74abb7868a9
SHA1 hash:
46f30dd561d328e61261ebe13f86340d0641de68
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MALWARE_Win_STOP
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_XORed_URL_In_EXE
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Windows_Ransomware_Stop_1e8d48ff
Author:Elastic Security
Rule name:Windows_Trojan_Smokeloader_ea14b2a5
Author:Elastic Security
Rule name:win_stop_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.

File information


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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

Comments