MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ac4c935700aeb5018ac473ec6a180bfc332ec686e7efb8617017ea93481ea79. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments

SHA256 hash: 1ac4c935700aeb5018ac473ec6a180bfc332ec686e7efb8617017ea93481ea79
SHA3-384 hash: 2d39885618cca0d2f107f7a43bdabcdfdf26b1aca83855f6e73e11a88b6449744603f23213c0f88a06bb5ebef5028337
SHA1 hash: fddac955c8312d9099d0321f9379a41a2ce66795
MD5 hash: 55e9193eaf48788cdc5b9f7f2ca3d708
humanhash: twenty-muppet-blue-uniform
File name:setup.exe
Download: download sample
Signature Stop
File size:733'184 bytes
First seen:2023-03-24 01:18:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8444e7fbc7fdb7e9f8131a6ae8e7a76e (10 x Stop)
ssdeep 12288:g7i0Csr2VzRuVbYoJ7sGx+pt/2Sh8jrnWupTIk772lFVcq/ETn6:F5pVzAVbPUpt/8/x6don
Threatray 1'479 similar samples on MalwareBazaar
TLSH T1FCF41322BCE2C076D6D3593096A5C6F8653E7CF056988ACB27550A7E1F307C0F96B247
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 406111198d657109 (1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
255
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
setup.exe
Verdict:
Malicious activity
Analysis date:
2023-03-24 01:19:26 UTC
Tags:
ransomware stop loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
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
DNS request
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
CPUID_Instruction
SystemUptime
EvasionQueryPerformanceCounter
EvasionGetTickCount
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lockbit packed
Result
Verdict:
UNKNOWN
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:
Clipboard Hijacker, Djvu, HTMLPhisher, V
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses schtasks.exe or at.exe to add and modify task schedules
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected HtmlPhish10
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 833817 Sample: setup.exe Startdate: 24/03/2023 Architecture: WINDOWS Score: 100 82 Snort IDS alert for network traffic 2->82 84 Multi AV Scanner detection for domain / URL 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 10 other signatures 2->88 11 setup.exe 2->11         started        14 mstsca.exe 2->14         started        16 setup.exe 2->16         started        process3 signatures4 98 Detected unpacking (changes PE section rights) 11->98 100 Detected unpacking (overwrites its own PE header) 11->100 102 Writes a notice file (html or txt) to demand a ransom 11->102 106 2 other signatures 11->106 18 setup.exe 1 16 11->18         started        104 Multi AV Scanner detection for dropped file 14->104 22 schtasks.exe 14->22         started        process5 dnsIp6 66 api.2ip.ua 162.0.217.254, 443, 49696, 49697 ACPCA Canada 18->66 60 C:\Users\user\...\setup.exe:Zone.Identifier, ASCII 18->60 dropped 62 C:\Users\user\AppData\Local\...\setup.exe, MS-DOS 18->62 dropped 24 setup.exe 18->24         started        27 icacls.exe 18->27         started        29 conhost.exe 22->29         started        file7 process8 signatures9 96 Injects a PE file into a foreign processes 24->96 31 setup.exe 1 24 24->31         started        process10 dnsIp11 74 uaery.top 211.59.14.90, 49698, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 31->74 76 zexeq.com 58.235.189.192, 49699, 49700, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 31->76 78 api.2ip.ua 31->78 52 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 31->52 dropped 54 C:\_readme.txt, ASCII 31->54 dropped 56 C:\Users\user\_readme.txt, ASCII 31->56 dropped 58 185 other malicious files 31->58 dropped 80 Modifies existing user documents (likely ransomware behavior) 31->80 36 build2.exe 31->36         started        39 build3.exe 1 31->39         started        file12 signatures13 process14 file15 90 Detected unpacking (changes PE section rights) 36->90 92 Detected unpacking (overwrites its own PE header) 36->92 42 build2.exe 18 36->42         started        64 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 39->64 dropped 94 Uses schtasks.exe or at.exe to add and modify task schedules 39->94 46 schtasks.exe 39->46         started        signatures16 process17 dnsIp18 68 t.me 149.154.167.99, 443, 49701 TELEGRAMRU United Kingdom 42->68 70 195.201.45.203, 49702, 80 HETZNER-ASDE Germany 42->70 72 192.168.2.1 unknown unknown 42->72 108 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 42->108 110 Tries to harvest and steal browser information (history, passwords, etc) 42->110 112 Tries to steal Crypto Currency Wallets 42->112 48 WerFault.exe 42->48         started        50 conhost.exe 46->50         started        signatures19 process20
Threat name:
Win32.Trojan.Fugrafa
Status:
Malicious
First seen:
2023-03-23 23:35:28 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar botnet:00d92484c9b27bc8482a2cc94cacc508 discovery persistence ransomware spyware stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://zexeq.com/test2/get.php
https://steamcommunity.com/profiles/76561199472266392
https://t.me/tabootalks
http://135.181.26.183:80
Unpacked files
SH256 hash:
55c0548cb65388c832a83b1e7a288e025605ab8a7361a81871ced16aba8e2c18
MD5 hash:
8e509e7a654c2cb66aebd6dbe396a9ff
SHA1 hash:
4d3d432a08c2d9b1204b0e65276378004095b50b
Detections:
win_stop_auto
SH256 hash:
1ac4c935700aeb5018ac473ec6a180bfc332ec686e7efb8617017ea93481ea79
MD5 hash:
55e9193eaf48788cdc5b9f7f2ca3d708
SHA1 hash:
fddac955c8312d9099d0321f9379a41a2ce66795
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:MALWARE_Win_STOP
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
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: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.

Web download

Stop

Executable exe 1ac4c935700aeb5018ac473ec6a180bfc332ec686e7efb8617017ea93481ea79

(this sample)

  
Delivery method
Distributed via web download

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