MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1afa618ea5e953019173b3d0b4dad9082cefc71578b06e217ad58e4d6f7fdac3. 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 5 File information Comments

SHA256 hash: 1afa618ea5e953019173b3d0b4dad9082cefc71578b06e217ad58e4d6f7fdac3
SHA3-384 hash: 31a37a9b414841acc427e084b6ceedbc41232f10007b83bed666f600bd1be0c79ad98e1b6b3bd27e383ef869ef915d75
SHA1 hash: 1b17ab2cfcbe7065d164cc3ac5411870929eb0f3
MD5 hash: 16ee2e7ad9300a2456a9bbf245aec566
humanhash: bakerloo-emma-music-ink
File name:1afa618ea5e953019173b3d0b4dad9082cefc71578b06e217ad58e4d6f7fdac3
Download: download sample
Signature Stop
File size:831'488 bytes
First seen:2022-03-28 06:10:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ceacc43c0db658592494aa369ad9da97 (1 x RaccoonStealer, 1 x Stop)
ssdeep 24576:LUN4FRyeMQqCLfAjFNzJML7A5dfAKiIuN:LmrPQrLAjbJMIr9PuN
Threatray 1'008 similar samples on MalwareBazaar
TLSH T1210512223AE3E436C1861D70A038DA70AB7B783109A4955F37885B3E6F717D216B970F
File icon (PE):PE icon
dhash icon 5c599a3c60c3c850 (20 x RedLineStealer, 14 x Stop, 13 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Сreating synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Behaviour
MeasuringTime
SystemUptime
CheckCmdLine
EvasionQueryPerformanceCounter
EvasionGetTickCount
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
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:
Djvu Vidar
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Found many strings related to Crypto-Wallets (likely being stolen)
Found ransom note / readme
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Tries to steal Mail credentials (via file / registry access)
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 598367 Sample: UKvihGsSph Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 72 api.2ip.ua 2->72 80 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 Antivirus detection for URL or domain 2->84 86 9 other signatures 2->86 11 UKvihGsSph.exe 2->11         started        14 UKvihGsSph.exe 2->14         started        16 UKvihGsSph.exe 2->16         started        18 UKvihGsSph.exe 2->18         started        signatures3 process4 signatures5 96 Contains functionality to inject code into remote processes 11->96 98 Injects a PE file into a foreign processes 11->98 20 UKvihGsSph.exe 1 16 11->20         started        24 UKvihGsSph.exe 12 14->24         started        26 UKvihGsSph.exe 12 16->26         started        process6 dnsIp7 74 api.2ip.ua 162.0.218.244, 443, 49776, 49777 ACPCA Canada 20->74 54 C:\Users\...\UKvihGsSph.exe:Zone.Identifier, ASCII 20->54 dropped 56 C:\Users\user\AppData\...\UKvihGsSph.exe, MS-DOS 20->56 dropped 28 UKvihGsSph.exe 20->28         started        31 icacls.exe 20->31         started        file8 process9 signatures10 108 Injects a PE file into a foreign processes 28->108 33 UKvihGsSph.exe 1 23 28->33         started        process11 dnsIp12 66 zerit.top 178.31.123.113, 49779, 80 TELENOR-NEXTELTelenorNorgeASNO Sweden 33->66 68 fuyt.org 186.7.131.115, 49778, 49780, 80 CompaniaDominicanadeTelefonosSADO Dominican Republic 33->68 70 api.2ip.ua 33->70 46 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 33->46 dropped 48 C:\Users\user\AppData\Local\...\build2.exe, PE32 33->48 dropped 50 C:\_readme.txt, ASCII 33->50 dropped 52 6 other files (4 malicious) 33->52 dropped 88 Modifies existing user documents (likely ransomware behavior) 33->88 38 build2.exe 33->38         started        file13 signatures14 process15 signatures16 90 Multi AV Scanner detection for dropped file 38->90 92 Machine Learning detection for dropped file 38->92 94 Injects a PE file into a foreign processes 38->94 41 build2.exe 38->41         started        process17 dnsIp18 76 78.47.227.68, 49794, 80 HETZNER-ASDE Germany 41->76 78 5.252.21.17, 80 FIRSTDC-ASRU Russian Federation 41->78 58 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 41->58 dropped 60 C:\Users\user\AppData\...\softokn3[1].dll, PE32 41->60 dropped 62 C:\Users\user\AppData\...\freebl3[1].dll, PE32 41->62 dropped 64 9 other files (none is malicious) 41->64 dropped 100 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 41->100 102 Tries to steal Mail credentials (via file / registry access) 41->102 104 Tries to harvest and steal browser information (history, passwords, etc) 41->104 106 Tries to steal Crypto Currency Wallets 41->106 file19 signatures20
Threat name:
Win32.Ransomware.StopCrypt
Status:
Malicious
First seen:
2022-03-21 07:19:00 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu ransomware
Behaviour
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://fuyt.org/test1/get.php
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:SUSP_XORed_URL_in_EXE
Author:Florian Roth
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:win_stop_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.
Rule name:XOREngine_Misc_XOR_Func
Author:smiller cc @florian @wesley idea on implementation with yara's built in XOR function
Description:Use with care, https://twitter.com/cyb3rops/status/1237042104406355968

File information


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

Comments