MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59d0891001fbd6107176eabf298e6247ebb7c9da90e2e31c342d3333e50679c9. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: 59d0891001fbd6107176eabf298e6247ebb7c9da90e2e31c342d3333e50679c9
SHA3-384 hash: 48732ccc55e6ba0c540c190d4e3ab995373d7228fb06b20d9c0e8aef3780dd915468111f2e3d80844c1baae69cd3f029
SHA1 hash: 58813bc4c7e6a160c127b8f222042f88fb470126
MD5 hash: 1b91bf136ea911e84d372e78222f2a54
humanhash: connecticut-spaghetti-seven-florida
File name:1b91bf136ea911e84d372e78222f2a54.exe
Download: download sample
Signature Stop
File size:823'296 bytes
First seen:2021-10-22 08:02:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0aa8675e96bbc2351e2af940f447c93e (9 x RedLineStealer, 4 x Loki, 2 x Smoke Loader)
ssdeep 24576:EfhYFVaIWyVCbJ5iuy0YK208q6RW4wgVxBfDo:eh4VxWyVCbc823q6RW5gVx
TLSH T1AA05F100BA90C035E5F252F8597A93ADB92E7EB1676065CF52D126EE4738AE0FC31317
File icon (PE):PE icon
dhash icon ead8ac9cc6a68ee0 (93 x RedLineStealer, 50 x RaccoonStealer, 15 x Smoke Loader)
Reporter abuse_ch
Tags:exe Ransomware Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
351
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Sending an HTTP GET request
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware 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 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
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 many files with high entropy
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 507502 Sample: U8VtGtyoXA.exe Startdate: 22/10/2021 Architecture: WINDOWS Score: 100 113 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->113 115 Antivirus detection for URL or domain 2->115 117 Multi AV Scanner detection for submitted file 2->117 119 8 other signatures 2->119 12 U8VtGtyoXA.exe 2->12         started        15 U8VtGtyoXA.exe 2->15         started        17 U8VtGtyoXA.exe 2->17         started        19 3 other processes 2->19 process3 signatures4 129 Contains functionality to inject code into remote processes 12->129 131 Writes many files with high entropy 12->131 133 Injects a PE file into a foreign processes 12->133 21 U8VtGtyoXA.exe 1 17 12->21         started        25 U8VtGtyoXA.exe 13 15->25         started        27 U8VtGtyoXA.exe 17->27         started        29 U8VtGtyoXA.exe 19->29         started        31 mstsca.exe 19->31         started        33 mstsca.exe 19->33         started        process5 dnsIp6 93 api.2ip.ua 77.123.139.190, 443, 49746, 49749 VOLIA-ASUA Ukraine 21->93 73 C:\Users\...\U8VtGtyoXA.exe:Zone.Identifier, ASCII 21->73 dropped 35 U8VtGtyoXA.exe 21->35         started        38 icacls.exe 21->38         started        40 schtasks.exe 31->40         started        file7 process8 signatures9 121 Injects a PE file into a foreign processes 35->121 42 U8VtGtyoXA.exe 1 25 35->42         started        47 conhost.exe 40->47         started        process10 dnsIp11 101 znpst.top 188.172.93.164, 49752, 80 VFM-ASVodafoneMaltaLtdASMT Malta 42->101 103 rlrz.org 210.92.250.133, 49751, 49754, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 42->103 105 api.2ip.ua 42->105 85 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 42->85 dropped 87 C:\Users\user\_readme.txt, ASCII 42->87 dropped 89 C:\Users\user\...\U8VtGtyoXA.exe.zaps (copy), MS-DOS 42->89 dropped 91 64 other files (46 malicious) 42->91 dropped 135 Modifies existing user documents (likely ransomware behavior) 42->135 49 build2.exe 42->49         started        52 build3.exe 42->52         started        file12 signatures13 process14 signatures15 107 Writes many files with high entropy 49->107 109 Injects a PE file into a foreign processes 49->109 54 build2.exe 49->54         started        111 Uses schtasks.exe or at.exe to add and modify task schedules 52->111 59 build3.exe 52->59         started        process16 dnsIp17 95 mas.to 88.99.75.82, 443, 49760 HETZNER-ASDE Germany 54->95 97 65.108.80.190, 49763, 80 ALABANZA-BALTUS United States 54->97 99 192.168.2.1 unknown unknown 54->99 75 d06ed635-68f6-4e9a...57b9a6698070581.zip, Zip 54->75 dropped 77 C:\Users\user\AppData\...\softokn3[1].dll, PE32 54->77 dropped 79 C:\Users\user\AppData\...\mozglue[1].dll, PE32 54->79 dropped 83 10 other files (none is malicious) 54->83 dropped 123 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 54->123 125 Tries to harvest and steal browser information (history, passwords, etc) 54->125 127 Tries to steal Crypto Currency Wallets 54->127 61 cmd.exe 54->61         started        81 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 59->81 dropped 63 schtasks.exe 59->63         started        file18 signatures19 process20 process21 65 conhost.exe 61->65         started        67 taskkill.exe 61->67         started        69 timeout.exe 61->69         started        71 conhost.exe 63->71         started       
Threat name:
Win32.Trojan.DiskWriter
Status:
Malicious
First seen:
2021-10-22 08:03:11 UTC
AV detection:
18 of 44 (40.91%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar botnet:517 discovery persistence ransomware spyware stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
https://mas.to/@xeroxxx
http://rlrz.org/lancer
Unpacked files
SH256 hash:
13bf67156c399d479c0744713ea16669b5700788491dafc9138eec51a8026ca0
MD5 hash:
d3b6bbd555e1ed314a4a80fa7b70a8a0
SHA1 hash:
08ee2950636caf6dfb258efb07bde18eb36fd929
Detections:
win_stop_auto
SH256 hash:
59d0891001fbd6107176eabf298e6247ebb7c9da90e2e31c342d3333e50679c9
MD5 hash:
1b91bf136ea911e84d372e78222f2a54
SHA1 hash:
58813bc4c7e6a160c127b8f222042f88fb470126
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.

File information


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

Web download

Stop

Executable exe 59d0891001fbd6107176eabf298e6247ebb7c9da90e2e31c342d3333e50679c9

(this sample)

  
Delivery method
Distributed via web download

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