MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27615d90a89b6a78d835c0a23f0dae5aa155ab24f03b347a9f7e5f43d66ac88d. 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 5 File information Comments

SHA256 hash: 27615d90a89b6a78d835c0a23f0dae5aa155ab24f03b347a9f7e5f43d66ac88d
SHA3-384 hash: ed59fd07cb21a7250e0a1071fbdd5b9319ddd7c1bbf5a6d802cb23b32a9cd1bdf055cb761f2648d1d1d47c199c7a48a1
SHA1 hash: c0eec3db78f81ad01c76436e97b33c766c574282
MD5 hash: fe1f90751b5ecfd5bfc04a6a09024c48
humanhash: oxygen-floor-zebra-alpha
File name:file
Download: download sample
Signature Stop
File size:871'424 bytes
First seen:2022-09-05 11:20:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash db1fe82f13f1f0edd6ba4e6134f49ca5 (4 x Smoke Loader, 1 x Stop)
ssdeep 12288:C7oONRieYhv/DuWbRL9WObXi2bo5Jxm4U5Xgs0Ql/BtcUuETXE1UI3WwwYAN8MKh:C7oOniNLhL9bozxmRvBt9M6N8MElUG
TLSH T1A1051206B953C432C8E65630A431D7A48AB7B6717FB0444F274E3A2FAE70AD198F9753
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 480c3c4c4f594b14 (22 x Smoke Loader, 16 x RedLineStealer, 10 x Tofsee)
Reporter andretavare5
Tags:exe Stop


Avatar
andretavare5
Sample downloaded from http://rgyui.top/dl/build.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-09-05 11:20:43 UTC
Tags:
n/a

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

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a file in the system32 subdirectories
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Query of malicious DNS domain
Sending a TCP request to an infection source
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
CPUID_Instruction
CheckCmdLine
EvasionGetTickCount
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
azorult 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:
Djvu, Vidar
Detection:
malicious
Classification:
rans.spre.troj.spyw.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
Found many strings related to Crypto-Wallets (likely being stolen)
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)
Multi AV Scanner detection for dropped 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
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 697589 Sample: file.exe Startdate: 05/09/2022 Architecture: WINDOWS Score: 100 70 Snort IDS alert for network traffic 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 Antivirus detection for URL or domain 2->74 76 8 other signatures 2->76 10 file.exe 2->10         started        13 file.exe 2->13         started        15 file.exe 2->15         started        17 file.exe 2->17         started        process3 signatures4 84 Contains functionality to inject code into remote processes 10->84 86 Writes many files with high entropy 10->86 88 Injects a PE file into a foreign processes 10->88 19 file.exe 1 16 10->19         started        23 file.exe 12 13->23         started        25 file.exe 12 15->25         started        27 file.exe 17->27         started        process5 dnsIp6 64 api.2ip.ua 162.0.217.254, 443, 49716, 49717 ACPCA Canada 19->64 54 C:\Users\user\...\file.exe:Zone.Identifier, ASCII 19->54 dropped 56 C:\Users\user\AppData\Local\...\file.exe, MS-DOS 19->56 dropped 29 file.exe 19->29         started        32 icacls.exe 19->32         started        file7 process8 signatures9 96 Injects a PE file into a foreign processes 29->96 34 file.exe 1 23 29->34         started        process10 dnsIp11 58 rgyui.top 211.59.14.90, 49718, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 34->58 60 acacaca.org 210.182.29.70, 49719, 49720, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 34->60 62 2 other IPs or domains 34->62 46 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 34->46 dropped 48 C:\Users\user\_readme.txt, ASCII 34->48 dropped 50 C:\Users\...\SmartScreenCache.dat.oovb (copy), data 34->50 dropped 52 53 other files (35 malicious) 34->52 dropped 78 Infects executable files (exe, dll, sys, html) 34->78 80 Modifies existing user documents (likely ransomware behavior) 34->80 39 build2.exe 34->39         started        file12 signatures13 process14 signatures15 82 Injects a PE file into a foreign processes 39->82 42 build2.exe 39->42         started        process16 dnsIp17 66 t.me 149.154.167.99, 443, 49725 TELEGRAMRU United Kingdom 42->66 68 116.202.180.202, 49726, 80 HETZNER-ASDE Germany 42->68 90 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 42->90 92 Tries to harvest and steal browser information (history, passwords, etc) 42->92 94 Tries to steal Crypto Currency Wallets 42->94 signatures18
Threat name:
Win32.Ransomware.StopCrypt
Status:
Malicious
First seen:
2022-09-05 11:21:08 UTC
File Type:
PE (Exe)
Extracted files:
15
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
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
Loads dropped DLL
Modifies file permissions
Downloads MZ/PE file
Executes dropped EXE
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://acacaca.org/test3/get.php
Unpacked files
SH256 hash:
27615d90a89b6a78d835c0a23f0dae5aa155ab24f03b347a9f7e5f43d66ac88d
MD5 hash:
fe1f90751b5ecfd5bfc04a6a09024c48
SHA1 hash:
c0eec3db78f81ad01c76436e97b33c766c574282
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
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.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

Comments