MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef2103b223e899c11db31e40f218969f5760c6b41030da2efe9b68b2ccce64bd. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef2103b223e899c11db31e40f218969f5760c6b41030da2efe9b68b2ccce64bd
SHA3-384 hash: 9c420cd666e805ff9bcb74038e2e0d54f7a6d1172a285a608cc6179f6fc83f04a54f065863fecef569c1a0f23e19ee6b
SHA1 hash: abd63c08619fe44660c2b4b2faf50cfb85a2dbe5
MD5 hash: 9f820fb522a4c20f953075b8eea150ad
humanhash: vermont-beer-monkey-indigo
File name:file
Download: download sample
Signature Stop
Create hunting rule
File size:797'184 bytes
First seen:2022-09-06 16:20:34 UTC
Last seen:2022-09-06 16:37:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 996ab292099399c5d3a6ea501195e9cf (8 x Smoke Loader, 4 x Stop, 2 x RecordBreaker)
ssdeep 12288:84WA7LvBd0Ei2lMFvupve5tAtRbPhgf22rBloMIUJgcOMhNJqPJBn6:3VJaEiNvuKtMb+u2NaMPzNJqPJ
TLSH T10105F110B790D031E1F742F499BAD3B8B63E7AA1572464CBA2E156ED97346E0EC3134B
TrID 40.2% (.EXE) InstallShield setup (43053/19/16)
29.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.8% (.EXE) Win64 Executable (generic) (10523/12/4)
6.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 2dec137839939b91 (9 x RedLineStealer, 3 x Stop, 2 x DanaBot)
Reporter andretavare5
Tags:exe Stop


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

Intelligence

File Origin
# of uploads :
6
# of downloads :
307
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-09-06 16:22:02 UTC
Tags:
installer
Link:
https://app.any.run/tasks/d392d06d-6bda-4927-9704-92e2cce9d9cc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/308256/
Detection(s):
Win.Packed.Pwsx-9965190-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Creating a file in the system32 subdirectories
Creating a file
Creating a window
Unauthorized injection to a recently created process
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
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
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/36828/overview
Behaviour
MalwareBazaar
MeasuringTime
CPUID_Instruction
SystemUptime
CheckCmdLine
EvasionGetTickCount
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/631773c878eab9b15ea1eb46/reports/9b9e68f1-81c5-4a3b-95e7-e48daa4cb5cc/overview
Result
Verdict:
SUSPICIOUS
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a1a41171-46a5-4382-a4b2-4fada8eb2f1f
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1065827
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 domain / URL
Snort IDS alert for network traffic
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 698353 Sample: file.exe Startdate: 06/09/2022 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic 2->56 58 Multi AV Scanner detection for domain / URL 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 5 other signatures 2->62 8 file.exe 2->8         started        11 file.exe 2->11         started        13 file.exe 2->13         started        15 file.exe 2->15         started        process3 signatures4 66 Machine Learning detection for dropped file 8->66 68 Injects a PE file into a foreign processes 8->68 17 file.exe 19 8->17         started        22 file.exe 1 16 11->22         started        24 file.exe 12 13->24         started        26 file.exe 12 15->26         started        process5 dnsIp6 48 acacaca.org 211.119.84.112, 49759, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 17->48 36 C:\Users\user\...\ChromeSetup.exe.oovb (copy), MS-DOS 17->36 dropped 38 C:\Users\user\Downloads\ChromeSetup.exe, MS-DOS 17->38 dropped 40 C:\Users\user\Desktop\file.exe.oovb (copy), MS-DOS 17->40 dropped 46 5 other malicious files 17->46 dropped 64 Modifies existing user documents (likely ransomware behavior) 17->64 50 api.2ip.ua 162.0.217.254, 443, 49747, 49748 ACPCA Canada 22->50 52 192.168.2.1 unknown unknown 22->52 42 C:\Users\user\AppData\Local\...\file.exe, PE32 22->42 dropped 44 C:\Users\user\...\file.exe:Zone.Identifier, ASCII 22->44 dropped 28 file.exe 22->28         started        31 icacls.exe 22->31         started        file7 signatures8 process9 signatures10 70 Injects a PE file into a foreign processes 28->70 33 file.exe 12 28->33         started        process11 dnsIp12 54 api.2ip.ua 33->54
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef2103b223e899c11db31e40f218969f5760c6b41030da2efe9b68b2ccce64bd/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-09-06 16:21:08 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54qqhmrd5cm4chntdzapegewt5lwbrvucaynulx6tnulftgoms6q._file
Verdict:
malicious
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/220906-ttmjhadafp/
Behaviour
Checks processor information in registry
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
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
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
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:
51cde1a13c66cc84ee1984e4e4efcebdf13bb6b526efbec17af6fe46e14ff2a0
MD5 hash:
ed57fbf440e30f57a4b5f80bd1c68d75
SHA1 hash:
76fa489e26c244b8d69c220a30a3722c5b5afdb6
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/b4870456-e07e-415b-b0e1-5b695dc42fe2/
Parent samples :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 hash:
ef2103b223e899c11db31e40f218969f5760c6b41030da2efe9b68b2ccce64bd
MD5 hash:
9f820fb522a4c20f953075b8eea150ad
SHA1 hash:
abd63c08619fe44660c2b4b2faf50cfb85a2dbe5
Link:
https://www.unpac.me/results/b4870456-e07e-415b-b0e1-5b695dc42fe2/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef2103b223e8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ef2103b223e899c11db31e40f218969f5760c6b41030da2efe9b68b2ccce64bd

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB

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
Cape
Cape
https://www.capesandbox.com/analysis/308256/

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