MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef883b1302fd39664bf7ef489ddac6ae0a4e09be8f46d5c975a127174d0d9c34. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef883b1302fd39664bf7ef489ddac6ae0a4e09be8f46d5c975a127174d0d9c34
SHA3-384 hash: 833d96456ebe0d0bce63db61360714f371f6255252b8afff14b55a3bdeba5f422571586ae4b316b1aed5de4df8e7b113
SHA1 hash: 5570911fddba04ba22d944d0ae67d6436379e23e
MD5 hash: 9157dd70f14e2dd5b697c34164c6b700
humanhash: violet-don-chicken-aspen
File name:ef883b1302fd39664bf7ef489ddac6ae0a4e09be8f46d5c975a127174d0d9c34
Download: download sample
Signature Stop
Create hunting rule
File size:714'304 bytes
First seen:2021-09-29 07:49:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 062d438af0a5427d47d2119e831026d3 (27 x RedLineStealer, 8 x RaccoonStealer, 4 x ArkeiStealer)
ssdeep 12288:4z/Q4vy+YQ73prC9lF2XLLrCjxHzIEEzFGO9sTXsrn253UcNVEB7KKTbpdd:q/QSPprC9f2XLCjxNk7sO2+bBZTVX
Threatray 732 similar samples on MalwareBazaar
TLSH T1AFE4122277E0C473E7976931187BF5B9163B7822DD7BD44BE21C079E0A252818AC63E7
File icon (PE):PE icon
dhash icon fcfcd4d4d4dcd8c0 (52 x RaccoonStealer, 28 x RedLineStealer, 6 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/192971/
Detection(s):
Win.Packed.Generic-9896741-0
Create hunting rule

Win.Malware.Generic-9896928-0
Create hunting rule

Win.Packed.Fragtor-9896992-0
Create hunting rule

Win.Malware.Generic-9896993-0
Create hunting rule

Win.Dropper.Fragtor-9897069-0
Create hunting rule

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
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
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/239a271f-aa4f-4408-b295-ffbb57dd41ce
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.spre.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/860822
Signature
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes many files with high entropy
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 493336 Sample: o7LBymBKPE Startdate: 29/09/2021 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Antivirus detection for URL or domain 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 4 other signatures 2->63 8 o7LBymBKPE.exe 2->8         started        11 o7LBymBKPE.exe 2->11         started        13 o7LBymBKPE.exe 2->13         started        15 o7LBymBKPE.exe 2->15         started        process3 signatures4 69 Detected unpacking (changes PE section rights) 8->69 71 Detected unpacking (overwrites its own PE header) 8->71 73 Contains functionality to inject code into remote processes 8->73 75 Writes many files with high entropy 8->75 17 o7LBymBKPE.exe 1 16 8->17         started        77 Injects a PE file into a foreign processes 11->77 21 o7LBymBKPE.exe 12 11->21         started        23 o7LBymBKPE.exe 12 13->23         started        25 o7LBymBKPE.exe 15->25         started        process5 dnsIp6 53 api.2ip.ua 77.123.139.190, 443, 49747, 49751 VOLIA-ASUA Ukraine 17->53 45 C:\Users\...\o7LBymBKPE.exe:Zone.Identifier, ASCII 17->45 dropped 27 o7LBymBKPE.exe 17->27         started        30 icacls.exe 17->30         started        55 192.168.2.1 unknown unknown 21->55 file7 process8 signatures9 79 Injects a PE file into a foreign processes 27->79 32 o7LBymBKPE.exe 1 17 27->32         started        process10 dnsIp11 47 securebiz.org 211.169.6.249, 49752, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 32->47 49 wrrst.top 32->49 51 api.2ip.ua 32->51 37 C:\Users\user\AppData\...\modernizr[1].js, COM 32->37 dropped 39 C:\Users\user\AppData\Local\...\OneDrive.adml, DOS 32->39 dropped 41 C:\_readme.txt, ASCII 32->41 dropped 43 446 other files (432 malicious) 32->43 dropped 65 Infects executable files (exe, dll, sys, html) 32->65 67 Modifies existing user documents (likely ransomware behavior) 32->67 file12 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef883b1302fd39664bf7ef489ddac6ae0a4e09be8f46d5c975a127174d0d9c34/
Threat name:
Win32.Ransomware.Stop
Create hunting rule
Status:
Malicious
First seen:
2021-09-28 14:23:01 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56edweyc7u4wms7x55ej3wwgvyfe4cn6r5dnlslvuetrotintq2a._file
Verdict:
malicious
Similar samples:
1662a370129d1175bb6064da3b8080158ebe848ab34e433c67e93d4f3481b148
Stop
26967c1b5ff6848501ddf70985408b7736835286f788f663e086f34aecd6bfb1
Stop
28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f
Stop
44f6676314c6c50f2807f34a33335abd58ca254f95c213496205825257f7b4d6
Stop
55e262d517e470787760c984868f07d582f8d8efd9ff98db0870c48c9a51c23d
Stop
65de8f856c797623ad2fd66f9e1dcce4a74b969334964b535cc0176eb588af95
Stop
7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d
Stop
804b9c87f98a32101b51f26c221e589bc80350b69c163abfab2de64f7e9b3e72
Stop
96888e3f86a786d67fe5d2df9f5d195721ec70de964fb1467a263eaa2a9c80bd
Stop
ed8a7ffec56f450a365e758012db092883bbd23565f3f9fbb004c189fb703de3
Stop
+ 722 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware suricata
Link:
https://tria.ge/reports/210929-jpac9secen/
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
Modifies file permissions
Detected Djvu ransomware
Djvu Ransomware
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
Unpacked files
SH256 hash:
52abed372fef8c6f6d2f618af456f01bb7840f6a20aeeac882e72f751e8c6c0b
MD5 hash:
0419ceafccad7b4aeeff524530093486
SHA1 hash:
89f265a3036b5642319c49b4f9f89defcc2617ad
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/338605ae-9d9d-4fd4-b760-efbf8b86b452/
Parent samples :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 hash:
ef883b1302fd39664bf7ef489ddac6ae0a4e09be8f46d5c975a127174d0d9c34
MD5 hash:
9157dd70f14e2dd5b697c34164c6b700
SHA1 hash:
5570911fddba04ba22d944d0ae67d6436379e23e
Link:
https://www.unpac.me/results/338605ae-9d9d-4fd4-b760-efbf8b86b452/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ef883b1302fd/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/ef883b1302fd39664bf7ef489ddac6ae0a4e09be8f46d5c975a127174d0d9c34

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
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_stop_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/192971/

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