MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcaca8a95189a898417c977c42e8160fe81c68ca603557e3c30b38be666b808b. 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

SHA256 hash: bcaca8a95189a898417c977c42e8160fe81c68ca603557e3c30b38be666b808b
SHA3-384 hash: 4c18341a85eadfae0fdecce76f655554f28f017d36e6d03b8184a79f071f0e14db4d3e0c079ae4906d96136cda1b8cd2
SHA1 hash: 8512223787c8d1367ba64f49316a3255c9aed8bd
MD5 hash: a416ec22456c12986fb2e9983b23afc5
humanhash: wolfram-ink-quiet-fix
File name:bcaca8a95189a898417c977c42e8160fe81c68ca603557e3c30b38be666b808b
Download: download sample
Signature Stop
File size:709'696 bytes
First seen:2021-09-29 07:50:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ce4c7ed44a96045386f2afd2e6f500aa (6 x RaccoonStealer, 5 x RedLineStealer, 3 x Stop)
ssdeep 12288:1P6oVsI4JakFrCIGrYn3bqYREwC3zDwwq1QwudCxmG0ZlmvpYEWmRq9XcXvxdErr:FhL3kRXGEn36w2qmwSbZlAfWmRq9wvE3
Threatray 734 similar samples on MalwareBazaar
TLSH T1DCE412E176B0C832EBF355758028C2E01D3E7862DE6B514FF28C164B6E3D3869AD5762
File icon (PE):PE icon
dhash icon fcfcd4f4d4dcd8c0 (34 x RaccoonStealer, 21 x RedLineStealer, 8 x ArkeiStealer)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bcaca8a95189a898417c977c42e8160fe81c68ca603557e3c30b38be666b808b
Verdict:
Suspicious activity
Analysis date:
2021-09-29 07:52:27 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
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
Verdict:
Malicious
Result
Threat name:
Djvu Stop
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Signature
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
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Djvu Ransomware
Yara detected Stop Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 493312 Sample: eMEBxM2xXx Startdate: 29/09/2021 Architecture: WINDOWS Score: 100 54 Multi AV Scanner detection for domain / URL 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 Found ransom note / readme 2->58 60 3 other signatures 2->60 8 eMEBxM2xXx.exe 2->8         started        11 eMEBxM2xXx.exe 2->11         started        13 eMEBxM2xXx.exe 2->13         started        15 eMEBxM2xXx.exe 2->15         started        process3 signatures4 64 Detected unpacking (changes PE section rights) 8->64 66 Detected unpacking (overwrites its own PE header) 8->66 68 Contains functionality to inject code into remote processes 8->68 17 eMEBxM2xXx.exe 1 17 8->17         started        70 Injects a PE file into a foreign processes 11->70 21 eMEBxM2xXx.exe 17 11->21         started        72 Multi AV Scanner detection for dropped file 13->72 74 Machine Learning detection for dropped file 13->74 24 eMEBxM2xXx.exe 13 13->24         started        26 eMEBxM2xXx.exe 13 15->26         started        process5 dnsIp6 48 api.2ip.ua 77.123.139.190, 443, 49794, 49796 VOLIA-ASUA Ukraine 17->48 36 C:\Users\user\AppData\...\eMEBxM2xXx.exe, PE32 17->36 dropped 38 C:\Users\...\eMEBxM2xXx.exe:Zone.Identifier, ASCII 17->38 dropped 28 eMEBxM2xXx.exe 17->28         started        31 icacls.exe 17->31         started        50 wrrst.top 21->50 40 C:\_readme.txt, ASCII 21->40 dropped 42 C:\Users\user\...\eMEBxM2xXx.exe.koom (copy), data 21->42 dropped 44 C:\Users\user\Desktop\eMEBxM2xXx.exe, data 21->44 dropped 46 5 other files (3 malicious) 21->46 dropped 62 Modifies existing user documents (likely ransomware behavior) 21->62 file7 signatures8 process9 signatures10 76 Injects a PE file into a foreign processes 28->76 33 eMEBxM2xXx.exe 13 28->33         started        process11 dnsIp12 52 api.2ip.ua 33->52
Threat name:
Win32.Trojan.Racealer
Status:
Malicious
First seen:
2021-09-29 03:05:00 UTC
AV detection:
34 of 45 (75.56%)
Threat level:
  5/5
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
Modifies file permissions
Detected Djvu ransomware
Djvu Ransomware
Unpacked files
SH256 hash:
52abed372fef8c6f6d2f618af456f01bb7840f6a20aeeac882e72f751e8c6c0b
MD5 hash:
0419ceafccad7b4aeeff524530093486
SHA1 hash:
89f265a3036b5642319c49b4f9f89defcc2617ad
Detections:
win_stop_auto
SH256 hash:
bcaca8a95189a898417c977c42e8160fe81c68ca603557e3c30b38be666b808b
MD5 hash:
a416ec22456c12986fb2e9983b23afc5
SHA1 hash:
8512223787c8d1367ba64f49316a3255c9aed8bd
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.

Comments