MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b43751ed88e4d1f82cf52ca2d4477e3e35c35f08c1b4e3ab21c80720601e804. 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


RagnarLocker


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b43751ed88e4d1f82cf52ca2d4477e3e35c35f08c1b4e3ab21c80720601e804
SHA3-384 hash: 7949943d4101268219804c754ac99fa1b8457d184b6be2772d7ca0deba7d33b67b74705c5fcc76299c7c2d2360019a91
SHA1 hash: c1a5dfd851337cd12770244c97e83b7066dea781
MD5 hash: 439ef1ddf569a7d6a8280a229357fcfc
humanhash: blossom-cola-network-quiet
File name:3b43751ed88e4d1f82cf52ca2d4477e3e35c35f08c1b4e3ab21c80720601e804.bin
Download: download sample
Signature RagnarLocker
Create hunting rule
File size:55'808 bytes
First seen:2020-08-28 03:43:41 UTC
Last seen:2020-10-01 16:00:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2c2aab89a4cba444cf2729e2ed61ed4f (3 x RagnarLocker)
ssdeep 768:gDq17yBfcKW/engJIYVQIz2yNVn/+Q7tXZ70OSWas5Y:MqM6/OgS4Qs3F7tJ7nSW55
Threatray 7 similar samples on MalwareBazaar
TLSH 13437C55299FE401ED9308B0326AB9DAB57E2AB05719FBD7BD002E4015FC8F29678333
Reporter Dashowl
Tags:RagnarLocker

Intelligence

File Origin
# of uploads :
2
# of downloads :
2'489
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/52151/
Detection(s):
Win.Exploit.CVE_2017_0213-6306933-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Enabling the 'hidden' option for recently created files
Sending a UDP request
Creating a process with a hidden window
Launching a process
Deleting volume shadow copies
Preventing system recovery
Creating a file in the mass storage device
Forced shutdown of a browser
Encrypting user's files
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/453163
Signature
Antivirus / Scanner detection for submitted sample
Deletes shadow drive data (may be related to ransomware)
Found Tor onion address
Machine Learning detection for sample
May disable shadow drive data (uses vssadmin)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Sigma detected: Delete shadow copy via WMIC
Sigma detected: WannaCry Ransomware
Uses bcdedit to modify the Windows boot settings
Writes many files with high entropy
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 278951 Sample: lllF3X8prA.bin Startdate: 28/08/2020 Architecture: WINDOWS Score: 100 39 Sigma detected: WannaCry Ransomware 2->39 41 Antivirus / Scanner detection for submitted sample 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 6 other signatures 2->45 7 lllF3X8prA.exe 4 151 2->7         started        11 notepad.exe 2->11         started        process3 file4 31 C:FI\Microsoft\Boot\cs-CZ\bootmgr.efi.mui, Encore 7->31 dropped 33 C:\Users\user\Desktop\...\BXAJUJAOEO.pdf, data 7->33 dropped 35 C:\Users\user\Desktop\...\LHEPQPGEWF.xlsx, data 7->35 dropped 37 19 other malicious files 7->37 dropped 47 May disable shadow drive data (uses vssadmin) 7->47 49 Deletes shadow drive data (may be related to ransomware) 7->49 51 Uses bcdedit to modify the Windows boot settings 7->51 53 2 other signatures 7->53 13 bcdedit.exe 1 1 7->13         started        15 bcdedit.exe 1 7->15         started        17 bcdedit.exe 1 7->17         started        19 2 other processes 7->19 signatures5 process6 process7 21 conhost.exe 13->21         started        23 conhost.exe 15->23         started        25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        29 conhost.exe 19->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3b43751ed88e4d1f82cf52ca2d4477e3e35c35f08c1b4e3ab21c80720601e804/
Threat name:
Win32.Ransomware.RagnarLocker
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 20:35:17 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hnbxkhwyrzgr7awpklfc2rdx4prvynpqrqnu4ovsdsahebqb5aca._file
Verdict:
malicious
Similar samples:
04c9cc0d1577d5ee54a4e2d4dd12f17011d13703cdd0e6efd46718d14fd9aa87
RagnarLocker
1602d04000a8c7221ed0d97d79f3157303e209d4640d31b8566dd52c2b09d033
RagnarLocker
30dcc7a8ae98e52ee5547379048ca1fc90925e09a2a81c055021ba225c1d064c
RagnarLocker
3bc8ce79ee7043c9ad70698e3fc2013806244dc5112c8c8d465e96757b57b1e1
RagnarLocker
68eb2d2d7866775d6bf106a914281491d23769a9eda88fc078328150b8432bb3
RagnarLocker
9706a97ffa43a0258571def8912dc2b8bf1ee207676052ad1b9c16ca9953fc2c
RagnarLocker
b670441066ff868d06c682e5167b9dbc85b5323f3acfbbc044cabc0e5a594186
RagnarLocker
Result
Malware family:
ragnarlocker
Create hunting rule
Score:
  10/10
Tags:
ransomware evasion persistence family:ragnarlocker bootkit
Link:
https://tria.ge/reports/200828-p7thdjt9qn/
Behaviour
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Modifies service
Drops desktop.ini file(s)
Writes to the Master Boot Record (MBR)
Deletes shadow copies
Modifies boot configuration data using bcdedit
RagnarLocker
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Filecoder
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3b43751ed88e4d1f82cf52ca2d4477e3e35c35f08c1b4e3ab21c80720601e804

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:RagnarLocker
Create hunting rule
Author:@bartblaze
Description:Identifies RagnarLocker ransomware unpacked or in memory.

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/52151/

Comments