MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf5ec678a2f836f859eb983eb633d529c25771b3b7505e74aa695b7ca00f9fa8. 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: 6


Intelligence 6 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf5ec678a2f836f859eb983eb633d529c25771b3b7505e74aa695b7ca00f9fa8
SHA3-384 hash: 73731f05525a0a924e8713448b9fa616585c41e921cabc6ef6998fea7bd45f06b2bff8e0cfa28c03e3a337060efc9e76
SHA1 hash: 50ae8d51e9bc3fc5264c7ff2d0b18b68e8164f84
MD5 hash: 8d986c2f6a23ad4b1624f6e3ee55d3a2
humanhash: robin-july-nevada-london
File name:ragnar_locker_Omniga.de_
Download: download sample
Signature RagnarLocker
Create hunting rule
File size:6'187'008 bytes
First seen:2020-08-03 10:00:30 UTC
Last seen:2020-08-03 10:36:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ca0cd2d76c9b02bab2507f2a8a60307a (1 x RagnarLocker)
ssdeep 98304:daXT4xKWyHsSZ5O200UpV0XNK5s5DnFkv2+nAvExh+5BedMrY87XDUqJCfpxCtTN:daXMEHsgOUgViLAhAv6hO5bzhJCRxCN3
Threatray 30 similar samples on MalwareBazaar
TLSH 7A56127312784149D1E7CC3D9933FDE071F5522B8F81B8FAA59A6DD528225F8E223A13
Reporter JAMESWT_WT
Tags:Omniga RagnarLocker Ransomware

Intelligence

File Origin
# of uploads :
2
# of downloads :
2'580
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Ragnarlocker
Create hunting rule
Link:
https://www.capesandbox.com/analysis/37706/
Detection(s):
SecuriteInfo.com.Generic.Ransom.Ragnar.195BD0FE.7354.8431.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a process with a hidden window
Launching a process
Moving a file to the Program Files subdirectory
Deleting volume shadow copies
Creating a file in the mass storage device
Encrypting user's files
Result
Threat name:
RagnarLocker
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/407758
Signature
Deletes shadow drive data (may be related to ransomware)
Detected VMProtect packer
Found Tor onion address
Hides threads from debuggers
Machine Learning detection for sample
May disable shadow drive data (uses vssadmin)
Modifies existing user documents (likely ransomware behavior)
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Sigma detected: Delete shadow copy via WMIC
Tries to detect debuggers by setting the trap flag for special instructions
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes many files with high entropy
Yara detected RagnarLocker ransomware
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf5ec678a2f836f859eb983eb633d529c25771b3b7505e74aa695b7ca00f9fa8/
Threat name:
Win32.Ransomware.Ragnar
Create hunting rule
Status:
Malicious
First seen:
2020-08-02 12:37:58 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
41 of 48 (85.42%)
Threat level:
  5/5
Verdict:
suspicious
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RagnarLocker
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22a49fd2468178e5b33cad08985adde50f0530a33260affc58bee6b2401005a9
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3e5bbf9fcae918011ec4eee75ac6402fddf20d09fef95b362d0e226d56b80f1d
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57cf4470348e3b5da0fa3152be84a81a5e2ce5d794976387be290f528fa419fd
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6285cf98c96fdfa826a2d5e4de045bb84dfc7e05d21b561c54a5b63ad2c298e1
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84783081ade87f5a4a1902a275eb66c7fe8ebef9e43cdd2d4527bdb1a5a51f04
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89d5d6a0436ed5e2e27c0f9cd1f7fa5b05fa342a082fc5d7ad2439ac75c7bf33
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a3c2207806f9be710f3a1d1cbf1149a708bb080946e2368c8e826f5cef2293e4
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eeff7bc679bb93407730373e791ecfcb9669be2b6dcfafa3a00aed5d4e953b4e
RagnarLocker
+ 20 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
vmprotect
Link:
https://tria.ge/reports/200803-b9r4hl2gba/
Behaviour
VMProtect packed file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Ransomware
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cf5ec678a2f836f859eb983eb633d529c25771b3b7505e74aa695b7ca00f9fa8

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:suspicious_packer_section
Create hunting rule
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/

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/37706/

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