MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ccb6ca4cb385db50dad2e3b7c68a90ddee62398edb0fd41afdb793287cfbe8e6. 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


ROKRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 13 File information Comments
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SHA256 hash: ccb6ca4cb385db50dad2e3b7c68a90ddee62398edb0fd41afdb793287cfbe8e6
SHA3-384 hash: 78683c433a0e531c0ad7ad3aac2fdfd4476ceda8434113b8712a8fc75cb18359422e801867b038e01a7fe849b9664121
SHA1 hash: 65f79b9fa476e9aafec16a7995b39c72d4c5e341
MD5 hash: 443a00feeb3beaea02b2fbcd4302a3c9
humanhash: failed-high-carolina-leopard
File name:북한이탈주민의 성공적인 남한정착을 위한 아카데미 운영.lnk
Download: download sample
Signature ROKRAT
Create hunting rule
File size:52'200'388 bytes
First seen:2025-07-20 18:55:46 UTC
Last seen:Never
File type:Shortcut (lnk) lnk
MIME type:application/x-ms-shortcut
ssdeep 24576:Z5RYf1hLmhhf5fmjP6/rG6IZw2uRR2lfq4wa4VbaeP2noYy+rrrP/UAUQIyqg:Z5RY3ZiG6KowqLbadArw
TLSH T1C8B78BECB39739B9D8E7E2FA035867724B7B0A05DD100025853CFBC6AA23657C729467
Magika lnk
Reporter smica83
Tags:lnk RokRat

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
HU HU
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=687d3bec84b37dd61eeffcd6
Tags:
obfuscate shell sage
Result
Threat name:
ROKRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1740611
Signature
Contains functionality to detect sleep reduction / modifications
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Encrypted powershell cmdline option found
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Powershell creates an autostart link
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Notepad Making Network Connection
Sigma detected: Powerup Write Hijack DLL
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Windows shortcut file (LNK) contains suspicious command line arguments
Windows shortcut file (LNK) starts blacklisted processes
Writes to foreign memory regions
Yara detected ROKRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1740611 Sample: b4#Uc601.lnk Startdate: 20/07/2025 Architecture: WINDOWS Score: 100 66 edge-block-api-env.dropbox-dns.com 2->66 68 content.dropboxapi.com 2->68 70 3 other IPs or domains 2->70 82 Malicious sample detected (through community Yara rule) 2->82 84 Windows shortcut file (LNK) starts blacklisted processes 2->84 86 Multi AV Scanner detection for submitted file 2->86 88 7 other signatures 2->88 11 cmd.exe 1 2->11         started        14 OpenWith.exe 18 9 2->14         started        signatures3 process4 signatures5 98 Windows shortcut file (LNK) starts blacklisted processes 11->98 100 Suspicious powershell command line found 11->100 102 Obfuscated command line found 11->102 104 Encrypted powershell cmdline option found 11->104 16 powershell.exe 3 20 11->16         started        20 cmd.exe 1 11->20         started        22 conhost.exe 1 11->22         started        process6 file7 50 C:\Users\user\AppData\Local\Temp\aio03.bat, ASCII 16->50 dropped 72 Windows shortcut file (LNK) starts blacklisted processes 16->72 74 Deletes itself after installation 16->74 76 Powershell creates an autostart link 16->76 24 cmd.exe 1 16->24         started        signatures8 process9 signatures10 90 Windows shortcut file (LNK) starts blacklisted processes 24->90 92 Suspicious powershell command line found 24->92 94 Obfuscated command line found 24->94 96 Encrypted powershell cmdline option found 24->96 27 powershell.exe 51 24->27         started        31 cvtres.exe 1 24->31         started        process11 file12 60 C:\Users\user\AppData\...\ard5wrth.cmdline, Unicode 27->60 dropped 106 Writes to foreign memory regions 27->106 108 Creates a thread in another existing process (thread injection) 27->108 33 notepad.exe 3 27->33         started        37 csc.exe 3 27->37         started        40 csc.exe 3 27->40         started        42 3 other processes 27->42 signatures13 process14 dnsIp15 62 edge-block-api-env.dropbox-dns.com 162.125.4.14, 443, 49722, 49725 DROPBOXUS United States 33->62 64 api-env.dropbox-dns.com 162.125.4.19, 443, 49721, 49723 DROPBOXUS United States 33->64 78 System process connects to network (likely due to code injection or exploit) 33->78 80 Contains functionality to detect sleep reduction / modifications 33->80 52 C:\Users\user\AppData\Local\...\k1zelobh.dll, PE32 37->52 dropped 44 cvtres.exe 1 37->44         started        54 C:\Users\user\AppData\Local\...\rwpvcri4.dll, PE32 40->54 dropped 46 cvtres.exe 1 40->46         started        56 C:\Users\user\AppData\Local\...\fef25hko.dll, PE32 42->56 dropped 58 C:\Users\user\AppData\Local\...\ard5wrth.dll, PE32 42->58 dropped 48 cvtres.exe 1 42->48         started        file16 signatures17 process18
Gathering data
Verdict:
Malicious
Threat:
Trojan.PowerShell.RokRat
Link:
https://tip.neiki.dev/file/ccb6ca4cb385db50dad2e3b7c68a90ddee62398edb0fd41afdb793287cfbe8e6
Threat name:
Shortcut.Trojan.Pantera
Create hunting rule
Status:
Malicious
First seen:
2025-07-20 15:45:05 UTC
File Type:
Binary
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zs3mutftqxnvbwws4o34ncuq3xxgeomo3mh5igx5w6jsq7h35dta._file
Result
Malware family:
rokrat
Create hunting rule
Score:
  10/10
Tags:
family:rokrat discovery execution rat
Link:
https://tria.ge/reports/250720-xllh1sgk2y/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Checks BIOS information in registry
Checks computer location settings
Deletes itself
Command and Scripting Interpreter: PowerShell
Detect Rokrat payload
Rokrat
Rokrat family
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/ccb6ca4cb385db50dad2e3b7c68a90ddee62398edb0fd41afdb793287cfbe8e6

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:Archive_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies archive (compressed) files in shortcut (LNK) files.
Rule name:AutoIT_Script
Create hunting rule
Author:@bartblaze
Description:Identifies AutoIT script. This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:Execution_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies execution artefacts in shortcut (LNK) files.
Rule name:Large_filesize_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies shortcut (LNK) file larger than 100KB. Most goodware LNK files are smaller than 100KB.
Rule name:PS_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies PowerShell artefacts in shortcut (LNK) files.
Rule name:Script_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies scripting artefacts in shortcut (LNK) files.
Rule name:SUSP_LNK_Big_Link_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspiciously big LNK file - maybe with embedded content
Reference:Internal Research
Rule name:SUSP_LNK_Big_Link_File_RID2EDD
Create hunting rule
Author:Florian Roth
Description:Detects a suspiciously big LNK file - maybe with embedded content
Reference:Internal Research
Rule name:SUSP_LNK_Embedded_WordDoc
Create hunting rule
Author:Greg Lesnewich
Description:check for LNK files with indications of the Word program or an embedded doc
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:SUSP_XORed_MSDOS_Stub_Message
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments