MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd3b42b2ca77ce40fb72780b4d1e589c740fe3c7e1b44a3a6faf4a4494f09b63. 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



Kimsuky


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash: cd3b42b2ca77ce40fb72780b4d1e589c740fe3c7e1b44a3a6faf4a4494f09b63
SHA3-384 hash: 0791c788f2a55becd593fa105a41169a11a3d886c6d10bcec733779632125ffb72ed27fc4f28d54e42e9d86ece435cde
SHA1 hash: d4b614a45b3152cdedf53019ae8ae2add9de7921
MD5 hash: 4a94c09fdfdc4a722aa7f017f4a90a58
humanhash: double-july-lion-gee
File name:cd3b42b2ca77ce40fb72780b4d1e589c740fe3c7e1b44a3a6faf4a4494f09b63
Download: download sample
Signature Kimsuky
File size:549'888 bytes
First seen:2022-03-18 10:19:18 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash d59b39eebb4de240ea53ed0a5551f5d6 (1 x Kimsuky)
ssdeep 12288:Q0on6Q7IbdJSfRKpxXuqc7SPZoHYC5SEkNR2jsMm+J87UA92+n:bon/sIRKpxXuT7SPZoHrSab89
Threatray 6'278 similar samples on MalwareBazaar
TLSH T170C4239BF6F3C177CB1D0339214F424EEE18809093ADDEADA049D28EED358A57D256B1
Reporter JAMESWT_WT
Tags:dll Kimsuky

Intelligence


File Origin
# of uploads :
1
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Running batch commands
Using the Windows Management Instrumentation requests
Searching for the window
Sending a custom TCP request
Launching a tool to kill processes
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
explorer.exe kimsuky packed scar winnti
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected VMProtect packer
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Call by Ordinal
Sigma detected: Suspicious Svchost Process
Writes to foreign memory regions
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 592297 Sample: xFTSiKeUPR Startdate: 18/03/2022 Architecture: WINDOWS Score: 100 90 mail2.daum.net 2->90 92 mail.daum.net 2->92 94 2 other IPs or domains 2->94 102 Malicious sample detected (through community Yara rule) 2->102 104 Antivirus detection for dropped file 2->104 106 Antivirus / Scanner detection for submitted sample 2->106 108 6 other signatures 2->108 10 rundll32.exe 2->10         started        12 rundll32.exe 2->12         started        14 loaddll32.exe 1 2->14         started        signatures3 process4 process5 16 rundll32.exe 10->16         started        19 rundll32.exe 12->19         started        21 rundll32.exe 7 14->21         started        24 cmd.exe 1 14->24         started        26 rundll32.exe 6 14->26         started        28 rundll32.exe 6 14->28         started        file6 96 Writes to foreign memory regions 16->96 98 Allocates memory in foreign processes 16->98 100 Injects a PE file into a foreign processes 16->100 30 svchost.exe 16->30         started        33 svchost.exe 19->33         started        72 C:\Users\user\AppData\Roaming\...\Ahnlab~.dll, PE32 21->72 dropped 74 C:\Users\user\...\Ahnlab~.dll:Zone.Identifier, ASCII 21->74 dropped 35 cmd.exe 21->35         started        37 WerFault.exe 21->37         started        39 rundll32.exe 1 6 24->39         started        41 cmd.exe 1 26->41         started        43 WerFault.exe 26->43         started        45 cmd.exe 1 28->45         started        47 WerFault.exe 28->47         started        signatures7 process8 signatures9 110 Writes to foreign memory regions 30->110 112 Allocates memory in foreign processes 30->112 114 Injects a PE file into a foreign processes 30->114 49 iexplore.exe 30->49         started        52 iexplore.exe 30->52         started        54 iexplore.exe 30->54         started        60 12 other processes 30->60 62 2 other processes 35->62 56 cmd.exe 1 39->56         started        58 WerFault.exe 6 9 39->58         started        64 2 other processes 41->64 66 2 other processes 45->66 process10 dnsIp11 82 4 other IPs or domains 49->82 76 211.231.99.82, 443, 49803, 49804 KAKAO-AS-KRKakaoCorpKR Korea Republic of 52->76 84 2 other IPs or domains 52->84 86 2 other IPs or domains 54->86 68 taskkill.exe 1 56->68         started        70 conhost.exe 56->70         started        78 192.168.2.1 unknown unknown 58->78 80 211.231.99.19, 443, 49935, 49936 KAKAO-AS-KRKakaoCorpKR Korea Republic of 60->80 88 16 other IPs or domains 60->88 process12
Threat name:
Win32.Trojan.Kimsuky
Status:
Malicious
First seen:
2022-01-11 07:24:00 UTC
File Type:
PE (Dll)
Extracted files:
1
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence spyware stealer vmprotect
Behaviour
Enumerates processes with tasklist
Gathers network information
Gathers system information
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
VMProtect packed file
Unpacked files
SH256 hash:
07516e88170402f72bba8794a2c50466d3979f59f6f1d882720bb90d1adcc781
MD5 hash:
2b532bfb2e117c00a0430155c14d03c8
SHA1 hash:
1d44779868187992a2664d90454d61da92dda4ad
SH256 hash:
cd3b42b2ca77ce40fb72780b4d1e589c740fe3c7e1b44a3a6faf4a4494f09b63
MD5 hash:
4a94c09fdfdc4a722aa7f017f4a90a58
SHA1 hash:
d4b614a45b3152cdedf53019ae8ae2add9de7921
Malware family:
Winnti Group
Verdict:
Malicious
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:INDICATOR_EXE_Packed_VMProtect
Author:ditekSHen
Description:Detects executables packed with VMProtect.
Rule name:Winnti_NlaifSvc
Author:Florian Roth
Description:Winnti sample - file NlaifSvc.dll
Reference:https://goo.gl/VbvJtL
Rule name:Winnti_NlaifSvc_RID2CFF
Author:Florian Roth
Description:Winnti sample - file NlaifSvc.dll
Reference:https://goo.gl/VbvJtL

File information


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

Comments