MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4c1b4defad0f0e3efac5ce2d045b75c1715bcf9192e27eb244429eb9ea3bb00. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4c1b4defad0f0e3efac5ce2d045b75c1715bcf9192e27eb244429eb9ea3bb00
SHA3-384 hash: 69e4f3fb9f38020267934439948518601efec033034827b409545d32381dcfddf9cab0b472f00eeffa118bb21dfbe104
SHA1 hash: 63f81c5916d5527515f84e9dd7dae4b40bbb91fa
MD5 hash: c62ee611838a300d6f54fd9123ad7762
humanhash: early-march-romeo-ceiling
File name:a4c1b4defad0f0e3efac5ce2d045b75c1715bcf9192e27eb244429eb9ea3bb00
Download: download sample
Signature Kimsuky
Create hunting rule
File size:552'960 bytes
First seen:2022-03-18 09:51:12 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash b65eaa02cd18f089515d00d1b3b1f58d (1 x Kimsuky)
ssdeep 12288:Jj43BZ09iOgXqIXLUdrDjCsii5Aew0I/LD4lwF:Jj43H0FM6rDesrWew0MLD4li
Threatray 6'269 similar samples on MalwareBazaar
TLSH T1A3C423994CA7953CEC838E749B20C41CF26CB897F17B9B2D43CE1160E22BE8951E7566
Reporter JAMESWT_WT
Tags:dll Kimsuky

Intelligence

File Origin
# of uploads :
1
# of downloads :
159
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/252397/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.24206.14534.21178.UNOFFICIAL
Create hunting rule

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
Launching a tool to kill processes
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
explorer.exe packed shell32.dll winnti
Link:
https://www.filescan.io/uploads/6234564ab94fb38cb4a1d003/reports/dca4b75e-139d-448f-9c04-0b2167d1a625/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/aa1cd63c-01f8-4582-a1af-00c1815950f2
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/959822
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to inject code into remote processes
Detected VMProtect packer
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 592303 Sample: RDxmCzRzW3 Startdate: 18/03/2022 Architecture: WINDOWS Score: 100 88 logins.daum.net 2->88 90 logins-ltm0w7xt.kgslb.com 2->90 98 Malicious sample detected (through community Yara rule) 2->98 100 Antivirus detection for dropped file 2->100 102 Antivirus / Scanner detection for submitted sample 2->102 104 8 other signatures 2->104 10 loaddll32.exe 1 2->10         started        12 rundll32.exe 2->12         started        14 rundll32.exe 2->14         started        signatures3 process4 process5 16 rundll32.exe 5 10->16         started        19 rundll32.exe 5 10->19         started        21 cmd.exe 1 10->21         started        23 rundll32.exe 6 10->23         started        25 rundll32.exe 12->25         started        27 rundll32.exe 5 14->27         started        signatures6 92 Writes to foreign memory regions 16->92 94 Allocates memory in foreign processes 16->94 96 Injects a PE file into a foreign processes 16->96 29 svchost.exe 9 16->29         started        32 svchost.exe 19->32         started        34 svchost.exe 19->34         started        36 svchost.exe 19->36         started        38 rundll32.exe 1 8 21->38         started        41 cmd.exe 23->41         started        43 WerFault.exe 23->43         started        47 3 other processes 25->47 45 svchost.exe 27->45         started        process7 file8 106 Contains functionality to inject code into remote processes 29->106 108 Writes to foreign memory regions 29->108 110 Allocates memory in foreign processes 29->110 112 Injects a PE file into a foreign processes 29->112 49 iexplore.exe 29->49         started        52 iexplore.exe 29->52         started        54 iexplore.exe 29->54         started        64 15 other processes 29->64 70 C:\Users\user\AppData\...\iertutil.dll, PE32 38->70 dropped 72 C:\Users\...\iertutil.dll:Zone.Identifier, ASCII 38->72 dropped 56 cmd.exe 1 38->56         started        58 WerFault.exe 9 38->58         started        60 taskkill.exe 1 41->60         started        62 conhost.exe 41->62         started        signatures9 process10 dnsIp11 80 4 other IPs or domains 49->80 74 203.133.167.18, 443, 49789, 49791 DAUM-NETKakaoCorpKR Korea Republic of 52->74 82 2 other IPs or domains 52->82 84 2 other IPs or domains 54->84 66 taskkill.exe 1 56->66         started        68 conhost.exe 56->68         started        76 211.231.99.19, 443, 49841, 49842 KAKAO-AS-KRKakaoCorpKR Korea Republic of 64->76 78 211.231.99.82, 443, 49897, 49898 KAKAO-AS-KRKakaoCorpKR Korea Republic of 64->78 86 19 other IPs or domains 64->86 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4c1b4defad0f0e3efac5ce2d045b75c1715bcf9192e27eb244429eb9ea3bb00/
Threat name:
Win32.Trojan.Kimsuky
Create hunting rule
Status:
Malicious
First seen:
2022-01-11 07:34:00 UTC
File Type:
PE (Dll)
Extracted files:
1
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
142dc674a687ade3bc56e2e78f0a6dc0603d81f176f8a9d794d909b6839bcc5b
Kimsuky
1aa23a53ad457b7a374cba2c3e378f486a7887dffd8791292a1bf3d8124ac25c
Kimsuky
1db2ec499c11b096c4a468a878a9e6bb791183ca2156eb2e8c233fd7b172b607
Kimsuky
4c6f0294b0ede5a8663a2186bf2368e243d03c94b3b91d851b03a9562b5594d3
Kimsuky
4f48ef3036b8e2b724cbf9ec618f35baf7cb5e2017dc5fae4825659a28b58e68
Kimsuky
67e030c1c7dd08138eb1d6a12a4d652c4a304f22db556afce411c32a23bddf23
Kimsuky
8c81fdf79b9dac3c659e6c56f5c450057f489f37365091aa8677181574f2bf2a
Kimsuky
9f86527e3ca4530bb3209d8608dae083afab4ef2cf7b0ae23bcd6fdc322a0c33
Kimsuky
e2cfdb4ff5c27aa1a10a7748bf005f03d7d3562257eb10c434456ae77917898d
Kimsuky
eee3d70ef0eb418264c10075b901845b097297613637892efb77aecb236c5e11
Kimsuky
+ 6'259 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence spyware stealer vmprotect
Link:
https://tria.ge/reports/220318-lv3ywahab8/
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
VMProtect packed file
Unpacked files
SH256 hash:
9baeb29e3e26cbecf5efad3fb9a46875786dc9d16c396c7c2d5f23632677b04f
MD5 hash:
9977aa19309a140f835907965940e8b6
SHA1 hash:
97302f1af56e4a8ebfb772f256821a9374d2bad3
Link:
https://www.unpac.me/results/34be201c-9cdf-460a-8942-39b744534f15/
SH256 hash:
a4c1b4defad0f0e3efac5ce2d045b75c1715bcf9192e27eb244429eb9ea3bb00
MD5 hash:
c62ee611838a300d6f54fd9123ad7762
SHA1 hash:
63f81c5916d5527515f84e9dd7dae4b40bbb91fa
Link:
https://www.unpac.me/results/34be201c-9cdf-460a-8942-39b744534f15/
Malware family:
Winnti Group
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a4c1b4defad0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/a4c1b4defad0f0e3efac5ce2d045b75c1715bcf9192e27eb244429eb9ea3bb00

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
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with VMProtect.
Rule name:Winnti_NlaifSvc
Create hunting rule
Author:Florian Roth
Description:Winnti sample - file NlaifSvc.dll
Reference:https://goo.gl/VbvJtL
Rule name:Winnti_NlaifSvc_RID2CFF
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/252397/

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