2655c04575180791a3e22cca82b3139076ae12b9ee335931d5e951e7fc71b934

Analysis

max time kernel
141s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
05/11/2023, 06:23

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General

Target

NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe
Size

58KB
MD5

502a0c13f4627419e68395d5bdfdf410
SHA1

65aeeec78932229ec3459097b5efb38d77b61fdc
SHA256

2655c04575180791a3e22cca82b3139076ae12b9ee335931d5e951e7fc71b934
SHA512

a65372f6e17789d713954367c5da02aba92358bc3e382597975c1c07ef9305a6479957127c7639eb1a51f6f637af3b1529fcee17486526648ad192cb1ccd0c12
SSDEEP

384:+5rDuuOFpEauMLfQDb2pproT/z4m5m1GJE6Al6z8yXDTLhrwnR:MDcpEBMLfQcubV5wGE96YyXDTLdoR

Score

8^/10

evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
600	attrib.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Control Panel\International\Geo\Nation	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
432	nkmhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\nkmhost.exe	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe
File opened for modification	C:\Windows\Debug\nkmhost.exe	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe
File opened for modification	C:\Windows\Debug\nkmhost.exe	attrib.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	712	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 712 wrote to memory of 600	712	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	86
PID 712 wrote to memory of 600	712	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	86
PID 712 wrote to memory of 600	712	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	86
PID 712 wrote to memory of 4952	712	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	90
PID 712 wrote to memory of 4952	712	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	90
PID 712 wrote to memory of 4952	712	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	90

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
600	attrib.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:712
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\nkmhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEAS50~1.EXE > nul
  2⤵
  PID:4952

C:\Windows\Debug\nkmhost.exe
C:\Windows\Debug\nkmhost.exe
1⤵
- Executes dropped EXE
PID:432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\nkmhost.exe

Filesize
58KB

MD5
c81c51563c3319df13155751699e4163

SHA1
43faff39690709c128e9d0b2fce005edbacf053a

SHA256
f44cd20163a0bc4c865f85a62d1854eb808d47f0bf6f247a3bd3d625e0b2fb90

SHA512
2d488f177c3029dc3f0f892bdc614d63c6e778942f61062f8b759c22585efff6380c034f7658896cfec21f181a2495077825bca2bf1fd59f381121af01b27b84

Download Submit
C:\Windows\debug\nkmhost.exe

Filesize
58KB

MD5
c81c51563c3319df13155751699e4163

SHA1
43faff39690709c128e9d0b2fce005edbacf053a

SHA256
f44cd20163a0bc4c865f85a62d1854eb808d47f0bf6f247a3bd3d625e0b2fb90

SHA512
2d488f177c3029dc3f0f892bdc614d63c6e778942f61062f8b759c22585efff6380c034f7658896cfec21f181a2495077825bca2bf1fd59f381121af01b27b84

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads