58040296fa20f62f56a9bb7f5b643205c9618f9249d4815113c18144b1300645

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
28-10-2023 18:03

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General

Target

NEAS.1a6a88efc25bc3f2576656379dfc2690.exe
Size

67KB
MD5

1a6a88efc25bc3f2576656379dfc2690
SHA1

7d5476d33ea734a662c920f3522f214e45aeab11
SHA256

58040296fa20f62f56a9bb7f5b643205c9618f9249d4815113c18144b1300645
SHA512

6b22346ba4f521cdc886ba8eb07e65446d521a059a4e304d8aaa0be6536b36e8611e46eea9f60620c77ea53de3b5bb2c7be62178b57f6928aebf9d7105551d21
SSDEEP

768:OrItKyw5WHXfQmjIiIk9ecAakMb96ZyXuDLdibfffbPPP4:Or3Z5IfQmv81abyyXcZibfffc

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
4252	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-1-5-21-177160434-2093019976-369403398-1000\Control Panel\International\Geo\Nation	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe

Executes dropped EXE 1 IoCs

pid	Process
1008	nkmhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\nkmhost.exe	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe
File opened for modification	C:\Windows\Debug\nkmhost.exe	NEAS.1a6a88efc25bc3f2576656379dfc2690.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	684	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 4252	684	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe	90
PID 684 wrote to memory of 4252	684	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe	90
PID 684 wrote to memory of 4252	684	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe	90
PID 684 wrote to memory of 3528	684	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe	93
PID 684 wrote to memory of 3528	684	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe	93
PID 684 wrote to memory of 3528	684	NEAS.1a6a88efc25bc3f2576656379dfc2690.exe	93

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4252	attrib.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.1a6a88efc25bc3f2576656379dfc2690.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.1a6a88efc25bc3f2576656379dfc2690.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:684
- 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:4252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEAS1A~1.EXE > nul
  2⤵
  PID:3528

C:\Windows\Debug\nkmhost.exe
C:\Windows\Debug\nkmhost.exe
1⤵
- Executes dropped EXE
PID:1008

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
67KB

MD5
e688075438319fa440f2ec52f3920174

SHA1
7891728c5580ba9dbd100c7bf90b9c0dcbf87d08

SHA256
79375c9bd7890d95dc484b1007ac825a0378752b77ac48903776ae83a4d52128

SHA512
0e653cc28803e929f7df61c6525be6c4a238f75fdffb73ff337062452f5c9462616f14f3fe1e48b3f592580d31c9deca029419b6f0775a629e449219e2df2f2f

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C:\Windows\debug\nkmhost.exe

Filesize
67KB

MD5
e688075438319fa440f2ec52f3920174

SHA1
7891728c5580ba9dbd100c7bf90b9c0dcbf87d08

SHA256
79375c9bd7890d95dc484b1007ac825a0378752b77ac48903776ae83a4d52128

SHA512
0e653cc28803e929f7df61c6525be6c4a238f75fdffb73ff337062452f5c9462616f14f3fe1e48b3f592580d31c9deca029419b6f0775a629e449219e2df2f2f

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads