d5b7706d5ac679e1e8d9096bb11fd9c6a09267f7f664ea54ca648cadc3ca637a

Analysis

max time kernel
142s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2023, 12:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7ef506831605a8af28bcdeeef3e42719_JC.exe
Size

59KB
MD5

7ef506831605a8af28bcdeeef3e42719
SHA1

7877eec4e4bf878d24df54535fa0805e2efaf5f2
SHA256

d5b7706d5ac679e1e8d9096bb11fd9c6a09267f7f664ea54ca648cadc3ca637a
SHA512

d18a7be274df266c188641268c6c9a0afa8472902005f8e5e2fdb7f05b18ca7aed830f1bacba2af1bcdf9697a95b4be688b6f06b3033041bad2b116de879b047
SSDEEP

384:+5rDuuOFpEauMLfQDb2pproT/z4o1GJE6Al6zVyXeTLhrqNNNNLwwwwgD:MDcpEBMLfQcubtGE96ByXeTLdx

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
3700	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-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation	7ef506831605a8af28bcdeeef3e42719_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
3892	nkmhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\nkmhost.exe	attrib.exe
File created	C:\Windows\Debug\nkmhost.exe	7ef506831605a8af28bcdeeef3e42719_JC.exe
File opened for modification	C:\Windows\Debug\nkmhost.exe	7ef506831605a8af28bcdeeef3e42719_JC.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	4584	7ef506831605a8af28bcdeeef3e42719_JC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 3700	4584	7ef506831605a8af28bcdeeef3e42719_JC.exe	85
PID 4584 wrote to memory of 3700	4584	7ef506831605a8af28bcdeeef3e42719_JC.exe	85
PID 4584 wrote to memory of 3700	4584	7ef506831605a8af28bcdeeef3e42719_JC.exe	85
PID 4584 wrote to memory of 4148	4584	7ef506831605a8af28bcdeeef3e42719_JC.exe	89
PID 4584 wrote to memory of 4148	4584	7ef506831605a8af28bcdeeef3e42719_JC.exe	89
PID 4584 wrote to memory of 4148	4584	7ef506831605a8af28bcdeeef3e42719_JC.exe	89

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3700	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7ef506831605a8af28bcdeeef3e42719_JC.exe
"C:\Users\Admin\AppData\Local\Temp\7ef506831605a8af28bcdeeef3e42719_JC.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4584
- 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:3700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\7EF506~1.EXE > nul
  2⤵
  PID:4148

C:\Windows\Debug\nkmhost.exe
C:\Windows\Debug\nkmhost.exe
1⤵
- Executes dropped EXE
PID:3892

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\Debug\nkmhost.exe

Filesize
59KB

MD5
b86d310519e06e9afd4888769ae7f854

SHA1
87db5d6c3d3f132a2795ab6bdb623a090db0cc45

SHA256
e346fc23ceae7da018c927508866c1ba6aabb8bb2ade4bf77360ca989abe2cf9

SHA512
74d9dac94a16f505eb9d9423d1d48f5c0cb9ae8f4358b4993f44e4ee3dd778bf731b141e76f97d919ac9b65578c08d50034f95ef24ae6ec9d3fbfd7f8f2b42b1

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

Filesize
59KB

MD5
b86d310519e06e9afd4888769ae7f854

SHA1
87db5d6c3d3f132a2795ab6bdb623a090db0cc45

SHA256
e346fc23ceae7da018c927508866c1ba6aabb8bb2ade4bf77360ca989abe2cf9

SHA512
74d9dac94a16f505eb9d9423d1d48f5c0cb9ae8f4358b4993f44e4ee3dd778bf731b141e76f97d919ac9b65578c08d50034f95ef24ae6ec9d3fbfd7f8f2b42b1

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads