677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12

Analysis

max time kernel
126s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-02-2024 04:52

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General

Target

677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
Size

2.5MB
MD5

ffada57f998ed6a72b6ba2f072d2690a
SHA1

6857b5f0c40a1cdb0411eb34aa9fe5029bcdb84f
SHA256

677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12
SHA512

1de77f83a89935bb3fc3772d5190c3827d76a998785d451e2c0d11a0061cfd28f1b96eccb41b012c76ddda2021e3333a0a647489ae3c6dac10cfb8302abdf33f
SSDEEP

49152:UjBP3/qGrdNJ8VZFhY++Yk/4aLq8wH7mm6qJsSRRjyl:aBPvfrAZF28k/RLbwH7mvcRRjy

Score

8^/10

evasion persistence

Malware Config

Signatures

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Executes dropped EXE 2 IoCs

pid	Process
472	Process not Found
1652	reakuqnanrkn.exe

Loads dropped DLL 1 IoCs

pid	Process
472	Process not Found

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\system32\MRT.exe	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\system32\MRT.exe	reakuqnanrkn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1652 set thread context of 2256	1652	reakuqnanrkn.exe	83

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\wusa.lock	wusa.exe
File created	C:\Windows\wusa.lock	wusa.exe

Launches sc.exe 14 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
932	sc.exe
2608	sc.exe
2636	sc.exe
1720	sc.exe
2296	sc.exe
2340	sc.exe
728	sc.exe
1008	sc.exe
2020	sc.exe
1304	sc.exe
2708	sc.exe
2880	sc.exe
2876	sc.exe
1092	sc.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage	powershell.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = e029c79cca54da01	powershell.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2896	powershell.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
2992	677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
1652	reakuqnanrkn.exe
1156	powershell.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe
1652	reakuqnanrkn.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2896	powershell.exe
Token: SeShutdownPrivilege	1200	powercfg.exe
Token: SeShutdownPrivilege	1216	powercfg.exe
Token: SeShutdownPrivilege	1020	powercfg.exe
Token: SeShutdownPrivilege	960	powercfg.exe
Token: SeDebugPrivilege	1156	powershell.exe
Token: SeShutdownPrivilege	2120	powercfg.exe
Token: SeShutdownPrivilege	3068	powercfg.exe
Token: SeShutdownPrivilege	2288	powercfg.exe
Token: SeShutdownPrivilege	2404	powercfg.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 672	2660	cmd.exe	38
PID 2660 wrote to memory of 672	2660	cmd.exe	38
PID 2660 wrote to memory of 672	2660	cmd.exe	38
PID 2844 wrote to memory of 764	2844	cmd.exe	68
PID 2844 wrote to memory of 764	2844	cmd.exe	68
PID 2844 wrote to memory of 764	2844	cmd.exe	68
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83
PID 1652 wrote to memory of 2256	1652	reakuqnanrkn.exe	83

C:\Users\Admin\AppData\Local\Temp\677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe
"C:\Users\Admin\AppData\Local\Temp\677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:2992
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2896
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop UsoSvc
  2⤵
  - Launches sc.exe
  PID:2708
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Windows\system32\wusa.exe
    wusa /uninstall /kb:890830 /quiet /norestart
    3⤵
    - Drops file in Windows directory
    PID:672
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop WaaSMedicSvc
  2⤵
  - Launches sc.exe
  PID:2296
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop wuauserv
  2⤵
  - Launches sc.exe
  PID:728
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop bits
  2⤵
  - Launches sc.exe
  PID:932
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop dosvc
  2⤵
  - Launches sc.exe
  PID:1008
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe delete "WSNKISKT"
  2⤵
  - Launches sc.exe
  PID:2880
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1020
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:960
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1200
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1216
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe create "WSNKISKT" binpath= "C:\ProgramData\wikombernizc\reakuqnanrkn.exe" start= "auto"
  2⤵
  - Launches sc.exe
  PID:2608
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop eventlog
  2⤵
  - Launches sc.exe
  PID:2020
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe start "WSNKISKT"
  2⤵
  - Launches sc.exe
  PID:1304

C:\ProgramData\wikombernizc\reakuqnanrkn.exe
C:\ProgramData\wikombernizc\reakuqnanrkn.exe
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
  2⤵
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1156
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop UsoSvc
  2⤵
  - Launches sc.exe
  PID:2876
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\system32\wusa.exe
    wusa /uninstall /kb:890830 /quiet /norestart
    3⤵
    - Drops file in Windows directory
    PID:764
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop WaaSMedicSvc
  2⤵
  - Launches sc.exe
  PID:1092
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop wuauserv
  2⤵
  - Launches sc.exe
  PID:2636
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop bits
  2⤵
  - Launches sc.exe
  PID:2340
- C:\Windows\system32\sc.exe
  C:\Windows\system32\sc.exe stop dosvc
  2⤵
  - Launches sc.exe
  PID:1720
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2120
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2288
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3068
- C:\Windows\system32\powercfg.exe
  C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2404
- C:\Windows\system32\conhost.exe
  C:\Windows\system32\conhost.exe
  2⤵
  PID:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

\ProgramData\wikombernizc\reakuqnanrkn.exe

Filesize
2.5MB

MD5
ffada57f998ed6a72b6ba2f072d2690a

SHA1
6857b5f0c40a1cdb0411eb34aa9fe5029bcdb84f

SHA256
677f393462e24fb6dba1a47b39e674f485450f91deee6076ccbad9fd5e05bd12

SHA512
1de77f83a89935bb3fc3772d5190c3827d76a998785d451e2c0d11a0061cfd28f1b96eccb41b012c76ddda2021e3333a0a647489ae3c6dac10cfb8302abdf33f

Download Submit
memory/1156-20-0x000007FEF4BF0000-0x000007FEF558D000-memory.dmp

Filesize
9.6MB

Download
memory/1156-17-0x0000000000DE0000-0x0000000000DE8000-memory.dmp

Filesize
32KB

Download
memory/1156-19-0x00000000009A0000-0x0000000000A20000-memory.dmp

Filesize
512KB

Download
memory/1156-18-0x000007FEF4BF0000-0x000007FEF558D000-memory.dmp

Filesize
9.6MB

Download
memory/1156-22-0x00000000009A0000-0x0000000000A20000-memory.dmp

Filesize
512KB

Download
memory/1156-16-0x00000000199E0000-0x0000000019CC2000-memory.dmp

Filesize
2.9MB

Download
memory/1156-24-0x000007FEF4BF0000-0x000007FEF558D000-memory.dmp

Filesize
9.6MB

Download
memory/1156-23-0x00000000009A0000-0x0000000000A20000-memory.dmp

Filesize
512KB

Download
memory/1156-21-0x00000000009A0000-0x0000000000A20000-memory.dmp

Filesize
512KB

Download
memory/2256-25-0x0000000140000000-0x000000014000E000-memory.dmp

Filesize
56KB

Download
memory/2256-29-0x0000000140000000-0x000000014000E000-memory.dmp

Filesize
56KB

Download
memory/2256-26-0x0000000140000000-0x000000014000E000-memory.dmp

Filesize
56KB

Download
memory/2256-27-0x0000000140000000-0x000000014000E000-memory.dmp

Filesize
56KB

Download
memory/2256-28-0x0000000140000000-0x000000014000E000-memory.dmp

Filesize
56KB

Download
memory/2896-11-0x000007FEF5590000-0x000007FEF5F2D000-memory.dmp

Filesize
9.6MB

Download
memory/2896-4-0x000000001B0D0000-0x000000001B3B2000-memory.dmp

Filesize
2.9MB

Download
memory/2896-7-0x00000000026A0000-0x0000000002720000-memory.dmp

Filesize
512KB

Download
memory/2896-5-0x0000000002610000-0x0000000002618000-memory.dmp

Filesize
32KB

Download
memory/2896-6-0x000007FEF5590000-0x000007FEF5F2D000-memory.dmp

Filesize
9.6MB

Download
memory/2896-10-0x00000000026A0000-0x0000000002720000-memory.dmp

Filesize
512KB

Download
memory/2896-9-0x00000000026A0000-0x0000000002720000-memory.dmp

Filesize
512KB

Download
memory/2896-8-0x000007FEF5590000-0x000007FEF5F2D000-memory.dmp

Filesize
9.6MB

Download