863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6

Analysis

max time kernel
119s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 04:30

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General

Target

863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe
Size

164KB
MD5

865bf3d2eeb62c50359ede787f510100
SHA1

462a1745c2da3d1ae7688a3fda60e441debede32
SHA256

863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6
SHA512

6d37e88b08fbff52db3db3b19627f49cdad54082c9b34ad8decb90857ab8318b14764a3ee5e6a4dd96f4e272daf8ebfb79139bc3332d8842368431383932d862
SSDEEP

3072:8w11/wTvYZDDNF90qhRb70L8czxE2YY6q9bLzl6fHMEBuo:8wZD9b70wczSTYh9bAlD

Score

7^/10

discovery persistence

Malware Config

Signatures

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupHelper.exe	StartupHelper.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupHelper.exe	StartupHelper.exe

Executes dropped EXE 3 IoCs

pid	Process
5084	StartupHelper.exe
1444	StartupHelper.exe
544	StartupHelper.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StartupHelper.exe = "\"C:\\Windows\\StartupHelper.exe\" .."	StartupHelper.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\StartupHelper.exe = "\"C:\\Windows\\StartupHelper.exe\" .."	StartupHelper.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\StartupHelper.exe	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StartupHelper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StartupHelper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StartupHelper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2708	schtasks.exe
444	schtasks.exe
2940	schtasks.exe
4500	schtasks.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe
Token: 33	5084	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	5084	StartupHelper.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 1572	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	83
PID 1200 wrote to memory of 1572	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	83
PID 1200 wrote to memory of 1572	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	83
PID 1200 wrote to memory of 444	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	85
PID 1200 wrote to memory of 444	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	85
PID 1200 wrote to memory of 444	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	85
PID 1200 wrote to memory of 5084	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	87
PID 1200 wrote to memory of 5084	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	87
PID 1200 wrote to memory of 5084	1200	863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe	87
PID 5084 wrote to memory of 1072	5084	StartupHelper.exe	88
PID 5084 wrote to memory of 1072	5084	StartupHelper.exe	88
PID 5084 wrote to memory of 1072	5084	StartupHelper.exe	88
PID 5084 wrote to memory of 2940	5084	StartupHelper.exe	90
PID 5084 wrote to memory of 2940	5084	StartupHelper.exe	90
PID 5084 wrote to memory of 2940	5084	StartupHelper.exe	90
PID 1444 wrote to memory of 3124	1444	StartupHelper.exe	102
PID 1444 wrote to memory of 3124	1444	StartupHelper.exe	102
PID 1444 wrote to memory of 3124	1444	StartupHelper.exe	102
PID 1444 wrote to memory of 4500	1444	StartupHelper.exe	106
PID 1444 wrote to memory of 4500	1444	StartupHelper.exe	106
PID 1444 wrote to memory of 4500	1444	StartupHelper.exe	106
PID 544 wrote to memory of 2564	544	StartupHelper.exe	115
PID 544 wrote to memory of 2564	544	StartupHelper.exe	115
PID 544 wrote to memory of 2564	544	StartupHelper.exe	115
PID 544 wrote to memory of 2708	544	StartupHelper.exe	117
PID 544 wrote to memory of 2708	544	StartupHelper.exe	117
PID 544 wrote to memory of 2708	544	StartupHelper.exe	117

C:\Users\Admin\AppData\Local\Temp\863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe
"C:\Users\Admin\AppData\Local\Temp\863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1572
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6N.exe" /sc minute /mo 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:444
- C:\Windows\StartupHelper.exe
  "C:\Windows\StartupHelper.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5084
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1072
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Windows\StartupHelper.exe" /sc minute /mo 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2940

C:\Windows\StartupHelper.exe
C:\Windows\StartupHelper.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3124
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Windows\StartupHelper.exe" /sc minute /mo 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4500

C:\Windows\StartupHelper.exe
C:\Windows\StartupHelper.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:544
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Windows\StartupHelper.exe" /sc minute /mo 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\StartupHelper.exe.log

Filesize
408B

MD5
40b0c3caa1b14a4c83e8475c46bf2016

SHA1
af9575cda4d842f028d18b17063796a894ecd9d0

SHA256
70e88a428d92b6ab5905dac9f324824c4c6f120bc3f385c82b2d12f707a4a867

SHA512
916437df737de4b6063b7116b4d148229d4a975eb4046122d47434b81fba06e88e09e5f273ec496c81ef3feecb843ccad20a7a04074224416c1fa9951acbdac7

Download Submit
C:\Windows\StartupHelper.exe

Filesize
164KB

MD5
865bf3d2eeb62c50359ede787f510100

SHA1
462a1745c2da3d1ae7688a3fda60e441debede32

SHA256
863a54fcc0edc46e52df772d40698c5645029ea6031022ea8e19a686245d49c6

SHA512
6d37e88b08fbff52db3db3b19627f49cdad54082c9b34ad8decb90857ab8318b14764a3ee5e6a4dd96f4e272daf8ebfb79139bc3332d8842368431383932d862

Download Submit
memory/1200-0-0x00000000750A2000-0x00000000750A3000-memory.dmp

Filesize
4KB

Download
memory/1200-1-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download
memory/1200-2-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download
memory/1200-13-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download
memory/5084-12-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download
memory/5084-16-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads