8f2e28588f2303bd8d7a9b0c3ff6a9cb16fa93f8ddc9c5e0666a8c12d6880ee3

Analysis

max time kernel
99s
max time network
103s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
24-12-2024 12:17

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General

Target

Bootstrapper.exe
Size

800KB
MD5

02c70d9d6696950c198db93b7f6a835e
SHA1

30231a467a49cc37768eea0f55f4bea1cbfb48e2
SHA256

8f2e28588f2303bd8d7a9b0c3ff6a9cb16fa93f8ddc9c5e0666a8c12d6880ee3
SHA512

431d9b9918553bff4f4a5bc2a5e7b7015f8ad0e2d390bb4d5264d08983372424156524ef5587b24b67d1226856fc630aaca08edc8113097e0094501b4f08efeb
SSDEEP

12288:qhd8cjaLXVh84wEFkW1mocaBj6WtiRPpptHxQ0z:2ycjar84w5W4ocaBj6y2tHDz

Score

8^/10

discovery

Malware Config

Signatures

Downloads MZ/PE file

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-1-5-21-4084745894-3294430273-2212167662-1000\Control Panel\International\Geo\Nation	Bootstrapper.exe

Executes dropped EXE 1 IoCs

pid	Process
2212	BootstrapperV2.04.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Panther\UnattendGC\setupact.log	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\setuperr.log	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\diagerr.xml	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\diagwrn.xml	UserOOBEBroker.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 1 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	FileCoAuth.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4916	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4084	WMIC.exe
4084	WMIC.exe
4084	WMIC.exe
4084	WMIC.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4084	WMIC.exe
Token: SeSecurityPrivilege	4084	WMIC.exe
Token: SeTakeOwnershipPrivilege	4084	WMIC.exe
Token: SeLoadDriverPrivilege	4084	WMIC.exe
Token: SeSystemProfilePrivilege	4084	WMIC.exe
Token: SeSystemtimePrivilege	4084	WMIC.exe
Token: SeProfSingleProcessPrivilege	4084	WMIC.exe
Token: SeIncBasePriorityPrivilege	4084	WMIC.exe
Token: SeCreatePagefilePrivilege	4084	WMIC.exe
Token: SeBackupPrivilege	4084	WMIC.exe
Token: SeRestorePrivilege	4084	WMIC.exe
Token: SeShutdownPrivilege	4084	WMIC.exe
Token: SeDebugPrivilege	4084	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4084	WMIC.exe
Token: SeRemoteShutdownPrivilege	4084	WMIC.exe
Token: SeUndockPrivilege	4084	WMIC.exe
Token: SeManageVolumePrivilege	4084	WMIC.exe
Token: 33	4084	WMIC.exe
Token: 34	4084	WMIC.exe
Token: 35	4084	WMIC.exe
Token: 36	4084	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4084	WMIC.exe
Token: SeSecurityPrivilege	4084	WMIC.exe
Token: SeTakeOwnershipPrivilege	4084	WMIC.exe
Token: SeLoadDriverPrivilege	4084	WMIC.exe
Token: SeSystemProfilePrivilege	4084	WMIC.exe
Token: SeSystemtimePrivilege	4084	WMIC.exe
Token: SeProfSingleProcessPrivilege	4084	WMIC.exe
Token: SeIncBasePriorityPrivilege	4084	WMIC.exe
Token: SeCreatePagefilePrivilege	4084	WMIC.exe
Token: SeBackupPrivilege	4084	WMIC.exe
Token: SeRestorePrivilege	4084	WMIC.exe
Token: SeShutdownPrivilege	4084	WMIC.exe
Token: SeDebugPrivilege	4084	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4084	WMIC.exe
Token: SeRemoteShutdownPrivilege	4084	WMIC.exe
Token: SeUndockPrivilege	4084	WMIC.exe
Token: SeManageVolumePrivilege	4084	WMIC.exe
Token: 33	4084	WMIC.exe
Token: 34	4084	WMIC.exe
Token: 35	4084	WMIC.exe
Token: 36	4084	WMIC.exe
Token: SeDebugPrivilege	4276	Bootstrapper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4276	SecHealthUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 4360	4276	Bootstrapper.exe	84
PID 4276 wrote to memory of 4360	4276	Bootstrapper.exe	84
PID 4360 wrote to memory of 4916	4360	cmd.exe	86
PID 4360 wrote to memory of 4916	4360	cmd.exe	86
PID 4276 wrote to memory of 4952	4276	Bootstrapper.exe	92
PID 4276 wrote to memory of 4952	4276	Bootstrapper.exe	92
PID 4952 wrote to memory of 4084	4952	cmd.exe	94
PID 4952 wrote to memory of 4084	4952	cmd.exe	94
PID 4276 wrote to memory of 2212	4276	Bootstrapper.exe	107
PID 4276 wrote to memory of 2212	4276	Bootstrapper.exe	107

C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4276
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c ipconfig /all
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4360
- - C:\Windows\system32\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:4916
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4084
- C:\Users\Admin\AppData\Local\Temp\BootstrapperV2.04.exe
  "C:\Users\Admin\AppData\Local\Temp\BootstrapperV2.04.exe" --oldBootstrapper "C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe" --isUpdate true
  2⤵
  - Executes dropped EXE
  PID:2212

C:\Windows\System32\oobe\UserOOBEBroker.exe
C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
1⤵
- Drops file in Windows directory
PID:3508

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe
C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding
1⤵
- System Location Discovery: System Language Discovery
PID:1056

C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe
"C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe" -ServerName:SecHealthUI.AppXep4x2tbtjws1v9qqs0rmb3hxykvkpqtn.mca
1⤵
- Suspicious use of SetWindowsHookEx
PID:4276

C:\Windows\System32\SecurityHealthHost.exe
C:\Windows\System32\SecurityHealthHost.exe {E041C90B-68BA-42C9-991E-477B73A75C90} -Embedding
1⤵
PID:1784

C:\Windows\System32\SecurityHealthHost.exe
C:\Windows\System32\SecurityHealthHost.exe {E041C90B-68BA-42C9-991E-477B73A75C90} -Embedding
1⤵
PID:1556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

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\Temp\BootstrapperV2.04.exe

Filesize
2.8MB

MD5
be4da425d9b7593e358ffbfca29f9c70

SHA1
dc98530aad9728d779866ae957a738c52b13a565

SHA256
c5277ddb6e51181d2b8bad59acf5f2badf5613b1e73384a84b793f720aa76c0d

SHA512
35790944f5855038f8357c0f6d11ea81b260632e590c26f9342e8beb1a8dfd2e3eb9efa11f8378f8542cad45e7675af3d29cf27424accf35aaa6aeb34487155b

Download Submit
memory/2212-26-0x000002696E100000-0x000002696E138000-memory.dmp

Filesize
224KB

Download
memory/2212-35-0x000002696E8C0000-0x000002696E8C8000-memory.dmp

Filesize
32KB

Download
memory/2212-25-0x000002696E080000-0x000002696E088000-memory.dmp

Filesize
32KB

Download
memory/2212-34-0x000002696E0F0000-0x000002696E0FA000-memory.dmp

Filesize
40KB

Download
memory/2212-33-0x000002696E170000-0x000002696E17A000-memory.dmp

Filesize
40KB

Download
memory/2212-22-0x000002694EDE0000-0x000002694F0BA000-memory.dmp

Filesize
2.9MB

Download
memory/2212-32-0x000002696E890000-0x000002696E8A6000-memory.dmp

Filesize
88KB

Download
memory/2212-24-0x0000026950D50000-0x0000026950D60000-memory.dmp

Filesize
64KB

Download
memory/2212-31-0x000002696E180000-0x000002696E188000-memory.dmp

Filesize
32KB

Download
memory/2212-30-0x000002696E140000-0x000002696E168000-memory.dmp

Filesize
160KB

Download
memory/2212-28-0x000002696E790000-0x000002696E890000-memory.dmp

Filesize
1024KB

Download
memory/2212-27-0x000002696E0D0000-0x000002696E0DE000-memory.dmp

Filesize
56KB

Download
memory/2212-29-0x000002696E0E0000-0x000002696E0EA000-memory.dmp

Filesize
40KB

Download
memory/4276-2-0x00007FFDAE410000-0x00007FFDAEED2000-memory.dmp

Filesize
10.8MB

Download
memory/4276-4-0x0000020E39CB0000-0x0000020E39CD2000-memory.dmp

Filesize
136KB

Download
memory/4276-21-0x00007FFDAE410000-0x00007FFDAEED2000-memory.dmp

Filesize
10.8MB

Download
memory/4276-1-0x0000020E37E70000-0x0000020E37F3E000-memory.dmp

Filesize
824KB

Download
memory/4276-6-0x00007FFDAE413000-0x00007FFDAE415000-memory.dmp

Filesize
8KB

Download
memory/4276-0-0x00007FFDAE413000-0x00007FFDAE415000-memory.dmp

Filesize
8KB

Download