b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf

Analysis

max time kernel
150s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2025 06:50

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General

Target

b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe
Size

93KB
MD5

a9ba2416df448c5f3b36581ecfa4cd31
SHA1

105592c84c83cbf4e6f7b6978ecb6d37c99440b7
SHA256

b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf
SHA512

456ffb46cf5d914108a68292e1f9e73665e7dd3905015c76709ecc954d02b50d9dfdd758c2178791d75aa1010b7c0f2e0cf92659f2471a227497343477e6c9f3
SSDEEP

768:+Y3DCdhWXxyFcxovUKUJuROprXtgN8eYhYbmXxrjEtCdnl2pi1Rz4Rk3GsGdpQgM:hCzWhIUKcuOJXPhBjEwzGi1dDiDQgS

Score

8^/10

defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Disables Task Manager via registry modification
defense_evasion

Modifies Windows Firewall 2 TTPs 3 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1976	netsh.exe
1748	netsh.exe
1844	netsh.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Security Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Security Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\67364a37f43593883a7b70eb2426799aWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\67364a37f43593883a7b70eb2426799aWindows Update.exe	server.exe

Executes dropped EXE 3 IoCs

pid	Process
4000	server.exe
2604	StUpdate.exe
4512	StUpdate.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4504	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe
4000	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4000	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe
Token: 33	4000	server.exe
Token: SeIncBasePriorityPrivilege	4000	server.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 4000	1692	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe	82
PID 1692 wrote to memory of 4000	1692	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe	82
PID 1692 wrote to memory of 4000	1692	b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe	82
PID 4000 wrote to memory of 1976	4000	server.exe	83
PID 4000 wrote to memory of 1976	4000	server.exe	83
PID 4000 wrote to memory of 1976	4000	server.exe	83
PID 4000 wrote to memory of 1748	4000	server.exe	85
PID 4000 wrote to memory of 1748	4000	server.exe	85
PID 4000 wrote to memory of 1748	4000	server.exe	85
PID 4000 wrote to memory of 1844	4000	server.exe	86
PID 4000 wrote to memory of 1844	4000	server.exe	86
PID 4000 wrote to memory of 1844	4000	server.exe	86
PID 4000 wrote to memory of 4504	4000	server.exe	88
PID 4000 wrote to memory of 4504	4000	server.exe	88
PID 4000 wrote to memory of 4504	4000	server.exe	88

C:\Users\Admin\AppData\Local\Temp\b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe
"C:\Users\Admin\AppData\Local\Temp\b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4000
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1976
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1748
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1844
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4504

C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2604

C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

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\StUpdate.exe.log

Filesize
408B

MD5
661cab77d3b907e8057f2e689e995af3

SHA1
5d1a0ee9c5ee7a7a90d56d00c10dc0e679bee01c

SHA256
8f27f95ad7c09f2e05d7960e78ef8cd935c1262e9657883a75d70dcb877592d2

SHA512
2523b316bd79fed0e9b3d73f46959f3dfe270cf950f34bd9d49fe4113a2ae46d0cd00224d848bc40c0d8c55449e2dccc4b4278ba4809c0ca9ede1ac75673fc67

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
a9ba2416df448c5f3b36581ecfa4cd31

SHA1
105592c84c83cbf4e6f7b6978ecb6d37c99440b7

SHA256
b12ace477963fdde7e7b3c3b81dc01d585d87097e68bed90f5dd41077556b4bf

SHA512
456ffb46cf5d914108a68292e1f9e73665e7dd3905015c76709ecc954d02b50d9dfdd758c2178791d75aa1010b7c0f2e0cf92659f2471a227497343477e6c9f3

Download Submit
C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
7eb860abfe2281298575b5216ef42bc6

SHA1
d4dfd7ac22dcd07da34306c40b4e5367a969cda5

SHA256
83d46461bf45f00cb4fc5df9679b2bd82dbf54eeb022ca1711eefb4b2e7b7689

SHA512
427bfc41f0514ee10d400eea38f22f6fac6f9d5ecd84ad7adb1161ff9355e47c04ff411e172fafcd23c137ad1528ed2f2cb95d247613ae5550c089633f18994d

Download Submit
memory/1692-0-0x0000000075412000-0x0000000075413000-memory.dmp

Filesize
4KB

Download
memory/1692-1-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/1692-2-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/1692-14-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4000-13-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4000-21-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4000-23-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4000-22-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download