525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377b

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 01:28

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General

Target

525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe
Size

72KB
MD5

5d0d711f54082defd4703043ac6f4730
SHA1

6a718b32518bfd503eb20b3d32475f8ecab141e4
SHA256

525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377b
SHA512

afdf5cc92f4f3540f0755dd65f675130989115b852243ac6ada6a9aa745364782ed8544180b83050b4362de84ddf43effe63ec16794dc066a20a5da1b112f1b4
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHh6hjh6u:NAoglOwvl4ulkP6vghzwYu7vih9GueIc

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

microsofthelp.exe

pid process

1304 microsofthelp.exe
Executes dropped EXE 1 IoCs

Processes:

microsofthelp.exe

pid process

1304 microsofthelp.exe

pid	process
1304	microsofthelp.exe

pid	process
1304	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe

Drops file in Windows directory 2 IoCs

Processes:

525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exemicrosofthelp.exe

description	ioc	process
File created	C:\Windows\microsofthelp.exe	525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exemicrosofthelp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe

description	pid	process	target process
PID 4180 wrote to memory of 1304	4180	525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe	microsofthelp.exe
PID 4180 wrote to memory of 1304	4180	525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe	microsofthelp.exe
PID 4180 wrote to memory of 1304	4180	525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe	microsofthelp.exe

C:\Users\Admin\AppData\Local\Temp\525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe
"C:\Users\Admin\AppData\Local\Temp\525d4e03c2819350d3e9c1d1050c6a1e91fff1721254b2eac69d02e8c10d377bN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:1304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
73KB

MD5
964e3f53dd9b94a2b897d8a57eb522b4

SHA1
c6328ff51cafba7b8c4842938f1d5b00e51485f4

SHA256
a1d7c4785a251940b5f5a29609aed60eda92c116c7f48c0431a61af39379a4d2

SHA512
0c049099463e473d7668d87c1655ee6b6d1644ef29f15b530fb8f3e24a5748209b5a755bdf0ef05475e46bb33d551ab2ca430fd96ec78b975c156d002f20b304

Download Submit
memory/1304-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4180-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4180-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download