4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68

Analysis

max time kernel
119s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 04:12

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General

Target

4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe
Size

38KB
MD5

92b6232066c1fb65fe9984c3a0031450
SHA1

1dd0ab3f901ed4c5a7ee9736ca5f96a8049dd5ef
SHA256

4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68
SHA512

9096cd682b882d9cec40725cc550174af6f8271930bd06a843fb753e1754337d4ea6123b916895e8d55250ddf62d48a076a102844f9ec1b4e31e5cf71bb9e024
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjUvJw3/h:e6q10k0EFjed6rqJ+6vghzwYu7vih9G2

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2484	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2484	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3696 wrote to memory of 2484	3696	4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe	84
PID 3696 wrote to memory of 2484	3696	4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe	84
PID 3696 wrote to memory of 2484	3696	4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe	84

C:\Users\Admin\AppData\Local\Temp\4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe
"C:\Users\Admin\AppData\Local\Temp\4137b75e4a475c7af7f50df6de87c7bf8f6bdba5aff0603cfda459df7c8d5f68N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3696
- 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:2484

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
38KB

MD5
742e94d86d284463471a1e8ab5e98fd0

SHA1
0799165625af62dd43e8e287b73e04670fb02ced

SHA256
a6937f0a4bf030d2de301926a3b7ecf37878aba5b56080c9c9d96c3236cad849

SHA512
0bffa9a7c59600589817f9a400df5a9891cd965b4f7b953eca4c67725a102234ee6c9522d9435bb3a2860c16546f14f34bcea40526e66e8c0b18bf708f342365

Download Submit
memory/2484-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3696-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3696-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads