446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 21:06

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General

Target

446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe
Size

46KB
MD5

3ed540b5a2eef653ad80c12742d26571
SHA1

4b294116a2e3b0c334772b3be515ea02f45a087e
SHA256

446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1
SHA512

a37afd84421d83dd450be656e3a7e233f4f7375e0a7a278eb73e59de9ca8369cdfa2af6590302496699846b5cec227fb3a71127a9d1f0e6a1fb58e6e9127a812
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhH:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYn

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4908	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4908	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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 4908	1540	446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe	83
PID 1540 wrote to memory of 4908	1540	446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe	83
PID 1540 wrote to memory of 4908	1540	446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe	83

C:\Users\Admin\AppData\Local\Temp\446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe
"C:\Users\Admin\AppData\Local\Temp\446d9c5b3f43bae62a764e53cd0caaa150780d50b71994b603d865e6f48874f1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4908

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
46KB

MD5
8e1ac19d860dd4d6e98f82782f75f97c

SHA1
2457ec694354f96ae88853c0913e1d06ec433e50

SHA256
7a2a3141392d22d8529df856cc84c354b5fd281fcbef51ac427c5a53530b5718

SHA512
7a60e465b8ef1c866d22513136b73e46c232238e5bc6e41a6dc09285514146df8d6a3a5e71467c8aa8657ed501124877e24b487f827a121668978283ad3a9c83

Download Submit
memory/1540-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1540-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4908-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads