66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93c

Analysis

max time kernel
119s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 19:13

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General

Target

66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe
Size

67KB
MD5

c83505dbc24198679fc467320ad0fcf0
SHA1

62ccebdbfc1197e66a4e349eb09658807ebfa05a
SHA256

66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93c
SHA512

7c34bd206349d99aa831b23f094cf3bbdca7df259675dc3e2eead627a1c5fb677f20ff5c13046ffad206c7913d585a0f3c0926e892b8a78a777233f360ece26e
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjUvJjWH0HhSkhhHWPa:NAoglOwvl4ulkP6vghzwYu7vih9GueIK

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
516	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
516	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"	66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.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	66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 516	3272	66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe	84
PID 3272 wrote to memory of 516	3272	66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe	84
PID 3272 wrote to memory of 516	3272	66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe	84

C:\Users\Admin\AppData\Local\Temp\66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe
"C:\Users\Admin\AppData\Local\Temp\66625ac40d76379d37080d8e0421950ea22c7294f1f0b07c213243a0d93ea93cN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3272
- 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:516

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
68KB

MD5
806996a5f3a5696ef71429563bb64886

SHA1
d36e74386f4fe28d2f5b76426b0459927118c415

SHA256
8cd37d1e07cd9358ac320bcfd9ff425eab5b4c4a309d6cc66a36883500c1c718

SHA512
451c169cfe718eb0011dde987e4750b30604b1bbe9ca76e0081f4c55435fb3df05b3dd78ac37df2aeae954e4a68ac96e630850e9f9bce7a6e6bb5b6e2c66058b

Download Submit
memory/516-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3272-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3272-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads