a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-10-2024 01:43

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General

Target

a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe
Size

97KB
MD5

0fbe2d9e674a80cb94cf3b8c7a99a5c0
SHA1

acbf82d6a891fbea28e1a997c1d7e0841a115f09
SHA256

a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593
SHA512

2ed1178c78ebfa0e91b12be5e28424de74bb3538ccca9727890945a70bd5a8291748550672068b8d43f74d597aeb44e30d84d860833249683b816441124ea578
SSDEEP

3072:FlnnJBSX1nV1b1N1Il1k1YFI1x1J1MuEqx517Q/1T1Jzct01Nbnl1RRhCHODMe1C:zw6

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4376	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	microsofthelp.exe

Loads dropped DLL 1 IoCs

pid	Process
4376	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.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	a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4376	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 696 wrote to memory of 4376	696	a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe	84
PID 696 wrote to memory of 4376	696	a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe	84
PID 696 wrote to memory of 4376	696	a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe	84

C:\Users\Admin\AppData\Local\Temp\a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe
"C:\Users\Admin\AppData\Local\Temp\a92815778cfc6ce61a77a9f457214e72815b802afc10ce3402389bcf7bcca593.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:696
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4376

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\HidePlugin.dll

Filesize
5KB

MD5
4c0b9970f96300dfa1f45afc7539d35f

SHA1
ebbb4ed2003662d78d1f32e7b6da1b6f504ae711

SHA256
4e96660cc8be7171a79755a20860366987547322b3a809e78c9850f14c242262

SHA512
579f8787b52bf62a0296d8a24753263201fbc84abec5927033e3c97576f965ead0f8422acd3f7af1345b0df0001b0cd68fa971062e21269f6940cf3e1508ca88

Download Submit
C:\Windows\microsofthelp.exe

Filesize
97KB

MD5
a7dfda64ddd6e9a5454a56925d2bf625

SHA1
b0032bd5e3ec4ecb7312e678ac64f90496167fa9

SHA256
2769f12f891e71a146e5d7b156bb140d4261d64b2b08de9d07f82a607fd359f8

SHA512
993b1423c7e6fb7dcb69cff236c0f98097b0c07042ac95b2aba7968cd2e8b130a2ad7cd3651868fdae0989dec8573e449ad304f6872d53602892fe29cc760b5e

Download Submit
memory/696-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/696-5-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4376-9-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/4376-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4376-20-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads