b81b730a806fbf4f2a238c9893e6722ac037c16fb14dca9a54eb73180dfa1d28

Analysis

max time kernel
120s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 11:05

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General

Target

eaa4ecd9411a09d873ddd65f9bc9af00N.exe
Size

37KB
MD5

eaa4ecd9411a09d873ddd65f9bc9af00
SHA1

8963cadf29cbaa88d6e748cfe108f0832166cb56
SHA256

b81b730a806fbf4f2a238c9893e6722ac037c16fb14dca9a54eb73180dfa1d28
SHA512

1f5c5c9a3b455aa48b75d17c40771c08d4e8811e4289f220c17d9ecf7a77b7153440a4a1cf7109f0787318a3b3e289b291e534799fd75772506127a4673f33a0
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6Ie:e6q10k0EFjed6rqJ+6vghzwYu7vih9GC

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1160	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1160	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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	eaa4ecd9411a09d873ddd65f9bc9af00N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	eaa4ecd9411a09d873ddd65f9bc9af00N.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	eaa4ecd9411a09d873ddd65f9bc9af00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1160	2032	eaa4ecd9411a09d873ddd65f9bc9af00N.exe	84
PID 2032 wrote to memory of 1160	2032	eaa4ecd9411a09d873ddd65f9bc9af00N.exe	84
PID 2032 wrote to memory of 1160	2032	eaa4ecd9411a09d873ddd65f9bc9af00N.exe	84

C:\Users\Admin\AppData\Local\Temp\eaa4ecd9411a09d873ddd65f9bc9af00N.exe
"C:\Users\Admin\AppData\Local\Temp\eaa4ecd9411a09d873ddd65f9bc9af00N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- 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:1160

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
0ec26ede6b3de6cf93afd970da4e27e0

SHA1
33e7b3b8b5432d65e9569387c0c23e530363f6af

SHA256
6edda5184f0a3bacf0be026b293872c8c7553627790a92d7bb22f16cbca50bcc

SHA512
6a745c67b28713c28f96165f43960e22b464836325f9622152b1f60a2d83fce2d8a7610c4e2c62bf6ba0437baa1b3e1ef9647b1fd7fcc1473589e08938a2a684

Download Submit
memory/1160-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2032-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2032-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads