0f8e0cfcff9b1883998eba1065b46665d790332e1fdf4668c2c3da3e88ec6560

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01/08/2024, 21:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

05a3736e961392886945f3d5e64361f0N.exe
Size

41KB
MD5

05a3736e961392886945f3d5e64361f0
SHA1

0a99e6ea33e9d3dff8c1b610d51d77a97792c63f
SHA256

0f8e0cfcff9b1883998eba1065b46665d790332e1fdf4668c2c3da3e88ec6560
SHA512

fc90afa0076300e20372ef0f1ef1e21da21f75e3fd77405a79653f357e10fdaa3992045a5fa37da9515240a27cb09b128228d0186ace3b43b6b4aa6100c3995f
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhf:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wY/

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4084	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4084	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-1-5-21-1266786182-1874524688-71015548-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	05a3736e961392886945f3d5e64361f0N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	05a3736e961392886945f3d5e64361f0N.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	05a3736e961392886945f3d5e64361f0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 4084	1736	05a3736e961392886945f3d5e64361f0N.exe	83
PID 1736 wrote to memory of 4084	1736	05a3736e961392886945f3d5e64361f0N.exe	83
PID 1736 wrote to memory of 4084	1736	05a3736e961392886945f3d5e64361f0N.exe	83

C:\Users\Admin\AppData\Local\Temp\05a3736e961392886945f3d5e64361f0N.exe
"C:\Users\Admin\AppData\Local\Temp\05a3736e961392886945f3d5e64361f0N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4084

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\microsofthelp.exe

Filesize
41KB

MD5
34b37459ffbb09cdf84e3d8ce81840d8

SHA1
ec3d017187a2105f6f7eda0c8e13f5a22bfadd37

SHA256
cbd4537d1cc21bd8bc783b309f52a06b8a538107869a2c012bdd9c36c1e1b10a

SHA512
4e1075096ed596d5ad0c71224f95c9764b160238489eebf1055d98dd79bee534fb5caf47228201ecafa5609e6e6280a3e7da30628c6e438c70d377ec938a81bd

Download Submit
memory/1736-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1736-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4084-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads