4d7d9f8ed119b091130276f0b99a2a6a427ea66c77845c9fff907e414cd57c53

Analysis

max time kernel
119s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 21:42

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General

Target

fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe
Size

37KB
MD5

fd8c83fbf34b0f39bdfd5c38fc91ae20
SHA1

540af4a5a46b67b5114f92c4f3f100254aa9bead
SHA256

4d7d9f8ed119b091130276f0b99a2a6a427ea66c77845c9fff907e414cd57c53
SHA512

124b5c446c73f7efcdf187d2b6cbb4117fa260d534ea25f247d94525aab0c7cf5fe45bfbe03eb5231a0b35137f6a86a5622a0ecf9ecaa0ab48b8b42a20b98ee5
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Emkcy:e6q10k0EFjed6rqJ+6vghzwYu7vih9GL

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3660	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3660	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"	fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	fd8c83fbf34b0f39bdfd5c38fc91ae20N.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	fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 3660	1636	fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe	84
PID 1636 wrote to memory of 3660	1636	fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe	84
PID 1636 wrote to memory of 3660	1636	fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe	84

C:\Users\Admin\AppData\Local\Temp\fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe
"C:\Users\Admin\AppData\Local\Temp\fd8c83fbf34b0f39bdfd5c38fc91ae20N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1636
- 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:3660

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
37KB

MD5
5d68884aea3debf17fbe95adb1ba9dee

SHA1
6cc5363b79f909789f4d6ae40d99cb435156d8d7

SHA256
0065392ef1525df1d5184a89963718220c83ca115d9a15ea860ec93e57f13497

SHA512
bc1bd7bd88884b0268757f6ce1f57cb8d03b92a8f27a219ace994b72912815c4c4c3810c28efdffe21c56ee2d54ce3a75472690d7c667ff17cde0b4201a6c6e8

Download Submit
memory/1636-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1636-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3660-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads