99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/11/2024, 03:30

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General

Target

99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe
Size

68KB
MD5

aec21fa65c852f862d4056a12ac36beb
SHA1

07709e901be60cdae44858845f37c45ecc7acf7d
SHA256

99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da
SHA512

00fdb5b0f32dd6d128970daca0fbd1e4726ba308bd52f18f0ddc8e762cdf2f4a7bf723ed8294fa9f073fc3cd643538a913777d8d3db6492aaa296eff29e6d24b
SSDEEP

1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAcBHUIFvSHbhqhYhl4:lAo1lOwvlKlXBP6vghzwYu7vih9GueIy

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4864	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.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	99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 4864	2304	99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe	83
PID 2304 wrote to memory of 4864	2304	99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe	83
PID 2304 wrote to memory of 4864	2304	99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe	83

C:\Users\Admin\AppData\Local\Temp\99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe
"C:\Users\Admin\AppData\Local\Temp\99c7b36afa0ae2c2497cd45032bf19550205f16e2316b31826fac46f2ceb53da.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- 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:4864

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
88ca4cb52e6cb30824aac5bd596314dd

SHA1
c03ade45e683ebc009454950f60870fa56e4b051

SHA256
19858aeba39ef5328cad697b6b9a8fe83c03fc05c6d614aa0b8e8b2336ce760e

SHA512
0c7fe7fad5e0a704b628bce7fecc94a5cd36ac31dc2ae76466ba2d84b2de67c2d336b78bcef15d682bc1174f9ea6bfeef3b8c8bd385bb04c4464868d9c7edb03

Download Submit
memory/2304-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2304-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4864-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads