f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/11/2024, 11:20

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General

Target

f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe
Size

68KB
MD5

99a605b44ffcebfb700337e783940120
SHA1

0afd9e5af5574d21f8af7411b315a2fe8fcca765
SHA256

f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412
SHA512

1c02420bc7987975eb43890651ff79b4282c69ad96579f8956e0e8f60d307c14ff2c6af49bca8d90f48533389f878ace4737c85a097f94f791a128f598202b68
SSDEEP

1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbIKjhEhzLt:lAo1lOwvlKlXBP6vghzwYu7vih9GueIn

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2376	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2376	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 2376	1636	f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe	30
PID 1636 wrote to memory of 2376	1636	f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe	30
PID 1636 wrote to memory of 2376	1636	f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe	30
PID 1636 wrote to memory of 2376	1636	f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe	30

C:\Users\Admin\AppData\Local\Temp\f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.exe
"C:\Users\Admin\AppData\Local\Temp\f4351c990fb8533c4e6c694c5225fc90c8e1e258c8225a3fc322d30e933e8412N.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
  PID:2376

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
10d7cc3893c7756d3074e3f941f664c3

SHA1
4226e2914a36fc310cd4a2ed51c4933a3afba155

SHA256
42c226ea7511621177ff219e3c1c71b5f558fe92a05dd79d5f649f095bbbe735

SHA512
7da5954d9b6f0738a7e7b5190dd9499c2f4627e7784263003dde4ecc80062e138263dbf601e439c692c75832844149064d0a2b279e4daefd5974f81cb9ffd08f

Download Submit
memory/1636-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1636-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2376-9-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads