ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711a

Analysis

max time kernel
120s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 05:55

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General

Target

ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe
Size

38KB
MD5

2de773cb9af818c51eaf90d09c245410
SHA1

b0cabc9e78d0a0b090141be180d5db555424c433
SHA256

ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711a
SHA512

33e48856a4901d7db6e95253956445fa736b6a611be49f5a01a024d53c600a2919c3b10938d4ea2d74992c36dd43c29e08441b381cbb47066a34472c9f14e7ae
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAcBHUIFvu:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gk

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4292	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4292	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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.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	ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 4292	2960	ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe	83
PID 2960 wrote to memory of 4292	2960	ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe	83
PID 2960 wrote to memory of 4292	2960	ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe	83

C:\Users\Admin\AppData\Local\Temp\ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe
"C:\Users\Admin\AppData\Local\Temp\ef3ee4107d490fa6e0dcdc04b9cd0847441c14af596067117b219b68df02711aN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2960
- 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:4292

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
5c86f6e9b2d013d47975a6cd237c2208

SHA1
20c3b854e59282a327081a85dcb69325fcc78e40

SHA256
c0a82fa193df49cc51f8a4ce78cd30580e4ea8bc08dc3aa99a9492bdfaa579f4

SHA512
027066ecae48b3e0a3a538e6d50f6f42405fd07ea4e626b3c254160c5005896a6ff6bff0413d331fb2f3f8b378c4ce1f54e60578b67a619a39cfbe50d1a54e0a

Download Submit
memory/2960-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2960-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4292-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads