fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 07:32

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General

Target
fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe
Size 34KB
Sample240825-jdavnasfmg
SHA256 fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a
MD5 471437777379b2eaf172db08192ad1bf
SHA1 405886f5d758b955f674da1da1c681bcde298833
SHA512 4292710af32b9b6bfcffbdaa84ac596fe7bef4855ccf8a937f2a03ac784f9aa656b8a6adcc6b722242d30ab625dc3d2c7bf411e0eb15621fdd771169f5cd4f14
SSDEEP 768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAcBHUIFvl:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gv
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3960	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3960	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.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	fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 3960	2224	fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe	84
PID 2224 wrote to memory of 3960	2224	fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe	84
PID 2224 wrote to memory of 3960	2224	fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe	84

C:\Users\Admin\AppData\Local\Temp\fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe
"C:\Users\Admin\AppData\Local\Temp\fd802acea5b928d9f2004a33da9f273b6455a7771acab65b7360d5c1c1ef1b8a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- 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:3960

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

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 35KB
SHA256 17d2ebb655e24b96ca57c5308a00f9fc6db440883b40001552e7c56110d52aae
MD5 11d13738866bd1c5d1b6c90dd7660f93
SHA1 50437a5cc4e0a5410506a9d6f5ea199aac981c55
SHA512 c45bf7c87f293565d10af0453367fe864d28c8ced22cf691bc288414d29d1c92a0e8ae06fb906d60e0f802a393282f91af8d09b4e65766bdc63731ca5737eed9
SSDEEP 768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAcBHUIFv2:e6q10k0EFjed6rqJ+6vghzwYu7vih9GB
MD5 SHA1 SHA512 SSDEEP

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memory/2224-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/2224-6-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3960-7-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads