a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 09:35

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General

Target

a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe
Size

63KB
MD5

23672db6b7c96883ecec59cecd5c2820
SHA1

05da3051ba9d23e09fd62c60f0800eadcb786e04
SHA256

a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966
SHA512

1e1472c48f719e0b0150cdbf8f3fe4acdf1533e7f097ce75c6aee6a6ee8d0219b2e464a33e541816a51cfb82ca07ba2333b4cce41343872b2e916d51e3f0cb7d
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbRJhHhLhIKR:NAoglOwvl4ulkP6vghzwYu7vih9GueI+

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1368	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1368	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3608 wrote to memory of 1368	3608	a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe	83
PID 3608 wrote to memory of 1368	3608	a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe	83
PID 3608 wrote to memory of 1368	3608	a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe	83

C:\Users\Admin\AppData\Local\Temp\a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe
"C:\Users\Admin\AppData\Local\Temp\a173cdc27b8a4a0c78eeaa4181f7a661226366d581960584951012af5c6a3966N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3608
- 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:1368

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
63KB

MD5
a05ecd296d7e2c46d61783fba51c9d07

SHA1
f6ec6bc282f2a04a10858d18e9cab780d57e9167

SHA256
c704eac62ff41204012b81d46d3a32fcda98971a4c7dda044bb2981e501aa608

SHA512
23fafcd3edb108afe982e7f82c7a0dd4e340b1bb78c49161f32df5497093a32f390ccf7564dc8865b1aa8da27bd65712ed222939c6b8b3011300802a914b39a4

Download Submit
memory/1368-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3608-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3608-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads