66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45ca

Analysis

max time kernel
119s
max time network
119s
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, 08:09

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General

Target

66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe
Size

70KB
MD5

0de8b994f56779937593a61aa3b5d4e0
SHA1

0e9d7e481a0d42c039ea5320c4ef09a6f28c8cee
SHA256

66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45ca
SHA512

44547ca48c9aaaf50e23069c3d61df2e39737097fd4561453240e6da6f703a5ecb7d8ccff45b2dd4f9c6e1a2273ef942933b210530b08a9d6260ced85333e3cc
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johChPhnhHuk:NAoglOwvl4ulkP6vghzwYu7vih9GueIj

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4332	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4332	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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.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	66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 4332	4612	66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe	89
PID 4612 wrote to memory of 4332	4612	66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe	89
PID 4612 wrote to memory of 4332	4612	66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe	89

C:\Users\Admin\AppData\Local\Temp\66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe
"C:\Users\Admin\AppData\Local\Temp\66ba7f6aa71d427a83c4c42cc36553566f243a5b0179f5d8efedc7879dbd45caN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4612
- 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:4332

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4056,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3956 /prefetch:8
1⤵
PID:1972

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
70KB

MD5
e2fd893e5404fb4f6f67cbda9b96558e

SHA1
d8d19cd7cc39407f8a892a3dfca4a0a45f703811

SHA256
f7fcfb154bc92e7f87f98fc368e7255d740bc9d1b400e770b50c1e985ca476ca

SHA512
e616d02c6e5c199b90bd1ff14a49a01a97c142ec6dd170ad831cc8a6b4ccc6ca816bcae3dcb081690f051e1fcea34f542adbab0695eec8c1fd2cf25379b3b02a

Download Submit
memory/4332-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4612-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4612-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads