a99a5cd6b702aa387242da8fd67140962927b5c04b30dba4c23fa6b7a2183c32

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 12:14

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General

Target

694aa65fab7fe79135322680c6b6c350N.exe
Size

76KB
MD5

694aa65fab7fe79135322680c6b6c350
SHA1

1cc1704eb7af89a41a5f1135e0fa4c57d281ee97
SHA256

a99a5cd6b702aa387242da8fd67140962927b5c04b30dba4c23fa6b7a2183c32
SHA512

5039c4c457d0225d625b9f1aa842e057b07ab2ba7c5e86c8c6bc80f519c07900459ced755854e209fdb2f8e87dd7ec62ee9dd3c033dd09e824f924a23ba9ac31
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvPHG3GvUhCHi1X5GoOvmHOo:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAS

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4572	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4572	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"	694aa65fab7fe79135322680c6b6c350N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	694aa65fab7fe79135322680c6b6c350N.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	694aa65fab7fe79135322680c6b6c350N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 4572	2328	694aa65fab7fe79135322680c6b6c350N.exe	91
PID 2328 wrote to memory of 4572	2328	694aa65fab7fe79135322680c6b6c350N.exe	91
PID 2328 wrote to memory of 4572	2328	694aa65fab7fe79135322680c6b6c350N.exe	91

C:\Users\Admin\AppData\Local\Temp\694aa65fab7fe79135322680c6b6c350N.exe
"C:\Users\Admin\AppData\Local\Temp\694aa65fab7fe79135322680c6b6c350N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- 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:4572

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=4128,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4076 /prefetch:8
1⤵
PID:2284

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
76KB

MD5
c1a709370d56f75732b24a690a7405ed

SHA1
896a2782ea5c2cc5436116cc8a7d9158bc5d8f3f

SHA256
90bdd13a705c8d59b09066ca2a704fa32826e7b02d6934972a3c086e8bdf645c

SHA512
9a76848f85720a43dd9416539f8efcd9d35271c251b414aabb51f4250f9491307188ae62805d5d821dbf80c2ae6db2ae8eb99912cf6d0c8c0ae0190b75a090d2

Download Submit
memory/2328-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2328-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4572-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads