638877c431631c46abb8697d2dae2adb0031a4097475f54d2630ceb658799e9f

Analysis

max time kernel
119s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 16:20

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General

Target

75aed9f09a49acb4eb392ea6c06f12f0N.exe
Size

40KB
MD5

75aed9f09a49acb4eb392ea6c06f12f0
SHA1

018b5cb20a0e3e8971fe2657dabf98788639aac8
SHA256

638877c431631c46abb8697d2dae2adb0031a4097475f54d2630ceb658799e9f
SHA512

f409dff8d6f98e9ed0bf5ec84679b43f0fef40d491200639b6b95c481514495d697f69541cbbafcb3c81b7fd112f79fab4eb507d841ef61d22e4d89ac539a7b6
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhM:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYs

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4080	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4080	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"	75aed9f09a49acb4eb392ea6c06f12f0N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	75aed9f09a49acb4eb392ea6c06f12f0N.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	75aed9f09a49acb4eb392ea6c06f12f0N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 676 wrote to memory of 4080	676	75aed9f09a49acb4eb392ea6c06f12f0N.exe	91
PID 676 wrote to memory of 4080	676	75aed9f09a49acb4eb392ea6c06f12f0N.exe	91
PID 676 wrote to memory of 4080	676	75aed9f09a49acb4eb392ea6c06f12f0N.exe	91

C:\Users\Admin\AppData\Local\Temp\75aed9f09a49acb4eb392ea6c06f12f0N.exe
"C:\Users\Admin\AppData\Local\Temp\75aed9f09a49acb4eb392ea6c06f12f0N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:676
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4080

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=4436,i,6510295916244954942,10164894160290787457,262144 --variations-seed-version --mojo-platform-channel-handle=3828 /prefetch:8
1⤵
PID:2184

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
40KB

MD5
97176d5215dc45704960a0bd2eb2bf7e

SHA1
a61605d31feb2ee9e7c7d377ef22978fb4773cdc

SHA256
3ac86a75019f5ebedccca48ccc71c8c4aa83f3cda058b491837777409ebfacbb

SHA512
a538b279279fe312676c2f21bcdc3267460c0b68c9be753ddf6c12a3f23b7879f535c814140a08d58b7b0960f18f85382b8a397ee952d1120b160823567a530b

Download Submit
memory/676-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/676-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4080-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads