91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6

Analysis

max time kernel
149s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 03:12

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General

Target

91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe
Size

30KB
MD5

2ddcad72039457a48a50a3403731075c
SHA1

b9e4c315f1e22b001565ccfd8c3c0c3a6adf93ce
SHA256

91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6
SHA512

863c878b93c2711015e8a44cc199d58a4ae4f6b8ac665a849b9b5763ce5f113904fd66ad773e31b00565b30a32623dfe36a9c52265f90fec66a307ea1b05337a
SSDEEP

768:VqPJtMA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EwhSahGCoN:VqsA6C1VqaqhtgVRNToV7TtRu8rM0wYD

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

microsofthelp.exe

pid process

4448 microsofthelp.exe
Executes dropped EXE 1 IoCs

Processes:

microsofthelp.exe

pid process

4448 microsofthelp.exe

pid	process
4448	microsofthelp.exe

pid	process
4448	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe

Drops file in Windows directory 1 IoCs

Processes:

91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe

description ioc process

File created C:\Windows\microsofthelp.exe 91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe

description	ioc	process
File created	C:\Windows\microsofthelp.exe	91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe

description	pid	process	target process
PID 2836 wrote to memory of 4448	2836	91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe	microsofthelp.exe
PID 2836 wrote to memory of 4448	2836	91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe	microsofthelp.exe
PID 2836 wrote to memory of 4448	2836	91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe	microsofthelp.exe

C:\Users\Admin\AppData\Local\Temp\91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe
"C:\Users\Admin\AppData\Local\Temp\91f6a90ae0f348aaac2e1f935ab20596acd61b28be228cb4374ef456434996c6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2836

C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
2⤵
- Deletes itself
- Executes dropped EXE
PID:4448

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 --no-appcompat-clear --field-trial-handle=3688,i,14648456027158448592,4956305794400220180,262144 --variations-seed-version --mojo-platform-channel-handle=2700 /prefetch:8
1⤵
PID:5016

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\microsofthelp.exe

Filesize
30KB

MD5
9648b1f84c2fb41c208d48ef17502883

SHA1
747bb1ad69b430b7a4ca4276941f500dc71978a4

SHA256
c5cb0227ca31355a6d0e55713b1bf647ed857cbf6c5668e28d8de02bd54e3984

SHA512
e5ac267f8d04ce1134e66353c237fca4e55ff33ec065b22963a62d9d0974052927706ad0a5d0c1633c15b9dacb8ffc62ff1cb6ecfee178d75f1e695727b19754

Download Submit
memory/2836-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2836-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download