921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004a

Analysis

max time kernel
119s
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
25/09/2024, 15:32

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General

Target

921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe
Size

47KB
MD5

3d90f274eb3a9ee143a62dbfe8eb0500
SHA1

df59442d75f42e00147ba5deab8588106c9e32f2
SHA256

921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004a
SHA512

ed553c941e49a6a1000942585d40d171b75b276018ffae88621b48dbac01b8e6b2957b61664d70371aed5b9a62c83d9df7fe5f28c28547a14d3930ad4ccec666
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNh6:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYa

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1180	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1180	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"	921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.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	921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 1180	3204	921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe	89
PID 3204 wrote to memory of 1180	3204	921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe	89
PID 3204 wrote to memory of 1180	3204	921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe	89

C:\Users\Admin\AppData\Local\Temp\921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe
"C:\Users\Admin\AppData\Local\Temp\921a3f60e5b01ab71c2aef90ca5f8dfee2050ef7f040663bcdd2ea73f039004aN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1180

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=4336,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=3776 /prefetch:8
1⤵
PID:4712

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
48KB

MD5
4e964872a117fd7578a4b81e4a2b385b

SHA1
7a2e2bd9dedcc4bfbdb3cf6d4516bb7543b758a2

SHA256
72ce891d8b561e4c16ef1b100ed009118513c4df37c1a542ce84381c6312bfaf

SHA512
21f6e02c422f28f863824d4fc886284e938ae6b29d0ad2a222fca68ebffb861057c95fedffba6db2a0f497bee0d10aaae311bfd3439cfa63b4ad204cf589318d

Download Submit
memory/1180-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1180-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3204-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3204-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads