2a68a305381c6dae76680353e946378e5e05481a351788085e37925afd1c23ca

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2024, 12:39

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General

Target

8ec5af38d27aa72edba5c893f49c5500N.exe
Size

42KB
MD5

8ec5af38d27aa72edba5c893f49c5500
SHA1

83cdfdc5774d50fbfb04254e698274ecdf3ad122
SHA256

2a68a305381c6dae76680353e946378e5e05481a351788085e37925afd1c23ca
SHA512

a3d957ee257c5be8a91ac8c14a3bec4c304f28e830579d1d70245d6d1096d1e1dfd0ec6fd28d9797a24d2da2facd14f8c3b26159e8798f32d43b51cf527f607d
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNh+:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYe

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4756	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4756	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	8ec5af38d27aa72edba5c893f49c5500N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	8ec5af38d27aa72edba5c893f49c5500N.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	8ec5af38d27aa72edba5c893f49c5500N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 4756	1800	8ec5af38d27aa72edba5c893f49c5500N.exe	83
PID 1800 wrote to memory of 4756	1800	8ec5af38d27aa72edba5c893f49c5500N.exe	83
PID 1800 wrote to memory of 4756	1800	8ec5af38d27aa72edba5c893f49c5500N.exe	83

C:\Users\Admin\AppData\Local\Temp\8ec5af38d27aa72edba5c893f49c5500N.exe
"C:\Users\Admin\AppData\Local\Temp\8ec5af38d27aa72edba5c893f49c5500N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4756

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
43KB

MD5
0b1e18d57c0326d570616d7410d0ee97

SHA1
4e3a6dacc9a4576d3a17014a282851b973e3674f

SHA256
fe390aee0b8ba29a45d093ed3ad68754982bcd0705a45949d5c6628d5b9bae1b

SHA512
f5b34b443c5c7aa735d2d77994649be615b09c871e7a614d0e683d53e4cfed439ea0eea7221ea31824d27dbafd39d9587064e35c5470aeab1e0fc8f1584122d5

Download Submit
memory/1800-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1800-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4756-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads