3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331b

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 01:41

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General

Target

3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe
Size

56KB
MD5

9a8b90593573b92069bc001039943320
SHA1

38bc5abc5a7118fc4685c833ae92f53d82db1c36
SHA256

3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331b
SHA512

b285bf9f5387056a82763588872ee60aea583debb368bb2128f9424d11c683fef9605defe7a993d3d83a3460e00bb914302d7c0055b58e30c0602798bd19c154
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhI7:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYV9

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2496	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2496	1940	3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe	30
PID 1940 wrote to memory of 2496	1940	3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe	30
PID 1940 wrote to memory of 2496	1940	3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe	30
PID 1940 wrote to memory of 2496	1940	3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe	30

C:\Users\Admin\AppData\Local\Temp\3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe
"C:\Users\Admin\AppData\Local\Temp\3664c422cb64198a37608bb6ebf3b2c4a9c06ab6485a15e5143570a648fa331bN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2496

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
56KB

MD5
800604d080222df0c637aeaef17a09ee

SHA1
7dd074fb91b81b6c5722328eae6405f5ab78c9fc

SHA256
b1926e92f7d441a5c22b1015d8568fd77fc07e53752b76de52ff97540fac7c82

SHA512
2ed8d9ba37192718fab84cacdc814ef5fcce8aa9d4bc5d5951570b9aab0f60cd364697e5a167d8bc78734558dc26bae7b99c6cd74890fb338a457e04544eeb65

Download Submit
memory/1940-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1940-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2496-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2496-10-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads