b99b66cce9e0b15d6bf9c689099244035745b7fe2ad44e6c0b00a6bbbc9c95d9

Analysis

max time kernel
120s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2024, 09:47

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General

Target

89c3b0b5453f7b6cc1cb246d0288d660N.exe
Size

42KB
MD5

89c3b0b5453f7b6cc1cb246d0288d660
SHA1

5c2d1797e4c42ffef53ac3e15203fee851c5054d
SHA256

b99b66cce9e0b15d6bf9c689099244035745b7fe2ad44e6c0b00a6bbbc9c95d9
SHA512

6849f0915852f39fe0e653e28f5a59f45d26ce577c9bd098097cfb167b1dd3913e46e37118c8d2750cca62c16ef72fd8c9850ef6885623d54216430c84b4fa64
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhh:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYB

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1584	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1584	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-1-5-21-113082768-653872390-2867000172-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	89c3b0b5453f7b6cc1cb246d0288d660N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	89c3b0b5453f7b6cc1cb246d0288d660N.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	89c3b0b5453f7b6cc1cb246d0288d660N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 1584	2156	89c3b0b5453f7b6cc1cb246d0288d660N.exe	83
PID 2156 wrote to memory of 1584	2156	89c3b0b5453f7b6cc1cb246d0288d660N.exe	83
PID 2156 wrote to memory of 1584	2156	89c3b0b5453f7b6cc1cb246d0288d660N.exe	83

C:\Users\Admin\AppData\Local\Temp\89c3b0b5453f7b6cc1cb246d0288d660N.exe
"C:\Users\Admin\AppData\Local\Temp\89c3b0b5453f7b6cc1cb246d0288d660N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1584

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
7113a244d44c54c9a50ddeb5610ab498

SHA1
1292196e8b2988d988f769a133d15eabbdcf81f8

SHA256
cf4814de7adf580f3422a929322011b9953565362c2dc44d6b85f5b1e87b473a

SHA512
d51f541ffd3453bb27c6af680534081a1ae36723f9ea7d782bf2eb324dd86ba0d3618f72457ac7681158ed655da418800c4b7a8e6895d0ab818c77c379b1cf47

Download Submit
memory/2156-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2156-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads