66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bf

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
04/10/2024, 00:47

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General

Target

66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe
Size

64KB
MD5

42c800d469acc0e754e6a74d18f826c0
SHA1

7daa94f1892068373f456cdcde17164cc17ea975
SHA256

66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bf
SHA512

c8255b5544c182ece395f5519118817664b741819450db1cddf5118c5aa3ff5e379ed44c05066dce08b6d3e0dc0b6fce189492a2c21b05821b9329baebb734c1
SSDEEP

1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbIKv8H8hvb:lAo1lOwvlKlXBP6vghzwYu7vih9GueI6

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4404	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4404	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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 4404	3352	66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe	82
PID 3352 wrote to memory of 4404	3352	66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe	82
PID 3352 wrote to memory of 4404	3352	66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe	82

C:\Users\Admin\AppData\Local\Temp\66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe
"C:\Users\Admin\AppData\Local\Temp\66297c92ce06a9b1e207c667662e23942b6250b9551f1c04ea38a4e68a72d5bfN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4404

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
64KB

MD5
5ef2bb9ddd53ca7f9c1f9d0c486bb511

SHA1
bf1b8eeab770cb6418b7340e679bb53612e79b91

SHA256
2f26bcf8bddfdbd90a9b69010924aec3eda13467dca91b444cdc901a5c9431c7

SHA512
79edc04698378137510cf03287597f0b52a5b528d4df4bdddf27d64867735598275bff423758db68624bb1ce7fa953500f60cee52ba85de310b1430475162953

Download Submit
memory/3352-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3352-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4404-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads