b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 21:23

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General

Target

b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe
Size

65KB
MD5

044dd7bd21521241cbc26fc32a9b91e0
SHA1

a2579760ca4bd8d0a43178d98737f6834fa1f2e3
SHA256

b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00
SHA512

cfdc214ba647d94138c4b8ef2dd8e9edb5c9062a0e61623c4f34de331329cc64f66524d35cee3db72c193ca00ba9ecaba6f0a3d0917ca53b80c97df6db6481b5
SSDEEP

1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+uZd7ZY8U:lAo1lOwvlKlXBP6vghzwYu7vih9GueI7

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3052	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3052	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 3052	2488	b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe	30
PID 2488 wrote to memory of 3052	2488	b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe	30
PID 2488 wrote to memory of 3052	2488	b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe	30
PID 2488 wrote to memory of 3052	2488	b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe	30

C:\Users\Admin\AppData\Local\Temp\b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe
"C:\Users\Admin\AppData\Local\Temp\b722f1b677617cac30970d52a217612fc286ce0689b75b19e4437902de0b2c00N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:3052

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
65KB

MD5
628ebb9b5d7916721c2258e8cc45d326

SHA1
b96d4bf05c53fbd8113bb65e90caff386d9fab56

SHA256
fc381c67d939c77a95036151836ca3710d48d2bde080982b9248dfdb8bfe54e1

SHA512
29fa333523c8da0df78552c4a43487d0ce958a633f773299d60695bf19a4931655ec951d4e54c3b01fd8d9bc1fb02667a5d4c0c6058d72f30ab0b41791c6e31b

Download Submit
memory/2488-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2488-3-0x00000000001B0000-0x00000000001BF000-memory.dmp

Filesize
60KB

Download
memory/2488-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3052-9-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3052-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads