b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6f

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 13:22

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General

Target

b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe
Size

56KB
MD5

f2aad5c606e36850015cc28003ca3940
SHA1

3dc7c9d95510188a1ea4d16b6f3b36387a6b6010
SHA256

b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6f
SHA512

29568182e2705d33e7d3490dec6a442beee3dbfaa874b6245ff9d81278372cf4c6038444808e7d91b7e3c3564dd214e6582e7f4910a3eb2d8c46b9693dc55281
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIE:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVm

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2744	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.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	b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2744	2668	b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe	31
PID 2668 wrote to memory of 2744	2668	b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe	31
PID 2668 wrote to memory of 2744	2668	b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe	31
PID 2668 wrote to memory of 2744	2668	b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe	31

C:\Users\Admin\AppData\Local\Temp\b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe
"C:\Users\Admin\AppData\Local\Temp\b4c4942b6e91dfc106d929ba06845d01ba19737b44e04527e3fe79b5f05ffb6fN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2744

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
f9f65215d73f99b50018f34ca107609a

SHA1
0c84ed8365ff54080b73e9ba18c4d20909cb6c71

SHA256
4994be401c8ee2d5fb64643cdfea7506e6d0b736d1d473b2c167e3e42f8e066c

SHA512
7496ef767fad00b5123fbdda0dd1567f092ef17ecf086086a5c3413ddb479169d95368d17c39d3a8e2e52d8fcd4cb2792da95b291633b40bf0ee6807684d1548

Download Submit
memory/2668-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2668-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2744-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2744-10-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads