38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 12:29

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General

Target

38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe
Size

57KB
MD5

1fe01c0aa6d02945e334b2edc47863b0
SHA1

9d6254c49db1f4189ad5194f797c411d777b9757
SHA256

38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703
SHA512

7fa3b6fd29a61feb9de8263ecb4b26ebb606e25c5832568a9018a5abeb97a21081dd3152e5d287f2ae51452c1a68c574d8d40ca94850d15b25cec114854d9168
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIj:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYV5

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1820	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1820	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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.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	38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 1820	1508	38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe	31
PID 1508 wrote to memory of 1820	1508	38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe	31
PID 1508 wrote to memory of 1820	1508	38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe	31
PID 1508 wrote to memory of 1820	1508	38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe	31

C:\Users\Admin\AppData\Local\Temp\38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe
"C:\Users\Admin\AppData\Local\Temp\38103bf98e291a392ac4e4ddb829b2b574230499421db96260a8af0366d3d703N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:1820

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
57KB

MD5
8b717a1480b521781d46a5707818fc58

SHA1
4d6e4621af9ee8c56e8652b26c20914993f94374

SHA256
17c93e70cbca2a65b98d65503234c9683a5685652fe4914f4ee2fe82a7717cbe

SHA512
cc26b2d178789fcaa7e7ee3a9babfca1e41e2cc9e1ed3e2123e066a299996f79ce8d4b9c70f7cf302ca63bd2bb64f66ee6df0740a96aae936b175456685ac049

Download Submit
memory/1508-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1508-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1820-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads