8df3ad6105b1ef3442338ffda20e6d2bda03ace27d4cf54a94e4c79b7f6d5229

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 10:14

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General

Target

af31c392c27226e1420a62b7adc4f380N.exe
Size

47KB
MD5

af31c392c27226e1420a62b7adc4f380
SHA1

3ed9eb5d86348a3e186b7c905b20f93ae21d8f27
SHA256

8df3ad6105b1ef3442338ffda20e6d2bda03ace27d4cf54a94e4c79b7f6d5229
SHA512

3b2cf9f56e8f66950ca5ecd1310a65c8ee6a8f6b00457d6eb73580759075ad3795df7dbf850786cbdb45a393098af28b4cf88953efb1297276c4e1a2e9a45b2e
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhN:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYt

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2164	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2164	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"	af31c392c27226e1420a62b7adc4f380N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	af31c392c27226e1420a62b7adc4f380N.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	af31c392c27226e1420a62b7adc4f380N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 2164	432	af31c392c27226e1420a62b7adc4f380N.exe	83
PID 432 wrote to memory of 2164	432	af31c392c27226e1420a62b7adc4f380N.exe	83
PID 432 wrote to memory of 2164	432	af31c392c27226e1420a62b7adc4f380N.exe	83

C:\Users\Admin\AppData\Local\Temp\af31c392c27226e1420a62b7adc4f380N.exe
"C:\Users\Admin\AppData\Local\Temp\af31c392c27226e1420a62b7adc4f380N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:432
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2164

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
48KB

MD5
85e9267c37e25b602a3551b9c36668b2

SHA1
6a02812a43f23de22ca416e0133ef85756d79d65

SHA256
10da688d6bb7e25e59b73ee2883267a3aeabf12f776f8c6d88d998548294529c

SHA512
95ecb456051a88607c785e5f9b25bc4dd4da349ff895749125a9f387a4f3444bcfe8d6f67836da797e1b77613176d193c7ecd6ea074a3f0a749e1b323c063276

Download Submit
memory/432-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/432-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2164-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2164-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads