0225f056b186bf3a2a9478a9988ca37234c2c232a3314a0b9b9c1f5bc2bb0c6b

Analysis

max time kernel
120s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b706af2b51850c45e0ba1dc6b7f19970N.exe
Size

40KB
MD5

b706af2b51850c45e0ba1dc6b7f19970
SHA1

f7367e6092bdc6517bfe37d57170690fbd7256c7
SHA256

0225f056b186bf3a2a9478a9988ca37234c2c232a3314a0b9b9c1f5bc2bb0c6b
SHA512

828ec16f2b268ee4c04153b8e9778712e15da1c5263243d3b163f27b25b081d6975f402672e05d1e9194b6053ff64045e5159702ce16371ea0c21750d6605e38
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhQ:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYw

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4408	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4408	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b706af2b51850c45e0ba1dc6b7f19970N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b706af2b51850c45e0ba1dc6b7f19970N.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	b706af2b51850c45e0ba1dc6b7f19970N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3476 wrote to memory of 4408	3476	b706af2b51850c45e0ba1dc6b7f19970N.exe	83
PID 3476 wrote to memory of 4408	3476	b706af2b51850c45e0ba1dc6b7f19970N.exe	83
PID 3476 wrote to memory of 4408	3476	b706af2b51850c45e0ba1dc6b7f19970N.exe	83

C:\Users\Admin\AppData\Local\Temp\b706af2b51850c45e0ba1dc6b7f19970N.exe
"C:\Users\Admin\AppData\Local\Temp\b706af2b51850c45e0ba1dc6b7f19970N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4408

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\microsofthelp.exe

Filesize
40KB

MD5
ff6edabdc414881d598f0f8df7b54593

SHA1
53d047057b4d653f73346878e603b7320f946516

SHA256
f5beb5d5ca27b053cd2fbafd6eef15a156b3d19c9f991d84720c559406424b78

SHA512
49fb6d7f028cf4afebc77793cf5118ba69dc50c0cb7989b62c7b8d942797aea76d51bdff90a9aa26003f7fa7445fef275b709a02b175f413478feac4a93bc511

Download Submit
memory/3476-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3476-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4408-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4408-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads