a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edc

Analysis

max time kernel
120s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2024 11:06

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General

Target

a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe
Size

48KB
MD5

526040029d6e11d3c31d4355e37b4430
SHA1

3f4da20641f75a018be3bb07759139781f8c11b0
SHA256

a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edc
SHA512

aa6f6572b2a2136b5760f6f11cf532758fd1d4e3843bff0adfe3b24fffc603e67dddf64d7ec7d48eebcbd2d8578cfcc0bdf5168bee5955ce47a4c7054e7ea38d
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIx:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVb

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3944	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3944	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.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	a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 3944	3452	a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe	82
PID 3452 wrote to memory of 3944	3452	a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe	82
PID 3452 wrote to memory of 3944	3452	a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe	82

C:\Users\Admin\AppData\Local\Temp\a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe
"C:\Users\Admin\AppData\Local\Temp\a8bd58bd0175b94de3bcc95092e7a299f078633201a3f2520efda33d86249edcN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3944

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
49KB

MD5
ec2cc10763381434f82e1eb10bd56d63

SHA1
e5e5feb918befeb444270ceccf723a5b55bf7164

SHA256
0e09d55c62169897bcfa9257e76589534b074270aa7bb2624d9c8aee1185aa2b

SHA512
e22584d8f313538f7d428cf42fc86065408f12d2d71c487afe425c03099e72927a3f9f32ab09399d93dbd4129852d450730029a838e4fcb9eb4bf04bb1fbe3d5

Download Submit
memory/3452-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3452-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3944-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads