ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839df

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 08:02

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General

Target

ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe
Size

37KB
MD5

b79114db9ec3364db61e25872277df60
SHA1

d7ec83ae40c6da6b722b412cb559b1f26ebe4ecb
SHA256

ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839df
SHA512

d92fec9beacc8a3741c94d5f09573fe9ee8a2cc1e7320d09fa2ae512cd4a4d53363b14f55718d7e1331416ec60520f53b1891520ad5637713ea201a023278c34
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhS:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYy

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
816	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
816	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.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	ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 816	2244	ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe	30
PID 2244 wrote to memory of 816	2244	ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe	30
PID 2244 wrote to memory of 816	2244	ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe	30
PID 2244 wrote to memory of 816	2244	ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe	30

C:\Users\Admin\AppData\Local\Temp\ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe
"C:\Users\Admin\AppData\Local\Temp\ac9037267fb4107d33441b741e1a858c8786b48dd8997e3f62a11b2bb32839dfN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:816

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
37KB

MD5
46385094d8255958a0fb0760e7f1ffee

SHA1
c4dae1cecb1d7ecf84d26699219d1a9bb1018e07

SHA256
b2adbf03a2ad0fb852d89922578388245b55dc9c6cdd3e5b60f06e5d11a4e20a

SHA512
c82df6308b655682fa9428566861cd8652a571ebab64358fa36485623eda6e869d75f0cc0d09fbcbfaa7095b4b9ed7881ec534a6f99f5b555b596431889e6047

Download Submit
memory/816-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2244-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2244-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads