5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133

Analysis

max time kernel
120s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 07:11

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General

Target

5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe
Size

65KB
MD5

3286b61443695ab53764430f1f1c0fd0
SHA1

bc80e88da61ad033d15687aa1dc4712d3b707968
SHA256

5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133
SHA512

140c4428faf407129af2a96ee468384a85ac1ffd23817de43d028a2351925b712a408e81a1b0f3b6cef41438174904629a9c8bc65cbdb93a2a4c3c89952fd45c
SSDEEP

1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAcBHUIFvSHbhqhJIhN:lAo1lOwvlKlXBP6vghzwYu7vih9GueIX

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2752	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe
File created	C:\Windows\microsofthelp.exe	5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.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	5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2752	2700	5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe	30
PID 2700 wrote to memory of 2752	2700	5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe	30
PID 2700 wrote to memory of 2752	2700	5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe	30
PID 2700 wrote to memory of 2752	2700	5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe	30

C:\Users\Admin\AppData\Local\Temp\5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe
"C:\Users\Admin\AppData\Local\Temp\5a91970f7a92deaf5b7aa9507b00c3806e6afeaf62b8e2cfd316eb1decec4133N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:2752

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
65KB

MD5
dd7f81db18863de586d918dc1010ef2a

SHA1
bb817f581a2c4f2ac60de12ab0a62e5920d5f142

SHA256
b74665607a6b7983a6d9aec4f020bb177737cb260d9fded24cf9b62dc9d59223

SHA512
a518964056b50d8ef876ebe10c55c24fbfb67ece01e2a566dbfe5411d1698cea5c6ba71d90c2b4f41a7d70d06e6e65fd9cda849ecec3eebb9ca4a03d3a2593dd

Download Submit
memory/2700-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2700-6-0x0000000000220000-0x000000000022F000-memory.dmp

Filesize
60KB

Download
memory/2700-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2752-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads