b9e21cf406067cab25e3f3ffa75d36f64990ed4ec9cee093caa862d92ac74d31

Analysis

max time kernel
128s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 07:28

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General

Target

12255519906f8e866bec93da7a1a3794.exe
Size

58KB
MD5

12255519906f8e866bec93da7a1a3794
SHA1

d539c3b58dcef517cf7f4175431716e18723596a
SHA256

b9e21cf406067cab25e3f3ffa75d36f64990ed4ec9cee093caa862d92ac74d31
SHA512

ec7bb0845fd15d26cf93742f27dcb967c6b679c1608875120eda8b809566db8dd70204b494e5fe7fb9d6f33f3480990ddd00996b7b7fe88d69e8179778313d2a
SSDEEP

768:1zxzTK0TzGEabuRixyRVMkLOZM1KRgcxlPnJzAN7W1+ZhVSpHGStXxUe+WL8on:1zTL/RiofLOO10dHnZ8WAZhwpHxrsLQ

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2204	iexplore.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\mssysint = "iexplore.exe"	12255519906f8e866bec93da7a1a3794.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\psinthk.dll	12255519906f8e866bec93da7a1a3794.exe
File created	C:\Windows\SysWOW64\iexplore.exe	iexplore.exe
File created	C:\Windows\SysWOW64\iexplore.exe	12255519906f8e866bec93da7a1a3794.exe
File opened for modification	C:\Windows\SysWOW64\iexplore.exe	12255519906f8e866bec93da7a1a3794.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4060	12255519906f8e866bec93da7a1a3794.exe
4060	12255519906f8e866bec93da7a1a3794.exe
2204	iexplore.exe
2204	iexplore.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4060 wrote to memory of 2204	4060	12255519906f8e866bec93da7a1a3794.exe	52
PID 4060 wrote to memory of 2204	4060	12255519906f8e866bec93da7a1a3794.exe	52
PID 4060 wrote to memory of 2204	4060	12255519906f8e866bec93da7a1a3794.exe	52

C:\Users\Admin\AppData\Local\Temp\12255519906f8e866bec93da7a1a3794.exe
"C:\Users\Admin\AppData\Local\Temp\12255519906f8e866bec93da7a1a3794.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Windows\SysWOW64\iexplore.exe
  C:\Windows\system32\iexplore.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  PID:2204

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\iexplore.exe

Filesize
58KB

MD5
12255519906f8e866bec93da7a1a3794

SHA1
d539c3b58dcef517cf7f4175431716e18723596a

SHA256
b9e21cf406067cab25e3f3ffa75d36f64990ed4ec9cee093caa862d92ac74d31

SHA512
ec7bb0845fd15d26cf93742f27dcb967c6b679c1608875120eda8b809566db8dd70204b494e5fe7fb9d6f33f3480990ddd00996b7b7fe88d69e8179778313d2a

Download Submit
memory/2204-7-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2204-9-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4060-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4060-8-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads