b9e21cf406067cab25e3f3ffa75d36f64990ed4ec9cee093caa862d92ac74d31

Analysis

max time kernel
122s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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
2776	iexplore.exe

Loads dropped DLL 2 IoCs

pid	Process
2360	12255519906f8e866bec93da7a1a3794.exe
2360	12255519906f8e866bec93da7a1a3794.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\iexplore.exe	12255519906f8e866bec93da7a1a3794.exe
File opened for modification	C:\Windows\SysWOW64\iexplore.exe	12255519906f8e866bec93da7a1a3794.exe
File created	C:\Windows\SysWOW64\psinthk.dll	12255519906f8e866bec93da7a1a3794.exe
File created	C:\Windows\SysWOW64\iexplore.exe	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2360	12255519906f8e866bec93da7a1a3794.exe
2360	12255519906f8e866bec93da7a1a3794.exe
2776	iexplore.exe
2776	iexplore.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2776	2360	12255519906f8e866bec93da7a1a3794.exe	23
PID 2360 wrote to memory of 2776	2360	12255519906f8e866bec93da7a1a3794.exe	23
PID 2360 wrote to memory of 2776	2360	12255519906f8e866bec93da7a1a3794.exe	23
PID 2360 wrote to memory of 2776	2360	12255519906f8e866bec93da7a1a3794.exe	23

C:\Users\Admin\AppData\Local\Temp\12255519906f8e866bec93da7a1a3794.exe
"C:\Users\Admin\AppData\Local\Temp\12255519906f8e866bec93da7a1a3794.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\iexplore.exe
  C:\Windows\system32\iexplore.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  PID:2776

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\iexplore.exe

Filesize
11KB

MD5
9e40f2eb649a5bcdd1e9e4ff284c2fd0

SHA1
6a760ef7468dbdc1b14e56c4fb56307b9c42d619

SHA256
8ec3b406ef6d8940dea01829ac4a05384102fb7393d3101dade52a0474cc6b6f

SHA512
7b7477a60846a5e31a471c06a36dc0988e2a488ab3e0e7230a3ce738b4ce4037f276fe5b9fe42f2c29afc65507696407c6b04e203397a71b6ec238c1f761ca7a

Download Submit
C:\Windows\SysWOW64\iexplore.exe

Filesize
56KB

MD5
ac892012dbb7e9a7c4085364696c7e85

SHA1
15eac858590496109ce654293abd1455f2df8077

SHA256
4aaa475fc37c82abca8f65ebdfddd9cc96bf69348eb279ee9241003e4bf41eb9

SHA512
cd285a201c636c63eed3e9b57ab246768656590ce5354a35c2375bd5e62235ca1ee8b323467b715254eb3ff86ba76a8336cb416ef5a075021769852a8a505c90

Download Submit
\Windows\SysWOW64\iexplore.exe

Filesize
58KB

MD5
12255519906f8e866bec93da7a1a3794

SHA1
d539c3b58dcef517cf7f4175431716e18723596a

SHA256
b9e21cf406067cab25e3f3ffa75d36f64990ed4ec9cee093caa862d92ac74d31

SHA512
ec7bb0845fd15d26cf93742f27dcb967c6b679c1608875120eda8b809566db8dd70204b494e5fe7fb9d6f33f3480990ddd00996b7b7fe88d69e8179778313d2a

Download Submit
memory/2360-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2360-12-0x0000000000340000-0x000000000036B000-memory.dmp

Filesize
172KB

Download
memory/2360-5-0x0000000000340000-0x000000000036B000-memory.dmp

Filesize
172KB

Download
memory/2360-15-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2776-14-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2776-16-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads