57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd

Analysis

max time kernel
165s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2022, 05:25

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General

Target

57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe
Size

135KB
MD5

495beb15b385ae30b564d216b55aa6e6
SHA1

6f4269051be077814e585cc77c0c885aef9dfa0c
SHA256

57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd
SHA512

e8b4e9050693351d4372ebc199fca2054c3b5df8aeed6644e9b1092885f4ef0f880deb3eb11e7942d905be00be3a00fde6d9c5865677bd253d488e9a9a5187ef
SSDEEP

3072:CRm+Ab5F7HElM4gExgD59pc82S/M8wpplZc3KetwZu:kml5F7klM4/058IMjppY3Ketwg

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3204	kernels32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	kernels32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service System = "\"c:\\windows\\kernels32.exe\""	kernels32.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	\??\c:\windows\kernels32.exe	57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe
File opened for modification	\??\c:\windows\kernels32.exe	57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe
File created	C:\Windows\ieupdate.dat	kernels32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4244	57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe
3204	kernels32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4244 wrote to memory of 3204	4244	57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe	83
PID 4244 wrote to memory of 3204	4244	57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe	83
PID 4244 wrote to memory of 3204	4244	57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe	83

C:\Users\Admin\AppData\Local\Temp\57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe
"C:\Users\Admin\AppData\Local\Temp\57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4244
- \??\c:\windows\kernels32.exe
  c:\windows\kernels32.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:3204

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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\kernels32.exe

Filesize
135KB

MD5
495beb15b385ae30b564d216b55aa6e6

SHA1
6f4269051be077814e585cc77c0c885aef9dfa0c

SHA256
57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd

SHA512
e8b4e9050693351d4372ebc199fca2054c3b5df8aeed6644e9b1092885f4ef0f880deb3eb11e7942d905be00be3a00fde6d9c5865677bd253d488e9a9a5187ef

Download Submit
\??\c:\windows\kernels32.exe

Filesize
135KB

MD5
495beb15b385ae30b564d216b55aa6e6

SHA1
6f4269051be077814e585cc77c0c885aef9dfa0c

SHA256
57d8d62e474c86e853f7de0ef2c662256b2bc687cf9e7a14640b22224194eebd

SHA512
e8b4e9050693351d4372ebc199fca2054c3b5df8aeed6644e9b1092885f4ef0f880deb3eb11e7942d905be00be3a00fde6d9c5865677bd253d488e9a9a5187ef

Download Submit
memory/3204-140-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3204-142-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4244-133-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4244-141-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download