56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77

Analysis

max time kernel
152s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19/09/2022, 03:39

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General

Target

56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe
Size

837KB
MD5

0ef8276580cad54c96957aa93e1c49d0
SHA1

d2e11232a29cedd265202cc5b8a9f3c35ae8ead7
SHA256

56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77
SHA512

09b55ba6071af8fe19fd0b4133ff65b5264bb6083ddf5ef8b55f989111e87c813e2d8f5b54d37ae01e266aee2dca9138e2e4e502ce0006d70b411010045586f6
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27Qitjw:r5sJo6YrFUiyAak11Ltjw

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1248	svchest000.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1836-55-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1836-57-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x000a000000012326-59.dat	upx
behavioral1/memory/1248-63-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1836-65-0x0000000000400000-0x0000000000597000-memory.dmp	upx

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	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe"	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1836	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe
1248	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe
File opened for modification	\??\c:\Windows\BJ.exe	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe
File created	\??\c:\Windows\svchest000.exe	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe
File opened for modification	\??\c:\Windows\svchest000.exe	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 1248	1836	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe	28
PID 1836 wrote to memory of 1248	1836	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe	28
PID 1836 wrote to memory of 1248	1836	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe	28
PID 1836 wrote to memory of 1248	1836	56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe	28

C:\Users\Admin\AppData\Local\Temp\56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe
"C:\Users\Admin\AppData\Local\Temp\56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1836
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:1248

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\svchest000.exe

Filesize
837KB

MD5
0ef8276580cad54c96957aa93e1c49d0

SHA1
d2e11232a29cedd265202cc5b8a9f3c35ae8ead7

SHA256
56d891e14ca6b7d9c4bcfb9e8bf9bd92bf101a385c6930c73453d315511ebf77

SHA512
09b55ba6071af8fe19fd0b4133ff65b5264bb6083ddf5ef8b55f989111e87c813e2d8f5b54d37ae01e266aee2dca9138e2e4e502ce0006d70b411010045586f6

Download Submit
memory/1248-63-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1836-54-0x0000000075C51000-0x0000000075C53000-memory.dmp

Filesize
8KB

Download
memory/1836-55-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1836-57-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1836-64-0x00000000025B0000-0x0000000002747000-memory.dmp

Filesize
1.6MB

Download
memory/1836-65-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1836-66-0x00000000025B0000-0x0000000002747000-memory.dmp

Filesize
1.6MB

Download