c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea

Analysis

max time kernel
190s
max time network
107s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 03:19

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General

Target

c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe
Size

760KB
MD5

1d17c1ef6611f97e20a3d05bf24ace7f
SHA1

995b826d86ccd3363b05c6bd2084ec3e69b381b0
SHA256

c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea
SHA512

1541198684b29ecf43b9da10a81e774c713dd8fcd5bc025220ecd708f62d564d678b76dc0fe56aa5dca00ed28b507b11037ce4edf91251d660c19a459c41a3c8
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27Qitjr:r5sJo6YrFUiyAak11Ltjr

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
320	svchest000.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1172-55-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x00090000000134f2-58.dat	upx
behavioral1/memory/320-62-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1172-63-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1172-65-0x0000000000400000-0x0000000000597000-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	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe"	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1172	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe
320	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe
File created	\??\c:\Windows\BJ.exe	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe
File created	\??\c:\Windows\svchest000.exe	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe
File opened for modification	\??\c:\Windows\svchest000.exe	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 320	1172	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe	28
PID 1172 wrote to memory of 320	1172	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe	28
PID 1172 wrote to memory of 320	1172	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe	28
PID 1172 wrote to memory of 320	1172	c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe	28

C:\Users\Admin\AppData\Local\Temp\c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe
"C:\Users\Admin\AppData\Local\Temp\c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1172
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:320

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
760KB

MD5
1d17c1ef6611f97e20a3d05bf24ace7f

SHA1
995b826d86ccd3363b05c6bd2084ec3e69b381b0

SHA256
c44d8ce47e4510524991a72eb40ba81e977ccf470875d1f22aab56a127c754ea

SHA512
1541198684b29ecf43b9da10a81e774c713dd8fcd5bc025220ecd708f62d564d678b76dc0fe56aa5dca00ed28b507b11037ce4edf91251d660c19a459c41a3c8

Download Submit
memory/320-62-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1172-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1172-55-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1172-63-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1172-64-0x0000000002880000-0x0000000002A17000-memory.dmp

Filesize
1.6MB

Download
memory/1172-65-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download