515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8

Analysis

max time kernel
150s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 03:20

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General

Target

515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe
Size

765KB
MD5

0ea3107369a9e7de550e195de5f79800
SHA1

7f2caeecd136439da54036fe1a0d9663a960f674
SHA256

515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8
SHA512

83779d95819983b7201ee0182f473ee3fd030be8385f6eaca764dd08fa4acb236346ad1b97f2a7084bff716c761c59bc26a3700948b302b35950b7f3974581a8
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjFKY:r5sJo6YrFUiyAak11LtjFKY

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
804	svchest000.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1716-55-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x00080000000142c8-58.dat	upx
behavioral1/memory/804-62-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1716-63-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1716-65-0x0000000000400000-0x0000000000597000-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	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe"	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1716	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe
804	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe
File created	\??\c:\Windows\svchest000.exe	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe
File opened for modification	\??\c:\Windows\svchest000.exe	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe
File opened for modification	\??\c:\Windows\BJ.exe	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 804	1716	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe	27
PID 1716 wrote to memory of 804	1716	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe	27
PID 1716 wrote to memory of 804	1716	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe	27
PID 1716 wrote to memory of 804	1716	515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe	27

C:\Users\Admin\AppData\Local\Temp\515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe
"C:\Users\Admin\AppData\Local\Temp\515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1716
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:804

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
765KB

MD5
0ea3107369a9e7de550e195de5f79800

SHA1
7f2caeecd136439da54036fe1a0d9663a960f674

SHA256
515cc77fd2f51cbee04262cf79dffb5d281a9ac286862cb973dc4d1c2d4d4cc8

SHA512
83779d95819983b7201ee0182f473ee3fd030be8385f6eaca764dd08fa4acb236346ad1b97f2a7084bff716c761c59bc26a3700948b302b35950b7f3974581a8

Download Submit
memory/804-62-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1716-54-0x00000000765B1000-0x00000000765B3000-memory.dmp

Filesize
8KB

Download
memory/1716-55-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1716-63-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1716-64-0x0000000002800000-0x0000000002997000-memory.dmp

Filesize
1.6MB

Download
memory/1716-65-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download