2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3

Analysis

max time kernel
151s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19/10/2022, 16:26

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General

Target

2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe
Size

893KB
MD5

a0eb1848930b8b1ffa5500008e4d1f40
SHA1

0ff5bef259e27374ec3718df187faed14400f0e5
SHA256

2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3
SHA512

0298a1f79e980ad43ca5b729f50b4f87550c84073054c34f17548a49f2017417d9e977a1807d908da59e12e0a4179bccd99391fe45d8470f0a90b3e2f022c1f9
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27Qitjl:r5sJo6YrFUiyAak11Ltjl

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1876	svchest000.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1644-55-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x000a000000012311-58.dat	upx
behavioral1/memory/1876-62-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1644-63-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1644-65-0x0000000000400000-0x0000000000597000-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	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe"	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1644	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe
1876	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe
File opened for modification	\??\c:\Windows\BJ.exe	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe
File created	\??\c:\Windows\svchest000.exe	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe
File opened for modification	\??\c:\Windows\svchest000.exe	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1876	1644	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe	28
PID 1644 wrote to memory of 1876	1644	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe	28
PID 1644 wrote to memory of 1876	1644	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe	28
PID 1644 wrote to memory of 1876	1644	2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe	28

C:\Users\Admin\AppData\Local\Temp\2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe
"C:\Users\Admin\AppData\Local\Temp\2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1644
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:1876

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
893KB

MD5
a0eb1848930b8b1ffa5500008e4d1f40

SHA1
0ff5bef259e27374ec3718df187faed14400f0e5

SHA256
2f18a882c5d03909f592b2b97493885c92c35b7d519e23c68140e6389c445dd3

SHA512
0298a1f79e980ad43ca5b729f50b4f87550c84073054c34f17548a49f2017417d9e977a1807d908da59e12e0a4179bccd99391fe45d8470f0a90b3e2f022c1f9

Download Submit
memory/1644-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/1644-55-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1644-63-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1644-64-0x00000000028A0000-0x0000000002A37000-memory.dmp

Filesize
1.6MB

Download
memory/1644-65-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1876-62-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download