09fe2f77271533fac4fc8e32d7bc8ca2d6cd7f2bb7b8bda1237bb02a47995ed9

Analysis

max time kernel
0s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 13:36

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General

Target

72c812a6867448ce8141e1d896597638.exe
Size

581KB
MD5

72c812a6867448ce8141e1d896597638
SHA1

f162742056dcc0a83d88ea7182203da1fddea1f0
SHA256

09fe2f77271533fac4fc8e32d7bc8ca2d6cd7f2bb7b8bda1237bb02a47995ed9
SHA512

48d09795d82074a54739f239e75b09a54142619d0dec80819df69b3fa0c20b49e358dfd91702ee0426f789be9e8fe2f3e0f92a947a95d3794b80c261dcfa6490
SSDEEP

12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0UU:ufplNFgxG5eZngb0P

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
516	nbfile0.exe

Modifies Internet Explorer settings 1 TTPs 6 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6C88DAEC-ACAB-11EE-9ECD-CA152A8DAB80} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
516	nbfile0.exe
4684	IEXPLORE.EXE
4684	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 516	4520	72c812a6867448ce8141e1d896597638.exe	18
PID 4520 wrote to memory of 516	4520	72c812a6867448ce8141e1d896597638.exe	18
PID 4520 wrote to memory of 516	4520	72c812a6867448ce8141e1d896597638.exe	18
PID 516 wrote to memory of 4684	516	nbfile0.exe	16
PID 516 wrote to memory of 4684	516	nbfile0.exe	16
PID 4684 wrote to memory of 1200	4684	IEXPLORE.EXE	17
PID 4684 wrote to memory of 1200	4684	IEXPLORE.EXE	17
PID 4684 wrote to memory of 1200	4684	IEXPLORE.EXE	17

C:\Users\Admin\AppData\Local\Temp\72c812a6867448ce8141e1d896597638.exe
"C:\Users\Admin\AppData\Local\Temp\72c812a6867448ce8141e1d896597638.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
  C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:516
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
    3⤵
    PID:3924
- C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  2⤵
  PID:4324

C:\Program Files\Internet Explorer\IEXPLORE.EXE
"C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://down.97199.com/install2/?sl3
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4684 CREDAT:17410 /prefetch:2
  2⤵
  PID:1200

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\1.vbs"
1⤵
PID:764

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"
1⤵
PID:1120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verC2C3.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0SGFK56Z\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/516-5-0x00000000001C0000-0x00000000001C2000-memory.dmp

Filesize
8KB

Download
memory/516-4-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/516-9-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/4520-14-0x0000000000400000-0x0000000000497000-memory.dmp

Filesize
604KB

Download