243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c

General

Target

243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe
Size

6.0MB
MD5

db692724da053d4853cc4ad602da9edc
SHA1

29ee8e69e979f9a5efb8c2ad10c6c5dd0570b54b
SHA256

243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c
SHA512

1ebce4fd3369a0b878d59799bbd5c92247496f8b9873d9f5d7b985a3b592dda7182d8ee2fc259fb6a1ecbfdb9ac5a541fbf6461ae4494ca22bd16a0d0ad66bed
SSDEEP

98304:fbdhDqohDS1F+CRcB27OgUWZHw8VQjr+/bJBAUZLb:fbdhDD23a2sWKjr+TJVX

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3060-0-0x00000000003F0000-0x00000000003FB000-memory.dmp	upx
behavioral1/memory/3060-45-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-43-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-41-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-39-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-37-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-35-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-33-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-31-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-29-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-27-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-25-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-23-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-21-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-19-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-17-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-15-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-13-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-11-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-9-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-7-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-5-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-3-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-2-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-1-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/3060-47-0x00000000003F0000-0x00000000003FB000-memory.dmp	upx

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 24 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{80DC1E11-330F-11EF-BEBB-767D26DA5D32} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2364	iexplore.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe
3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe
3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe
2364	iexplore.exe
2364	iexplore.exe
2468	IEXPLORE.EXE
2468	IEXPLORE.EXE
2468	IEXPLORE.EXE
2468	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2364	3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe	31
PID 3060 wrote to memory of 2364	3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe	31
PID 3060 wrote to memory of 2364	3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe	31
PID 3060 wrote to memory of 2364	3060	243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe	31
PID 2364 wrote to memory of 2468	2364	iexplore.exe	32
PID 2364 wrote to memory of 2468	2364	iexplore.exe	32
PID 2364 wrote to memory of 2468	2364	iexplore.exe	32
PID 2364 wrote to memory of 2468	2364	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe
"C:\Users\Admin\AppData\Local\Temp\243630e4469d7601cae94bd9dc09488313845a009d679e135f0d43bd703cc89c.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" https://changkongbao.lanzouq.com/ikW9T1cfeg5e
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2364 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\·½°¸.ini

Filesize
8KB

MD5
16ef8177433976c14d23f839a8c1152a

SHA1
2b653ca841498be9292cbbc8b5119504e225f56d

SHA256
2a30dc50f2e6e73b059d7419b34924114bffcfa8d99f7703bfbdd4f9e5da8855

SHA512
9cccf0eb97b898988e5da63584e195528dd3a0f34d0608844a33c6ac5928d83c8159151a7a15d5382a10114b819cb72d8c5840d254d9ac1023ad6ac22ac4833e

Download Submit
C:\Users\Admin\AppData\Local\Temp\¿ì½Ý·¢ÑÔ·½°¸.txt

Filesize
189B

MD5
322f59ce015ff2f1f00ecbe4fdfce380

SHA1
eb4756a5bb023f6d1feacdbeac6e94013e15d5b0

SHA256
c96ef901d8f23cb7626ef980c4cf5bece7aafeef9b2b8b28829d3a11a51562c1

SHA512
2610ce1c0a55da67faa9ddaca26529a87bf5ebc6706621682d54024fa887ca9cd54cdc5b854f8b79ea99b02a5277d6931f633fa876107d9ec1bf503bee23a02c

Download Submit
C:\Users\Admin\AppData\Local\Temp\ÉèÖÃ.ini

Filesize
246B

MD5
b06ddcfdb64cc28ca0a0ef609de5f05f

SHA1
bd95d141935795e249d2ab00824839fd42c8f505

SHA256
da0a5d79dc6a120811b556885b704f9fd158b1f19dd5a9c595719feb56065f00

SHA512
a1dd3cc527ce6a6c4b0ea2c369d4370f6f1bf332c9255e1a8eebfd5986c133dacc2e6c6a55071e5bcf4724f37ff2920f2e17567ca32571e664b458e526be72b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ÉèÖÃ.ini

Filesize
260B

MD5
924bf7a4ce305dad87743ba3c5773aa9

SHA1
12d0fddb472394b23e5176ab4ede38974e723b81

SHA256
01faf5e88442653bf38adc145d517f44d3495398e0aa666c7486b7030c126cbd

SHA512
2380c957717d3bc97ae2de96aba9cd3b50a1774eb96dc47840add1b12ee13485ee6cc6c4d30953b8f42d32ae3b02657966229fcbe58a60843df0cbd6170eb44e

Download Submit
\Users\Admin\AppData\Local\Temp\ExuiKrnln_Win32_20230421.lib

Filesize
1.5MB

MD5
ef48d7cc52338513cc0ce843c5e3916b

SHA1
20965d86b7b358edf8b5d819302fa7e0e6159c18

SHA256
835bfef980ad0cedf10d8ade0cf5671d9f56062f2b22d0a0547b07772ceb25a8

SHA512
fd4602bd487eaad5febb5b3e9d8fe75f4190d1e44e538e7ae2d2129087f35b72b254c85d7335a81854aa2bdb4f0f2fa22e02a892ee23ac57b78cdd03a79259b9

Download Submit
memory/3060-13-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-7-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-33-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-31-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-29-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-27-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-25-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-23-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-21-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-19-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-17-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-15-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-0-0x00000000003F0000-0x00000000003FB000-memory.dmp

Filesize
44KB

Download
memory/3060-11-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-9-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-35-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-5-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-3-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-2-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-1-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-46-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

Filesize
4KB

Download
memory/3060-47-0x00000000003F0000-0x00000000003FB000-memory.dmp

Filesize
44KB

Download
memory/3060-50-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

Filesize
4KB

Download
memory/3060-53-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/3060-52-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/3060-37-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-39-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-41-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-43-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/3060-44-0x0000000000400000-0x0000000000A6D000-memory.dmp

Filesize
6.4MB

Download
memory/3060-45-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads