42bcc169e3b18588642c171ecee6a249cb113a3391a33e9e3ce5a1ac67218802

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 17:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8067c6a11b500d18debbb0ea853d293b.exe
Size

40KB
MD5

8067c6a11b500d18debbb0ea853d293b
SHA1

db61531d68f5a6e12e73aae723239fb32d884332
SHA256

42bcc169e3b18588642c171ecee6a249cb113a3391a33e9e3ce5a1ac67218802
SHA512

137b68381bff9d73d6229f6064a6d16534c5f31ee137d88fa163cc6c30ca37f26dedd104ef9d06924ec5c5b97c785094787ce0eba0bd862dbf4fb47886c4644d
SSDEEP

768:OdAQqKkhTWqLDNh693Dyl+SLwNzp7+kvDLRiRXaA:OqAsdO6EpJ2KA

Score

7^/10

bootkit persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4500	winlogom.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4988-0-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/files/0x0007000000023213-6.dat	upx
behavioral2/memory/4500-8-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4988-64-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4500-92-0x0000000000400000-0x000000000041C000-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	8067c6a11b500d18debbb0ea853d293b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\winlogom.exe	8067c6a11b500d18debbb0ea853d293b.exe
File opened for modification	C:\Windows\winlogom.exe	8067c6a11b500d18debbb0ea853d293b.exe

Modifies Internet Explorer settings 1 TTPs 37 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31085270"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31085270"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2746356242"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2758386397"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "413313422"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2746512332"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000c4e92002c4a416439bca1d31c27b840500000000020000000000106600000001000020000000728985b7d8e35e2c919ce81afc789e4c0e72d124ce51cce9cf8c5f7453faf2a2000000000e8000000002000020000000f79aed476ef390b0f50fa7c464b0a2de0ce4d7d7c88ed62b8bcb0156c99cb38d2000000075b60bbd2bf4790597008966dc611f0932a53577e8d9dd879c71c925bf2f3561400000004348f121e509ce8cb0a3aec2975ccd171f2801ca0542c8880985554ea8d4b0e23a9b36dbe02d02d1ffa81c43cd7185c785be0ea9af44e277c4997b0974b2ff74	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a04772a5d652da01	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CF272253-BEC9-11EE-BB4F-7E4216712C33} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000c4e92002c4a416439bca1d31c27b840500000000020000000000106600000001000020000000e0f04bbd02b7575e3a785f148bbcf0296da2dad6a4f1a699e81a6ebd8177bbdb000000000e80000000020000200000008328174681b38f3f164c7e344f68241a9a9926826a17bf1e0c645e2b64aee05a200000005ffbe62b81836c83011f3ff8d6589e57f3b267ee9f5d8790e123f414adc2e3d24000000023a6dc0edf882891962e9fc9d4d56dd5152de7854000c0f727a0f705f4145ef25eefe08913c4c6568cdd621c700c1cd73f255ce0351e8d5eabfaa408e10c9f4f	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d0525aa5d652da01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31085270"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4988	8067c6a11b500d18debbb0ea853d293b.exe
4988	8067c6a11b500d18debbb0ea853d293b.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4012	iexplore.exe
4500	winlogom.exe
4500	winlogom.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4988	8067c6a11b500d18debbb0ea853d293b.exe
4500	winlogom.exe
4012	iexplore.exe
4012	iexplore.exe
2824	IEXPLORE.EXE
2824	IEXPLORE.EXE
2824	IEXPLORE.EXE
2824	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 4500	4988	8067c6a11b500d18debbb0ea853d293b.exe	84
PID 4988 wrote to memory of 4500	4988	8067c6a11b500d18debbb0ea853d293b.exe	84
PID 4988 wrote to memory of 4500	4988	8067c6a11b500d18debbb0ea853d293b.exe	84
PID 4988 wrote to memory of 4012	4988	8067c6a11b500d18debbb0ea853d293b.exe	85
PID 4988 wrote to memory of 4012	4988	8067c6a11b500d18debbb0ea853d293b.exe	85
PID 4012 wrote to memory of 2824	4012	iexplore.exe	86
PID 4012 wrote to memory of 2824	4012	iexplore.exe	86
PID 4012 wrote to memory of 2824	4012	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\8067c6a11b500d18debbb0ea853d293b.exe
"C:\Users\Admin\AppData\Local\Temp\8067c6a11b500d18debbb0ea853d293b.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Windows\winlogom.exe
  C:\Windows\winlogom.exe auto
  2⤵
  - Executes dropped EXE
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  PID:4500
- C:\progra~1\Intern~1\iexplore.exe
  C:\\progra~1\\Intern~1\\iexplore.exe http://jianqiangzhe1.com/AddSetup.asp?id=127&localID=QM00013&isqq=3
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4012 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
f707892eea2389f9570075e7e0b2ba49

SHA1
20c62e10bbf4210c8d4c7966785344f29c4a8024

SHA256
49f24b1fd45db9778b10ec10d9c85ef0746828225855255f3617ed06c485c1ba

SHA512
c7b662eab0356715eecedae5ecacc260731f131f2e2c388ed9c91c6c1a7ce23aa02965ffb2f3ccf041fb249c3f6d713a19d7292b6afa4f5091d3fd5a4c2e054e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
ca3f1d6746d104d11176242114aaa2f0

SHA1
a5d4819cde6a598310694d74f6b7ca828047c6e5

SHA256
d233b20b11d7aab2d17cc05bebc37fdf12e4dc20eeaa3791bb0ff6d776d20404

SHA512
41e56dceee146b3b6ab79362c8a858e70e24d05cfb872a3275b42cd72bd62d44bcf8a8918791b476373af1625a1eca261caa1a3b48603cd93fe8aaea64267362

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MCZQJD7V\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\winlogom.exe

Filesize
40KB

MD5
8067c6a11b500d18debbb0ea853d293b

SHA1
db61531d68f5a6e12e73aae723239fb32d884332

SHA256
42bcc169e3b18588642c171ecee6a249cb113a3391a33e9e3ce5a1ac67218802

SHA512
137b68381bff9d73d6229f6064a6d16534c5f31ee137d88fa163cc6c30ca37f26dedd104ef9d06924ec5c5b97c785094787ce0eba0bd862dbf4fb47886c4644d

Download Submit
memory/4012-39-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-30-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-18-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-19-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-16-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-20-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-21-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-22-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-24-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-25-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-27-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-29-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-43-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-32-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-31-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-33-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-35-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-38-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-37-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-40-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-15-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-41-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-17-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-42-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-58-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-44-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-49-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-50-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-51-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-52-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-53-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-45-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-65-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-66-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-69-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-71-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-68-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-67-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-72-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-74-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-11-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-12-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4012-14-0x00007FFB4F280000-0x00007FFB4F2EE000-memory.dmp

Filesize
440KB

Download
memory/4500-92-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4500-8-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4988-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4988-64-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download