3ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42

General

Target

MEMZ.exe
Size

12KB
MD5

a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1

761168201520c199dba68add3a607922d8d4a86e
SHA256

3ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA512

89923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
SSDEEP

192:HMDLTxWDf/pl3cIEiwqZKBktLe3P+qf2jhP6B5b2yL3:H4IDH3cIqqvUWq+jhyT2yL

Score

6^/10

bootkit persistence

Malware Config

Signatures

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
T1067

Processes:

MEMZ.exe

description ioc process

File opened for modification \??\PhysicalDrive0 MEMZ.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	\??\PhysicalDrive0	MEMZ.exe

Modifies Internet Explorer settings 1 TTPs 33 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 507591900b64d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A0D02601-CFFE-11ED-AC5A-7AA90D5E5B0D} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000dbb59ddc676e394a83d3f942d26f43ca00000000020000000000106600000001000020000000c7b06526e6cdeca069077d3cb256c2090f055f7bfe4f5c461cccf7974063420e000000000e8000000002000020000000ad81e6f2fa72e326cee6786a82f61fdf46ed901bef854042f0fddd67047b8a662000000025728f0398d5bffd561c19b3ad27b522de577a50d4f7c9440edc53f25774e6d040000000ad7f33e7eafe67cd6f12405319d61d8240357ce5de0a7a399c58510462c35a849cb296b8d5ac9602e8f9fb261b2b75dc9c470eae0d18114d008f664c99c5b3fe	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "386454701"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

MEMZ.exeMEMZ.exeMEMZ.exeMEMZ.exeMEMZ.exe

pid	process
1396	MEMZ.exe
948	MEMZ.exe
796	MEMZ.exe
1688	MEMZ.exe
1112	MEMZ.exe
1112	MEMZ.exe
1396	MEMZ.exe
796	MEMZ.exe
1688	MEMZ.exe
948	MEMZ.exe
1688	MEMZ.exe
1112	MEMZ.exe
948	MEMZ.exe
1396	MEMZ.exe
796	MEMZ.exe
948	MEMZ.exe
796	MEMZ.exe
1396	MEMZ.exe
1688	MEMZ.exe
1112	MEMZ.exe
1112	MEMZ.exe
1688	MEMZ.exe
948	MEMZ.exe
1396	MEMZ.exe
796	MEMZ.exe
1112	MEMZ.exe
948	MEMZ.exe
1688	MEMZ.exe
796	MEMZ.exe
1396	MEMZ.exe
1112	MEMZ.exe
1396	MEMZ.exe
1688	MEMZ.exe
796	MEMZ.exe
948	MEMZ.exe
1112	MEMZ.exe
1688	MEMZ.exe
948	MEMZ.exe
1396	MEMZ.exe
796	MEMZ.exe
1112	MEMZ.exe
948	MEMZ.exe
796	MEMZ.exe
1688	MEMZ.exe
1396	MEMZ.exe
1688	MEMZ.exe
1112	MEMZ.exe
796	MEMZ.exe
948	MEMZ.exe
1396	MEMZ.exe
1688	MEMZ.exe
948	MEMZ.exe
1112	MEMZ.exe
796	MEMZ.exe
1396	MEMZ.exe
1688	MEMZ.exe
1112	MEMZ.exe
948	MEMZ.exe
1396	MEMZ.exe
796	MEMZ.exe
1688	MEMZ.exe
948	MEMZ.exe
1112	MEMZ.exe
1396	MEMZ.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

AUDIODG.EXE

description	pid	process
Token: 33	760	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	760	AUDIODG.EXE
Token: 33	760	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	760	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

notepad.exeiexplore.exe

pid process

1484 notepad.exe
1572 iexplore.exe

pid	process
1484	notepad.exe
1572	iexplore.exe

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

wordpad.exeMEMZ.exeiexplore.exeIEXPLORE.EXE

pid	process
1156	wordpad.exe
1156	wordpad.exe
1156	wordpad.exe
1156	wordpad.exe
1156	wordpad.exe
1152	MEMZ.exe
1572	iexplore.exe
1572	iexplore.exe
1004	IEXPLORE.EXE
1004	IEXPLORE.EXE
1004	IEXPLORE.EXE
1004	IEXPLORE.EXE
1152	MEMZ.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

MEMZ.exeMEMZ.exewordpad.exeiexplore.exe

description	pid	process	target process
PID 1760 wrote to memory of 948	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 948	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 948	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 948	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 796	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 796	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 796	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 796	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1688	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1688	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1688	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1688	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1396	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1396	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1396	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1396	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1112	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1112	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1112	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1112	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1152	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1152	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1152	1760	MEMZ.exe	MEMZ.exe
PID 1760 wrote to memory of 1152	1760	MEMZ.exe	MEMZ.exe
PID 1152 wrote to memory of 1484	1152	MEMZ.exe	notepad.exe
PID 1152 wrote to memory of 1484	1152	MEMZ.exe	notepad.exe
PID 1152 wrote to memory of 1484	1152	MEMZ.exe	notepad.exe
PID 1152 wrote to memory of 1484	1152	MEMZ.exe	notepad.exe
PID 1152 wrote to memory of 1156	1152	MEMZ.exe	wordpad.exe
PID 1152 wrote to memory of 1156	1152	MEMZ.exe	wordpad.exe
PID 1152 wrote to memory of 1156	1152	MEMZ.exe	wordpad.exe
PID 1152 wrote to memory of 1156	1152	MEMZ.exe	wordpad.exe
PID 1156 wrote to memory of 428	1156	wordpad.exe	splwow64.exe
PID 1156 wrote to memory of 428	1156	wordpad.exe	splwow64.exe
PID 1156 wrote to memory of 428	1156	wordpad.exe	splwow64.exe
PID 1156 wrote to memory of 428	1156	wordpad.exe	splwow64.exe
PID 1152 wrote to memory of 1572	1152	MEMZ.exe	iexplore.exe
PID 1152 wrote to memory of 1572	1152	MEMZ.exe	iexplore.exe
PID 1152 wrote to memory of 1572	1152	MEMZ.exe	iexplore.exe
PID 1152 wrote to memory of 1572	1152	MEMZ.exe	iexplore.exe
PID 1572 wrote to memory of 1004	1572	iexplore.exe	IEXPLORE.EXE
PID 1572 wrote to memory of 1004	1572	iexplore.exe	IEXPLORE.EXE
PID 1572 wrote to memory of 1004	1572	iexplore.exe	IEXPLORE.EXE
PID 1572 wrote to memory of 1004	1572	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
"C:\Users\Admin\AppData\Local\Temp\MEMZ.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1760

C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
"C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:948

C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
"C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:796

C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
"C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1688

C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
"C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1396

C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
"C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1112

C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
"C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /main
2⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\notepad.exe
"C:\Windows\System32\notepad.exe" \note.txt
3⤵
- Suspicious use of FindShellTrayWindow
PID:1484

C:\Program Files (x86)\Windows NT\Accessories\wordpad.exe
"C:\Program Files (x86)\Windows NT\Accessories\wordpad.exe"
3⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1156

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
4⤵
PID:428

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://google.co.ck/search?q=batch+virus+download
3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1572

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1572 CREDAT:275457 /prefetch:2
4⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1004

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4ec
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:760

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\note.txt
Filesize
218B

MD5
afa6955439b8d516721231029fb9ca1b

SHA1
087a043cc123c0c0df2ffadcf8e71e3ac86bbae9

SHA256
8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270

SHA512
5da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf

Download Submit
memory/1156-56-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

Filesize
4KB

Download
memory/1156-58-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads