b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 11:02

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General

Target

b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
Size

1.4MB
MD5

fc51656210ae3bb8befe9803b1501c05
SHA1

c346e52a6a7f15c5ecb56563d25d64cdb5123203
SHA256

b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800
SHA512

5b323ef3aa2df90db48dc67cc1f8d4f08c782c6d339ea3a0be55d477d7ff8da3ac145ebd447d8f0dc5fe6f8f53d706b69a493460a54f97f8c58778cf6aae5f88
SSDEEP

24576:M+pS1PC6cyK5pnfAJ0DZ+NyPniSrlTi9+qvJI5j9Bq3:ctAe0DZcyvi+lTPt+

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 13 IoCs

Processes:

b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe

pid	process
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe

Drops file in Program Files directory 1 IoCs

Processes:

b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe

description ioc process

File created C:\Program Files (x86)\BrowserSetup\uninst.exe b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.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 created	C:\Program Files (x86)\BrowserSetup\uninst.exe	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{85032901-6B2B-11ED-A993-42FEA5F7B9B2} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a0f3cb6038ffd801	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000b68be4bdf43f0c4ea98d09e69183f9c9000000000200000000001066000000010000200000005e69d962366060ff2253097183646a7a9002f12c4a1babcbdc55176d519cb25d000000000e80000000020000200000005ccd996a6c5830c336c0cbb4e5da82780e728425848c37ba88b361a2f57e9d4d90000000de1448e98f817812a82a053e2e3bfd016e3a42c522b1d055af0e587d31ada0d6e40e4ee4cdf8552fcefb0ec2d6790c6d0beee9da07d9e5a4564b29b864dbfc8877980a0a620c7921035b485f300883c92fa253d7eec63ff29398ca5cd722a3152242526b58558e74d4afeef94c7a92dd5069abf873deb0d8533bf4d6fc43077ce96b42726e21eededc392116a459e40a40000000dbc591371861edf056f4d86ecf90580934fb80cf035fd4cf6aed0de6fc5fee8ecfbcfaa8f2f07af043d5cfd1f493d7a3185f139165cd4f357af671529788fd75	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000b68be4bdf43f0c4ea98d09e69183f9c900000000020000000000106600000001000020000000d0e26671c9ea72b3be2e13952d31570c71b015dc1b48eba6119348cd3abd2fd7000000000e80000000020000200000004e320f8594e15912e4290feb0cf99ef8d2205ee8274c5693474af011b6a14de520000000b8877577682fddc555965ff68461aaad4ffdb3e9a008ad381102b520b4433d5a40000000e64f4b11c251e14bafe283643c1a0fa7883ef4200e1eb8c2d934cd198515401dc4847555e3028144db2dc05d05cb6bd8b3d6890e26528ff7264fb2d8b9458b4f	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe

pid	process
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1556 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1556 iexplore.exe
1556 iexplore.exe
1256 IEXPLORE.EXE
1256 IEXPLORE.EXE
1256 IEXPLORE.EXE
1256 IEXPLORE.EXE

pid	process
1556	iexplore.exe

pid	process
1556	iexplore.exe
1556	iexplore.exe
1256	IEXPLORE.EXE
1256	IEXPLORE.EXE
1256	IEXPLORE.EXE
1256	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exeiexplore.exe

description	pid	process	target process
PID 1812 wrote to memory of 1556	1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe	iexplore.exe
PID 1812 wrote to memory of 1556	1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe	iexplore.exe
PID 1812 wrote to memory of 1556	1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe	iexplore.exe
PID 1812 wrote to memory of 1556	1812	b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe	iexplore.exe
PID 1556 wrote to memory of 1256	1556	iexplore.exe	IEXPLORE.EXE
PID 1556 wrote to memory of 1256	1556	iexplore.exe	IEXPLORE.EXE
PID 1556 wrote to memory of 1256	1556	iexplore.exe	IEXPLORE.EXE
PID 1556 wrote to memory of 1256	1556	iexplore.exe	IEXPLORE.EXE
PID 1556 wrote to memory of 1256	1556	iexplore.exe	IEXPLORE.EXE
PID 1556 wrote to memory of 1256	1556	iexplore.exe	IEXPLORE.EXE
PID 1556 wrote to memory of 1256	1556	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe
"C:\Users\Admin\AppData\Local\Temp\b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1812

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://k.deyiweixiu.cn/b05d359e4e42410909dd95597a69a63ab833327e3197a0a6c8bc3d443f40c800.exe/40.jpg
2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1556

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1556 CREDAT:275457 /prefetch:2
3⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1256

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\Inetc.dll
Filesize
20KB

MD5
50fdadda3e993688401f6f1108fabdb4

SHA1
04a9ae55d0fb726be49809582cea41d75bf22a9a

SHA256
6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

SHA512
e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\System.dll
Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nstF662.tmp\nsProcess.dll
Filesize
4KB

MD5
05450face243b3a7472407b999b03a72

SHA1
ffd88af2e338ae606c444390f7eaaf5f4aef2cd9

SHA256
95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89

SHA512
f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b

Download Submit
memory/1812-54-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

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