d3a71099b6d0b86fb3e477d089273c2867c3ce02094077103218a1d1db55a2f7

General

Target

d3a71099b6d0b86fb3e477d089273c2867c3ce02094077103218a1d1db55a2f7.dll
Size

105KB
MD5

3643a3eca3c593449f6b3e1afa409b0c
SHA1

0a9c611d55826f162c9345a7613d39dd827ec093
SHA256

d3a71099b6d0b86fb3e477d089273c2867c3ce02094077103218a1d1db55a2f7
SHA512

ab0c6bb6b42afe53a8187982e839d8a42b94bc61d290b00eeacfa60e704b1c28d627ad3b0c6cf7f8fa0977e02a5621b87caa4951eccbec915b342e07659011d5
SSDEEP

1536:u3oHD1O240XJ85tDJFYjJvuzXd8AVJbaWq6dxSwUty7mQMLsfW1Vh3i1HVS7Fc6p:u3SB4KJ8bDJFygTd8I22bUty77P7dG7

Score

10^/10

evasion upx

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0"	rundll32.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	rundll32.exe

UPX packed file 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4392-136-0x0000000010000000-0x000000001001A000-memory.dmp	upx

Enumerates connected drives 3 TTPs 3 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

File opened (read-only) \??\L: rundll32.exe
File opened (read-only) \??\I: rundll32.exe
File opened (read-only) \??\F: rundll32.exe

description	ioc	process
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	explorer.exe

Modifies registry class 32 IoCs

Processes:

explorer.exeExplorer.EXE

description	ioc	process
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 78003100000000006b55586c1100557365727300640009000400efbe874f77487855070c2e000000c70500000000010000000000000000003a0000000000119b830055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 56003100000000006b55586c12004170704461746100400009000400efbe6b55586c6e5549452e00000064e10100000001000000000000000000000000000000f9256e004100700070004400610074006100000016000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 50003100000000006b555977100041646d696e003c0009000400efbe6b55586c7855070c2e00000059e10100000001000000000000000000000000000000fa892c01410064006d0069006e00000014000000	explorer.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

explorer.exe

pid process

3636 explorer.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

rundll32.exe

pid process

4392 rundll32.exe
4392 rundll32.exe
4392 rundll32.exe
4392 rundll32.exe
4392 rundll32.exe
4392 rundll32.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

explorer.exeExplorer.EXE

pid process

3636 explorer.exe
2732 Explorer.EXE

pid	process
3636	explorer.exe

pid	process
4392	rundll32.exe
4392	rundll32.exe
4392	rundll32.exe
4392	rundll32.exe
4392	rundll32.exe
4392	rundll32.exe

pid	process
3636	explorer.exe
2732	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

rundll32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4392	rundll32.exe
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE
Token: SeShutdownPrivilege	2732	Explorer.EXE
Token: SeCreatePagefilePrivilege	2732	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

2732 Explorer.EXE
2732 Explorer.EXE
2732 Explorer.EXE
2732 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

explorer.exe

pid process

3636 explorer.exe
3636 explorer.exe

pid	process
2732	Explorer.EXE
2732	Explorer.EXE
2732	Explorer.EXE
2732	Explorer.EXE

pid	process
3636	explorer.exe
3636	explorer.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1700 wrote to memory of 4392	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 4392	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 4392	1700	rundll32.exe	rundll32.exe
PID 4392 wrote to memory of 2732	4392	rundll32.exe	Explorer.EXE
PID 4392 wrote to memory of 216	4392	rundll32.exe	explorer.exe
PID 4392 wrote to memory of 216	4392	rundll32.exe	explorer.exe
PID 4392 wrote to memory of 216	4392	rundll32.exe	explorer.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2732

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3a71099b6d0b86fb3e477d089273c2867c3ce02094077103218a1d1db55a2f7.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3a71099b6d0b86fb3e477d089273c2867c3ce02094077103218a1d1db55a2f7.dll,#1
3⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4392

C:\Windows\SysWOW64\explorer.exe
explorer C:\Users\Admin\AppData
4⤵
PID:216

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:3636

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3088

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

2

T1158

Modify Registry

3

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/216-140-0x0000000000000000-mapping.dmp

Download
memory/4392-132-0x0000000000000000-mapping.dmp

Download
memory/4392-136-0x0000000010000000-0x000000001001A000-memory.dmp

Filesize
104KB

Download
memory/4392-137-0x0000000001F70000-0x0000000001F91000-memory.dmp

Filesize
132KB

Download
memory/4392-138-0x0000000001F70000-0x0000000001F91000-memory.dmp

Filesize
132KB

Download
memory/4392-141-0x0000000001F70000-0x0000000001F91000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads