d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd

General

Target

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Size

328KB
MD5

031cf5471bdbc50868f77f8c1cfe2120
SHA1

5e5bfd0a0bd4d0e7cf619af4610fd14a4ec1f2ad
SHA256

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd
SHA512

533aae9b70a1966b33f5680ee93d08d03b5ed560c45e13246e0b90ca48b83493f617cc44baaf8c621a78ad226ef650eedb1917f26289299c28b23411af8624c7
SSDEEP

6144:2yWOeLm+tkxoGQvT+W4+HMc+MEGRQ6saHSMf3z0AzbLUG50Tpm+MmvbWdlL0d5aU:2Cemx0vN3HKGi6sYjJLUGGtedud5tr7

Score

8^/10

adware discovery exploit persistence stealer

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

description ioc process

File created C:\Windows\SysWOW64\drivers\5ffc5b21.sys d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Possible privilege escalation attempt 4 IoCs
exploit

Processes:

takeown.exeicacls.exetakeown.exeicacls.exe

pid process

2168 takeown.exe
1748 icacls.exe
3564 takeown.exe
100 icacls.exe

description	ioc	process
File created	C:\Windows\SysWOW64\drivers\5ffc5b21.sys	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

pid	process
2168	takeown.exe
1748	icacls.exe
3564	takeown.exe
100	icacls.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\5ffc5b21\ImagePath = "\\??\\C:\\Windows\\SysWOW64\\drivers\\5ffc5b21.sys"	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

Modifies file permissions 1 TTPs 4 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exetakeown.exeicacls.exetakeown.exe

pid process

1748 icacls.exe
3564 takeown.exe
100 icacls.exe
2168 takeown.exe

pid	process
1748	icacls.exe
3564	takeown.exe
100	icacls.exe
2168	takeown.exe

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

Maps connected drives based on registry 3 TTPs 3 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Key value enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

Drops file in System32 directory 4 IoCs

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\ws2tcpip.dll	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
File created	C:\Windows\SysWOW64\wshtcpip.dll	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
File created	C:\Windows\SysWOW64\midimap.dll	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
File created	C:\Windows\SysWOW64\ws2tcpip.dll	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

Modifies registry class 4 IoCs

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\HOOK_ID\name = "d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe"	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\SYS_DLL	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\SYS_DLL\name = "YJuH8h82gT.dll"	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\HOOK_ID	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

pid	process
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

Suspicious behavior: LoadsDriver 2 IoCs

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

pid process

652
2108 d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

pid	process
652
2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exetakeown.exetakeown.exe

description	pid	process
Token: SeDebugPrivilege	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
Token: SeTakeOwnershipPrivilege	3564	takeown.exe
Token: SeTakeOwnershipPrivilege	2168	takeown.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.execmd.execmd.exe

description	pid	process	target process
PID 2108 wrote to memory of 4240	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 2108 wrote to memory of 4240	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 2108 wrote to memory of 4240	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 4240 wrote to memory of 3564	4240	cmd.exe	takeown.exe
PID 4240 wrote to memory of 3564	4240	cmd.exe	takeown.exe
PID 4240 wrote to memory of 3564	4240	cmd.exe	takeown.exe
PID 4240 wrote to memory of 100	4240	cmd.exe	icacls.exe
PID 4240 wrote to memory of 100	4240	cmd.exe	icacls.exe
PID 4240 wrote to memory of 100	4240	cmd.exe	icacls.exe
PID 2108 wrote to memory of 204	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 2108 wrote to memory of 204	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 2108 wrote to memory of 204	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 204 wrote to memory of 2168	204	cmd.exe	takeown.exe
PID 204 wrote to memory of 2168	204	cmd.exe	takeown.exe
PID 204 wrote to memory of 2168	204	cmd.exe	takeown.exe
PID 204 wrote to memory of 1748	204	cmd.exe	icacls.exe
PID 204 wrote to memory of 1748	204	cmd.exe	icacls.exe
PID 204 wrote to memory of 1748	204	cmd.exe	icacls.exe
PID 2108 wrote to memory of 4112	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 2108 wrote to memory of 4112	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe
PID 2108 wrote to memory of 4112	2108	d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe
"C:\Users\Admin\AppData\Local\Temp\d42835d57142df29170c664917e655756dce04aa357de44faefc595303515fcd.exe"
1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Installs/modifies Browser Helper Object
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2108

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c takeown /f C:\Windows\SysWOW64\wshtcpip.dll && icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
2⤵
- Suspicious use of WriteProcessMemory
PID:4240

C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\SysWOW64\wshtcpip.dll
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:3564

C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:100

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c takeown /f C:\Windows\SysWOW64\midimap.dll && icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
2⤵
- Suspicious use of WriteProcessMemory
PID:204

C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\SysWOW64\midimap.dll
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:2168

C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1748

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
2⤵
PID:4112

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

File Permissions Modification

1

T1222

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
Filesize
181B

MD5
d57802ae95632b7be5fca645495f7c22

SHA1
fd09192dde81545b975706265f3015bd99d2f33e

SHA256
7bb0bab425109981cb4cd5991a33d29403868cd537690351998cd86cb22a667f

SHA512
4a57c67d8480b45a9bb4ece11dea9e55ca2a42034f8db18ff6090e54602d2669464cff916a85f20d0f87919eb904cc01ade4e962689a1a8b13edb19b849ade6d

Download Submit
memory/100-138-0x0000000000000000-mapping.dmp

Download
memory/204-139-0x0000000000000000-mapping.dmp

Download
memory/1748-141-0x0000000000000000-mapping.dmp

Download
memory/2108-135-0x0000000000D30000-0x0000000000D50000-memory.dmp

Filesize
128KB

Download
memory/2108-134-0x0000000001000000-0x000000000116A000-memory.dmp

Filesize
1.4MB

Download
memory/2108-133-0x0000000000D30000-0x0000000000D50000-memory.dmp

Filesize
128KB

Download
memory/2108-143-0x0000000001000000-0x000000000116A000-memory.dmp

Filesize
1.4MB

Download
memory/2108-132-0x0000000001000000-0x000000000116A000-memory.dmp

Filesize
1.4MB

Download
memory/2168-140-0x0000000000000000-mapping.dmp

Download
memory/3564-137-0x0000000000000000-mapping.dmp

Download
memory/4112-142-0x0000000000000000-mapping.dmp

Download
memory/4240-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads