ae618e94c64b10307de3193efe693ba4cf0ea371a662038f705ba00779ad4f40

General

Target

wellwishervcf.dll
Size

286KB
MD5

4549708f2a9c381890a5558b2036bc49
SHA1

62309679b02f05d42bc05cf6c1f522e4837f4f04
SHA256

ae618e94c64b10307de3193efe693ba4cf0ea371a662038f705ba00779ad4f40
SHA512

11e0453fef0e061b93f6f7f9f2e956dbef5ff09781da602387e31fcab52b477b2827b07f528551fefbc7dd65b6ca8294f24c7751a5bdf58f341aa05ad78aef8c

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 16 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{D5948861-CCBC-11EA-8770-7AA6CCA87771} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3816 wrote to memory of 3860	3816	rundll32.exe	66
PID 3816 wrote to memory of 3860	3816	rundll32.exe	66
PID 3816 wrote to memory of 3860	3816	rundll32.exe	66
PID 2292 wrote to memory of 2476	2292	iexplore.exe	72
PID 2292 wrote to memory of 2476	2292	iexplore.exe	72
PID 2292 wrote to memory of 2476	2292	iexplore.exe	72
PID 2292 wrote to memory of 3612	2292	iexplore.exe	73
PID 2292 wrote to memory of 3612	2292	iexplore.exe	73
PID 2292 wrote to memory of 3612	2292	iexplore.exe	73

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2292	iexplore.exe
2292	iexplore.exe
2476	IEXPLORE.EXE
2476	IEXPLORE.EXE
2292	iexplore.exe
2292	iexplore.exe
3612	IEXPLORE.EXE
3612	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2292	iexplore.exe
2292	iexplore.exe

Checks whether UAC is enabled 3 IoCs

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	iexplore.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	IEXPLORE.EXE
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wellwishervcf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\wellwishervcf.dll,#1
  2⤵
  PID:3860

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
- Suspicious use of SetWindowsHookEx
- Suspicious use of FindShellTrayWindow
- Checks whether UAC is enabled
PID:2292
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2292 CREDAT:82945 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  - Checks whether UAC is enabled
  PID:2476
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2292 CREDAT:82950 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  - Checks whether UAC is enabled
  PID:3612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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