d6c8e4ec3d74f7d1d7a40216c0dc07f489300b642e71380d0db21864a80fb62e

General

Target
jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Size 85KB
Sample261006-shffdacw7r
SHA256 d6c8e4ec3d74f7d1d7a40216c0dc07f489300b642e71380d0db21864a80fb62e
MD5 d668c9b739d0e1ba10636a6c76647a7a
SHA1 36c1255f342080ce76e769c27b23ce64a69ce8b9
SHA512 0d047920037d2026c45d3d639cb214af762884823877133c117bc00b44bae0ef473dafd9d6997e6e343a4a84d27c217528f74faa896e53412d658d62c22737fa
SSDEEP 1536:BfRCemhP4iIZ9hWFsCJA+vUEWW/6Qid12HWT3E46mNNS:rmhwiIZHWFs8rWW/6ddkH23P62S
TLSH
T16283E1638AEC0416F4B22F3819364A15AB39BC5D9BB9DACF03145DAE34711129DF437B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
5044	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{78364D99-A640-4ddf-B91A-67EFF8373045}	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{78364D99-A640-4ddf-B91A-67EFF8373045}	regsvr32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\appwiz.dll	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
File opened for modification	C:\Windows\SysWOW64\appwiz.dll	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Internet Explorer\Main	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes"	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Key created	\REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Internet Explorer\Main	regsvr32.exe

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32\ = "C:\\Windows\\SysWow64\\\\appwiz.dll"	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32\ThreadingModel = "apartment"	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32\ = "C:\\Windows\\SysWow64\\appwiz.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{78364D99-A640-4ddf-B91A-67EFF8373045}	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{78364D99-A640-4ddf-B91A-67EFF8373045}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32	regsvr32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5296	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5296	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5296 wrote to memory of 5044	5296	jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe	89

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Agent.ack.exe"
1⤵
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5296
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\\appwiz.dll
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:5044

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

appwiz.dll

Path C:\Windows\SysWOW64\appwiz.dll
Size 70KB
SHA256 ecfe0f2fa4ce8bb4b8b4b781b76aef55dc5dea3a4045724226c68bce782e4094
MD5 1aa5f3ef9522cc5d287bdd19e1ce8266
SHA1 efd8e1e22caccbf3602210c24805291503a81840
SHA512 b8792efd509f39b46430ee566f2d11c70efd59479c40ee1e66b96fe05d9f690dc00e7390675b3186b9f5ef12be817190baa1d0c7bd0d15e477297b3d10ad088a
SSDEEP 1536:k4iIZ9hWFsCJA+vUEWW/6Qid12HWT3E46mNx:xiIZHWFs8rWW/6ddkH23P6+
TLSH
T14663027BCA9C401CF9B62D7A1829C845E23D955DDFCEB2C243385FFA30E60654DE81A6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/5044-6-0x0000000010000000-0x000000001002E000-memory.dmp

Download

memory/5044-8-0x0000000010000000-0x000000001002E000-memory.dmp

Download

memory/5044-7-0x000000001002C000-0x000000001002D000-memory.dmp

Download

memory/5296-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/5296-3-0x0000000000400000-0x0000000000417000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads