tofsee | 1fa257f7b2a9e043722395250eb0e81fe3d467da15c75d97042948c1fac5edec

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 07:39

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General

Target

ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe
Size

14.0MB
MD5

ab87b84a0adc37db621ed3048349fe7c
SHA1

cc8688b7eeeb7a0655a98fa152e94d35f452aa73
SHA256

1fa257f7b2a9e043722395250eb0e81fe3d467da15c75d97042948c1fac5edec
SHA512

9195b86abd69d327c51e5424f329d99b6cd2454606597d3e925f76ff2606fadfeb81cb94abaa443c18e1b45ae868710390b76299dbc35744f8058dc9725a4d15
SSDEEP

24576:6htJbmFQuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu3:DF

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\igtxbdjv = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2840	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\igtxbdjv\ImagePath = "C:\\Windows\\SysWOW64\\igtxbdjv\\ppmhkbsk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2296	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	ppmhkbsk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2296	2872	ppmhkbsk.exe	44

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2560	sc.exe
3012	sc.exe
2720	sc.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ppmhkbsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 2504	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	30
PID 2064 wrote to memory of 2504	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	30
PID 2064 wrote to memory of 2504	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	30
PID 2064 wrote to memory of 2504	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	30
PID 2064 wrote to memory of 1428	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	32
PID 2064 wrote to memory of 1428	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	32
PID 2064 wrote to memory of 1428	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	32
PID 2064 wrote to memory of 1428	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	32
PID 2064 wrote to memory of 2560	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	34
PID 2064 wrote to memory of 2560	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	34
PID 2064 wrote to memory of 2560	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	34
PID 2064 wrote to memory of 2560	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	34
PID 2064 wrote to memory of 3012	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	36
PID 2064 wrote to memory of 3012	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	36
PID 2064 wrote to memory of 3012	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	36
PID 2064 wrote to memory of 3012	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	36
PID 2064 wrote to memory of 2720	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	39
PID 2064 wrote to memory of 2720	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	39
PID 2064 wrote to memory of 2720	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	39
PID 2064 wrote to memory of 2720	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	39
PID 2064 wrote to memory of 2840	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	42
PID 2064 wrote to memory of 2840	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	42
PID 2064 wrote to memory of 2840	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	42
PID 2064 wrote to memory of 2840	2064	ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe	42
PID 2872 wrote to memory of 2296	2872	ppmhkbsk.exe	44
PID 2872 wrote to memory of 2296	2872	ppmhkbsk.exe	44
PID 2872 wrote to memory of 2296	2872	ppmhkbsk.exe	44
PID 2872 wrote to memory of 2296	2872	ppmhkbsk.exe	44
PID 2872 wrote to memory of 2296	2872	ppmhkbsk.exe	44
PID 2872 wrote to memory of 2296	2872	ppmhkbsk.exe	44

C:\Users\Admin\AppData\Local\Temp\ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\igtxbdjv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ppmhkbsk.exe" C:\Windows\SysWOW64\igtxbdjv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create igtxbdjv binPath= "C:\Windows\SysWOW64\igtxbdjv\ppmhkbsk.exe /d\"C:\Users\Admin\AppData\Local\Temp\ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description igtxbdjv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start igtxbdjv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2840

C:\Windows\SysWOW64\igtxbdjv\ppmhkbsk.exe
C:\Windows\SysWOW64\igtxbdjv\ppmhkbsk.exe /d"C:\Users\Admin\AppData\Local\Temp\ab87b84a0adc37db621ed3048349fe7c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ppmhkbsk.exe

Filesize
14.0MB

MD5
7d9fc9d6aa2615dd67f66f73fe0c15ab

SHA1
c24e647cbd05f6a0e18048947427e3c813fe72c8

SHA256
2389ebad7d2837ff9a242f746b87f8893e902316caefe9cb039576f9fa8626d2

SHA512
1cdf4c88747753344cbf4adb531b395e77262b426d3f62562702194fe7b709d1fc6169772817b02a947f6db3d323a1d9cd123d311d917998f668e5a594df8d1d

Download Submit
memory/2064-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2064-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2064-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2064-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2064-8-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2064-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2064-10-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2296-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2296-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2296-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2296-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2296-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2872-18-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads