tofsee | b7ab78d52ddd0a763ab3b080ab5abbe49cc0f3118e1f846b4011714544caa9b1

General

Target

1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe
Size

10.1MB
MD5

1ed018195c5f31b6af29f1501af2990e
SHA1

3f1038c1b184b3235d01ad5a240789636afa2e52
SHA256

b7ab78d52ddd0a763ab3b080ab5abbe49cc0f3118e1f846b4011714544caa9b1
SHA512

0344baf16101c4fa0e833503f087a33d47209bbadfbafeab4152926cb7a8294656d7679d0f6f1170e5f0381bce66829da5b2ff69a0b5c47d8788ea57d9c2e3cd
SSDEEP

24576:nlO9VKnpR6/dblLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP/:nVpRm

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
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
1196	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\ngfklspc\ImagePath = "C:\\Windows\\SysWOW64\\ngfklspc\\oqlrkxh.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3232	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
856	oqlrkxh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 856 set thread context of 3232	856	oqlrkxh.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1140	sc.exe
1540	sc.exe
1228	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2336	856	WerFault.exe	96
896	4912	WerFault.exe	84

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	1ed018195c5f31b6af29f1501af2990e_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oqlrkxh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 2704	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	86
PID 4912 wrote to memory of 2704	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	86
PID 4912 wrote to memory of 2704	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	86
PID 4912 wrote to memory of 5080	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	88
PID 4912 wrote to memory of 5080	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	88
PID 4912 wrote to memory of 5080	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	88
PID 4912 wrote to memory of 1228	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	90
PID 4912 wrote to memory of 1228	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	90
PID 4912 wrote to memory of 1228	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	90
PID 4912 wrote to memory of 1140	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	92
PID 4912 wrote to memory of 1140	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	92
PID 4912 wrote to memory of 1140	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	92
PID 4912 wrote to memory of 1540	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	94
PID 4912 wrote to memory of 1540	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	94
PID 4912 wrote to memory of 1540	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	94
PID 856 wrote to memory of 3232	856	oqlrkxh.exe	97
PID 856 wrote to memory of 3232	856	oqlrkxh.exe	97
PID 856 wrote to memory of 3232	856	oqlrkxh.exe	97
PID 856 wrote to memory of 3232	856	oqlrkxh.exe	97
PID 856 wrote to memory of 3232	856	oqlrkxh.exe	97
PID 4912 wrote to memory of 1196	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	101
PID 4912 wrote to memory of 1196	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	101
PID 4912 wrote to memory of 1196	4912	1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe	101

C:\Users\Admin\AppData\Local\Temp\1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ngfklspc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oqlrkxh.exe" C:\Windows\SysWOW64\ngfklspc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ngfklspc binPath= "C:\Windows\SysWOW64\ngfklspc\oqlrkxh.exe /d\"C:\Users\Admin\AppData\Local\Temp\1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ngfklspc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ngfklspc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1540
- 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:1196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4912 -s 656
  2⤵
  - Program crash
  PID:896

C:\Windows\SysWOW64\ngfklspc\oqlrkxh.exe
C:\Windows\SysWOW64\ngfklspc\oqlrkxh.exe /d"C:\Users\Admin\AppData\Local\Temp\1ed018195c5f31b6af29f1501af2990e_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:856
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 520
  2⤵
  - Program crash
  PID:2336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 856 -ip 856
1⤵
PID:1844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4912 -ip 4912
1⤵
PID:3080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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

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

Filesize
10.8MB

MD5
075f5c45d661f9b9a98b3bea0e5fd795

SHA1
3e308a72fcff8e5621358ae667da8ba1d6c56483

SHA256
c7158a4d08fb8f29780363eaefa45dbfdc5888654994bc52ef8c348d4a8943e6

SHA512
ee1a516836653de2a6740a5779d761fa3026407f3a8308d1cac078d2ee15ba0627add6bd359f8f4c0ec4d6370204b1543261418d63fbff20362fce2ec9429510

Download Submit
memory/856-8-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download
memory/856-15-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download
memory/856-11-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download
memory/3232-13-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/3232-9-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/3232-19-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/3232-20-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/3232-21-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/4912-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4912-1-0x0000000000CE0000-0x0000000000DE0000-memory.dmp

Filesize
1024KB

Download
memory/4912-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4912-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4912-17-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4912-16-0x0000000000400000-0x0000000000938000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads