tofsee | 8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22

General

Target

JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe
Size

234KB
MD5

2a0a210808770119730af347fb5441dc
SHA1

1e7d63a597b09cfa2172404ef6d218a796611e11
SHA256

8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22
SHA512

175942fc9374acad0a6d635ac337c52993e531206f5d62d0f792caba7e3d630c17be160c75e418d885e49e619143436236ef0e69576b9f7d07f3570526af93d7
SSDEEP

6144:gBp+pc7xRkuTLd3Eaed34DekOjM4zmhw7GlsJC:gBp+K7xvd3EaeSKQ4SheJ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
220	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\urtamamj\ImagePath = "C:\\Windows\\SysWOW64\\urtamamj\\mkussirh.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe

Deletes itself 1 IoCs

pid	Process
2124	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3488	mkussirh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3488 set thread context of 2124	3488	mkussirh.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
800	sc.exe
1488	sc.exe
2040	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3716	640	WerFault.exe	81
1872	3488	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	mkussirh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 2516	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	82
PID 640 wrote to memory of 2516	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	82
PID 640 wrote to memory of 2516	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	82
PID 640 wrote to memory of 4560	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	84
PID 640 wrote to memory of 4560	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	84
PID 640 wrote to memory of 4560	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	84
PID 640 wrote to memory of 800	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	86
PID 640 wrote to memory of 800	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	86
PID 640 wrote to memory of 800	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	86
PID 640 wrote to memory of 1488	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	88
PID 640 wrote to memory of 1488	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	88
PID 640 wrote to memory of 1488	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	88
PID 640 wrote to memory of 2040	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	90
PID 640 wrote to memory of 2040	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	90
PID 640 wrote to memory of 2040	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	90
PID 640 wrote to memory of 220	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	93
PID 640 wrote to memory of 220	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	93
PID 640 wrote to memory of 220	640	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	93
PID 3488 wrote to memory of 2124	3488	mkussirh.exe	98
PID 3488 wrote to memory of 2124	3488	mkussirh.exe	98
PID 3488 wrote to memory of 2124	3488	mkussirh.exe	98
PID 3488 wrote to memory of 2124	3488	mkussirh.exe	98
PID 3488 wrote to memory of 2124	3488	mkussirh.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\urtamamj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mkussirh.exe" C:\Windows\SysWOW64\urtamamj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create urtamamj binPath= "C:\Windows\SysWOW64\urtamamj\mkussirh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description urtamamj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start urtamamj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2040
- 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:220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 640 -s 1356
  2⤵
  - Program crash
  PID:3716

C:\Windows\SysWOW64\urtamamj\mkussirh.exe
C:\Windows\SysWOW64\urtamamj\mkussirh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 520
  2⤵
  - Program crash
  PID:1872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 640 -ip 640
1⤵
PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3488 -ip 3488
1⤵
PID:4080

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.8MB

MD5
d9528e6db9bc3a18d72b4912a106e544

SHA1
c55b0f1500490c58ca578430d2707b1981056d29

SHA256
63aec7a9060ef1d861c72bd065118421706695f66bc18e2cdf2460b62c56cfe4

SHA512
6146509573e141b6a5c0943232f218b12434d459cddbf12a96698d63693efdf4cc4b27820f74d1406cfeeb3157e34982b0bfec1c48ee2e6b6469186db38a0ef2

Download Submit
memory/640-2-0x00000000025C0000-0x00000000025D3000-memory.dmp

Filesize
76KB

Download
memory/640-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

Filesize
1024KB

Download
memory/640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/640-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/640-9-0x00000000025C0000-0x00000000025D3000-memory.dmp

Filesize
76KB

Download
memory/640-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2124-11-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/2124-14-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/2124-16-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/3488-15-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/3488-12-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads