tofsee | eb63b5df3fa1a0f2c6241e26e3269cf5319180d392819110d765ce5d735d1557

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 18:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe
Size

12.6MB
MD5

ee32ada5e5b8578f25d6f2b0762d2f28
SHA1

d7cf1680da472199f301dcc5758c95b0c11820fc
SHA256

eb63b5df3fa1a0f2c6241e26e3269cf5319180d392819110d765ce5d735d1557
SHA512

e96ff40d526a55b0df2499dbc2df4f38f0ef5fd36440c95f939646c290410f9c95f783733e8e44d17ffc09cf52af3ed622ed87123cc7d3bee4797fe4583e613d
SSDEEP

393216:N88888888888888888888888888888888888888888888888888888888888888M:

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

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\uckcnkmk = "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
2884	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\uckcnkmk\ImagePath = "C:\\Windows\\SysWOW64\\uckcnkmk\\tnwgtwbn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2824	tnwgtwbn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 2912	2824	tnwgtwbn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2044	sc.exe
2708	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tnwgtwbn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	30
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	30
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	30
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	30
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	32
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	32
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	32
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	32
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	34
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	34
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	34
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	34
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	36
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	36
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	36
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	36
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	38
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	38
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	38
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	38
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	41
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	41
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	41
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	41
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	43
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	43
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	43
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	43
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	43
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	43

C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uckcnkmk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnwgtwbn.exe" C:\Windows\SysWOW64\uckcnkmk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uckcnkmk binPath= "C:\Windows\SysWOW64\uckcnkmk\tnwgtwbn.exe /d\"C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uckcnkmk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uckcnkmk
  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:2884

C:\Windows\SysWOW64\uckcnkmk\tnwgtwbn.exe
C:\Windows\SysWOW64\uckcnkmk\tnwgtwbn.exe /d"C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- 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:2912

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.8MB

MD5
2886a1557a2b9cae80678753ba2cf2ee

SHA1
399df472740c8f633418ac30a1cd44aa3c25030f

SHA256
107339926b441855fb0365988a0a122922538413e1547b8aab4c4fc61d3b69b4

SHA512
3aabdcdeaf3408b96e9b9fbf44aeb47a2b3fe51b07e3be56919f07b498ce82723fc86d57c09288b01703235c3d48f18099c5c8ebcd0bdbbcbf48ca4a8e27000f

Download Submit
memory/372-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/372-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/372-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/372-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/372-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/372-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2824-17-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2912-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads