tofsee | af0124061f4caefe4555471bc3436aecc0a957d8d3bb3695bdd431708a5c4e1e

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 01:45

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General

Target

28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe
Size

11.3MB
MD5

28a42f9bd803a81293892fb0cd77ddfe
SHA1

0f951b5cb9ee1fdd68d1c2ee29b5d81bc6804895
SHA256

af0124061f4caefe4555471bc3436aecc0a957d8d3bb3695bdd431708a5c4e1e
SHA512

5b7bbb0467d8aad87cced24e3b1842a6fb9045de4881fef5995515760b60a5b5f5a6516dfa44cbb3c027b7c357ce48654f7bbaed23f72413e959fabd8d51b80d
SSDEEP

3072:6NoWIXVg044YmyJc/rY/2Woct6Mz+7L00vyLf9nQLWLIMcesvKeHTQzIaH/q99QI:6NoWwy0jYBkE/vocLz+2QSLIBee8q9N

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\rrhvzweo = "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
1560	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\rrhvzweo\ImagePath = "C:\\Windows\\SysWOW64\\rrhvzweo\\vhtbbmbj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1052	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2568	vhtbbmbj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 1052	2568	vhtbbmbj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2372	sc.exe
2676	sc.exe
2600	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe
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	svchost.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vhtbbmbj.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2980	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	30
PID 2704 wrote to memory of 2980	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	30
PID 2704 wrote to memory of 2980	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	30
PID 2704 wrote to memory of 2980	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	30
PID 2704 wrote to memory of 2976	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	32
PID 2704 wrote to memory of 2976	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	32
PID 2704 wrote to memory of 2976	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	32
PID 2704 wrote to memory of 2976	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	32
PID 2704 wrote to memory of 2600	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	34
PID 2704 wrote to memory of 2600	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	34
PID 2704 wrote to memory of 2600	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	34
PID 2704 wrote to memory of 2600	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	34
PID 2704 wrote to memory of 2372	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2372	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2372	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2372	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2676	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	38
PID 2704 wrote to memory of 2676	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	38
PID 2704 wrote to memory of 2676	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	38
PID 2704 wrote to memory of 2676	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	38
PID 2704 wrote to memory of 1560	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	41
PID 2704 wrote to memory of 1560	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	41
PID 2704 wrote to memory of 1560	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	41
PID 2704 wrote to memory of 1560	2704	28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe	41
PID 2568 wrote to memory of 1052	2568	vhtbbmbj.exe	43
PID 2568 wrote to memory of 1052	2568	vhtbbmbj.exe	43
PID 2568 wrote to memory of 1052	2568	vhtbbmbj.exe	43
PID 2568 wrote to memory of 1052	2568	vhtbbmbj.exe	43
PID 2568 wrote to memory of 1052	2568	vhtbbmbj.exe	43
PID 2568 wrote to memory of 1052	2568	vhtbbmbj.exe	43

C:\Users\Admin\AppData\Local\Temp\28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rrhvzweo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vhtbbmbj.exe" C:\Windows\SysWOW64\rrhvzweo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rrhvzweo binPath= "C:\Windows\SysWOW64\rrhvzweo\vhtbbmbj.exe /d\"C:\Users\Admin\AppData\Local\Temp\28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rrhvzweo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rrhvzweo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- 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:1560

C:\Windows\SysWOW64\rrhvzweo\vhtbbmbj.exe
C:\Windows\SysWOW64\rrhvzweo\vhtbbmbj.exe /d"C:\Users\Admin\AppData\Local\Temp\28a42f9bd803a81293892fb0cd77ddfe_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- 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:1052

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\vhtbbmbj.exe

Filesize
14.4MB

MD5
0079b578573762a88d1c12588707334e

SHA1
c3dcfbf4f4c8a67d143ac7892d54e88195debf46

SHA256
35c3c5cd69764e3ac58e7e975f0dd336593846151d2bcbd9cd8a0f01b7e2a3a6

SHA512
d3b180f9995cd75e73b8e2a76e7dd4d873d2222f43cd1d7d8f8388d33dcd2f6d853d47b6f1f912780899749cc40d91179562fd08cb2d25fb5854415192cdc1a3

Download Submit
memory/1052-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1052-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1052-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1052-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1052-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2704-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2704-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2704-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2704-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2704-1-0x0000000000940000-0x0000000000A40000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads