tofsee | 931edead1df66c59790bc1168f88ffd22b62cdfb302f4c72c849b9c757e0b5f8

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 11:07

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General

Target

2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe
Size

14.8MB
MD5

2134b61a7f995d8a24611160d791ad5f
SHA1

e9bc86f67d55e7cbc27d74d668187467c908a7f3
SHA256

931edead1df66c59790bc1168f88ffd22b62cdfb302f4c72c849b9c757e0b5f8
SHA512

771e54da94b6435d0185a8c750025102047fc3323de4d493694f8d371485b060bc25e2848cd491fdde8c6a44cea628ec5fba93dd4459b3d4301f9bac9df69bcd
SSDEEP

196608:6HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHn:

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\hbrrcinv = "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
2696	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\hbrrcinv\ImagePath = "C:\\Windows\\SysWOW64\\hbrrcinv\\bbuhtqpr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2216	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2756	bbuhtqpr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2216	2756	bbuhtqpr.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2832	sc.exe
2700	sc.exe
2608	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	2134b61a7f995d8a24611160d791ad5f_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	bbuhtqpr.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2780	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2780	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2780	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2780	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2808	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	33
PID 2220 wrote to memory of 2808	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	33
PID 2220 wrote to memory of 2808	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	33
PID 2220 wrote to memory of 2808	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	33
PID 2220 wrote to memory of 2832	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	35
PID 2220 wrote to memory of 2832	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	35
PID 2220 wrote to memory of 2832	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	35
PID 2220 wrote to memory of 2832	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	35
PID 2220 wrote to memory of 2700	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	37
PID 2220 wrote to memory of 2700	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	37
PID 2220 wrote to memory of 2700	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	37
PID 2220 wrote to memory of 2700	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	37
PID 2220 wrote to memory of 2608	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	39
PID 2220 wrote to memory of 2608	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	39
PID 2220 wrote to memory of 2608	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	39
PID 2220 wrote to memory of 2608	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	39
PID 2220 wrote to memory of 2696	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	42
PID 2220 wrote to memory of 2696	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	42
PID 2220 wrote to memory of 2696	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	42
PID 2220 wrote to memory of 2696	2220	2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe	42
PID 2756 wrote to memory of 2216	2756	bbuhtqpr.exe	44
PID 2756 wrote to memory of 2216	2756	bbuhtqpr.exe	44
PID 2756 wrote to memory of 2216	2756	bbuhtqpr.exe	44
PID 2756 wrote to memory of 2216	2756	bbuhtqpr.exe	44
PID 2756 wrote to memory of 2216	2756	bbuhtqpr.exe	44
PID 2756 wrote to memory of 2216	2756	bbuhtqpr.exe	44

C:\Users\Admin\AppData\Local\Temp\2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hbrrcinv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bbuhtqpr.exe" C:\Windows\SysWOW64\hbrrcinv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hbrrcinv binPath= "C:\Windows\SysWOW64\hbrrcinv\bbuhtqpr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hbrrcinv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hbrrcinv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- 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:2696

C:\Windows\SysWOW64\hbrrcinv\bbuhtqpr.exe
C:\Windows\SysWOW64\hbrrcinv\bbuhtqpr.exe /d"C:\Users\Admin\AppData\Local\Temp\2134b61a7f995d8a24611160d791ad5f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- 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:2216

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\bbuhtqpr.exe

Filesize
10.5MB

MD5
6740ab0fab6e4f52506d156645279cf3

SHA1
778282dccd3d9a3668deccc7b12b61fb57b7153f

SHA256
049600cc960181606549609463106b052bf4ca2ea33af1fa1c9f72dfe1c39a22

SHA512
9168799d12e1ee7ce1779bbbdd16ca75332636ca300e11aee8d054f59e4a433ac6b3c74c7338f882fb14f9f45c9a1dacf5da547a8245f739151348158add6af2

Download Submit
memory/2216-14-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2216-11-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2216-17-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2216-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2216-18-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2220-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-1-0x0000000002DD0000-0x0000000002ED0000-memory.dmp

Filesize
1024KB

Download
memory/2220-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-8-0x0000000000400000-0x0000000002C69000-memory.dmp

Filesize
40.4MB

Download
memory/2220-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2220-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2756-16-0x0000000000400000-0x0000000002C69000-memory.dmp

Filesize
40.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads