tofsee | e72446ec15432b1960fa9fe6a6e468a6461433daf3e6cac79ad953ce0d10c686

Analysis

max time kernel
142s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
15-12-2024 10:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe
Size

12.2MB
MD5

f399ef025b4aad20f8d6bc1e3e23822d
SHA1

225ca5bec26218e9b2ac60ff741c5aa8dabe243a
SHA256

e72446ec15432b1960fa9fe6a6e468a6461433daf3e6cac79ad953ce0d10c686
SHA512

d9b6fdc3207fccd6e55d037c2f0111ff07e4c03304e6b1095e2388a38c3c666e349c949d337d4bc222938cb87a0bbd69c1eac5bbb8509febc593d235cae38a33
SSDEEP

24576:DRQITb1qsssssssssssssssssssssssssssssssssssssssssssssssssssssssr:n

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
Tofsee family
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\blgnmnzr = "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
2912	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\blgnmnzr\ImagePath = "C:\\Windows\\SysWOW64\\blgnmnzr\\yojvpbfx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2768	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2440	yojvpbfx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2440 set thread context of 2768	2440	yojvpbfx.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2884	sc.exe
2940	sc.exe
2980	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	yojvpbfx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f399ef025b4aad20f8d6bc1e3e23822d_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	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 2328 wrote to memory of 2140	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	29
PID 2328 wrote to memory of 2140	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	29
PID 2328 wrote to memory of 2140	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	29
PID 2328 wrote to memory of 2140	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	29
PID 2328 wrote to memory of 2872	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	31
PID 2328 wrote to memory of 2872	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	31
PID 2328 wrote to memory of 2872	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	31
PID 2328 wrote to memory of 2872	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	31
PID 2328 wrote to memory of 2884	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	33
PID 2328 wrote to memory of 2884	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	33
PID 2328 wrote to memory of 2884	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	33
PID 2328 wrote to memory of 2884	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	33
PID 2328 wrote to memory of 2940	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	35
PID 2328 wrote to memory of 2940	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	35
PID 2328 wrote to memory of 2940	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	35
PID 2328 wrote to memory of 2940	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	35
PID 2328 wrote to memory of 2980	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	37
PID 2328 wrote to memory of 2980	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	37
PID 2328 wrote to memory of 2980	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	37
PID 2328 wrote to memory of 2980	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	37
PID 2328 wrote to memory of 2912	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	40
PID 2328 wrote to memory of 2912	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	40
PID 2328 wrote to memory of 2912	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	40
PID 2328 wrote to memory of 2912	2328	f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe	40
PID 2440 wrote to memory of 2768	2440	yojvpbfx.exe	42
PID 2440 wrote to memory of 2768	2440	yojvpbfx.exe	42
PID 2440 wrote to memory of 2768	2440	yojvpbfx.exe	42
PID 2440 wrote to memory of 2768	2440	yojvpbfx.exe	42
PID 2440 wrote to memory of 2768	2440	yojvpbfx.exe	42
PID 2440 wrote to memory of 2768	2440	yojvpbfx.exe	42

C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\blgnmnzr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yojvpbfx.exe" C:\Windows\SysWOW64\blgnmnzr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create blgnmnzr binPath= "C:\Windows\SysWOW64\blgnmnzr\yojvpbfx.exe /d\"C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description blgnmnzr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start blgnmnzr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- 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:2912

C:\Windows\SysWOW64\blgnmnzr\yojvpbfx.exe
C:\Windows\SysWOW64\blgnmnzr\yojvpbfx.exe /d"C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- 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:2768

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\yojvpbfx.exe

Filesize
11.4MB

MD5
91c5670114244b6bb8431f6b1e4a69a8

SHA1
c7cfb7d89a6a36b8fef976bb54f9464ea74af119

SHA256
ac5362d3be026a2f1b8257f6172a3033f29292e3d6ea194d6381e748ca4fc46b

SHA512
75503ad036a7bac36e619320097561a65e7a1c6042feae6cf0eab65e302190c251dd626e8e835d8772260286213377746362600be7a4c7b6ed274e01576b2a9a

Download Submit
memory/2328-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2328-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2328-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-10-0x0000000002C00000-0x0000000002D00000-memory.dmp

Filesize
1024KB

Download
memory/2328-1-0x0000000002C00000-0x0000000002D00000-memory.dmp

Filesize
1024KB

Download
memory/2328-7-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2440-16-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2768-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-19-0x0000000000080000-0x0000000000095000-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