tofsee | d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9

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
25-12-2024 13:44

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General

Target

JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe
Size

303KB
MD5

0d3070756e0365fc2a42bec1d0d14f5a
SHA1

889328133bdeb1003e62a7bae6357a030f5cf94b
SHA256

d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9
SHA512

095319434c2b746dd4c1884aeb1bf74198f49e28367a8e38148b2dbf1e84d17dc46929bbd6daec063b61b1b98faf7c4e8c40f572b7270fe22fe703c8f88242a6
SSDEEP

6144:iKpfugLkStGFJ0H8luL6MCOhxxFeTr/ekI:i2gStGFJ0HnL6+zxF6L

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\rfvwqbcj = "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
2896	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\rfvwqbcj\ImagePath = "C:\\Windows\\SysWOW64\\rfvwqbcj\\pnxvvluk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2676	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	pnxvvluk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 2676	2792	pnxvvluk.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2564	sc.exe
2840	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.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	pnxvvluk.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 1832	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	31
PID 2352 wrote to memory of 1832	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	31
PID 2352 wrote to memory of 1832	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	31
PID 2352 wrote to memory of 1832	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	31
PID 2352 wrote to memory of 2764	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	33
PID 2352 wrote to memory of 2764	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	33
PID 2352 wrote to memory of 2764	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	33
PID 2352 wrote to memory of 2764	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	33
PID 2352 wrote to memory of 2712	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	35
PID 2352 wrote to memory of 2712	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	35
PID 2352 wrote to memory of 2712	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	35
PID 2352 wrote to memory of 2712	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	35
PID 2352 wrote to memory of 2564	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	37
PID 2352 wrote to memory of 2564	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	37
PID 2352 wrote to memory of 2564	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	37
PID 2352 wrote to memory of 2564	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	37
PID 2352 wrote to memory of 2840	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	39
PID 2352 wrote to memory of 2840	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	39
PID 2352 wrote to memory of 2840	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	39
PID 2352 wrote to memory of 2840	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	39
PID 2352 wrote to memory of 2896	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	42
PID 2352 wrote to memory of 2896	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	42
PID 2352 wrote to memory of 2896	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	42
PID 2352 wrote to memory of 2896	2352	JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe	42
PID 2792 wrote to memory of 2676	2792	pnxvvluk.exe	44
PID 2792 wrote to memory of 2676	2792	pnxvvluk.exe	44
PID 2792 wrote to memory of 2676	2792	pnxvvluk.exe	44
PID 2792 wrote to memory of 2676	2792	pnxvvluk.exe	44
PID 2792 wrote to memory of 2676	2792	pnxvvluk.exe	44
PID 2792 wrote to memory of 2676	2792	pnxvvluk.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rfvwqbcj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pnxvvluk.exe" C:\Windows\SysWOW64\rfvwqbcj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rfvwqbcj binPath= "C:\Windows\SysWOW64\rfvwqbcj\pnxvvluk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rfvwqbcj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rfvwqbcj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- 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:2896

C:\Windows\SysWOW64\rfvwqbcj\pnxvvluk.exe
C:\Windows\SysWOW64\rfvwqbcj\pnxvvluk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d00924d8ea14605dc1e18c129e91fbcdbab4176ba365ce61a4c3df91fd4926d9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:2676

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\pnxvvluk.exe

Filesize
12.4MB

MD5
fc30bc836a3e75b983d0e80ba33d4943

SHA1
4e15b86d29d60a75f90c531d90fd673a46b3e879

SHA256
6a645da679344d86904fe94fe8579b16c88bd92390254c8308350a561a592fa3

SHA512
ca37d72a2b6936a8eacbc0be1f37ff41d4c7da50800b8c9e631b96cd5dafde00966977dc08b77b027e6324056ef831e0d6b6a559740ca821f7fe2b06987f1256

Download Submit
memory/2352-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2352-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2352-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2352-8-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2352-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2352-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2352-10-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2676-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2676-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2676-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2676-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-18-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads