tofsee | b6cf6e78306d7eb742e4f758aad5eea3248fdd6c6243ee069e90e9c4c64c373e

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-10-2024 15:29

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General

Target

40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe
Size

14.2MB
MD5

40a22b8b25173fab796f01c5f6279cb8
SHA1

2e23ee8c8f97fa749637694b0d00025800157f68
SHA256

b6cf6e78306d7eb742e4f758aad5eea3248fdd6c6243ee069e90e9c4c64c373e
SHA512

b580fee075112912c366c6f8fee223a7afb5d5e78c86989344285df35b5ebc48a072ec3a55ee5713d705dc553e907f14c7b5722e55209c23611077161c883c50
SSDEEP

6144:ArxbJOIoKZyaaUo9t+m7c74mOGjZP6NEpTvBzRxkac1B:MF/ZyaaUk+m7c7ZRiNEpTGa

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\dxpctrfr = "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
2748	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\dxpctrfr\ImagePath = "C:\\Windows\\SysWOW64\\dxpctrfr\\sezwdccq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2796	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	sezwdccq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 2796	2704	sezwdccq.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
864	sc.exe
2688	sc.exe
2996	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	sezwdccq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2980	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	30
PID 1960 wrote to memory of 2980	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	30
PID 1960 wrote to memory of 2980	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	30
PID 1960 wrote to memory of 2980	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	30
PID 1960 wrote to memory of 2376	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2376	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2376	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2376	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	32
PID 1960 wrote to memory of 864	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	34
PID 1960 wrote to memory of 864	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	34
PID 1960 wrote to memory of 864	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	34
PID 1960 wrote to memory of 864	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	34
PID 1960 wrote to memory of 2688	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	36
PID 1960 wrote to memory of 2688	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	36
PID 1960 wrote to memory of 2688	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	36
PID 1960 wrote to memory of 2688	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	36
PID 1960 wrote to memory of 2996	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	38
PID 1960 wrote to memory of 2996	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	38
PID 1960 wrote to memory of 2996	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	38
PID 1960 wrote to memory of 2996	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	38
PID 1960 wrote to memory of 2748	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	41
PID 1960 wrote to memory of 2748	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	41
PID 1960 wrote to memory of 2748	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	41
PID 1960 wrote to memory of 2748	1960	40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe	41
PID 2704 wrote to memory of 2796	2704	sezwdccq.exe	43
PID 2704 wrote to memory of 2796	2704	sezwdccq.exe	43
PID 2704 wrote to memory of 2796	2704	sezwdccq.exe	43
PID 2704 wrote to memory of 2796	2704	sezwdccq.exe	43
PID 2704 wrote to memory of 2796	2704	sezwdccq.exe	43
PID 2704 wrote to memory of 2796	2704	sezwdccq.exe	43

C:\Users\Admin\AppData\Local\Temp\40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dxpctrfr\
  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\sezwdccq.exe" C:\Windows\SysWOW64\dxpctrfr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dxpctrfr binPath= "C:\Windows\SysWOW64\dxpctrfr\sezwdccq.exe /d\"C:\Users\Admin\AppData\Local\Temp\40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dxpctrfr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dxpctrfr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2996
- 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:2748

C:\Windows\SysWOW64\dxpctrfr\sezwdccq.exe
C:\Windows\SysWOW64\dxpctrfr\sezwdccq.exe /d"C:\Users\Admin\AppData\Local\Temp\40a22b8b25173fab796f01c5f6279cb8_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- 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:2796

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\sezwdccq.exe

Filesize
14.3MB

MD5
0ec32711dafb52c242ba333905e71014

SHA1
d387c14b849929c1d954144eb9de8132c7f05d2b

SHA256
368f010ebc402b349414bc9db45343a6dc4d4e1b3d31f8fc279ad3d65154b4ac

SHA512
b76f8ba2bcd3f0fc985e1ba031f0ef3e635b414786ab79759ce217331e6edca6b1155d67a9ac9def379eee4f923a9f2e21af5d93995cab87be6bd41bb168762d

Download Submit
memory/1960-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1960-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1960-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/1960-10-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/1960-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1960-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1960-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2704-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2796-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2796-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2796-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2796-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads