tofsee | 378013409ea4fc145dcf70286fc119f61608b49411c7339af5755c09ad764217

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-10-2024 08:00

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General

Target

82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe
Size

12.5MB
MD5

82645945c9bc63d23da8e355065d8169
SHA1

4a487d6edbb8c9fa70a6296726788ff74e6a675c
SHA256

378013409ea4fc145dcf70286fc119f61608b49411c7339af5755c09ad764217
SHA512

5edd520a4d65a133acec61f4c4e074c999c17eaef31e3aedf32ad2e3d0804f80e4a510af86b28906e565934562329d99172b3a438350342bf57f73813557d866
SSDEEP

98304:AWtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0:A

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\rvndptpj = "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
2832	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\rvndptpj\ImagePath = "C:\\Windows\\SysWOW64\\rvndptpj\\gtpfnupz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2972	gtpfnupz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2972 set thread context of 2852	2972	gtpfnupz.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2064	sc.exe
2232	sc.exe
2932	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	gtpfnupz.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	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	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 1876	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	30
PID 1748 wrote to memory of 1876	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	30
PID 1748 wrote to memory of 1876	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	30
PID 1748 wrote to memory of 1876	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	30
PID 1748 wrote to memory of 1956	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	32
PID 1748 wrote to memory of 1956	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	32
PID 1748 wrote to memory of 1956	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	32
PID 1748 wrote to memory of 1956	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	32
PID 1748 wrote to memory of 2064	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	34
PID 1748 wrote to memory of 2064	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	34
PID 1748 wrote to memory of 2064	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	34
PID 1748 wrote to memory of 2064	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	34
PID 1748 wrote to memory of 2232	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	36
PID 1748 wrote to memory of 2232	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	36
PID 1748 wrote to memory of 2232	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	36
PID 1748 wrote to memory of 2232	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	36
PID 1748 wrote to memory of 2932	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	38
PID 1748 wrote to memory of 2932	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	38
PID 1748 wrote to memory of 2932	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	38
PID 1748 wrote to memory of 2932	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	38
PID 1748 wrote to memory of 2832	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	41
PID 1748 wrote to memory of 2832	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	41
PID 1748 wrote to memory of 2832	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	41
PID 1748 wrote to memory of 2832	1748	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	41
PID 2972 wrote to memory of 2852	2972	gtpfnupz.exe	44
PID 2972 wrote to memory of 2852	2972	gtpfnupz.exe	44
PID 2972 wrote to memory of 2852	2972	gtpfnupz.exe	44
PID 2972 wrote to memory of 2852	2972	gtpfnupz.exe	44
PID 2972 wrote to memory of 2852	2972	gtpfnupz.exe	44
PID 2972 wrote to memory of 2852	2972	gtpfnupz.exe	44

C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rvndptpj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gtpfnupz.exe" C:\Windows\SysWOW64\rvndptpj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rvndptpj binPath= "C:\Windows\SysWOW64\rvndptpj\gtpfnupz.exe /d\"C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rvndptpj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rvndptpj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- 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:2832

C:\Windows\SysWOW64\rvndptpj\gtpfnupz.exe
C:\Windows\SysWOW64\rvndptpj\gtpfnupz.exe /d"C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972
- 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:2852

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\gtpfnupz.exe

Filesize
10.9MB

MD5
914942b49cfd2a170abc18f8365b1f73

SHA1
befc4b896afcae8f09774339805eb20d6528959d

SHA256
e2a91d06c981c2df78286c2c3fcb3244f80c0721eacc83e7d09c3a0834c35588

SHA512
17b85e8c340be6565371e6c1bb3558a594f46f9abff69a6684ff550db88e3eee19d0b5e09eeb8c4ede4419af427e5b027fc7d2aa7869a72c250aa588cac54763

Download Submit
memory/1748-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1748-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1748-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1748-8-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/1748-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1748-1-0x0000000002DE0000-0x0000000002EE0000-memory.dmp

Filesize
1024KB

Download
memory/2852-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2972-15-0x0000000000400000-0x0000000002C68000-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