tofsee | 402a3777f66fdbaeb66e90ed00599e675cafc44c2c078d58fee1f8fcbecc5d18

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 00:11

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General

Target

JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe
Size

11.5MB
MD5

b44a3920729601ec0f77816cf7a82a59
SHA1

e72af38f7b6f03d9aae89e5f6be27f3fb48d9b7e
SHA256

402a3777f66fdbaeb66e90ed00599e675cafc44c2c078d58fee1f8fcbecc5d18
SHA512

86de0528f5cef140f79e4098739b3d5aae084878db66d39e83100fbcafbf2b9f681f7c9221dcc06152d7db9e00b69daaf5480bd34b85769d14430d6588539a09
SSDEEP

49152:DkHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHn:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\wiuakkqp = "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\wiuakkqp\ImagePath = "C:\\Windows\\SysWOW64\\wiuakkqp\\rbgtavuj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3068	rbgtavuj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2944	3068	rbgtavuj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2316	sc.exe
2936	sc.exe
2924	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rbgtavuj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 2428	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	30
PID 1676 wrote to memory of 2428	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	30
PID 1676 wrote to memory of 2428	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	30
PID 1676 wrote to memory of 2428	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	30
PID 1676 wrote to memory of 2880	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	32
PID 1676 wrote to memory of 2880	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	32
PID 1676 wrote to memory of 2880	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	32
PID 1676 wrote to memory of 2880	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	32
PID 1676 wrote to memory of 2316	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	34
PID 1676 wrote to memory of 2316	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	34
PID 1676 wrote to memory of 2316	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	34
PID 1676 wrote to memory of 2316	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	34
PID 1676 wrote to memory of 2936	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	36
PID 1676 wrote to memory of 2936	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	36
PID 1676 wrote to memory of 2936	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	36
PID 1676 wrote to memory of 2936	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	36
PID 1676 wrote to memory of 2924	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	38
PID 1676 wrote to memory of 2924	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	38
PID 1676 wrote to memory of 2924	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	38
PID 1676 wrote to memory of 2924	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	38
PID 1676 wrote to memory of 2696	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	41
PID 1676 wrote to memory of 2696	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	41
PID 1676 wrote to memory of 2696	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	41
PID 1676 wrote to memory of 2696	1676	JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe	41
PID 3068 wrote to memory of 2944	3068	rbgtavuj.exe	43
PID 3068 wrote to memory of 2944	3068	rbgtavuj.exe	43
PID 3068 wrote to memory of 2944	3068	rbgtavuj.exe	43
PID 3068 wrote to memory of 2944	3068	rbgtavuj.exe	43
PID 3068 wrote to memory of 2944	3068	rbgtavuj.exe	43
PID 3068 wrote to memory of 2944	3068	rbgtavuj.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wiuakkqp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rbgtavuj.exe" C:\Windows\SysWOW64\wiuakkqp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wiuakkqp binPath= "C:\Windows\SysWOW64\wiuakkqp\rbgtavuj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wiuakkqp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wiuakkqp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- 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\wiuakkqp\rbgtavuj.exe
C:\Windows\SysWOW64\wiuakkqp\rbgtavuj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b44a3920729601ec0f77816cf7a82a59.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- 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:2944

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\rbgtavuj.exe

Filesize
13.3MB

MD5
7f02496029f7c1b725288327e5cdd8b1

SHA1
8190ab2563d9b337280f222e5f844521d44996c4

SHA256
afee620edc1220fc8bd1b1c1f5ae08f85b7bc56dda0aa462bed76f57ef4fc20b

SHA512
01f37b0e880915909629c7f16ea12b01de2db5be71263f09680bd57d33855518555dad683ff660e485371068373a2299b179c96bd39b726bdf152769a1654fae

Download Submit
memory/1676-1-0x00000000008F0000-0x00000000009F0000-memory.dmp

Filesize
1024KB

Download
memory/1676-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1676-4-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1676-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1676-9-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2944-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3068-17-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads