tofsee | d7121e733b9db0b3a06161df0104e10d9155df0f3cce1a54e52c386524bcf201

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 05:46

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General

Target

JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe
Size

13.0MB
MD5

50f5de9caf57d2964071e9913072ce45
SHA1

0557009ed61b02e6ab9b83ff752229a754f67aa9
SHA256

d7121e733b9db0b3a06161df0104e10d9155df0f3cce1a54e52c386524bcf201
SHA512

bbbf7cdef48c43492d5c2091a3eda5c5b9ab437009613323d9f7482e4764d2664c7b0380ae8985c1de4eca0a1fb3b4f3d3da34bb9ff21b2f117d0e79e15b88a3
SSDEEP

49152:hOFK1llllllllllllllllllllllllllllllllllllllllllllllllllllllllll1:9

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\sixntqsq = "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
2712	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\sixntqsq\ImagePath = "C:\\Windows\\SysWOW64\\sixntqsq\\exiyjgzs.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2904	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	exiyjgzs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 2904	2576	exiyjgzs.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2548	sc.exe
2976	sc.exe
2592	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.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	exiyjgzs.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2700	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	31
PID 2756 wrote to memory of 2700	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	31
PID 2756 wrote to memory of 2700	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	31
PID 2756 wrote to memory of 2700	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	31
PID 2756 wrote to memory of 2660	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	33
PID 2756 wrote to memory of 2660	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	33
PID 2756 wrote to memory of 2660	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	33
PID 2756 wrote to memory of 2660	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	33
PID 2756 wrote to memory of 2976	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	35
PID 2756 wrote to memory of 2976	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	35
PID 2756 wrote to memory of 2976	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	35
PID 2756 wrote to memory of 2976	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	35
PID 2756 wrote to memory of 2592	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	37
PID 2756 wrote to memory of 2592	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	37
PID 2756 wrote to memory of 2592	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	37
PID 2756 wrote to memory of 2592	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	37
PID 2756 wrote to memory of 2548	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	39
PID 2756 wrote to memory of 2548	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	39
PID 2756 wrote to memory of 2548	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	39
PID 2756 wrote to memory of 2548	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	39
PID 2756 wrote to memory of 2712	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	42
PID 2756 wrote to memory of 2712	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	42
PID 2756 wrote to memory of 2712	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	42
PID 2756 wrote to memory of 2712	2756	JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe	42
PID 2576 wrote to memory of 2904	2576	exiyjgzs.exe	44
PID 2576 wrote to memory of 2904	2576	exiyjgzs.exe	44
PID 2576 wrote to memory of 2904	2576	exiyjgzs.exe	44
PID 2576 wrote to memory of 2904	2576	exiyjgzs.exe	44
PID 2576 wrote to memory of 2904	2576	exiyjgzs.exe	44
PID 2576 wrote to memory of 2904	2576	exiyjgzs.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sixntqsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\exiyjgzs.exe" C:\Windows\SysWOW64\sixntqsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sixntqsq binPath= "C:\Windows\SysWOW64\sixntqsq\exiyjgzs.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sixntqsq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sixntqsq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- 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:2712

C:\Windows\SysWOW64\sixntqsq\exiyjgzs.exe
C:\Windows\SysWOW64\sixntqsq\exiyjgzs.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50f5de9caf57d2964071e9913072ce45.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- 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:2904

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\exiyjgzs.exe

Filesize
13.5MB

MD5
37afcb9f9d0fdc1e2bbf8bfb00df3e1b

SHA1
a131452a634fcb3f71027066203b9a132c76151f

SHA256
56737bb2595282a8acd421b7c5f74a37155786abaa966c84e50c5ed51bdd5040

SHA512
10417f6819b9e2c53203c86cae9d8cc6151d850b4e8ab71aa2e10d9365a6ea451bf701e8dbf7f086db7712334d66b92c38195b7d91435e9e2f209f47f1c85253

Download Submit
memory/2576-17-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2756-1-0x0000000001840000-0x0000000001940000-memory.dmp

Filesize
1024KB

Download
memory/2756-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2756-4-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2756-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2756-9-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2904-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2904-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2904-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2904-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2904-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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