tofsee | 3be7a437a1eb7a1fac8c7b74bffbbf3ed758f0346329fd0ff835b94259f9a79d

Analysis

max time kernel
150s
max time network
148s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 15:52

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General

Target

JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe
Size

12.8MB
MD5

cc3390920c32fc29ee73813ff463177d
SHA1

f72379702f9604c605c150c7a7c56c48be09ae76
SHA256

3be7a437a1eb7a1fac8c7b74bffbbf3ed758f0346329fd0ff835b94259f9a79d
SHA512

b09f38c401d3625b7a22a3cd97d57b9603b48ca942fc6f61335949a6695eb43f84db85714d8bc5dd21467948afa6dd61f40c13c26aa95d158237077ece1de54e
SSDEEP

196608:Dxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx5:

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\glaysxpv = "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
2968	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\glaysxpv\ImagePath = "C:\\Windows\\SysWOW64\\glaysxpv\\jcxjncn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2932	jcxjncn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2880	2932	jcxjncn.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2080	sc.exe
2076	sc.exe
2852	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	svchost.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	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.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	jcxjncn.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2328	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	30
PID 2260 wrote to memory of 2328	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	30
PID 2260 wrote to memory of 2328	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	30
PID 2260 wrote to memory of 2328	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	30
PID 2260 wrote to memory of 2168	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	32
PID 2260 wrote to memory of 2168	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	32
PID 2260 wrote to memory of 2168	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	32
PID 2260 wrote to memory of 2168	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	32
PID 2260 wrote to memory of 2080	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	35
PID 2260 wrote to memory of 2080	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	35
PID 2260 wrote to memory of 2080	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	35
PID 2260 wrote to memory of 2080	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	35
PID 2260 wrote to memory of 2076	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	37
PID 2260 wrote to memory of 2076	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	37
PID 2260 wrote to memory of 2076	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	37
PID 2260 wrote to memory of 2076	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	37
PID 2260 wrote to memory of 2852	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	39
PID 2260 wrote to memory of 2852	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	39
PID 2260 wrote to memory of 2852	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	39
PID 2260 wrote to memory of 2852	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	39
PID 2260 wrote to memory of 2968	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	42
PID 2260 wrote to memory of 2968	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	42
PID 2260 wrote to memory of 2968	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	42
PID 2260 wrote to memory of 2968	2260	JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe	42
PID 2932 wrote to memory of 2880	2932	jcxjncn.exe	44
PID 2932 wrote to memory of 2880	2932	jcxjncn.exe	44
PID 2932 wrote to memory of 2880	2932	jcxjncn.exe	44
PID 2932 wrote to memory of 2880	2932	jcxjncn.exe	44
PID 2932 wrote to memory of 2880	2932	jcxjncn.exe	44
PID 2932 wrote to memory of 2880	2932	jcxjncn.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\glaysxpv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jcxjncn.exe" C:\Windows\SysWOW64\glaysxpv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create glaysxpv binPath= "C:\Windows\SysWOW64\glaysxpv\jcxjncn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description glaysxpv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start glaysxpv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- 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:2968

C:\Windows\SysWOW64\glaysxpv\jcxjncn.exe
C:\Windows\SysWOW64\glaysxpv\jcxjncn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc3390920c32fc29ee73813ff463177d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- 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:2880

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\jcxjncn.exe

Filesize
13.9MB

MD5
d21516bf0876a2ef075fa8f31af854c0

SHA1
bfa00f5645e276c02acc84bb6815027b1e91be66

SHA256
6749ff534030796f00b56eddcc72731ffd874c628f513ea43461f70265b834ff

SHA512
3f574efad18d232b6d0a8817a6a731b4cf8547b33adb40f68edd0e9b3dd6d27b4f7f96376e05d65fb3433a4fa9ea71c1e867c144504c6d533cf697338a602c17

Download Submit
memory/2260-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2260-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2260-6-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download
memory/2260-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2260-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2880-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-13-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2880-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2880-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2880-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2932-14-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads