tofsee | cb1cc6f9660fbdd4152c1731e6073cf372ed77d44103f59ea1199f5752c08f58

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 17:06

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General

Target

JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe
Size

12.9MB
MD5

cd7e649bd844b7d663ff413f99f29bd9
SHA1

6a843ea5ec07d9ec2c4fb05e1b552b86840be64c
SHA256

cb1cc6f9660fbdd4152c1731e6073cf372ed77d44103f59ea1199f5752c08f58
SHA512

90df240034bc6e5d81cc4f521e9d675a274f0a965325f63dbefdfc52206057c92edeff6938ba646844855081122b33eabca7a0ad2475ef675276ced76f8bc51c
SSDEEP

49152:nyzapZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ7:nC

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\trjfhmpq = "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
2724	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\trjfhmpq\ImagePath = "C:\\Windows\\SysWOW64\\trjfhmpq\\cynnszfw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1548	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	cynnszfw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 1548	2672	cynnszfw.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2960	sc.exe
1752	sc.exe
2112	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.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	cynnszfw.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2316	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	30
PID 2764 wrote to memory of 2316	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	30
PID 2764 wrote to memory of 2316	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	30
PID 2764 wrote to memory of 2316	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	30
PID 2764 wrote to memory of 2140	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	32
PID 2764 wrote to memory of 2140	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	32
PID 2764 wrote to memory of 2140	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	32
PID 2764 wrote to memory of 2140	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	32
PID 2764 wrote to memory of 2960	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	34
PID 2764 wrote to memory of 2960	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	34
PID 2764 wrote to memory of 2960	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	34
PID 2764 wrote to memory of 2960	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	34
PID 2764 wrote to memory of 1752	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	36
PID 2764 wrote to memory of 1752	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	36
PID 2764 wrote to memory of 1752	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	36
PID 2764 wrote to memory of 1752	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	36
PID 2764 wrote to memory of 2112	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	38
PID 2764 wrote to memory of 2112	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	38
PID 2764 wrote to memory of 2112	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	38
PID 2764 wrote to memory of 2112	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	38
PID 2764 wrote to memory of 2724	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	41
PID 2764 wrote to memory of 2724	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	41
PID 2764 wrote to memory of 2724	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	41
PID 2764 wrote to memory of 2724	2764	JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe	41
PID 2672 wrote to memory of 1548	2672	cynnszfw.exe	43
PID 2672 wrote to memory of 1548	2672	cynnszfw.exe	43
PID 2672 wrote to memory of 1548	2672	cynnszfw.exe	43
PID 2672 wrote to memory of 1548	2672	cynnszfw.exe	43
PID 2672 wrote to memory of 1548	2672	cynnszfw.exe	43
PID 2672 wrote to memory of 1548	2672	cynnszfw.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\trjfhmpq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cynnszfw.exe" C:\Windows\SysWOW64\trjfhmpq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create trjfhmpq binPath= "C:\Windows\SysWOW64\trjfhmpq\cynnszfw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description trjfhmpq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start trjfhmpq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2112
- 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:2724

C:\Windows\SysWOW64\trjfhmpq\cynnszfw.exe
C:\Windows\SysWOW64\trjfhmpq\cynnszfw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd7e649bd844b7d663ff413f99f29bd9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- 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:1548

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\cynnszfw.exe

Filesize
14.7MB

MD5
f740e364600eefdf550445d509d09cc8

SHA1
f2561493a6f35c95583105c3c61fb3fc62070cac

SHA256
0c086d2bf21ffcf43df09cbc4301dcaec618f8d1da9aa9a512ccf62f5441986c

SHA512
c9441e0880facf4bf82d80ebaaf2f429f0e9ef3a23791ec9b28e286a8048dd1eb2c34478f3756f37175b4b650a6630e39f9a19601673be9cbacee0da66dc9774

Download Submit
memory/1548-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1548-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1548-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1548-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1548-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-15-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2764-1-0x00000000017A0000-0x00000000018A0000-memory.dmp

Filesize
1024KB

Download
memory/2764-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2764-4-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2764-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2764-9-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads