tofsee | bf3e87a6467a8aa94b20b0c87eb32114b7249585913ef625d65009f313c247fa

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 14:24

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General

Target

JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe
Size

10.3MB
MD5

ca7622c3853a5ee886d5808b4eea1a7e
SHA1

91727c20f51736a8cfca7405cb5ebf257f53243d
SHA256

bf3e87a6467a8aa94b20b0c87eb32114b7249585913ef625d65009f313c247fa
SHA512

5c1c177cabfd7388e06fa9813c250445f678effb56b1ed61ef6ba87070770f31aa9a83c6ec4d68607fbb8df2c4b7ee3fa1f50e8305af66f5812e88aef5e25197
SSDEEP

12288:oZq+cdlGKSEdlGfxl5V/ZAMbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb:ok9dVcl5V/Z

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\tmcnlhun = "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\tmcnlhun\ImagePath = "C:\\Windows\\SysWOW64\\tmcnlhun\\pjscpsxj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
332	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2948	pjscpsxj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2948 set thread context of 332	2948	pjscpsxj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2244	sc.exe
2184	sc.exe
536	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	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	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.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	pjscpsxj.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2756	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	30
PID 1624 wrote to memory of 2756	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	30
PID 1624 wrote to memory of 2756	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	30
PID 1624 wrote to memory of 2756	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	30
PID 1624 wrote to memory of 576	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	32
PID 1624 wrote to memory of 576	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	32
PID 1624 wrote to memory of 576	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	32
PID 1624 wrote to memory of 576	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	32
PID 1624 wrote to memory of 2244	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	34
PID 1624 wrote to memory of 2244	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	34
PID 1624 wrote to memory of 2244	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	34
PID 1624 wrote to memory of 2244	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	34
PID 1624 wrote to memory of 2184	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	36
PID 1624 wrote to memory of 2184	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	36
PID 1624 wrote to memory of 2184	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	36
PID 1624 wrote to memory of 2184	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	36
PID 1624 wrote to memory of 536	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	38
PID 1624 wrote to memory of 536	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	38
PID 1624 wrote to memory of 536	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	38
PID 1624 wrote to memory of 536	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	38
PID 1624 wrote to memory of 2968	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	41
PID 1624 wrote to memory of 2968	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	41
PID 1624 wrote to memory of 2968	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	41
PID 1624 wrote to memory of 2968	1624	JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe	41
PID 2948 wrote to memory of 332	2948	pjscpsxj.exe	43
PID 2948 wrote to memory of 332	2948	pjscpsxj.exe	43
PID 2948 wrote to memory of 332	2948	pjscpsxj.exe	43
PID 2948 wrote to memory of 332	2948	pjscpsxj.exe	43
PID 2948 wrote to memory of 332	2948	pjscpsxj.exe	43
PID 2948 wrote to memory of 332	2948	pjscpsxj.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tmcnlhun\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pjscpsxj.exe" C:\Windows\SysWOW64\tmcnlhun\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tmcnlhun binPath= "C:\Windows\SysWOW64\tmcnlhun\pjscpsxj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tmcnlhun "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tmcnlhun
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:536
- 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\tmcnlhun\pjscpsxj.exe
C:\Windows\SysWOW64\tmcnlhun\pjscpsxj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ca7622c3853a5ee886d5808b4eea1a7e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2948
- 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:332

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\pjscpsxj.exe

Filesize
12.5MB

MD5
207add61e4f9ef65223120f71d6c226a

SHA1
67349e356a0824fb5f8c485547b5b59f65acac5d

SHA256
d01d622f2ced0e1a3c5d08458a42f6253b6b4d81fb1da87f676bf8f51f1879c3

SHA512
b30aee3cd6b6a0d2c0ab203c02250a5e1b60f5472f69d83da390f97655d2c2cdcd965787bdd5eeeff9339f71b5c9048251e0217bfa998f2782301d706124ef09

Download Submit
memory/332-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/332-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/332-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/332-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/332-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1624-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1624-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1624-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1624-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1624-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1624-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/2948-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads