tofsee | 31503bdb8b3ee9da6bb91ada24ebe560d7e5edd27b9f01c53f0afce48ceedd55

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 10:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_e21181a90f076b9e930a523bce604588.exe
Size

12.0MB
MD5

e21181a90f076b9e930a523bce604588
SHA1

240a200e30ad73dbe737ef12ec5fb2863603b3ad
SHA256

31503bdb8b3ee9da6bb91ada24ebe560d7e5edd27b9f01c53f0afce48ceedd55
SHA512

32d458f689fe9f5e32c06e5d0308c6d7d0f4616747f6043458548615fc780014bf031e327e89a0a16fd013ebee0fe76fb2afbbc9c75d1a87f01c673db555ff4c
SSDEEP

12288:lZv3F8h86NMcoGuc3FXE4WrIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIr:lp3F8Au3FPW

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\kzhxpcyd = "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
2704	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\kzhxpcyd\ImagePath = "C:\\Windows\\SysWOW64\\kzhxpcyd\\uoxhuxco.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2692	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1992	uoxhuxco.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 2692	1992	uoxhuxco.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2532	sc.exe
2096	sc.exe
1752	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uoxhuxco.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2316	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	30
PID 2356 wrote to memory of 2316	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	30
PID 2356 wrote to memory of 2316	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	30
PID 2356 wrote to memory of 2316	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	30
PID 2356 wrote to memory of 1076	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	32
PID 2356 wrote to memory of 1076	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	32
PID 2356 wrote to memory of 1076	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	32
PID 2356 wrote to memory of 1076	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	32
PID 2356 wrote to memory of 2096	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	34
PID 2356 wrote to memory of 2096	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	34
PID 2356 wrote to memory of 2096	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	34
PID 2356 wrote to memory of 2096	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	34
PID 2356 wrote to memory of 1752	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	36
PID 2356 wrote to memory of 1752	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	36
PID 2356 wrote to memory of 1752	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	36
PID 2356 wrote to memory of 1752	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	36
PID 2356 wrote to memory of 2532	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	38
PID 2356 wrote to memory of 2532	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	38
PID 2356 wrote to memory of 2532	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	38
PID 2356 wrote to memory of 2532	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	38
PID 2356 wrote to memory of 2704	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	41
PID 2356 wrote to memory of 2704	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	41
PID 2356 wrote to memory of 2704	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	41
PID 2356 wrote to memory of 2704	2356	JaffaCakes118_e21181a90f076b9e930a523bce604588.exe	41
PID 1992 wrote to memory of 2692	1992	uoxhuxco.exe	43
PID 1992 wrote to memory of 2692	1992	uoxhuxco.exe	43
PID 1992 wrote to memory of 2692	1992	uoxhuxco.exe	43
PID 1992 wrote to memory of 2692	1992	uoxhuxco.exe	43
PID 1992 wrote to memory of 2692	1992	uoxhuxco.exe	43
PID 1992 wrote to memory of 2692	1992	uoxhuxco.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e21181a90f076b9e930a523bce604588.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e21181a90f076b9e930a523bce604588.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kzhxpcyd\
  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\uoxhuxco.exe" C:\Windows\SysWOW64\kzhxpcyd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kzhxpcyd binPath= "C:\Windows\SysWOW64\kzhxpcyd\uoxhuxco.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e21181a90f076b9e930a523bce604588.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kzhxpcyd "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 kzhxpcyd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2532
- 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:2704

C:\Windows\SysWOW64\kzhxpcyd\uoxhuxco.exe
C:\Windows\SysWOW64\kzhxpcyd\uoxhuxco.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e21181a90f076b9e930a523bce604588.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- 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:2692

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\uoxhuxco.exe

Filesize
11.4MB

MD5
f9beaeb92efe082b2dfca20f48b4a4d0

SHA1
b12cd104eefc0f46748446a29f62a28ad7bb27ed

SHA256
3a678aa2391e7cbdf19b643d863e3656c1e9f4f758bb4ea8bed9c05a92409114

SHA512
e6b051d6e032e316f8f8c17ce4507a8e8b9966eebe7adf2331ca26457d2fbd007cd50221000a8079b2d88556fa588a10acfb3710e2e62349969725781a2f5e29

Download Submit
memory/1992-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2356-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2356-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2356-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2356-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2356-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2356-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2692-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2692-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2692-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2692-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads