tofsee | 63cdf16cd0b3d4c7b4b95be5afaa22532bc162806cc222f7e928d3a614d14c76

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 18:32

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General

Target

9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe
Size

11.2MB
MD5

9d352b6068831670fae5abf011f496ed
SHA1

e5c0461326655b1c828ce17d694dc21fc23fdc3c
SHA256

63cdf16cd0b3d4c7b4b95be5afaa22532bc162806cc222f7e928d3a614d14c76
SHA512

b886596e31eb5549658a239d3370caa8acacfbf1bf57815853c1fbab513f80de8dd75bcf2b1f189e5697ccbd36fa8d9f7d925c13c91af4c7f576edb930c0c2a4
SSDEEP

98304:nn77777777777777777777777777777777777777777777777777777777777777:n

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\atoiucnz = "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
2700	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\atoiucnz\ImagePath = "C:\\Windows\\SysWOW64\\atoiucnz\\mkzlfbmc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2964	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	mkzlfbmc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 2964	2792	mkzlfbmc.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2304	sc.exe
2688	sc.exe
2944	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mkzlfbmc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1896	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	31
PID 1720 wrote to memory of 1896	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	31
PID 1720 wrote to memory of 1896	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	31
PID 1720 wrote to memory of 1896	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	31
PID 1720 wrote to memory of 2476	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2476	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2476	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2476	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2944	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	35
PID 1720 wrote to memory of 2944	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	35
PID 1720 wrote to memory of 2944	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	35
PID 1720 wrote to memory of 2944	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	35
PID 1720 wrote to memory of 2304	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	37
PID 1720 wrote to memory of 2304	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	37
PID 1720 wrote to memory of 2304	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	37
PID 1720 wrote to memory of 2304	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	37
PID 1720 wrote to memory of 2688	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	39
PID 1720 wrote to memory of 2688	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	39
PID 1720 wrote to memory of 2688	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	39
PID 1720 wrote to memory of 2688	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	39
PID 2792 wrote to memory of 2964	2792	mkzlfbmc.exe	42
PID 2792 wrote to memory of 2964	2792	mkzlfbmc.exe	42
PID 2792 wrote to memory of 2964	2792	mkzlfbmc.exe	42
PID 2792 wrote to memory of 2964	2792	mkzlfbmc.exe	42
PID 2792 wrote to memory of 2964	2792	mkzlfbmc.exe	42
PID 2792 wrote to memory of 2964	2792	mkzlfbmc.exe	42
PID 1720 wrote to memory of 2700	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	43
PID 1720 wrote to memory of 2700	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	43
PID 1720 wrote to memory of 2700	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	43
PID 1720 wrote to memory of 2700	1720	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	43

C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\atoiucnz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mkzlfbmc.exe" C:\Windows\SysWOW64\atoiucnz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create atoiucnz binPath= "C:\Windows\SysWOW64\atoiucnz\mkzlfbmc.exe /d\"C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description atoiucnz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start atoiucnz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:2700

C:\Windows\SysWOW64\atoiucnz\mkzlfbmc.exe
C:\Windows\SysWOW64\atoiucnz\mkzlfbmc.exe /d"C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:2964

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\mkzlfbmc.exe

Filesize
10.0MB

MD5
19b681b073c83ef17fc6567668cf65c1

SHA1
bd8d5477846c83b0c3ee62b8f97ae2a14069a7fd

SHA256
9ee0eb007fc6c6f020a72a3d83c50f7d8a37e236fda6f6436f89f17fbbf34fa5

SHA512
7f8a0e47f7b238ec68c0458aedfcfe5bf418b7320d2c0c1dbfb23587628d3f82871400cbc96de43cb65758653e739abd1a77e1c7af572a2205d215c95b1393e8

Download Submit
memory/1720-15-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/1720-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1720-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/1720-14-0x0000000000400000-0x000000000050F000-memory.dmp

Filesize
1.1MB

Download
memory/1720-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1720-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2792-13-0x0000000000400000-0x000000000050F000-memory.dmp

Filesize
1.1MB

Download
memory/2964-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2964-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads