tofsee | 8791519374a3ea6c961cc5bb0342e34b25b4963ff4245ba224319cb93062bcd8

Analysis

max time kernel
147s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 20:07

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General

Target

b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe
Size

14.1MB
MD5

b0a59d0a8d15871ccb8be92c8d0f67f0
SHA1

752ce7ccfee2b5de80ac420ad3df76a6b5943c84
SHA256

8791519374a3ea6c961cc5bb0342e34b25b4963ff4245ba224319cb93062bcd8
SHA512

dd0d8e8894423e1660e5f1a7e523192ddbf9e88f7a456a5a1547327fef792b1b086fccadead2f4d33d98a509b19de9feb5f79b24d822c6da78d0a04a832f5282
SSDEEP

98304:9uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuue:

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

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\vmkjgfuq = "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
2632	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\vmkjgfuq\ImagePath = "C:\\Windows\\SysWOW64\\vmkjgfuq\\kwiqqbqy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2072	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1224	kwiqqbqy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1224 set thread context of 2072	1224	kwiqqbqy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2820	sc.exe
2708	sc.exe
2604	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	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.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	kwiqqbqy.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	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 3028 wrote to memory of 2180	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	30
PID 3028 wrote to memory of 2180	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	30
PID 3028 wrote to memory of 2180	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	30
PID 3028 wrote to memory of 2180	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	30
PID 3028 wrote to memory of 2688	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	32
PID 3028 wrote to memory of 2688	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	32
PID 3028 wrote to memory of 2688	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	32
PID 3028 wrote to memory of 2688	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	32
PID 3028 wrote to memory of 2820	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	34
PID 3028 wrote to memory of 2820	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	34
PID 3028 wrote to memory of 2820	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	34
PID 3028 wrote to memory of 2820	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	34
PID 3028 wrote to memory of 2708	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	36
PID 3028 wrote to memory of 2708	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	36
PID 3028 wrote to memory of 2708	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	36
PID 3028 wrote to memory of 2708	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	36
PID 3028 wrote to memory of 2604	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	38
PID 3028 wrote to memory of 2604	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	38
PID 3028 wrote to memory of 2604	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	38
PID 3028 wrote to memory of 2604	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	38
PID 3028 wrote to memory of 2632	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	41
PID 3028 wrote to memory of 2632	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	41
PID 3028 wrote to memory of 2632	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	41
PID 3028 wrote to memory of 2632	3028	b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe	41
PID 1224 wrote to memory of 2072	1224	kwiqqbqy.exe	43
PID 1224 wrote to memory of 2072	1224	kwiqqbqy.exe	43
PID 1224 wrote to memory of 2072	1224	kwiqqbqy.exe	43
PID 1224 wrote to memory of 2072	1224	kwiqqbqy.exe	43
PID 1224 wrote to memory of 2072	1224	kwiqqbqy.exe	43
PID 1224 wrote to memory of 2072	1224	kwiqqbqy.exe	43

C:\Users\Admin\AppData\Local\Temp\b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vmkjgfuq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwiqqbqy.exe" C:\Windows\SysWOW64\vmkjgfuq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vmkjgfuq binPath= "C:\Windows\SysWOW64\vmkjgfuq\kwiqqbqy.exe /d\"C:\Users\Admin\AppData\Local\Temp\b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vmkjgfuq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vmkjgfuq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- 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:2632

C:\Windows\SysWOW64\vmkjgfuq\kwiqqbqy.exe
C:\Windows\SysWOW64\vmkjgfuq\kwiqqbqy.exe /d"C:\Users\Admin\AppData\Local\Temp\b0a59d0a8d15871ccb8be92c8d0f67f0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1224
- 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:2072

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\kwiqqbqy.exe

Filesize
11.2MB

MD5
2cbccfd4af91b4764fd1d8d7724ac4c8

SHA1
c493aa0383637aef29352449658cb7d9e9d0a563

SHA256
95e1ff2b7c2a7363c12d05401d6e9922dc648b4e391b64453e754249b738bbb6

SHA512
43158b15cc5480bf37ed83502c3110819f818cac262f36e47b2bcc3cd1ffa4d9d5e5bd2b7f0d7f634439e1ae602f549cd1dd01424b6e9e2f8f79ca8ba82843b7

Download Submit
memory/1224-16-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2072-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2072-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2072-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2072-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2072-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3028-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3028-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3028-9-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/3028-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/3028-2-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads