tofsee | 2be4edefee6dc023948608c38015181e4e69bcf4b0ff420777b0ffefeeb26d6b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
14-09-2024 10:45

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General

Target

e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe
Size

14.4MB
MD5

e007ae38e3bdc05af62cfc5d5aba87cd
SHA1

31472beeea454d34bd4be93466e231cf71c6b5ce
SHA256

2be4edefee6dc023948608c38015181e4e69bcf4b0ff420777b0ffefeeb26d6b
SHA512

f6736b45012b5c46cce0e92699100285776c6aebad99f9fac9e5fcf18f644cb6ec250c3fb4d55581672ee46e2bf9f4c19dde38f320e0f4d5586c8a5f8b7d027c
SSDEEP

49152:EwAKFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFr:Ew

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\nfgsqfqb = "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
3028	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\nfgsqfqb\ImagePath = "C:\\Windows\\SysWOW64\\nfgsqfqb\\kwdxcivd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1576	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	kwdxcivd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 1576	2620	kwdxcivd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2580	sc.exe
2668	sc.exe
2568	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	kwdxcivd.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	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	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2708	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	30
PID 2420 wrote to memory of 2708	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	30
PID 2420 wrote to memory of 2708	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	30
PID 2420 wrote to memory of 2708	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	30
PID 2420 wrote to memory of 2824	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	32
PID 2420 wrote to memory of 2824	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	32
PID 2420 wrote to memory of 2824	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	32
PID 2420 wrote to memory of 2824	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	32
PID 2420 wrote to memory of 2580	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	34
PID 2420 wrote to memory of 2580	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	34
PID 2420 wrote to memory of 2580	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	34
PID 2420 wrote to memory of 2580	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	34
PID 2420 wrote to memory of 2668	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	36
PID 2420 wrote to memory of 2668	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	36
PID 2420 wrote to memory of 2668	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	36
PID 2420 wrote to memory of 2668	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	36
PID 2420 wrote to memory of 2568	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	38
PID 2420 wrote to memory of 2568	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	38
PID 2420 wrote to memory of 2568	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	38
PID 2420 wrote to memory of 2568	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	38
PID 2420 wrote to memory of 3028	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	41
PID 2420 wrote to memory of 3028	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	41
PID 2420 wrote to memory of 3028	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	41
PID 2420 wrote to memory of 3028	2420	e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe	41
PID 2620 wrote to memory of 1576	2620	kwdxcivd.exe	43
PID 2620 wrote to memory of 1576	2620	kwdxcivd.exe	43
PID 2620 wrote to memory of 1576	2620	kwdxcivd.exe	43
PID 2620 wrote to memory of 1576	2620	kwdxcivd.exe	43
PID 2620 wrote to memory of 1576	2620	kwdxcivd.exe	43
PID 2620 wrote to memory of 1576	2620	kwdxcivd.exe	43

C:\Users\Admin\AppData\Local\Temp\e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nfgsqfqb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwdxcivd.exe" C:\Windows\SysWOW64\nfgsqfqb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nfgsqfqb binPath= "C:\Windows\SysWOW64\nfgsqfqb\kwdxcivd.exe /d\"C:\Users\Admin\AppData\Local\Temp\e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nfgsqfqb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nfgsqfqb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2568
- 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:3028

C:\Windows\SysWOW64\nfgsqfqb\kwdxcivd.exe
C:\Windows\SysWOW64\nfgsqfqb\kwdxcivd.exe /d"C:\Users\Admin\AppData\Local\Temp\e007ae38e3bdc05af62cfc5d5aba87cd_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2620
- 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:1576

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\kwdxcivd.exe

Filesize
12.6MB

MD5
5c8f76e17578f19366c33146048c7e38

SHA1
33308900d7bb789043977257f3b5c68b69653ebc

SHA256
756cdeae6fe10b495670c9f56828616388867494b32ecb1b8ceb67619a7219bf

SHA512
735c6df21430bcdadf2cd930fe56ed233470b239cd1a0d8d3c76f4a5ecea6db26fb5ba58876941b253f36d06c8de8c9233520aa6cd29b3ef7fa28788cb465ff4

Download Submit
memory/1576-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1576-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1576-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1576-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1576-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2420-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2420-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2420-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2420-1-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

Filesize
1024KB

Download
memory/2620-17-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads