tofsee | 12a920c32a2bf8d2dcd2e7539ca614e6535563acd22dea2a49feb10f8b430e40

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 11:52

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General

Target

eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe
Size

10.6MB
MD5

eea0d82d85f2010a0d24f75acb725238
SHA1

ddb1710404535d2f139a3edc90c1816034bc78f8
SHA256

12a920c32a2bf8d2dcd2e7539ca614e6535563acd22dea2a49feb10f8b430e40
SHA512

54aa21bec6e22558a51c061ef0c0bf4c10c80008d009701a18fe6e733d8b278d7af8e7c489ce95dc36de04ee5c1dc8366a9217ade58ec51a73cf358074cdbaf5
SSDEEP

24576:Em1111111111111111111111111111111111111111111111111111111111111f:

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\kciloaez = "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
2796	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\kciloaez\ImagePath = "C:\\Windows\\SysWOW64\\kciloaez\\fowunpss.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2172	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2608	fowunpss.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2608 set thread context of 2172	2608	fowunpss.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2708	sc.exe
2752	sc.exe
2724	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fowunpss.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2836	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2836	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2836	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2836	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	30
PID 2220 wrote to memory of 2828	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	32
PID 2220 wrote to memory of 2828	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	32
PID 2220 wrote to memory of 2828	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	32
PID 2220 wrote to memory of 2828	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	32
PID 2220 wrote to memory of 2708	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	34
PID 2220 wrote to memory of 2708	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	34
PID 2220 wrote to memory of 2708	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	34
PID 2220 wrote to memory of 2708	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	34
PID 2220 wrote to memory of 2752	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	36
PID 2220 wrote to memory of 2752	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	36
PID 2220 wrote to memory of 2752	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	36
PID 2220 wrote to memory of 2752	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	36
PID 2220 wrote to memory of 2724	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	38
PID 2220 wrote to memory of 2724	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	38
PID 2220 wrote to memory of 2724	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	38
PID 2220 wrote to memory of 2724	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	38
PID 2220 wrote to memory of 2796	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	41
PID 2220 wrote to memory of 2796	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	41
PID 2220 wrote to memory of 2796	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	41
PID 2220 wrote to memory of 2796	2220	eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe	41
PID 2608 wrote to memory of 2172	2608	fowunpss.exe	43
PID 2608 wrote to memory of 2172	2608	fowunpss.exe	43
PID 2608 wrote to memory of 2172	2608	fowunpss.exe	43
PID 2608 wrote to memory of 2172	2608	fowunpss.exe	43
PID 2608 wrote to memory of 2172	2608	fowunpss.exe	43
PID 2608 wrote to memory of 2172	2608	fowunpss.exe	43

C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kciloaez\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fowunpss.exe" C:\Windows\SysWOW64\kciloaez\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kciloaez binPath= "C:\Windows\SysWOW64\kciloaez\fowunpss.exe /d\"C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kciloaez "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kciloaez
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- 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:2796

C:\Windows\SysWOW64\kciloaez\fowunpss.exe
C:\Windows\SysWOW64\kciloaez\fowunpss.exe /d"C:\Users\Admin\AppData\Local\Temp\eea0d82d85f2010a0d24f75acb725238_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608
- 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:2172

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\fowunpss.exe

Filesize
12.7MB

MD5
51b92927bcfcd1988f51ca69520b89fe

SHA1
e17a5cb4df5ba7ec57fae95e2f3039fea83e6293

SHA256
f2e1204eaccc1ab84fe2e659c8fbfafff6758d1117d6642da25d3394d10b8064

SHA512
93770c6b09ab895bd744caef961c418cc9009ffa08fb53c02108face1fc3c00f2009ce6d4aeec2548e572123ecb2b18c374a500c200c001b6aff9986e79dc3a7

Download Submit
memory/2172-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2172-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2172-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2172-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2172-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2220-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2220-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2220-8-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download
memory/2220-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2608-17-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads