tofsee | c3c799982a87e0c2f562c5961561e0de269d7ae908c94d7b1483bcd901a8850b

General

Target

05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe
Size

10.5MB
MD5

05757f18c3d66412b7f9e21670f4f7d9
SHA1

14cb0395fb911e24a8342d6d42d9d21cda3c9993
SHA256

c3c799982a87e0c2f562c5961561e0de269d7ae908c94d7b1483bcd901a8850b
SHA512

598b20f77fe089983617e567109b6706ab5e0cf77bbc7279faae30d9dcc0fb48cd93d4ea617d0943fb00d864298bfcf546c19305f71e88719187232e3392d489
SSDEEP

3072:mNoWIXVg044YmyJc/rY/2Woct6Mz+7L00vyLf9nQLWLIMcesvKeHTQzIaH/q99Q8:mNoWwy0jYBkE/vocLz+2QSLIBee8q9N

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\omhoavsh = "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

Processes:

netsh.exe

pid process

2772 netsh.exe

pid	process
2772	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\omhoavsh\ImagePath = "C:\\Windows\\SysWOW64\\omhoavsh\\cakiiyhx.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2664 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

cakiiyhx.exe

pid process

2640 cakiiyhx.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

cakiiyhx.exe

description pid process target process

PID 2640 set thread context of 2664 2640 cakiiyhx.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2628 sc.exe
2796 sc.exe
2720 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2664	svchost.exe

pid	process
2640	cakiiyhx.exe

description	pid	process	target process
PID 2640 set thread context of 2664	2640	cakiiyhx.exe	svchost.exe

pid	process
2628	sc.exe
2796	sc.exe
2720	sc.exe

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

Processes:

netsh.exe

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

Processes:

05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exesc.execakiiyhx.execmd.execmd.exesc.exesc.exenetsh.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cakiiyhx.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.execakiiyhx.exe

description	pid	process	target process
PID 1992 wrote to memory of 2712	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2712	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2712	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2712	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2800	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2800	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2800	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2800	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 1992 wrote to memory of 2796	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2796	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2796	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2796	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2720	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2720	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2720	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2720	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2628	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2628	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2628	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2628	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 1992 wrote to memory of 2772	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	netsh.exe
PID 1992 wrote to memory of 2772	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	netsh.exe
PID 1992 wrote to memory of 2772	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	netsh.exe
PID 1992 wrote to memory of 2772	1992	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	netsh.exe
PID 2640 wrote to memory of 2664	2640	cakiiyhx.exe	svchost.exe
PID 2640 wrote to memory of 2664	2640	cakiiyhx.exe	svchost.exe
PID 2640 wrote to memory of 2664	2640	cakiiyhx.exe	svchost.exe
PID 2640 wrote to memory of 2664	2640	cakiiyhx.exe	svchost.exe
PID 2640 wrote to memory of 2664	2640	cakiiyhx.exe	svchost.exe
PID 2640 wrote to memory of 2664	2640	cakiiyhx.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\omhoavsh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cakiiyhx.exe" C:\Windows\SysWOW64\omhoavsh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create omhoavsh binPath= "C:\Windows\SysWOW64\omhoavsh\cakiiyhx.exe /d\"C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description omhoavsh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start omhoavsh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2628
- 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:2772

C:\Windows\SysWOW64\omhoavsh\cakiiyhx.exe
C:\Windows\SysWOW64\omhoavsh\cakiiyhx.exe /d"C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- 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:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.0MB

MD5
501269ab016ccab753cc21fc38002f10

SHA1
0401a4c62eac2e78fa22c2f087d19c2ae70dc245

SHA256
c5115b8da44355cfb8993ee6c2bb8d4503ed063a612b93369a1a252c3b0e43b2

SHA512
85e145151df1ff4003d68e6dbf91dd2a1ef30cf36b2080736ed6c1a314ecd7fafd1272e83d1a757fa7e77ec08bff57937d7370a4f1c036de5946bb8495df3ea0

Download Submit
memory/1992-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/1992-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2640-16-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2664-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2664-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2664-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2664-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads