tofsee | b9c281efac7ae522f39d90a8304f29b440cdeae15c1eb53b8b1ede94f9dd19d8

General

Target

5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe
Size

263KB
MD5

5b73118f049b003bc2ba02bc0946d829
SHA1

75a8c8231ca59779f8a6ca3e2fe7d9859be5cf0e
SHA256

b9c281efac7ae522f39d90a8304f29b440cdeae15c1eb53b8b1ede94f9dd19d8
SHA512

2b68aba1d81d4d1764507a2dd1e23fa19f96e768ee03e158b95ca4120f73bfdcd5ac67ead2dacc7524f9d3b7bb12af2d3dbb24469f0b5964fb91706220cb98c8
SSDEEP

6144:tQYgph/0NobY70xfKTm9qOYrWkRALgbWMxC7:t1Kd0NobY70xqm9qOuRNWkC

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\eoyboqqx = "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

2860 netsh.exe

pid	process
2860	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\eoyboqqx\ImagePath = "C:\\Windows\\SysWOW64\\eoyboqqx\\vhczgfft.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2980 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

vhczgfft.exe

pid process

2828 vhczgfft.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

vhczgfft.exe

description pid process target process

PID 2828 set thread context of 2980 2828 vhczgfft.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

2256 sc.exe
1236 sc.exe
1616 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2980	svchost.exe

pid	process
2828	vhczgfft.exe

description	pid	process	target process
PID 2828 set thread context of 2980	2828	vhczgfft.exe	svchost.exe

pid	process
2256	sc.exe
1236	sc.exe
1616	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:

netsh.exesvchost.exesc.exesc.execmd.exesc.exevhczgfft.exe5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.execmd.exe

description	ioc	process
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	vhczgfft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exevhczgfft.exe

description	pid	process	target process
PID 2540 wrote to memory of 2108	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 2108	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 2108	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 2108	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 2404	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 2404	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 2404	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 2404	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	cmd.exe
PID 2540 wrote to memory of 1616	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 1616	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 1616	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 1616	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 2256	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 2256	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 2256	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 2256	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 1236	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 1236	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 1236	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 1236	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	sc.exe
PID 2540 wrote to memory of 2860	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	netsh.exe
PID 2540 wrote to memory of 2860	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	netsh.exe
PID 2540 wrote to memory of 2860	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	netsh.exe
PID 2540 wrote to memory of 2860	2540	5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe	netsh.exe
PID 2828 wrote to memory of 2980	2828	vhczgfft.exe	svchost.exe
PID 2828 wrote to memory of 2980	2828	vhczgfft.exe	svchost.exe
PID 2828 wrote to memory of 2980	2828	vhczgfft.exe	svchost.exe
PID 2828 wrote to memory of 2980	2828	vhczgfft.exe	svchost.exe
PID 2828 wrote to memory of 2980	2828	vhczgfft.exe	svchost.exe
PID 2828 wrote to memory of 2980	2828	vhczgfft.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eoyboqqx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vhczgfft.exe" C:\Windows\SysWOW64\eoyboqqx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eoyboqqx binPath= "C:\Windows\SysWOW64\eoyboqqx\vhczgfft.exe /d\"C:\Users\Admin\AppData\Local\Temp\5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eoyboqqx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eoyboqqx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1236
- 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:2860

C:\Windows\SysWOW64\eoyboqqx\vhczgfft.exe
C:\Windows\SysWOW64\eoyboqqx\vhczgfft.exe /d"C:\Users\Admin\AppData\Local\Temp\5b73118f049b003bc2ba02bc0946d829_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2980

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.9MB

MD5
4538e9c1511ba7c40ac64844fb497c10

SHA1
0593575f9247e96ed1a0feaa9424ea3593675cb0

SHA256
d6d51f8fedd732bd94925e22da3b71f9d455337ad3ffa63872cfb2f691a06687

SHA512
ca4ee0f3b8d8240dfc5269e328d6d821ba440fb3c9c6b18041db9ab595a05e75742eb07bfd80a9f946b50937227b100b37ec50b5eb5df6c2701404da483e1508

Download Submit
memory/2540-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2540-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2540-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

Filesize
1024KB

Download
memory/2540-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2540-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2540-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2828-17-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2980-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2980-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2980-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2980-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads