tofsee | a8f1e1a6df372687c42edc522fc4c6b2f068bd05e8e5f56f92ffc037dd64e2d8

General

Target

dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe
Size

12.3MB
MD5

dd2de935e742c9e508444e1cf0164886
SHA1

f5c318ac0a60c5c468f31855c5fc34b9a888b790
SHA256

a8f1e1a6df372687c42edc522fc4c6b2f068bd05e8e5f56f92ffc037dd64e2d8
SHA512

c3aae71923e52e48e6e07d8a1eac1a7449cf20661f4836281e04c025c8db6a1046df6f4c2ea58f31b16cd860f6b02cd4367088f01280a38865eb7ac336879440
SSDEEP

393216:odQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ/:

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\ytxgyrlo = "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

2740 netsh.exe

pid	process
2740	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\ytxgyrlo\ImagePath = "C:\\Windows\\SysWOW64\\ytxgyrlo\\lomhbisc.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2960 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

lomhbisc.exe

pid process

2860 lomhbisc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

lomhbisc.exe

description pid process target process

PID 2860 set thread context of 2960 2860 lomhbisc.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

2252 sc.exe
2720 sc.exe
2824 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2960	svchost.exe

pid	process
2860	lomhbisc.exe

description	pid	process	target process
PID 2860 set thread context of 2960	2860	lomhbisc.exe	svchost.exe

pid	process
2252	sc.exe
2720	sc.exe
2824	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 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

Processes:

dd2de935e742c9e508444e1cf0164886_JaffaCakes118.execmd.exesc.exenetsh.execmd.exesc.exesc.exelomhbisc.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.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	netsh.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	lomhbisc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exelomhbisc.exe

description	pid	process	target process
PID 1704 wrote to memory of 2388	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2388	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2388	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2388	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2028	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2028	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2028	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2028	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	cmd.exe
PID 1704 wrote to memory of 2252	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2252	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2252	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2252	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2720	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2720	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2720	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2720	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2824	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2824	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2824	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2824	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	sc.exe
PID 1704 wrote to memory of 2740	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	netsh.exe
PID 1704 wrote to memory of 2740	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	netsh.exe
PID 1704 wrote to memory of 2740	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	netsh.exe
PID 1704 wrote to memory of 2740	1704	dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe	netsh.exe
PID 2860 wrote to memory of 2960	2860	lomhbisc.exe	svchost.exe
PID 2860 wrote to memory of 2960	2860	lomhbisc.exe	svchost.exe
PID 2860 wrote to memory of 2960	2860	lomhbisc.exe	svchost.exe
PID 2860 wrote to memory of 2960	2860	lomhbisc.exe	svchost.exe
PID 2860 wrote to memory of 2960	2860	lomhbisc.exe	svchost.exe
PID 2860 wrote to memory of 2960	2860	lomhbisc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ytxgyrlo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lomhbisc.exe" C:\Windows\SysWOW64\ytxgyrlo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ytxgyrlo binPath= "C:\Windows\SysWOW64\ytxgyrlo\lomhbisc.exe /d\"C:\Users\Admin\AppData\Local\Temp\dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ytxgyrlo "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 ytxgyrlo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- 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:2740

C:\Windows\SysWOW64\ytxgyrlo\lomhbisc.exe
C:\Windows\SysWOW64\ytxgyrlo\lomhbisc.exe /d"C:\Users\Admin\AppData\Local\Temp\dd2de935e742c9e508444e1cf0164886_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- 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:2960

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\lomhbisc.exe

Filesize
10.1MB

MD5
6b1ecc423631eb27cde2556625bee44d

SHA1
2a58efba48eae7f4c186bc644a2167a967d87fc8

SHA256
642e7cf6dbbacd6b144e6c707e72fb637957a21f23afc64a1a6d864a4c93f750

SHA512
aed9a5ca18d2630bdd2fa20d661b1d34eab75efdbce447fa5eda059d014e4a3677e977aa8759636f43ef3b1af4131f6f432b97d293b96963fdab3736db6e6595

Download Submit
memory/1704-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1704-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1704-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1704-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1704-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2860-16-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2960-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2960-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2960-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2960-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2960-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads