tofsee | 60d3784c885a575e4da68efddcaadd42b60de71878fcf1059dcb911182c692f7

General

Target

JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe
Size

14.3MB
MD5

1b883b5d2b888c636af27554843ba011
SHA1

87d6dec397d1431c24d09eaab7f216dc84581982
SHA256

60d3784c885a575e4da68efddcaadd42b60de71878fcf1059dcb911182c692f7
SHA512

0164eb1b14f1793f8068cc016ecbdc7f0d7891e1206577776c0b67d4a9d03fcc8a49c3c8458fb9559e1f4fdf67b5aa5cc4bc73fb8fb4ca27b24e08f4373d671f
SSDEEP

196608:NE/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvn:NE

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
Tofsee family
tofsee
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
444	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\ssddoqih\ImagePath = "C:\\Windows\\SysWOW64\\ssddoqih\\dkitythv.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe

Deletes itself 1 IoCs

pid	Process
3612	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	dkitythv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 3612	2676	dkitythv.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3684	sc.exe
1476	sc.exe
3976	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1044	3200	WerFault.exe	82
4156	2676	WerFault.exe	94

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1b883b5d2b888c636af27554843ba011.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	dkitythv.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3200 wrote to memory of 2456	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	83
PID 3200 wrote to memory of 2456	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	83
PID 3200 wrote to memory of 2456	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	83
PID 3200 wrote to memory of 4108	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	85
PID 3200 wrote to memory of 4108	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	85
PID 3200 wrote to memory of 4108	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	85
PID 3200 wrote to memory of 1476	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	87
PID 3200 wrote to memory of 1476	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	87
PID 3200 wrote to memory of 1476	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	87
PID 3200 wrote to memory of 3976	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	89
PID 3200 wrote to memory of 3976	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	89
PID 3200 wrote to memory of 3976	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	89
PID 3200 wrote to memory of 3684	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	92
PID 3200 wrote to memory of 3684	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	92
PID 3200 wrote to memory of 3684	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	92
PID 3200 wrote to memory of 444	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	95
PID 3200 wrote to memory of 444	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	95
PID 3200 wrote to memory of 444	3200	JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe	95
PID 2676 wrote to memory of 3612	2676	dkitythv.exe	101
PID 2676 wrote to memory of 3612	2676	dkitythv.exe	101
PID 2676 wrote to memory of 3612	2676	dkitythv.exe	101
PID 2676 wrote to memory of 3612	2676	dkitythv.exe	101
PID 2676 wrote to memory of 3612	2676	dkitythv.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3200
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ssddoqih\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dkitythv.exe" C:\Windows\SysWOW64\ssddoqih\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ssddoqih binPath= "C:\Windows\SysWOW64\ssddoqih\dkitythv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ssddoqih "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ssddoqih
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3684
- 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:444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3200 -s 1044
  2⤵
  - Program crash
  PID:1044

C:\Windows\SysWOW64\ssddoqih\dkitythv.exe
C:\Windows\SysWOW64\ssddoqih\dkitythv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b883b5d2b888c636af27554843ba011.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 520
  2⤵
  - Program crash
  PID:4156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3200 -ip 3200
1⤵
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2676 -ip 2676
1⤵
PID:2036

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\dkitythv.exe

Filesize
13.8MB

MD5
e284b38110321eed1e8e56c5f9e6d7fa

SHA1
02f16597ab005ff0c03083807b74103a4aae98ba

SHA256
043ab592d6691299a7dcf8813109974dc97ef22b545e7fa9f89f780db19e1b33

SHA512
1bfa6929544a94cd5fc4fac26706d953de50c665b8f1062682dc6fa60e07f7fea159420a156e70b1b7cea9f5e14a408dbda6fc1130b502460b1f99bf222aa1fb

Download Submit
memory/2676-16-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2676-11-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2676-12-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/3200-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3200-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3200-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3200-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3200-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/3200-1-0x0000000000C10000-0x0000000000D10000-memory.dmp

Filesize
1024KB

Download
memory/3612-15-0x00000000009B0000-0x00000000009C5000-memory.dmp

Filesize
84KB

Download
memory/3612-13-0x00000000009B0000-0x00000000009C5000-memory.dmp

Filesize
84KB

Download
memory/3612-18-0x00000000009B0000-0x00000000009C5000-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