tofsee | f49eff0c9a64e982b1eac981a010b608ca2ca902d5555206fe53b259c5979d33

General

Target

620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe
Size

13.0MB
MD5

620a6aa248abe66526d392b56d679d58
SHA1

c3954ad0f42747c38404871941b5633373e0c55f
SHA256

f49eff0c9a64e982b1eac981a010b608ca2ca902d5555206fe53b259c5979d33
SHA512

b58aa0d57c417d7365abfa91935ff7a15d25e0b0f973c6f90e24f67067dfd94b1dfad0fea2cc8118223e2c8df1cb88eed479e273fcaa7ab8527bf283cc495471
SSDEEP

24576:AW/EClxN7llllllllllllllllllllllllllllllllllllllllllllllllllllll9:A4HN

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
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
1104	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\liydlctb\ImagePath = "C:\\Windows\\SysWOW64\\liydlctb\\dpwqvbow.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4616	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
872	dpwqvbow.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 872 set thread context of 4616	872	dpwqvbow.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
2356	sc.exe
2800	sc.exe
2104	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 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

Program crash 3 IoCs

pid	pid_target	Process	procid_target
1552	872	WerFault.exe	101
1516	872	WerFault.exe	101
1924	872	WerFault.exe	101

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	dpwqvbow.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	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	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 3760	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	87
PID 5092 wrote to memory of 3760	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	87
PID 5092 wrote to memory of 3760	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	87
PID 5092 wrote to memory of 3784	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	91
PID 5092 wrote to memory of 3784	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	91
PID 5092 wrote to memory of 3784	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	91
PID 5092 wrote to memory of 2356	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	93
PID 5092 wrote to memory of 2356	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	93
PID 5092 wrote to memory of 2356	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	93
PID 5092 wrote to memory of 2800	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	97
PID 5092 wrote to memory of 2800	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	97
PID 5092 wrote to memory of 2800	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	97
PID 5092 wrote to memory of 2104	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	99
PID 5092 wrote to memory of 2104	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	99
PID 5092 wrote to memory of 2104	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	99
PID 5092 wrote to memory of 1104	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	102
PID 5092 wrote to memory of 1104	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	102
PID 5092 wrote to memory of 1104	5092	620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe	102
PID 872 wrote to memory of 4616	872	dpwqvbow.exe	104
PID 872 wrote to memory of 4616	872	dpwqvbow.exe	104
PID 872 wrote to memory of 4616	872	dpwqvbow.exe	104
PID 872 wrote to memory of 4616	872	dpwqvbow.exe	104
PID 872 wrote to memory of 4616	872	dpwqvbow.exe	104

C:\Users\Admin\AppData\Local\Temp\620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\liydlctb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dpwqvbow.exe" C:\Windows\SysWOW64\liydlctb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create liydlctb binPath= "C:\Windows\SysWOW64\liydlctb\dpwqvbow.exe /d\"C:\Users\Admin\AppData\Local\Temp\620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description liydlctb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start liydlctb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2104
- 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:1104

C:\Windows\SysWOW64\liydlctb\dpwqvbow.exe
C:\Windows\SysWOW64\liydlctb\dpwqvbow.exe /d"C:\Users\Admin\AppData\Local\Temp\620a6aa248abe66526d392b56d679d58_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 664
  2⤵
  - Program crash
  PID:1552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 716
  2⤵
  - Program crash
  PID:1516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 724
  2⤵
  - Program crash
  PID:1924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 872 -ip 872
1⤵
PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 872 -ip 872
1⤵
PID:2168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 872 -ip 872
1⤵
PID:4724

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

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Downloads

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

Filesize
12.9MB

MD5
4d0f44add803fe89e3aaafaac5197830

SHA1
b86b361730ad22475082fb04ec76c602a7efb63a

SHA256
f17dd6de49f184294190a0541bf48b2b2add5f45b717aab1f44d685636017572

SHA512
d64efe09b4c193d85164800e766c981c2de317bccc5a3db5873763674cf42bfb51e1308cc89023a7d262e8eb3ff842e82048388be4b85e714c4a1e4752cab903

Download Submit
memory/872-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/872-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/872-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4616-15-0x0000000000910000-0x0000000000925000-memory.dmp

Filesize
84KB

Download
memory/4616-13-0x0000000000910000-0x0000000000925000-memory.dmp

Filesize
84KB

Download
memory/4616-16-0x0000000000910000-0x0000000000925000-memory.dmp

Filesize
84KB

Download
memory/5092-9-0x00000000009F0000-0x0000000000A03000-memory.dmp

Filesize
76KB

Download
memory/5092-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5092-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5092-2-0x00000000009F0000-0x0000000000A03000-memory.dmp

Filesize
76KB

Download
memory/5092-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5092-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads