tofsee | 79231c2cacbfc0da610bb317d280a96d0d10e63a5824d5d052e41e57fb85bd6f

General

Target

JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe
Size

12.5MB
MD5

aee483bf0ab0bbba03e7add1c7b24d70
SHA1

15ef01d3f681c7ec8cfb1e55a318723f4f4406f7
SHA256

79231c2cacbfc0da610bb317d280a96d0d10e63a5824d5d052e41e57fb85bd6f
SHA512

4dfe9bb49aec68b29055ab74aaac4efd83e96051072aa9f15bd2a8530376ba58f1b3d7741229a5fd96f81cd92ead9481918b4fe580bcc4baae158269d985d80e
SSDEEP

6144:0ngjLKfnGE+Nj43Gd/50NS0UG4th+d49EOVVVVVVVVVVVVVVVVVVVVVVVVVVVVV7:fiOE+Nj4Q50k0UGIh+dJ

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
4144	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\ilalkswg\ImagePath = "C:\\Windows\\SysWOW64\\ilalkswg\\wdpclyzt.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_aee483bf0ab0bbba03e7add1c7b24d70.exe

Deletes itself 1 IoCs

pid	Process
4444	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2104	wdpclyzt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 4444	2104	wdpclyzt.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1204	sc.exe
4540	sc.exe
4000	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
220	4252	WerFault.exe	82
4648	2104	WerFault.exe	93

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	wdpclyzt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 4052	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	83
PID 4252 wrote to memory of 4052	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	83
PID 4252 wrote to memory of 4052	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	83
PID 4252 wrote to memory of 2080	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	85
PID 4252 wrote to memory of 2080	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	85
PID 4252 wrote to memory of 2080	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	85
PID 4252 wrote to memory of 1204	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	87
PID 4252 wrote to memory of 1204	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	87
PID 4252 wrote to memory of 1204	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	87
PID 4252 wrote to memory of 4540	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	89
PID 4252 wrote to memory of 4540	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	89
PID 4252 wrote to memory of 4540	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	89
PID 4252 wrote to memory of 4000	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	91
PID 4252 wrote to memory of 4000	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	91
PID 4252 wrote to memory of 4000	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	91
PID 4252 wrote to memory of 4144	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	94
PID 4252 wrote to memory of 4144	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	94
PID 4252 wrote to memory of 4144	4252	JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe	94
PID 2104 wrote to memory of 4444	2104	wdpclyzt.exe	100
PID 2104 wrote to memory of 4444	2104	wdpclyzt.exe	100
PID 2104 wrote to memory of 4444	2104	wdpclyzt.exe	100
PID 2104 wrote to memory of 4444	2104	wdpclyzt.exe	100
PID 2104 wrote to memory of 4444	2104	wdpclyzt.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ilalkswg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wdpclyzt.exe" C:\Windows\SysWOW64\ilalkswg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ilalkswg binPath= "C:\Windows\SysWOW64\ilalkswg\wdpclyzt.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ilalkswg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ilalkswg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4000
- 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:4144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 792
  2⤵
  - Program crash
  PID:220

C:\Windows\SysWOW64\ilalkswg\wdpclyzt.exe
C:\Windows\SysWOW64\ilalkswg\wdpclyzt.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aee483bf0ab0bbba03e7add1c7b24d70.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 524
  2⤵
  - Program crash
  PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4252 -ip 4252
1⤵
PID:3172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2104 -ip 2104
1⤵
PID:2044

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\wdpclyzt.exe

Filesize
11.5MB

MD5
ae5ac7d379b10cb884628331eb55cbcd

SHA1
68e266102017e0b00277d1a5121cb42067d3ac8c

SHA256
ed880ed129171586b22f37d3b725b0b0725fdaedf02f4073967bad4cd49ed119

SHA512
10f3838bbff7ca61d55c561e94e81aa9eeaa96d10adf51d7c54bc3d9074bc39f7145323fcb0d00839d611bf14609f4e107d49171e41dedc1a3b52521c65b3f75

Download Submit
memory/2104-13-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/2104-16-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/4252-1-0x0000000001950000-0x0000000001A50000-memory.dmp

Filesize
1024KB

Download
memory/4252-2-0x0000000001930000-0x0000000001943000-memory.dmp

Filesize
76KB

Download
memory/4252-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4252-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4252-9-0x0000000001930000-0x0000000001943000-memory.dmp

Filesize
76KB

Download
memory/4252-8-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/4444-11-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/4444-14-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/4444-15-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads