tofsee | ab36fce7f0edb63b7d13f0521da1ef199e5279653c402ccbcaea5c91145e7db8

General

Target

JaffaCakes118_cecdcd91d05b749a282783624a928846.exe
Size

14.9MB
MD5

cecdcd91d05b749a282783624a928846
SHA1

a29aa38c67d167ddda8565b00832d3a5154bebad
SHA256

ab36fce7f0edb63b7d13f0521da1ef199e5279653c402ccbcaea5c91145e7db8
SHA512

3156ab813d4e406b47d7fa91357ed1920f9ce0b7126505bcb4532817e56fcece8110d45079fc9f067621e472d3774c220a1e1cb9b91fc9b004cf2ef467ee02af
SSDEEP

49152:5kHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHn:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
1680	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\gggopiob\ImagePath = "C:\\Windows\\SysWOW64\\gggopiob\\mftfxrtg.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3948	mftfxrtg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3948 set thread context of 2988	3948	mftfxrtg.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3488	sc.exe
2428	sc.exe
888	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
2032	3644	WerFault.exe	81
2696	3948	WerFault.exe	92

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	mftfxrtg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cecdcd91d05b749a282783624a928846.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	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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 2012	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	82
PID 3644 wrote to memory of 2012	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	82
PID 3644 wrote to memory of 2012	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	82
PID 3644 wrote to memory of 4064	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	84
PID 3644 wrote to memory of 4064	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	84
PID 3644 wrote to memory of 4064	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	84
PID 3644 wrote to memory of 3488	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	86
PID 3644 wrote to memory of 3488	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	86
PID 3644 wrote to memory of 3488	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	86
PID 3644 wrote to memory of 2428	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	88
PID 3644 wrote to memory of 2428	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	88
PID 3644 wrote to memory of 2428	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	88
PID 3644 wrote to memory of 888	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	90
PID 3644 wrote to memory of 888	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	90
PID 3644 wrote to memory of 888	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	90
PID 3644 wrote to memory of 1680	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	93
PID 3644 wrote to memory of 1680	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	93
PID 3644 wrote to memory of 1680	3644	JaffaCakes118_cecdcd91d05b749a282783624a928846.exe	93
PID 3948 wrote to memory of 2988	3948	mftfxrtg.exe	98
PID 3948 wrote to memory of 2988	3948	mftfxrtg.exe	98
PID 3948 wrote to memory of 2988	3948	mftfxrtg.exe	98
PID 3948 wrote to memory of 2988	3948	mftfxrtg.exe	98
PID 3948 wrote to memory of 2988	3948	mftfxrtg.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cecdcd91d05b749a282783624a928846.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cecdcd91d05b749a282783624a928846.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gggopiob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mftfxrtg.exe" C:\Windows\SysWOW64\gggopiob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gggopiob binPath= "C:\Windows\SysWOW64\gggopiob\mftfxrtg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cecdcd91d05b749a282783624a928846.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gggopiob "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gggopiob
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:888
- 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:1680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 1040
  2⤵
  - Program crash
  PID:2032

C:\Windows\SysWOW64\gggopiob\mftfxrtg.exe
C:\Windows\SysWOW64\gggopiob\mftfxrtg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cecdcd91d05b749a282783624a928846.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 512
  2⤵
  - Program crash
  PID:2696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3644 -ip 3644
1⤵
PID:2648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3948 -ip 3948
1⤵
PID:1300

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\mftfxrtg.exe

Filesize
10.6MB

MD5
95c87bbc81167289b252b349eb3c732a

SHA1
39daf173cdc5f6289c07e7c3d33842f1244d3590

SHA256
da66911a23c53304583fa3ae8a64237b75d8db2914d6da942499e82f2f29afb9

SHA512
f165f90298acaf1210086234e1425fb8ede9bcab0c34fc82c927e82f5b435cdb67a67d1d4f23be1eea0c01cffaebc841102679eb66e7c97e678113545adc5947

Download Submit
memory/2988-12-0x0000000000CE0000-0x0000000000CF5000-memory.dmp

Filesize
84KB

Download
memory/2988-14-0x0000000000CE0000-0x0000000000CF5000-memory.dmp

Filesize
84KB

Download
memory/2988-15-0x0000000000CE0000-0x0000000000CF5000-memory.dmp

Filesize
84KB

Download
memory/3644-1-0x00000000007C0000-0x00000000008C0000-memory.dmp

Filesize
1024KB

Download
memory/3644-2-0x00000000024D0000-0x00000000024E3000-memory.dmp

Filesize
76KB

Download
memory/3644-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3644-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3644-9-0x00000000024D0000-0x00000000024E3000-memory.dmp

Filesize
76KB

Download
memory/3644-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3948-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3948-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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