tofsee | 14d2c60424d078e0d5900a44f2cf81a1b22224231d20ccd91b8841bff68f9aa2

General

Target

JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe
Size

13.9MB
MD5

d05b590cc81b113ed63fe88a4c29fbc5
SHA1

45f68c0c125657b701357e9b16700e3914bf0567
SHA256

14d2c60424d078e0d5900a44f2cf81a1b22224231d20ccd91b8841bff68f9aa2
SHA512

17272f0cd99f55ceb82aeba78ee4496677449a09a98460e619e8c699195d51f2bfd039dfb2c3f5b25b23031da79529fac3b017fbf46cafbcff6bfb0443bd105e
SSDEEP

393216:BMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMs:BMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMs

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
4512	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\cidxhzcw\ImagePath = "C:\\Windows\\SysWOW64\\cidxhzcw\\bqvwqybu.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe

Deletes itself 1 IoCs

pid	Process
3660	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3932	bqvwqybu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3932 set thread context of 3660	3932	bqvwqybu.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
436	sc.exe
3248	sc.exe
2956	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
3188	3644	WerFault.exe	84
1604	3932	WerFault.exe	96

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bqvwqybu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 1204	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	86
PID 3644 wrote to memory of 1204	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	86
PID 3644 wrote to memory of 1204	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	86
PID 3644 wrote to memory of 1900	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	88
PID 3644 wrote to memory of 1900	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	88
PID 3644 wrote to memory of 1900	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	88
PID 3644 wrote to memory of 436	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	90
PID 3644 wrote to memory of 436	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	90
PID 3644 wrote to memory of 436	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	90
PID 3644 wrote to memory of 3248	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	92
PID 3644 wrote to memory of 3248	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	92
PID 3644 wrote to memory of 3248	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	92
PID 3644 wrote to memory of 2956	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	94
PID 3644 wrote to memory of 2956	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	94
PID 3644 wrote to memory of 2956	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	94
PID 3644 wrote to memory of 4512	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	97
PID 3644 wrote to memory of 4512	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	97
PID 3644 wrote to memory of 4512	3644	JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe	97
PID 3932 wrote to memory of 3660	3932	bqvwqybu.exe	103
PID 3932 wrote to memory of 3660	3932	bqvwqybu.exe	103
PID 3932 wrote to memory of 3660	3932	bqvwqybu.exe	103
PID 3932 wrote to memory of 3660	3932	bqvwqybu.exe	103
PID 3932 wrote to memory of 3660	3932	bqvwqybu.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.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\cidxhzcw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bqvwqybu.exe" C:\Windows\SysWOW64\cidxhzcw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cidxhzcw binPath= "C:\Windows\SysWOW64\cidxhzcw\bqvwqybu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cidxhzcw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cidxhzcw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2956
- 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:4512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 1236
  2⤵
  - Program crash
  PID:3188

C:\Windows\SysWOW64\cidxhzcw\bqvwqybu.exe
C:\Windows\SysWOW64\cidxhzcw\bqvwqybu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d05b590cc81b113ed63fe88a4c29fbc5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 536
  2⤵
  - Program crash
  PID:1604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3644 -ip 3644
1⤵
PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3932 -ip 3932
1⤵
PID:5092

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\bqvwqybu.exe

Filesize
12.9MB

MD5
d584df58d67e6b99b0bfe24516eb499f

SHA1
44d07129438c468577b8b191ef523e1dfb43c7a2

SHA256
b9abef1b3e65345efdc832f4006c9b76ae057086c5597564c033694c37f56d38

SHA512
c6ddfce2ba5a14154afd314fc68a82c35fb218f0fbe01e93663a2bd35f5faddc5206902dae1cbd088f055947a7cac04bba91c3cb09ca949f801c1b1ca9b1b775

Download Submit
memory/3644-0-0x0000000003270000-0x000000000327D000-memory.dmp

Filesize
52KB

Download
memory/3644-1-0x00000000032A0000-0x00000000032B3000-memory.dmp

Filesize
76KB

Download
memory/3644-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3644-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3644-8-0x00000000032A0000-0x00000000032B3000-memory.dmp

Filesize
76KB

Download
memory/3644-7-0x0000000003270000-0x000000000327D000-memory.dmp

Filesize
52KB

Download
memory/3644-6-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download
memory/3660-10-0x0000000000F20000-0x0000000000F35000-memory.dmp

Filesize
84KB

Download
memory/3660-12-0x0000000000F20000-0x0000000000F35000-memory.dmp

Filesize
84KB

Download
memory/3660-13-0x0000000000F20000-0x0000000000F35000-memory.dmp

Filesize
84KB

Download
memory/3932-14-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads