tofsee | 665f67bbebb566cefe67f0ffbf743e93509211b8a490bf132d232d020d55e5f2

General

Target

JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe
Size

10.1MB
MD5

e90b90af3f600eb0030f10f43fc1e213
SHA1

c64fe5d5de7582aa3362bff12bff069ab030f2f2
SHA256

665f67bbebb566cefe67f0ffbf743e93509211b8a490bf132d232d020d55e5f2
SHA512

9d2cae9099cafabf1107240e52c6647c3caae6014493fdae0e6b07ac4a42300d1b79c2f034f8bb3f7a28e5cee5246127ab46bd5a92689cd0bb5d17d91b9d8efe
SSDEEP

49152:Q77777777777777777777777777777777777777777777777777777777777777X:

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
3700	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\xgztymbm\ImagePath = "C:\\Windows\\SysWOW64\\xgztymbm\\ghfpslqb.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_e90b90af3f600eb0030f10f43fc1e213.exe

Deletes itself 1 IoCs

pid	Process
2216	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2044	ghfpslqb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2044 set thread context of 2216	2044	ghfpslqb.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4940	sc.exe
3060	sc.exe
1548	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
1172	4876	WerFault.exe	82
324	2044	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	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ghfpslqb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 4964	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	83
PID 4876 wrote to memory of 4964	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	83
PID 4876 wrote to memory of 4964	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	83
PID 4876 wrote to memory of 2844	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	86
PID 4876 wrote to memory of 2844	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	86
PID 4876 wrote to memory of 2844	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	86
PID 4876 wrote to memory of 1548	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	88
PID 4876 wrote to memory of 1548	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	88
PID 4876 wrote to memory of 1548	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	88
PID 4876 wrote to memory of 4940	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	92
PID 4876 wrote to memory of 4940	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	92
PID 4876 wrote to memory of 4940	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	92
PID 4876 wrote to memory of 3060	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	94
PID 4876 wrote to memory of 3060	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	94
PID 4876 wrote to memory of 3060	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	94
PID 4876 wrote to memory of 3700	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	99
PID 4876 wrote to memory of 3700	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	99
PID 4876 wrote to memory of 3700	4876	JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe	99
PID 2044 wrote to memory of 2216	2044	ghfpslqb.exe	105
PID 2044 wrote to memory of 2216	2044	ghfpslqb.exe	105
PID 2044 wrote to memory of 2216	2044	ghfpslqb.exe	105
PID 2044 wrote to memory of 2216	2044	ghfpslqb.exe	105
PID 2044 wrote to memory of 2216	2044	ghfpslqb.exe	105

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xgztymbm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ghfpslqb.exe" C:\Windows\SysWOW64\xgztymbm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xgztymbm binPath= "C:\Windows\SysWOW64\xgztymbm\ghfpslqb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xgztymbm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xgztymbm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3060
- 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:3700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 1036
  2⤵
  - Program crash
  PID:1172

C:\Windows\SysWOW64\xgztymbm\ghfpslqb.exe
C:\Windows\SysWOW64\xgztymbm\ghfpslqb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90b90af3f600eb0030f10f43fc1e213.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 512
  2⤵
  - Program crash
  PID:324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4876 -ip 4876
1⤵
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2044 -ip 2044
1⤵
PID:4348

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\ghfpslqb.exe

Filesize
13.5MB

MD5
9421023a317471240016cb0ec64b5104

SHA1
bcdc35565b7010572e8b86c664a3fbe79b4b417f

SHA256
f010af346b4d0fab70e48c912f8408e0a30bb6257f907abd6c204eec5e888550

SHA512
f9b2eb42266b1c60e50ce99e66dc8f8d5b04fbbfefa9be2498ac25671f9adc2575bad43af9c62560a8f0510887441f1fcb9eadc14311a8ae6fce9e0b465b2289

Download Submit
memory/2044-11-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2044-17-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2216-12-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/2216-14-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/2216-15-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/4876-1-0x0000000001890000-0x0000000001990000-memory.dmp

Filesize
1024KB

Download
memory/4876-2-0x0000000001860000-0x0000000001873000-memory.dmp

Filesize
76KB

Download
memory/4876-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4876-9-0x0000000001860000-0x0000000001873000-memory.dmp

Filesize
76KB

Download
memory/4876-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4876-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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