tofsee | 148f0b1c12932ed4c2d31d9e6f92f9d9d4e75bb6226f2d08c9ac3cb372c41c47

General

Target

JaffaCakes118_925191432738c7e459066892ee14e61d.exe
Size

12.4MB
MD5

925191432738c7e459066892ee14e61d
SHA1

3afef1c1155137cb36561d4b97baffe9bdfe48c2
SHA256

148f0b1c12932ed4c2d31d9e6f92f9d9d4e75bb6226f2d08c9ac3cb372c41c47
SHA512

72b0a4f0c50db39d20ad2f9d2b5c21b601b86cf2aa5b0930e954fa78c086ee15f31dbe7b339ccb3029d555725919f2392d4d4225a141c7cad13e6364b8e8d296
SSDEEP

49152:EkHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH:

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
4116	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\ctgeqxwu\ImagePath = "C:\\Windows\\SysWOW64\\ctgeqxwu\\npjyuqmd.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_925191432738c7e459066892ee14e61d.exe

Deletes itself 1 IoCs

pid	Process
3668	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3064	npjyuqmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3064 set thread context of 3668	3064	npjyuqmd.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1448	sc.exe
3948	sc.exe
2264	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
408	3316	WerFault.exe	82
4808	3064	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	npjyuqmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_925191432738c7e459066892ee14e61d.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 752	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	83
PID 3316 wrote to memory of 752	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	83
PID 3316 wrote to memory of 752	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	83
PID 3316 wrote to memory of 1600	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	85
PID 3316 wrote to memory of 1600	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	85
PID 3316 wrote to memory of 1600	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	85
PID 3316 wrote to memory of 1448	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	87
PID 3316 wrote to memory of 1448	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	87
PID 3316 wrote to memory of 1448	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	87
PID 3316 wrote to memory of 3948	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	89
PID 3316 wrote to memory of 3948	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	89
PID 3316 wrote to memory of 3948	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	89
PID 3316 wrote to memory of 2264	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	91
PID 3316 wrote to memory of 2264	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	91
PID 3316 wrote to memory of 2264	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	91
PID 3316 wrote to memory of 4116	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	94
PID 3316 wrote to memory of 4116	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	94
PID 3316 wrote to memory of 4116	3316	JaffaCakes118_925191432738c7e459066892ee14e61d.exe	94
PID 3064 wrote to memory of 3668	3064	npjyuqmd.exe	100
PID 3064 wrote to memory of 3668	3064	npjyuqmd.exe	100
PID 3064 wrote to memory of 3668	3064	npjyuqmd.exe	100
PID 3064 wrote to memory of 3668	3064	npjyuqmd.exe	100
PID 3064 wrote to memory of 3668	3064	npjyuqmd.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925191432738c7e459066892ee14e61d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925191432738c7e459066892ee14e61d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ctgeqxwu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\npjyuqmd.exe" C:\Windows\SysWOW64\ctgeqxwu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ctgeqxwu binPath= "C:\Windows\SysWOW64\ctgeqxwu\npjyuqmd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925191432738c7e459066892ee14e61d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ctgeqxwu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ctgeqxwu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- 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:4116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 576
  2⤵
  - Program crash
  PID:408

C:\Windows\SysWOW64\ctgeqxwu\npjyuqmd.exe
C:\Windows\SysWOW64\ctgeqxwu\npjyuqmd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925191432738c7e459066892ee14e61d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 516
  2⤵
  - Program crash
  PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3316 -ip 3316
1⤵
PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3064 -ip 3064
1⤵
PID:984

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\npjyuqmd.exe

Filesize
12.4MB

MD5
38daa1434bb358c3b69e691deb9d39a6

SHA1
fc58d7c1108faface6a1991248d3736194b51a81

SHA256
d8054625d869d34c7eab7ce44aad5b0bb553947f45f8e8ba57f4a5df9670a74c

SHA512
ad61a18b45a2cfd59d2770cb67f571f651c51fd02b8a1d6c7d13c0cb8bfbcfd78cc18671a85e87d73febddd53e98ec8c7b56d500f8a85ebac2b80d5e42f8cb45

Download Submit
memory/3064-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3064-17-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3316-1-0x0000000000860000-0x0000000000960000-memory.dmp

Filesize
1024KB

Download
memory/3316-2-0x00000000024D0000-0x00000000024E3000-memory.dmp

Filesize
76KB

Download
memory/3316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3316-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3316-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3316-9-0x00000000024D0000-0x00000000024E3000-memory.dmp

Filesize
76KB

Download
memory/3668-12-0x00000000008E0000-0x00000000008F5000-memory.dmp

Filesize
84KB

Download
memory/3668-14-0x00000000008E0000-0x00000000008F5000-memory.dmp

Filesize
84KB

Download
memory/3668-15-0x00000000008E0000-0x00000000008F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads