tofsee | 1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece

General

Target

JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe
Size

291KB
MD5

831a5dc5fa2b9d8d477d3ef10e217506
SHA1

313455b9a0487d9dcf0b0ceaa054fc8d942a3eca
SHA256

1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece
SHA512

eca615a24dfb8a729a37fdd34e3723c767bd03f99a8404d66fe09e53d58dd4832254fb4049f7b0d13dd510d6cbd0fb876a919dab68ab3bca2370000b8f3f651b
SSDEEP

6144:n2EGgkHHbPvLrBbciQ83oSXuZet0yyeeT3PXsE+BmLzL+:n2oknbrr2iQCoSXuZet0yyeQEE+Bmq

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
2548	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\duxcfrza\ImagePath = "C:\\Windows\\SysWOW64\\duxcfrza\\ohsitqjc.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe

Deletes itself 1 IoCs

pid	Process
4728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3872	ohsitqjc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3872 set thread context of 4728	3872	ohsitqjc.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1892	sc.exe
2908	sc.exe
3876	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
1332	4704	WerFault.exe	81
4624	3872	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ohsitqjc.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 2244	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	82
PID 4704 wrote to memory of 2244	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	82
PID 4704 wrote to memory of 2244	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	82
PID 4704 wrote to memory of 5064	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	84
PID 4704 wrote to memory of 5064	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	84
PID 4704 wrote to memory of 5064	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	84
PID 4704 wrote to memory of 2908	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	86
PID 4704 wrote to memory of 2908	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	86
PID 4704 wrote to memory of 2908	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	86
PID 4704 wrote to memory of 3876	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	88
PID 4704 wrote to memory of 3876	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	88
PID 4704 wrote to memory of 3876	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	88
PID 4704 wrote to memory of 1892	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	90
PID 4704 wrote to memory of 1892	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	90
PID 4704 wrote to memory of 1892	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	90
PID 4704 wrote to memory of 2548	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	93
PID 4704 wrote to memory of 2548	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	93
PID 4704 wrote to memory of 2548	4704	JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe	93
PID 3872 wrote to memory of 4728	3872	ohsitqjc.exe	98
PID 3872 wrote to memory of 4728	3872	ohsitqjc.exe	98
PID 3872 wrote to memory of 4728	3872	ohsitqjc.exe	98
PID 3872 wrote to memory of 4728	3872	ohsitqjc.exe	98
PID 3872 wrote to memory of 4728	3872	ohsitqjc.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\duxcfrza\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohsitqjc.exe" C:\Windows\SysWOW64\duxcfrza\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create duxcfrza binPath= "C:\Windows\SysWOW64\duxcfrza\ohsitqjc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description duxcfrza "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start duxcfrza
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1892
- 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:2548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1044
  2⤵
  - Program crash
  PID:1332

C:\Windows\SysWOW64\duxcfrza\ohsitqjc.exe
C:\Windows\SysWOW64\duxcfrza\ohsitqjc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1843cd50cf003274224a0f3355562f429b8dc4cd307b5b6b8d3fadfbd3840ece.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 532
  2⤵
  - Program crash
  PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4704 -ip 4704
1⤵
PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3872 -ip 3872
1⤵
PID:2208

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\ohsitqjc.exe

Filesize
13.1MB

MD5
098432bf70447831e484f7132cef4fb5

SHA1
db38f035f1d670ecada0bbc3c8eee6342b3ac6b9

SHA256
8d92b549be12d95eb0d8f1b0e77532a99b718332a5651e033420e05af4f56473

SHA512
e15c5d652e8d50855f572449074bd09acd97b328398a6e7ba086839f3dd1ed74318b1025e23ebdd84b5686d9be93d49e69d95df6855821934a47bfd312ed1b20

Download Submit
memory/3872-15-0x0000000000400000-0x0000000001FCF000-memory.dmp

Filesize
27.8MB

Download
memory/4704-1-0x00000000020D0000-0x00000000021D0000-memory.dmp

Filesize
1024KB

Download
memory/4704-2-0x0000000003D10000-0x0000000003D23000-memory.dmp

Filesize
76KB

Download
memory/4704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4704-8-0x0000000003D10000-0x0000000003D23000-memory.dmp

Filesize
76KB

Download
memory/4704-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4704-7-0x0000000000400000-0x0000000001FCF000-memory.dmp

Filesize
27.8MB

Download
memory/4728-11-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/4728-13-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/4728-14-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads