tofsee | 760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e

General

Target

JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe
Size

160KB
MD5

686fc196e10156d0a866258e20534432
SHA1

295e798b2d891f5a894f29f6ca9af5ef8c81b14a
SHA256

760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e
SHA512

e0726d5adbb41bd7c69b97c2be8e09a867d34e1899ee32bd03e0079ee6c4ab652a6d7bcfd9033204573091e04177ffaee1326ea867718615ff673f1675123ad2
SSDEEP

3072:m+qa3AwxO2IrqgjxT3WF5UvE1WhOgdq8jsYB6Gu:R31O2UqKRWyE1WEiqdo6G

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
2028	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\aoxcllps\ImagePath = "C:\\Windows\\SysWOW64\\aoxcllps\\hdssxekb.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe

Deletes itself 1 IoCs

pid	Process
908	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1412	hdssxekb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1412 set thread context of 908	1412	hdssxekb.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4140	sc.exe
4128	sc.exe
1536	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2312	4712	WerFault.exe	82
208	1412	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	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hdssxekb.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	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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 2872	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	83
PID 4712 wrote to memory of 2872	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	83
PID 4712 wrote to memory of 2872	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	83
PID 4712 wrote to memory of 1928	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	85
PID 4712 wrote to memory of 1928	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	85
PID 4712 wrote to memory of 1928	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	85
PID 4712 wrote to memory of 4140	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	87
PID 4712 wrote to memory of 4140	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	87
PID 4712 wrote to memory of 4140	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	87
PID 4712 wrote to memory of 4128	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	89
PID 4712 wrote to memory of 4128	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	89
PID 4712 wrote to memory of 4128	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	89
PID 4712 wrote to memory of 1536	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	91
PID 4712 wrote to memory of 1536	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	91
PID 4712 wrote to memory of 1536	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	91
PID 4712 wrote to memory of 2028	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	94
PID 4712 wrote to memory of 2028	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	94
PID 4712 wrote to memory of 2028	4712	JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe	94
PID 1412 wrote to memory of 908	1412	hdssxekb.exe	97
PID 1412 wrote to memory of 908	1412	hdssxekb.exe	97
PID 1412 wrote to memory of 908	1412	hdssxekb.exe	97
PID 1412 wrote to memory of 908	1412	hdssxekb.exe	97
PID 1412 wrote to memory of 908	1412	hdssxekb.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aoxcllps\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hdssxekb.exe" C:\Windows\SysWOW64\aoxcllps\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aoxcllps binPath= "C:\Windows\SysWOW64\aoxcllps\hdssxekb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aoxcllps "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aoxcllps
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1536
- 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:2028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 1192
  2⤵
  - Program crash
  PID:2312

C:\Windows\SysWOW64\aoxcllps\hdssxekb.exe
C:\Windows\SysWOW64\aoxcllps\hdssxekb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_760dcdefd76a6511354f00a7eaa02830f82f5f9cddb78cc2ddb20dfc3bc3bf0e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1412 -s 516
  2⤵
  - Program crash
  PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1412 -ip 1412
1⤵
PID:4536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4712 -ip 4712
1⤵
PID:1612

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hdssxekb.exe

Filesize
14.2MB

MD5
964fda29a4b333b91a67b21833fb0dcc

SHA1
c645f06a74283ec591a2a719d99ff2ac45ee8506

SHA256
799dbad97102287f4bda345a2a6d5ecd52fdd3e681bb3f1c46e0c8e4d698bc19

SHA512
541dabeb9b9a343ad494f78202d5a77c2602c71fcd8414a121dceecad41453826aa3cba4f7bfc01cf951e73c671bd2815e7b7f3857808fa4c11213367fd285f4

Download Submit
memory/908-8-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

Filesize
84KB

Download
memory/908-20-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

Filesize
84KB

Download
memory/908-19-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

Filesize
84KB

Download
memory/908-18-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

Filesize
84KB

Download
memory/908-11-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

Filesize
84KB

Download
memory/1412-13-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1412-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1412-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4712-0-0x00000000004F0000-0x00000000004FD000-memory.dmp

Filesize
52KB

Download
memory/4712-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4712-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4712-16-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download
memory/4712-15-0x00000000004F0000-0x00000000004FD000-memory.dmp

Filesize
52KB

Download
memory/4712-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4712-1-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads