tofsee | 6063cdcff6aef2676a221bd82b052bc15a8ae10f4eec04dade0a454220c7a732

General

Target

JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe
Size

12.9MB
MD5

d3758575fd9f846d85b214009243fd7a
SHA1

91c5274faaa9c810fa7ba8f546cfe8ea7a3b4465
SHA256

6063cdcff6aef2676a221bd82b052bc15a8ae10f4eec04dade0a454220c7a732
SHA512

7bbbbbb36646bd75f84d9d0cdc79fc920004902c4601789fcf5330266a2ed3f7397b148875ebb851fb868188ce5831dcf7be5cca34ac68f9fbe55617c05e2c3c
SSDEEP

49152:67G000000000000000000000000000000000000000000000000000000000000c:

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
1492	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\rfoxxxch\ImagePath = "C:\\Windows\\SysWOW64\\rfoxxxch\\ngugysuh.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe

Deletes itself 1 IoCs

pid	Process
4624	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2104	ngugysuh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 4624	2104	ngugysuh.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1188	sc.exe
4264	sc.exe
856	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
1636	4564	WerFault.exe	82
1624	2104	WerFault.exe	94

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ngugysuh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 4776	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	83
PID 4564 wrote to memory of 4776	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	83
PID 4564 wrote to memory of 4776	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	83
PID 4564 wrote to memory of 4592	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	85
PID 4564 wrote to memory of 4592	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	85
PID 4564 wrote to memory of 4592	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	85
PID 4564 wrote to memory of 1188	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	88
PID 4564 wrote to memory of 1188	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	88
PID 4564 wrote to memory of 1188	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	88
PID 4564 wrote to memory of 4264	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	90
PID 4564 wrote to memory of 4264	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	90
PID 4564 wrote to memory of 4264	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	90
PID 4564 wrote to memory of 856	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	92
PID 4564 wrote to memory of 856	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	92
PID 4564 wrote to memory of 856	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	92
PID 4564 wrote to memory of 1492	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	95
PID 4564 wrote to memory of 1492	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	95
PID 4564 wrote to memory of 1492	4564	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	95
PID 2104 wrote to memory of 4624	2104	ngugysuh.exe	101
PID 2104 wrote to memory of 4624	2104	ngugysuh.exe	101
PID 2104 wrote to memory of 4624	2104	ngugysuh.exe	101
PID 2104 wrote to memory of 4624	2104	ngugysuh.exe	101
PID 2104 wrote to memory of 4624	2104	ngugysuh.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rfoxxxch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ngugysuh.exe" C:\Windows\SysWOW64\rfoxxxch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rfoxxxch binPath= "C:\Windows\SysWOW64\rfoxxxch\ngugysuh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rfoxxxch "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rfoxxxch
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:856
- 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:1492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 1044
  2⤵
  - Program crash
  PID:1636

C:\Windows\SysWOW64\rfoxxxch\ngugysuh.exe
C:\Windows\SysWOW64\rfoxxxch\ngugysuh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 512
  2⤵
  - Program crash
  PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4564 -ip 4564
1⤵
PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2104 -ip 2104
1⤵
PID:4120

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\ngugysuh.exe

Filesize
14.6MB

MD5
9e59ea2228bf95ff06e0f2ebf06b3d43

SHA1
0e2d3dd65e34f1556c5e0f44dd41fb045256d4bc

SHA256
5895ab0b69a968c3f4d0992e651f371e53fdf39206721a185d2a2b2f51131989

SHA512
2de6597d368166ee297c77efe63fc8dd69cc407346fb1d587e96d49e997c70ae795a125774f398feac4e48978942b9e8284f94d8034f487b03893de7aa9d1b9d

Download Submit
memory/2104-15-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/4564-1-0x0000000002DC0000-0x0000000002EC0000-memory.dmp

Filesize
1024KB

Download
memory/4564-2-0x00000000049B0000-0x00000000049C3000-memory.dmp

Filesize
76KB

Download
memory/4564-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-9-0x00000000049B0000-0x00000000049C3000-memory.dmp

Filesize
76KB

Download
memory/4564-8-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/4624-11-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/4624-13-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/4624-14-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads