tofsee | 63cdf16cd0b3d4c7b4b95be5afaa22532bc162806cc222f7e928d3a614d14c76

General

Target

9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe
Size

11.2MB
MD5

9d352b6068831670fae5abf011f496ed
SHA1

e5c0461326655b1c828ce17d694dc21fc23fdc3c
SHA256

63cdf16cd0b3d4c7b4b95be5afaa22532bc162806cc222f7e928d3a614d14c76
SHA512

b886596e31eb5549658a239d3370caa8acacfbf1bf57815853c1fbab513f80de8dd75bcf2b1f189e5697ccbd36fa8d9f7d925c13c91af4c7f576edb930c0c2a4
SSDEEP

98304:nn77777777777777777777777777777777777777777777777777777777777777:n

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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
4752	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\dvhpbqsz\ImagePath = "C:\\Windows\\SysWOW64\\dvhpbqsz\\jqozeznb.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	jqozeznb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2520 set thread context of 4436	2520	jqozeznb.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
640	sc.exe
1696	sc.exe
1140	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
2584	1152	WerFault.exe	82
1356	2520	WerFault.exe	99

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	9d352b6068831670fae5abf011f496ed_JaffaCakes118.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	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	jqozeznb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 3636	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	88
PID 1152 wrote to memory of 3636	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	88
PID 1152 wrote to memory of 3636	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	88
PID 1152 wrote to memory of 1904	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	91
PID 1152 wrote to memory of 1904	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	91
PID 1152 wrote to memory of 1904	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	91
PID 1152 wrote to memory of 1140	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	93
PID 1152 wrote to memory of 1140	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	93
PID 1152 wrote to memory of 1140	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	93
PID 1152 wrote to memory of 640	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	95
PID 1152 wrote to memory of 640	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	95
PID 1152 wrote to memory of 640	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	95
PID 1152 wrote to memory of 1696	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	97
PID 1152 wrote to memory of 1696	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	97
PID 1152 wrote to memory of 1696	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	97
PID 1152 wrote to memory of 4752	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	100
PID 1152 wrote to memory of 4752	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	100
PID 1152 wrote to memory of 4752	1152	9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe	100
PID 2520 wrote to memory of 4436	2520	jqozeznb.exe	108
PID 2520 wrote to memory of 4436	2520	jqozeznb.exe	108
PID 2520 wrote to memory of 4436	2520	jqozeznb.exe	108
PID 2520 wrote to memory of 4436	2520	jqozeznb.exe	108
PID 2520 wrote to memory of 4436	2520	jqozeznb.exe	108

C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dvhpbqsz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jqozeznb.exe" C:\Windows\SysWOW64\dvhpbqsz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dvhpbqsz binPath= "C:\Windows\SysWOW64\dvhpbqsz\jqozeznb.exe /d\"C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dvhpbqsz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dvhpbqsz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1696
- 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:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 1280
  2⤵
  - Program crash
  PID:2584

C:\Windows\SysWOW64\dvhpbqsz\jqozeznb.exe
C:\Windows\SysWOW64\dvhpbqsz\jqozeznb.exe /d"C:\Users\Admin\AppData\Local\Temp\9d352b6068831670fae5abf011f496ed_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2520 -s 516
  2⤵
  - Program crash
  PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1152 -ip 1152
1⤵
PID:4968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2520 -ip 2520
1⤵
PID:2868

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\jqozeznb.exe

Filesize
12.6MB

MD5
f122c9fac48ece7f95f11f9c36feb4a1

SHA1
1896c2d8c615bd8ee57317f78df5fd99eaedebe9

SHA256
594ddddd9a0a82ae27e85d753ecc1b59a68b674cb82d8585e84491abcb38162d

SHA512
e113f2304d3c1e8229a60a8d7bbd44d28fa3fc84f77029478b8f97d26959137388c7141b4ce0aa290fbafb8f29df419a772a1faad6a57ff3ec9bb027df08a7f1

Download Submit
memory/1152-9-0x00000000007B0000-0x00000000007C3000-memory.dmp

Filesize
76KB

Download
memory/1152-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1152-2-0x00000000007B0000-0x00000000007C3000-memory.dmp

Filesize
76KB

Download
memory/1152-8-0x0000000000400000-0x000000000050F000-memory.dmp

Filesize
1.1MB

Download
memory/1152-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1152-1-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/2520-13-0x0000000000400000-0x000000000050F000-memory.dmp

Filesize
1.1MB

Download
memory/2520-12-0x0000000000400000-0x000000000050F000-memory.dmp

Filesize
1.1MB

Download
memory/2520-11-0x0000000000400000-0x000000000050F000-memory.dmp

Filesize
1.1MB

Download
memory/2520-18-0x0000000000400000-0x000000000050F000-memory.dmp

Filesize
1.1MB

Download
memory/4436-16-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download
memory/4436-14-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download
memory/4436-17-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads