tofsee | 9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122

General

Target

JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe
Size

260KB
MD5

09662c2592b14405b5c16b764060d751
SHA1

4c6e859253fbd8093f2200b7bdaebc27f19449d8
SHA256

9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122
SHA512

73427221b5bd5d2e260bfddd1664e5fa0ec13e781cfaa6e7598e8a453e7b9e39908b0cd409ce551cd744cf9b602edda34293799c38c3122be155bd38ab002ac3
SSDEEP

6144:2QXRZhTGxVInBgovdk+pXFE/WWWLNarbRi7:2KDhGxVIBggNp1EYBarbRi

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
4240	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\bznbfxju\ImagePath = "C:\\Windows\\SysWOW64\\bznbfxju\\pwiversm.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	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe

Deletes itself 1 IoCs

pid	Process
3968	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
936	pwiversm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 936 set thread context of 3968	936	pwiversm.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
212	sc.exe
2976	sc.exe
836	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
4948	5064	WerFault.exe	82
2600	936	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.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	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	pwiversm.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 1780	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	83
PID 5064 wrote to memory of 1780	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	83
PID 5064 wrote to memory of 1780	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	83
PID 5064 wrote to memory of 3356	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	85
PID 5064 wrote to memory of 3356	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	85
PID 5064 wrote to memory of 3356	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	85
PID 5064 wrote to memory of 836	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	87
PID 5064 wrote to memory of 836	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	87
PID 5064 wrote to memory of 836	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	87
PID 5064 wrote to memory of 212	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	89
PID 5064 wrote to memory of 212	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	89
PID 5064 wrote to memory of 212	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	89
PID 5064 wrote to memory of 2976	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	92
PID 5064 wrote to memory of 2976	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	92
PID 5064 wrote to memory of 2976	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	92
PID 5064 wrote to memory of 4240	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	95
PID 5064 wrote to memory of 4240	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	95
PID 5064 wrote to memory of 4240	5064	JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe	95
PID 936 wrote to memory of 3968	936	pwiversm.exe	101
PID 936 wrote to memory of 3968	936	pwiversm.exe	101
PID 936 wrote to memory of 3968	936	pwiversm.exe	101
PID 936 wrote to memory of 3968	936	pwiversm.exe	101
PID 936 wrote to memory of 3968	936	pwiversm.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bznbfxju\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwiversm.exe" C:\Windows\SysWOW64\bznbfxju\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bznbfxju binPath= "C:\Windows\SysWOW64\bznbfxju\pwiversm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bznbfxju "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bznbfxju
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- 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:4240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 1044
  2⤵
  - Program crash
  PID:4948

C:\Windows\SysWOW64\bznbfxju\pwiversm.exe
C:\Windows\SysWOW64\bznbfxju\pwiversm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9463797712a33f68379cc2ab3f503a6ddc1b3abcc73d2cae21d9889118948122.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:936
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 936 -s 512
  2⤵
  - Program crash
  PID:2600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5064 -ip 5064
1⤵
PID:3696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 936 -ip 936
1⤵
PID:3332

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\pwiversm.exe

Filesize
13.4MB

MD5
aa5f7bf0523df67b80cf21571c2024bc

SHA1
60a47a228e2105201d8250bb9c1a6b2ac7da0622

SHA256
59e827a62323ce471bc105eb19eb275eb25e18e0006a7b0b2eb0ab27aec0b4ae

SHA512
7e107c124413827f9779fdb11c3e49830749d1b05f04b375510cfecc4cd69f4494e1c1bc75c4633d76fe02955bc980e3dcbd77cc96fab400cbcf4cc31f302772

Download Submit
memory/936-13-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/936-11-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/936-18-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/3968-12-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/3968-15-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/3968-16-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/5064-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5064-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/5064-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/5064-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5064-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/5064-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads