tofsee | 92772c18b2bcfe93372b188476174d63bc1b32d87234ea86e3a1c6bd6df09620

General

Target

JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe
Size

12.0MB
MD5

e1abeceb2c1aa08ae4fe35e09bc2c79d
SHA1

ee0b1d827d3e77c5cb1e2ae45be16476fb0e4c69
SHA256

92772c18b2bcfe93372b188476174d63bc1b32d87234ea86e3a1c6bd6df09620
SHA512

734afdef014d0ab281092a19d80cdecbb4758f39b174b2211952a3173b8d6c09462e7e1dbdc55baf582a314c405017096549e531071bbcd13312a9846b360de1
SSDEEP

196608:n+TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTz: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
3208	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\wylqpgyo\ImagePath = "C:\\Windows\\SysWOW64\\wylqpgyo\\hoanwjke.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe

Deletes itself 1 IoCs

pid	Process
1988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4380	hoanwjke.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4380 set thread context of 1988	4380	hoanwjke.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2592	sc.exe
1188	sc.exe
2796	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
3128	3672	WerFault.exe	84
4484	4380	WerFault.exe	96

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	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.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	hoanwjke.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 4612	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	85
PID 3672 wrote to memory of 4612	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	85
PID 3672 wrote to memory of 4612	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	85
PID 3672 wrote to memory of 3112	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	87
PID 3672 wrote to memory of 3112	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	87
PID 3672 wrote to memory of 3112	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	87
PID 3672 wrote to memory of 2592	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	89
PID 3672 wrote to memory of 2592	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	89
PID 3672 wrote to memory of 2592	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	89
PID 3672 wrote to memory of 1188	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	91
PID 3672 wrote to memory of 1188	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	91
PID 3672 wrote to memory of 1188	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	91
PID 3672 wrote to memory of 2796	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	94
PID 3672 wrote to memory of 2796	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	94
PID 3672 wrote to memory of 2796	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	94
PID 3672 wrote to memory of 3208	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	97
PID 3672 wrote to memory of 3208	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	97
PID 3672 wrote to memory of 3208	3672	JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe	97
PID 4380 wrote to memory of 1988	4380	hoanwjke.exe	103
PID 4380 wrote to memory of 1988	4380	hoanwjke.exe	103
PID 4380 wrote to memory of 1988	4380	hoanwjke.exe	103
PID 4380 wrote to memory of 1988	4380	hoanwjke.exe	103
PID 4380 wrote to memory of 1988	4380	hoanwjke.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wylqpgyo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hoanwjke.exe" C:\Windows\SysWOW64\wylqpgyo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wylqpgyo binPath= "C:\Windows\SysWOW64\wylqpgyo\hoanwjke.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wylqpgyo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wylqpgyo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:3208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 784
  2⤵
  - Program crash
  PID:3128

C:\Windows\SysWOW64\wylqpgyo\hoanwjke.exe
C:\Windows\SysWOW64\wylqpgyo\hoanwjke.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1abeceb2c1aa08ae4fe35e09bc2c79d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 532
  2⤵
  - Program crash
  PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3672 -ip 3672
1⤵
PID:1268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4380 -ip 4380
1⤵
PID:1292

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\hoanwjke.exe

Filesize
12.9MB

MD5
9d0cc366810333bb01bbf078ee27f55f

SHA1
a5ff10ca4419f98e22a0ed13af18015d08beadeb

SHA256
aba3f41666fd0b344516c9f96b88c8e570e912302293891c7e8d3bf1e6c296eb

SHA512
22efee7bb23be3950f79976236c777389e2498809b876d5a0620e4056aa28c4e0530fcf0dbc1c89a85803026b596cbeac78d5e08c825ed0c6ceee8e6f6b8e249

Download Submit
memory/1988-14-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/1988-16-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/1988-17-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/3672-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3672-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3672-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3672-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3672-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/3672-1-0x0000000000B50000-0x0000000000C50000-memory.dmp

Filesize
1024KB

Download
memory/4380-11-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/4380-12-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/4380-13-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/4380-19-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads