tofsee | 0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31

General

Target

JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe
Size

234KB
MD5

ad35ddf418ee1bd6e9c1712b7bab8be5
SHA1

a8a1043d95899c7fb963a34c714ec5e36dfe0dd1
SHA256

0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31
SHA512

c1abe07ca92939fc1cb3269da861894a032c44501b70412831e58d4ce6993618e4d85430ba18b69e280b3dd85e04d8783c24a70207d9ae9e373704ee8ce3c70d
SSDEEP

6144:bBJefRbR6k2TL93Ca+yEfGv9HJyn+Hv4X:bBJeZbRs93Ca+lGv9H1gX

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
4256	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\zhxvdkom\ImagePath = "C:\\Windows\\SysWOW64\\zhxvdkom\\vlgsmycu.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe

Deletes itself 1 IoCs

pid	Process
1748	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3316	vlgsmycu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3316 set thread context of 1748	3316	vlgsmycu.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1984	sc.exe
3576	sc.exe
4060	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
2096	4828	WerFault.exe	82
4988	3316	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	vlgsmycu.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 1664	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	83
PID 4828 wrote to memory of 1664	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	83
PID 4828 wrote to memory of 1664	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	83
PID 4828 wrote to memory of 2640	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	85
PID 4828 wrote to memory of 2640	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	85
PID 4828 wrote to memory of 2640	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	85
PID 4828 wrote to memory of 1984	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	87
PID 4828 wrote to memory of 1984	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	87
PID 4828 wrote to memory of 1984	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	87
PID 4828 wrote to memory of 3576	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	90
PID 4828 wrote to memory of 3576	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	90
PID 4828 wrote to memory of 3576	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	90
PID 4828 wrote to memory of 4060	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	92
PID 4828 wrote to memory of 4060	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	92
PID 4828 wrote to memory of 4060	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	92
PID 4828 wrote to memory of 4256	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	95
PID 4828 wrote to memory of 4256	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	95
PID 4828 wrote to memory of 4256	4828	JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe	95
PID 3316 wrote to memory of 1748	3316	vlgsmycu.exe	101
PID 3316 wrote to memory of 1748	3316	vlgsmycu.exe	101
PID 3316 wrote to memory of 1748	3316	vlgsmycu.exe	101
PID 3316 wrote to memory of 1748	3316	vlgsmycu.exe	101
PID 3316 wrote to memory of 1748	3316	vlgsmycu.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zhxvdkom\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vlgsmycu.exe" C:\Windows\SysWOW64\zhxvdkom\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zhxvdkom binPath= "C:\Windows\SysWOW64\zhxvdkom\vlgsmycu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zhxvdkom "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zhxvdkom
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4060
- 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:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 1264
  2⤵
  - Program crash
  PID:2096

C:\Windows\SysWOW64\zhxvdkom\vlgsmycu.exe
C:\Windows\SysWOW64\zhxvdkom\vlgsmycu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0164a89f5ce7d86f2fe0503d3c4c39f912ea372b5197b65c0a0b8f8e3dbadd31.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 512
  2⤵
  - Program crash
  PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4828 -ip 4828
1⤵
PID:4476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3316 -ip 3316
1⤵
PID:2232

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\vlgsmycu.exe

Filesize
12.9MB

MD5
b66456e195f6295c699df80b4c99f4dc

SHA1
170d8700826fb45de86585394fb80e50f6e9b0a5

SHA256
6dfb78171c0e50236ca4a941144af477a867e20401e732fdb77068504f60b448

SHA512
f15238dd78ea79f8093e8cd931802da43732419b7b17bc409197bfb63ed74c6337c925ffa1c8244a1b53dbdaa95b7c04388fbf31dc9f8b9863ad5f7cc4588338

Download Submit
memory/1748-13-0x0000000000480000-0x0000000000495000-memory.dmp

Filesize
84KB

Download
memory/1748-15-0x0000000000480000-0x0000000000495000-memory.dmp

Filesize
84KB

Download
memory/1748-19-0x0000000000480000-0x0000000000495000-memory.dmp

Filesize
84KB

Download
memory/3316-11-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/3316-12-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/3316-16-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/3316-18-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/4828-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4828-2-0x0000000000B10000-0x0000000000B23000-memory.dmp

Filesize
76KB

Download
memory/4828-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4828-9-0x0000000000B10000-0x0000000000B23000-memory.dmp

Filesize
76KB

Download
memory/4828-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/4828-1-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads