tofsee | 72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35

General

Target

72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe
Size

14.5MB
MD5

3cea8daf8028e2f9ef0663cdc9a6ca46
SHA1

ad06cbbe801ef56f3dbd4a61ad0f0f43845f4a4c
SHA256

72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35
SHA512

0851fab798606fd14a26d20a2e7f2b9074ed5e5b5e1ef0dd9d6217c4b87ddd197004ae10eba5d0e678dc213cc5edc826b72fb088e01762411b62a1d7b9c839e9
SSDEEP

196608:gOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOz:S

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
2788	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\kgtzundd\ImagePath = "C:\\Windows\\SysWOW64\\kgtzundd\\pitjurkd.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe

Deletes itself 1 IoCs

pid	Process
5028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4960	pitjurkd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4960 set thread context of 5028	4960	pitjurkd.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2052	sc.exe
3520	sc.exe
4904	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
4944	1104	WerFault.exe	81
4288	4960	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pitjurkd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 3188	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	82
PID 1104 wrote to memory of 3188	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	82
PID 1104 wrote to memory of 3188	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	82
PID 1104 wrote to memory of 5004	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	84
PID 1104 wrote to memory of 5004	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	84
PID 1104 wrote to memory of 5004	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	84
PID 1104 wrote to memory of 2052	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	86
PID 1104 wrote to memory of 2052	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	86
PID 1104 wrote to memory of 2052	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	86
PID 1104 wrote to memory of 3520	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	90
PID 1104 wrote to memory of 3520	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	90
PID 1104 wrote to memory of 3520	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	90
PID 1104 wrote to memory of 4904	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	92
PID 1104 wrote to memory of 4904	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	92
PID 1104 wrote to memory of 4904	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	92
PID 1104 wrote to memory of 2788	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	96
PID 1104 wrote to memory of 2788	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	96
PID 1104 wrote to memory of 2788	1104	72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe	96
PID 4960 wrote to memory of 5028	4960	pitjurkd.exe	102
PID 4960 wrote to memory of 5028	4960	pitjurkd.exe	102
PID 4960 wrote to memory of 5028	4960	pitjurkd.exe	102
PID 4960 wrote to memory of 5028	4960	pitjurkd.exe	102
PID 4960 wrote to memory of 5028	4960	pitjurkd.exe	102

C:\Users\Admin\AppData\Local\Temp\72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe
"C:\Users\Admin\AppData\Local\Temp\72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kgtzundd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3188
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pitjurkd.exe" C:\Windows\SysWOW64\kgtzundd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kgtzundd binPath= "C:\Windows\SysWOW64\kgtzundd\pitjurkd.exe /d\"C:\Users\Admin\AppData\Local\Temp\72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kgtzundd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kgtzundd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4904
- 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:2788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1240
  2⤵
  - Program crash
  PID:4944

C:\Windows\SysWOW64\kgtzundd\pitjurkd.exe
C:\Windows\SysWOW64\kgtzundd\pitjurkd.exe /d"C:\Users\Admin\AppData\Local\Temp\72f4ceffca45d742bc1d5aaac96c81e9f80abc4c1aa6e1a0b3c810a327d5fe35.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 512
  2⤵
  - Program crash
  PID:4288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1104 -ip 1104
1⤵
PID:3460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4960 -ip 4960
1⤵
PID:2356

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\pitjurkd.exe

Filesize
12.7MB

MD5
68ad53170472a241141d3768e4d66ec0

SHA1
bc693318aa0cd9fe053040da1078996b03c2e0dd

SHA256
1d684b3ce8ae3bf1cf219ad5765fcbd3bfe2c3c86f69981971c886af66a9a8e3

SHA512
91eeea0a2b0ddfb64066b0da5386b1df4a91a6c6fd9f136ad044a48c0c3576f866d0dd5bc5080d042f7b1afe911683b40b78f81b69c9d9b1445af666bbceac0d

Download Submit
memory/1104-1-0x0000000003250000-0x0000000003350000-memory.dmp

Filesize
1024KB

Download
memory/1104-2-0x00000000031D0000-0x00000000031E3000-memory.dmp

Filesize
76KB

Download
memory/1104-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1104-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1104-9-0x00000000031D0000-0x00000000031E3000-memory.dmp

Filesize
76KB

Download
memory/1104-8-0x0000000000400000-0x0000000002F11000-memory.dmp

Filesize
43.1MB

Download
memory/4960-15-0x0000000000400000-0x0000000002F11000-memory.dmp

Filesize
43.1MB

Download
memory/5028-11-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/5028-13-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/5028-14-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads