tofsee | 46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 22:42

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General

Target

JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe
Size

355KB
MD5

0705d8a26643fda3847892650df6b7fe
SHA1

98513720a0866476912fda3ae473292fa02e1a38
SHA256

46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec
SHA512

1fc018bf6e9aa0eebe4164b4c18849fa65b6d97c5a93901c4d677f40a815454ecea2066c93fe7d9f3767e9947117baf4e7218a7f8dab640fd9929242142253aa
SSDEEP

6144:sXwE2Igd4E7jIujAab5azd2ne001GeyOoYDXVQCVyXFEL:sAEUMKAab5azd+e0MGeyOoyVnVyg

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\oybyknqb = "0"	svchost.exe

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
2088	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\oybyknqb\ImagePath = "C:\\Windows\\SysWOW64\\oybyknqb\\gnqoppft.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	gnqoppft.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 2724	2704	gnqoppft.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
2596	sc.exe
2804	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

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	netsh.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gnqoppft.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2336	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	29
PID 2524 wrote to memory of 2336	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	29
PID 2524 wrote to memory of 2336	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	29
PID 2524 wrote to memory of 2336	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	29
PID 2524 wrote to memory of 2368	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	31
PID 2524 wrote to memory of 2368	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	31
PID 2524 wrote to memory of 2368	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	31
PID 2524 wrote to memory of 2368	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	31
PID 2524 wrote to memory of 2804	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	33
PID 2524 wrote to memory of 2804	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	33
PID 2524 wrote to memory of 2804	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	33
PID 2524 wrote to memory of 2804	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	33
PID 2524 wrote to memory of 2864	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	35
PID 2524 wrote to memory of 2864	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	35
PID 2524 wrote to memory of 2864	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	35
PID 2524 wrote to memory of 2864	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	35
PID 2524 wrote to memory of 2596	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	37
PID 2524 wrote to memory of 2596	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	37
PID 2524 wrote to memory of 2596	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	37
PID 2524 wrote to memory of 2596	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	37
PID 2524 wrote to memory of 2088	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	40
PID 2524 wrote to memory of 2088	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	40
PID 2524 wrote to memory of 2088	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	40
PID 2524 wrote to memory of 2088	2524	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	40
PID 2704 wrote to memory of 2724	2704	gnqoppft.exe	42
PID 2704 wrote to memory of 2724	2704	gnqoppft.exe	42
PID 2704 wrote to memory of 2724	2704	gnqoppft.exe	42
PID 2704 wrote to memory of 2724	2704	gnqoppft.exe	42
PID 2704 wrote to memory of 2724	2704	gnqoppft.exe	42
PID 2704 wrote to memory of 2724	2704	gnqoppft.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oybyknqb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gnqoppft.exe" C:\Windows\SysWOW64\oybyknqb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oybyknqb binPath= "C:\Windows\SysWOW64\oybyknqb\gnqoppft.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oybyknqb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oybyknqb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2596
- 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:2088

C:\Windows\SysWOW64\oybyknqb\gnqoppft.exe
C:\Windows\SysWOW64\oybyknqb\gnqoppft.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\gnqoppft.exe

Filesize
10.7MB

MD5
b84781b4984609c44651965c6900959e

SHA1
e06739101f886b69f088af9df15623e86bdfe792

SHA256
e0b0b06d2bb0bffd4df94c7c72d67a9152410daf2e35b0d08c851dafbd23d3a4

SHA512
d12dfa5941a9bf551c1ea3619bc835c2c3253a9c8b05b0eb4c7c86ccfc2d47a997f2ddaa7e1739eb8e857c674a9024b77467598104719f4a730e6b7ad8e590a1

Download Submit
memory/2524-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2524-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2524-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2524-8-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/2524-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2524-1-0x0000000001830000-0x0000000001930000-memory.dmp

Filesize
1024KB

Download
memory/2704-15-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/2724-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads