tofsee | 8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22

Analysis

max time kernel
144s
max time network
145s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
28-12-2024 22:09

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General

Target

JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe
Size

234KB
MD5

2a0a210808770119730af347fb5441dc
SHA1

1e7d63a597b09cfa2172404ef6d218a796611e11
SHA256

8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22
SHA512

175942fc9374acad0a6d635ac337c52993e531206f5d62d0f792caba7e3d630c17be160c75e418d885e49e619143436236ef0e69576b9f7d07f3570526af93d7
SSDEEP

6144:gBp+pc7xRkuTLd3Eaed34DekOjM4zmhw7GlsJC:gBp+K7xvd3EaeSKQ4SheJ

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\rrswwtkg = "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
2968	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\rrswwtkg\ImagePath = "C:\\Windows\\SysWOW64\\rrswwtkg\\ugbyfees.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2964	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2280	ugbyfees.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2280 set thread context of 2964	2280	ugbyfees.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2524	sc.exe
2860	sc.exe
2936	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	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.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	ugbyfees.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2792	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	31
PID 2316 wrote to memory of 2792	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	31
PID 2316 wrote to memory of 2792	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	31
PID 2316 wrote to memory of 2792	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	31
PID 2316 wrote to memory of 2296	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	33
PID 2316 wrote to memory of 2296	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	33
PID 2316 wrote to memory of 2296	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	33
PID 2316 wrote to memory of 2296	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	33
PID 2316 wrote to memory of 2524	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	35
PID 2316 wrote to memory of 2524	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	35
PID 2316 wrote to memory of 2524	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	35
PID 2316 wrote to memory of 2524	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	35
PID 2316 wrote to memory of 2860	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	37
PID 2316 wrote to memory of 2860	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	37
PID 2316 wrote to memory of 2860	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	37
PID 2316 wrote to memory of 2860	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	37
PID 2316 wrote to memory of 2936	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	39
PID 2316 wrote to memory of 2936	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	39
PID 2316 wrote to memory of 2936	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	39
PID 2316 wrote to memory of 2936	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	39
PID 2316 wrote to memory of 2968	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	42
PID 2316 wrote to memory of 2968	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	42
PID 2316 wrote to memory of 2968	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	42
PID 2316 wrote to memory of 2968	2316	JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe	42
PID 2280 wrote to memory of 2964	2280	ugbyfees.exe	44
PID 2280 wrote to memory of 2964	2280	ugbyfees.exe	44
PID 2280 wrote to memory of 2964	2280	ugbyfees.exe	44
PID 2280 wrote to memory of 2964	2280	ugbyfees.exe	44
PID 2280 wrote to memory of 2964	2280	ugbyfees.exe	44
PID 2280 wrote to memory of 2964	2280	ugbyfees.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rrswwtkg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ugbyfees.exe" C:\Windows\SysWOW64\rrswwtkg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2296
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rrswwtkg binPath= "C:\Windows\SysWOW64\rrswwtkg\ugbyfees.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rrswwtkg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rrswwtkg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- 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:2968

C:\Windows\SysWOW64\rrswwtkg\ugbyfees.exe
C:\Windows\SysWOW64\rrswwtkg\ugbyfees.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e32eed1fad9d4d0c89e74a2ff9972d9fdf822bc8c87cbd6614c4a25d3219c22.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- 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:2964

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\ugbyfees.exe

Filesize
13.1MB

MD5
4c67fafc8ec46e43e325862cd33408a7

SHA1
8c310e47d5ac671ca6a6472a7a8a0bde03b5100d

SHA256
20477174d1a1903a6eba11b04532ab6aa3a7156cd6ea5ac8f714201cf4aa606e

SHA512
29c0c5b56a58d39abd06936406723c70fd0609a20e741eba51d5336aeb505cb3325ebc585215890a579657afba19400f064f2b66188307af640271a60ddef4b3

Download Submit
memory/2280-16-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2316-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2316-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2316-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2316-1-0x0000000000970000-0x0000000000A70000-memory.dmp

Filesize
1024KB

Download
memory/2316-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2964-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2964-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads