tofsee | 5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 23:04

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General

Target

JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe
Size

241KB
MD5

9871085176380a51abb1b692934b263b
SHA1

c1f705ade7c401e98f0507e3c0ac866a8a3671f4
SHA256

5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80
SHA512

c1d3e409c698d942a7a8f4a33e97826e5d5b0d61dfd2522cf271d5a96609e3660672806941db4052a8d72f385a3590fa9a20d987f0e1f9a46579f8c1e31e94d6
SSDEEP

6144:LLHu86jUJP6vgau9NQRFbG6w8uzbgwu6QigabwVf:m86jW6vKNQRFS6bunn5

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

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\rbzubvh = "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
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\rbzubvh\ImagePath = "C:\\Windows\\SysWOW64\\rbzubvh\\yrfrjdfs.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2636	yrfrjdfs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2636 set thread context of 2912	2636	yrfrjdfs.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2672	sc.exe
2736	sc.exe
2128	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	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	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	yrfrjdfs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 1296	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	31
PID 2488 wrote to memory of 1296	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	31
PID 2488 wrote to memory of 1296	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	31
PID 2488 wrote to memory of 1296	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	31
PID 2488 wrote to memory of 2452	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	33
PID 2488 wrote to memory of 2452	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	33
PID 2488 wrote to memory of 2452	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	33
PID 2488 wrote to memory of 2452	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	33
PID 2488 wrote to memory of 2128	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	35
PID 2488 wrote to memory of 2128	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	35
PID 2488 wrote to memory of 2128	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	35
PID 2488 wrote to memory of 2128	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	35
PID 2488 wrote to memory of 2672	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	37
PID 2488 wrote to memory of 2672	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	37
PID 2488 wrote to memory of 2672	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	37
PID 2488 wrote to memory of 2672	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	37
PID 2488 wrote to memory of 2736	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	39
PID 2488 wrote to memory of 2736	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	39
PID 2488 wrote to memory of 2736	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	39
PID 2488 wrote to memory of 2736	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	39
PID 2636 wrote to memory of 2912	2636	yrfrjdfs.exe	43
PID 2636 wrote to memory of 2912	2636	yrfrjdfs.exe	43
PID 2636 wrote to memory of 2912	2636	yrfrjdfs.exe	43
PID 2636 wrote to memory of 2912	2636	yrfrjdfs.exe	43
PID 2636 wrote to memory of 2912	2636	yrfrjdfs.exe	43
PID 2636 wrote to memory of 2912	2636	yrfrjdfs.exe	43
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	42
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	42
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	42
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rbzubvh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yrfrjdfs.exe" C:\Windows\SysWOW64\rbzubvh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rbzubvh binPath= "C:\Windows\SysWOW64\rbzubvh\yrfrjdfs.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rbzubvh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rbzubvh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- 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\rbzubvh\yrfrjdfs.exe
C:\Windows\SysWOW64\rbzubvh\yrfrjdfs.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:2912

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\yrfrjdfs.exe

Filesize
14.5MB

MD5
659eac0fe7c85899724291862797dbf1

SHA1
e02f03a9dc4177443f9acb41fb83fe293f5e024a

SHA256
b28977738f7ec8bd9b57eecb35f33168dc1d479a20b8c1c360d53128bd9a17f5

SHA512
761ca0fa888e8098292d7a4dc3d3a5691177dcf6b0dfcd97277213af667fe14c7c161c6201400cf5ec0f7e5fb2571449b8d6dea24c8f3108af57a89a40ae9c9f

Download Submit
memory/2488-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2488-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2488-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2488-11-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2488-10-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2488-12-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2488-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-16-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2912-6-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2912-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2912-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-9-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2912-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads