tofsee | e91b0a17ead2c83c4fae8dbf4afbd30afce8d7686b5f2ed1c0790b166878e2d2

Resubmissions

27-10-2024 23:54

241027-3x742svhmh 10

27-10-2024 23:30

241027-3g5nzssnbr 10

Analysis

max time kernel
147s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-10-2024 23:30

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General

Target

768226535e8829a6a546849b0face680_JaffaCakes118.exe
Size

12.9MB
MD5

768226535e8829a6a546849b0face680
SHA1

e212fc31a3ba718726c487d9a29adfe828cc95fa
SHA256

e91b0a17ead2c83c4fae8dbf4afbd30afce8d7686b5f2ed1c0790b166878e2d2
SHA512

b4bb4c569e25d7ee19cba60a3b62ff632107dfdeb4b2e2af6816f8fd55a43167bf6082d8491d2338ecb1257f2c48ff3511211cfec807935560a7d666e90fb12a
SSDEEP

12288:PZlC6v/5oQU6buXH53333333333333333333333333333333333333333333333X:PbjvluXH

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\ebesgfes = "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
2584	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\ebesgfes\ImagePath = "C:\\Windows\\SysWOW64\\ebesgfes\\jdzfqasy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2092	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	jdzfqasy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 2092	2740	jdzfqasy.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2760	sc.exe
2808	sc.exe
2616	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	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	768226535e8829a6a546849b0face680_JaffaCakes118.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	jdzfqasy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 2764	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2764	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2764	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2764	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2700	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	33
PID 1152 wrote to memory of 2700	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	33
PID 1152 wrote to memory of 2700	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	33
PID 1152 wrote to memory of 2700	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	33
PID 1152 wrote to memory of 2760	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	35
PID 1152 wrote to memory of 2760	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	35
PID 1152 wrote to memory of 2760	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	35
PID 1152 wrote to memory of 2760	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	35
PID 1152 wrote to memory of 2808	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	37
PID 1152 wrote to memory of 2808	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	37
PID 1152 wrote to memory of 2808	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	37
PID 1152 wrote to memory of 2808	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	37
PID 1152 wrote to memory of 2616	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	39
PID 1152 wrote to memory of 2616	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	39
PID 1152 wrote to memory of 2616	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	39
PID 1152 wrote to memory of 2616	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	39
PID 1152 wrote to memory of 2584	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	42
PID 1152 wrote to memory of 2584	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	42
PID 1152 wrote to memory of 2584	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	42
PID 1152 wrote to memory of 2584	1152	768226535e8829a6a546849b0face680_JaffaCakes118.exe	42
PID 2740 wrote to memory of 2092	2740	jdzfqasy.exe	44
PID 2740 wrote to memory of 2092	2740	jdzfqasy.exe	44
PID 2740 wrote to memory of 2092	2740	jdzfqasy.exe	44
PID 2740 wrote to memory of 2092	2740	jdzfqasy.exe	44
PID 2740 wrote to memory of 2092	2740	jdzfqasy.exe	44
PID 2740 wrote to memory of 2092	2740	jdzfqasy.exe	44

C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ebesgfes\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jdzfqasy.exe" C:\Windows\SysWOW64\ebesgfes\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ebesgfes binPath= "C:\Windows\SysWOW64\ebesgfes\jdzfqasy.exe /d\"C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ebesgfes "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ebesgfes
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2616
- 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:2584

C:\Windows\SysWOW64\ebesgfes\jdzfqasy.exe
C:\Windows\SysWOW64\ebesgfes\jdzfqasy.exe /d"C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740
- 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:2092

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\jdzfqasy.exe

Filesize
13.5MB

MD5
369235a5dedbb4d4c6a28cb4e7044777

SHA1
96c9f19a6b944467db6fb1b2430adf7d4b181a4c

SHA256
078b48e0dddb8134082248c868edb42b7bb26e997a53cd45bb52f864847880e9

SHA512
a51e1f0345448a050837e4dea6b1b5bf14e68c1f6bda779315466f0e5d670a2a0926c241ee3c73c9c8418b5d2c2e052158958728670989d0df31814ccfa63029

Download Submit
memory/1152-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/1152-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1152-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1152-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1152-9-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2092-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2092-16-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2092-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2092-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2092-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2740-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads