tofsee | 30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 10:48

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General

Target

JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe
Size

164KB
MD5

2bb1fbbbed9cc4fadfa75a080379f3fb
SHA1

32c784d175b2c892686d79ef500b3d6a7e286dc9
SHA256

30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c
SHA512

35a409fe79641ad6deeab7176785fb0db9393250fb20f971de0e8ece15dbf20bb36e5593a4b9da0ca1c6c893193aa1a0f160f40c27205dbbbe4dc8bd77d3f409
SSDEEP

3072:nhqXElKGK4Pm2B32eXAH57V3OUQuhS9H6S:ns0l9NXXK7hEa

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\wwdmtyhj = "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
2784	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\wwdmtyhj\ImagePath = "C:\\Windows\\SysWOW64\\wwdmtyhj\\ybucacku.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2892	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	ybucacku.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 2892	2884	ybucacku.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2788	sc.exe
524	sc.exe
2772	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	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ybucacku.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 516 wrote to memory of 2548	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	31
PID 516 wrote to memory of 2548	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	31
PID 516 wrote to memory of 2548	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	31
PID 516 wrote to memory of 2548	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	31
PID 516 wrote to memory of 2040	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	33
PID 516 wrote to memory of 2040	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	33
PID 516 wrote to memory of 2040	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	33
PID 516 wrote to memory of 2040	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	33
PID 516 wrote to memory of 524	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	35
PID 516 wrote to memory of 524	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	35
PID 516 wrote to memory of 524	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	35
PID 516 wrote to memory of 524	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	35
PID 516 wrote to memory of 2772	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	37
PID 516 wrote to memory of 2772	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	37
PID 516 wrote to memory of 2772	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	37
PID 516 wrote to memory of 2772	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	37
PID 516 wrote to memory of 2788	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	39
PID 516 wrote to memory of 2788	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	39
PID 516 wrote to memory of 2788	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	39
PID 516 wrote to memory of 2788	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	39
PID 516 wrote to memory of 2784	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	42
PID 516 wrote to memory of 2784	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	42
PID 516 wrote to memory of 2784	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	42
PID 516 wrote to memory of 2784	516	JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe	42
PID 2884 wrote to memory of 2892	2884	ybucacku.exe	44
PID 2884 wrote to memory of 2892	2884	ybucacku.exe	44
PID 2884 wrote to memory of 2892	2884	ybucacku.exe	44
PID 2884 wrote to memory of 2892	2884	ybucacku.exe	44
PID 2884 wrote to memory of 2892	2884	ybucacku.exe	44
PID 2884 wrote to memory of 2892	2884	ybucacku.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wwdmtyhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ybucacku.exe" C:\Windows\SysWOW64\wwdmtyhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wwdmtyhj binPath= "C:\Windows\SysWOW64\wwdmtyhj\ybucacku.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wwdmtyhj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wwdmtyhj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- 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:2784

C:\Windows\SysWOW64\wwdmtyhj\ybucacku.exe
C:\Windows\SysWOW64\wwdmtyhj\ybucacku.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30f34e11d0cc3ea3aaa86bf43fcc1f93d3bd0b7bfb101b6c4b4180217261874c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- 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:2892

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\ybucacku.exe

Filesize
13.4MB

MD5
3bb445becfa660319a3e5eb7dbd2d4d4

SHA1
26cd67899945ac4074a421f7e8b27ac2805d039a

SHA256
532d4948619fd359c815c1a008234b83360d3a953ee26a06233ced82ee08b96b

SHA512
10b9449fae4a67e8c8428c774742eca0d05aeb0e7855a96fb28d07ba364397817d38af5505964d3263077efd474d1bdf0e75f6b843500d292411a34430969edf

Download Submit
memory/516-3-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/516-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/516-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/516-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/516-9-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2884-17-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2892-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads