tofsee | e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 04:22

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General

Target

JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe
Size

248KB
MD5

05171687b09ff86dfffe92f4fdd637ef
SHA1

171ae4be69a4c47f11355fffb437eafbfca9f954
SHA256

e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955
SHA512

aec67b38240fb1fe62a9f25ebf385f19ea5246b5822375f6a31a465a6dd6e047a255ff52950723ee650dcd52974b6076c1c4eceb967dcbdc6c62ca770b7b635a
SSDEEP

6144:jyKwDO/FcU545JdF6uzbgwu6QigabwVf:2KwDeFHmdF6unn5

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\dfirvslv = "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
2664	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\dfirvslv\ImagePath = "C:\\Windows\\SysWOW64\\dfirvslv\\jyzfsdxw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3004	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2636	jyzfsdxw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2636 set thread context of 3004	2636	jyzfsdxw.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2660	sc.exe
2796	sc.exe
2168	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_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jyzfsdxw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	31
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	31
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	31
PID 2016 wrote to memory of 1052	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	31
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	33
PID 2016 wrote to memory of 2168	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	35
PID 2016 wrote to memory of 2168	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	35
PID 2016 wrote to memory of 2168	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	35
PID 2016 wrote to memory of 2168	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	35
PID 2016 wrote to memory of 2660	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	37
PID 2016 wrote to memory of 2660	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	37
PID 2016 wrote to memory of 2660	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	37
PID 2016 wrote to memory of 2660	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	37
PID 2016 wrote to memory of 2796	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	39
PID 2016 wrote to memory of 2796	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	39
PID 2016 wrote to memory of 2796	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	39
PID 2016 wrote to memory of 2796	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	39
PID 2016 wrote to memory of 2664	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	42
PID 2016 wrote to memory of 2664	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	42
PID 2016 wrote to memory of 2664	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	42
PID 2016 wrote to memory of 2664	2016	JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe	42
PID 2636 wrote to memory of 3004	2636	jyzfsdxw.exe	44
PID 2636 wrote to memory of 3004	2636	jyzfsdxw.exe	44
PID 2636 wrote to memory of 3004	2636	jyzfsdxw.exe	44
PID 2636 wrote to memory of 3004	2636	jyzfsdxw.exe	44
PID 2636 wrote to memory of 3004	2636	jyzfsdxw.exe	44
PID 2636 wrote to memory of 3004	2636	jyzfsdxw.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dfirvslv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jyzfsdxw.exe" C:\Windows\SysWOW64\dfirvslv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dfirvslv binPath= "C:\Windows\SysWOW64\dfirvslv\jyzfsdxw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dfirvslv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dfirvslv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2664

C:\Windows\SysWOW64\dfirvslv\jyzfsdxw.exe
C:\Windows\SysWOW64\dfirvslv\jyzfsdxw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e58409630e95d8ac57f087d7aff79d8ebe7a9b47e0994d151b43e0f42648e955.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:3004

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\jyzfsdxw.exe

Filesize
14.6MB

MD5
0485605e004723dd6f8f165b32220f4f

SHA1
f795f56a9594cf0ad3b048b67b0b47c1d0c2f8a4

SHA256
3f4ccbbec91fd658008c2d51db7742a97595bb177544112905007fb142dd459b

SHA512
af418ee6108d11b4625e1d8caef9f9f98ffcbc13539ccc7ec2fbe375cdf0d129f16cbe6adac9b490a68f944ca5408bc5482e2466eddbc72aec3e328532a92b70

Download Submit
memory/2016-7-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/2016-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-1-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/2016-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-8-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/2016-0-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/2016-6-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2636-16-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/3004-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3004-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads