tofsee | af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 19:33

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General

Target

JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe
Size

285KB
MD5

bcc4ff63af0ec0bcaa60c0b61e9ab907
SHA1

19fcbbe86401616de1f67d98c6b2408b2ab59c44
SHA256

af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9
SHA512

73c03a33b006ea88790ef783a5c2506112a305e001a39e32dc4843713d1f11b06aa79a7e861f1742587f21da32b265de256b59bee5702014b4527bd08767ec36
SSDEEP

6144:aQ+PY2mV3OB8uzbgwu6L7ITsqSigaTwVf:aQ+PY2aU8unnn7s

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\ylmdefrp = "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
3008	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\ylmdefrp\ImagePath = "C:\\Windows\\SysWOW64\\ylmdefrp\\gyqxwnyf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2776	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	gyqxwnyf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 2776	2768	gyqxwnyf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1644	sc.exe
2756	sc.exe
2872	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gyqxwnyf.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 320	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	30
PID 1724 wrote to memory of 320	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	30
PID 1724 wrote to memory of 320	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	30
PID 1724 wrote to memory of 320	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	30
PID 1724 wrote to memory of 2160	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	32
PID 1724 wrote to memory of 2160	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	32
PID 1724 wrote to memory of 2160	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	32
PID 1724 wrote to memory of 2160	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	32
PID 1724 wrote to memory of 1644	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	34
PID 1724 wrote to memory of 1644	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	34
PID 1724 wrote to memory of 1644	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	34
PID 1724 wrote to memory of 1644	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	34
PID 1724 wrote to memory of 2756	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	36
PID 1724 wrote to memory of 2756	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	36
PID 1724 wrote to memory of 2756	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	36
PID 1724 wrote to memory of 2756	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	36
PID 1724 wrote to memory of 2872	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	38
PID 1724 wrote to memory of 2872	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	38
PID 1724 wrote to memory of 2872	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	38
PID 1724 wrote to memory of 2872	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	38
PID 1724 wrote to memory of 3008	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	41
PID 1724 wrote to memory of 3008	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	41
PID 1724 wrote to memory of 3008	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	41
PID 1724 wrote to memory of 3008	1724	JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe	41
PID 2768 wrote to memory of 2776	2768	gyqxwnyf.exe	43
PID 2768 wrote to memory of 2776	2768	gyqxwnyf.exe	43
PID 2768 wrote to memory of 2776	2768	gyqxwnyf.exe	43
PID 2768 wrote to memory of 2776	2768	gyqxwnyf.exe	43
PID 2768 wrote to memory of 2776	2768	gyqxwnyf.exe	43
PID 2768 wrote to memory of 2776	2768	gyqxwnyf.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ylmdefrp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gyqxwnyf.exe" C:\Windows\SysWOW64\ylmdefrp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ylmdefrp binPath= "C:\Windows\SysWOW64\ylmdefrp\gyqxwnyf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ylmdefrp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ylmdefrp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- 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:3008

C:\Windows\SysWOW64\ylmdefrp\gyqxwnyf.exe
C:\Windows\SysWOW64\ylmdefrp\gyqxwnyf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af156aab5e1b36293628c763312753054b489c3fbc30aa9f1efbde788e5ef6a9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- 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:2776

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\gyqxwnyf.exe

Filesize
11.0MB

MD5
f80b726f72499b331f52be8e13e40b17

SHA1
66098badd272eeb313a9db73966ee15ac65b0c45

SHA256
7e65cc26da4dce24d1edafd5cad9a16264ef79b78c187e4b3336a52987887881

SHA512
f3727037d3f9ee2dc951feb58468618eff0aedb78dbdcc5322ca2ed40a46b500e8f05be015903d17f8a9ab26a7b90ecbcea47bf22c925353e8f3f15b493393cb

Download Submit
memory/1724-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/1724-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1724-1-0x00000000003E0000-0x00000000003F3000-memory.dmp

Filesize
76KB

Download
memory/1724-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1724-8-0x00000000003E0000-0x00000000003F3000-memory.dmp

Filesize
76KB

Download
memory/1724-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/1724-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2768-16-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2776-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads