tofsee | e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8

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, 09:06

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General

Target

JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe
Size

169KB
MD5

45be4376d6c6903addb6ad864275bcb7
SHA1

e732be614af25f4fa951daf78c4ac329c824caec
SHA256

e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8
SHA512

71ceb49d51d971a0d21c5257cee5f16b604bb5f95bbda983f4f4dbc1ed297e3710428ec25d3512d7eb340462a13430736b400b8210e33aeed4d5d7646cff63bd
SSDEEP

3072:sPnHfTpEBgSJMflwsC7kAobUaKbEOdqSd89MRrGZbZFAR2:unHLpEBgzwpdsUdE2xqMRrGZb

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\pqyqfdbi = "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
2592	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\pqyqfdbi\ImagePath = "C:\\Windows\\SysWOW64\\pqyqfdbi\\crsylwqp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2212	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	crsylwqp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 2212	2576	crsylwqp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2736	sc.exe
2764	sc.exe
2624	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	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	crsylwqp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2784	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	30
PID 2176 wrote to memory of 2784	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	30
PID 2176 wrote to memory of 2784	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	30
PID 2176 wrote to memory of 2784	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	30
PID 2176 wrote to memory of 2808	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	32
PID 2176 wrote to memory of 2808	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	32
PID 2176 wrote to memory of 2808	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	32
PID 2176 wrote to memory of 2808	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	32
PID 2176 wrote to memory of 2736	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	34
PID 2176 wrote to memory of 2736	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	34
PID 2176 wrote to memory of 2736	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	34
PID 2176 wrote to memory of 2736	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	34
PID 2176 wrote to memory of 2764	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	36
PID 2176 wrote to memory of 2764	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	36
PID 2176 wrote to memory of 2764	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	36
PID 2176 wrote to memory of 2764	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	36
PID 2176 wrote to memory of 2624	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	38
PID 2176 wrote to memory of 2624	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	38
PID 2176 wrote to memory of 2624	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	38
PID 2176 wrote to memory of 2624	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	38
PID 2176 wrote to memory of 2592	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	41
PID 2176 wrote to memory of 2592	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	41
PID 2176 wrote to memory of 2592	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	41
PID 2176 wrote to memory of 2592	2176	JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe	41
PID 2576 wrote to memory of 2212	2576	crsylwqp.exe	43
PID 2576 wrote to memory of 2212	2576	crsylwqp.exe	43
PID 2576 wrote to memory of 2212	2576	crsylwqp.exe	43
PID 2576 wrote to memory of 2212	2576	crsylwqp.exe	43
PID 2576 wrote to memory of 2212	2576	crsylwqp.exe	43
PID 2576 wrote to memory of 2212	2576	crsylwqp.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pqyqfdbi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\crsylwqp.exe" C:\Windows\SysWOW64\pqyqfdbi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pqyqfdbi binPath= "C:\Windows\SysWOW64\pqyqfdbi\crsylwqp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pqyqfdbi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pqyqfdbi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- 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:2592

C:\Windows\SysWOW64\pqyqfdbi\crsylwqp.exe
C:\Windows\SysWOW64\pqyqfdbi\crsylwqp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e795596b2e5113cab4a35820e92b959f34d80073f37cad1ed3562f211e78eea8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- 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:2212

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\crsylwqp.exe

Filesize
11.1MB

MD5
469cdd8e5738572155e9174b6efcb6d7

SHA1
56df8f8f4f3ebfb63b4630508ded042cbf4c38a7

SHA256
f444047aa350835553cebb17a916e1d69726aaad58786d93641910bae11768bb

SHA512
97afc6c414b2a189cbb10c7d242f05815b898193d49fc7715cf993c4bcb18666b5d96ecc9ed159e76cbd007087f9b7c1fe3a5e7a94389cf4755ef2b710cc0ba1

Download Submit
memory/2176-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2176-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2176-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2176-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2176-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2176-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2176-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2212-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2212-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2212-13-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2212-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2212-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2576-16-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads