tofsee | 7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5

Analysis

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

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 06:17

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General

Target

JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe
Size

157KB
MD5

f4ee0f9e8df042e8b15e4a76f32f192c
SHA1

febf45838fa43fbd92a8f70f4aa6a2474b109299
SHA256

7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5
SHA512

8484b9fbf80954c88a84d171b164d5c5b6bf5aa73d89aaaf70d145266f9894d890dd133ffc931161d465dd61df239b7fd417b56e582cae79786fc67630eb31ea
SSDEEP

1536:1IMFilYA4z/FeSs9UC34tWAvBnjraPnsWOw9ZCqLvg8fL30bw5A9jOYM6otnkEM:qSxItjItvwjOqCqLv138jWodRDvE

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\uiwpttxh = "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
2396	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\uiwpttxh\ImagePath = "C:\\Windows\\SysWOW64\\uiwpttxh\\zedbrxgv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	zedbrxgv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2820	2784	zedbrxgv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1616	sc.exe
2352	sc.exe
2164	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	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zedbrxgv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 300	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	30
PID 1500 wrote to memory of 300	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	30
PID 1500 wrote to memory of 300	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	30
PID 1500 wrote to memory of 300	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	30
PID 1500 wrote to memory of 1988	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	32
PID 1500 wrote to memory of 1988	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	32
PID 1500 wrote to memory of 1988	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	32
PID 1500 wrote to memory of 1988	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	32
PID 1500 wrote to memory of 1616	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	34
PID 1500 wrote to memory of 1616	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	34
PID 1500 wrote to memory of 1616	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	34
PID 1500 wrote to memory of 1616	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	34
PID 1500 wrote to memory of 2352	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	36
PID 1500 wrote to memory of 2352	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	36
PID 1500 wrote to memory of 2352	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	36
PID 1500 wrote to memory of 2352	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	36
PID 1500 wrote to memory of 2164	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	38
PID 1500 wrote to memory of 2164	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	38
PID 1500 wrote to memory of 2164	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	38
PID 1500 wrote to memory of 2164	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	38
PID 1500 wrote to memory of 2396	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	41
PID 1500 wrote to memory of 2396	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	41
PID 1500 wrote to memory of 2396	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	41
PID 1500 wrote to memory of 2396	1500	JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe	41
PID 2784 wrote to memory of 2820	2784	zedbrxgv.exe	43
PID 2784 wrote to memory of 2820	2784	zedbrxgv.exe	43
PID 2784 wrote to memory of 2820	2784	zedbrxgv.exe	43
PID 2784 wrote to memory of 2820	2784	zedbrxgv.exe	43
PID 2784 wrote to memory of 2820	2784	zedbrxgv.exe	43
PID 2784 wrote to memory of 2820	2784	zedbrxgv.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uiwpttxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zedbrxgv.exe" C:\Windows\SysWOW64\uiwpttxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uiwpttxh binPath= "C:\Windows\SysWOW64\uiwpttxh\zedbrxgv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uiwpttxh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uiwpttxh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2164
- 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:2396

C:\Windows\SysWOW64\uiwpttxh\zedbrxgv.exe
C:\Windows\SysWOW64\uiwpttxh\zedbrxgv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7eb1eb8b4e1456be837edf6d08e94bd7eb01c55b4dccbd36af5437e2ff0e18d5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2820

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\zedbrxgv.exe

Filesize
11.1MB

MD5
f880e6d5e3f2b772b209767a66c14485

SHA1
fd681248914e9e77a675b1d0dbb83b06a857b7e6

SHA256
b0f06ce8ceb84cbefd7961fff16052ba51869c98be2f332a3101e46b28259c56

SHA512
56723469e7bd47a0badfd51ca379ac423b8eb1b64634fe966a1249f99384227ca029bdc24e163711e55e262a92f6721c194d67627c8c5a4f430f61fdfad02c51

Download Submit
memory/1500-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/1500-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1500-1-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1500-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1500-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1500-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/1500-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2784-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2820-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads