tofsee | d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4

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 06:30

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General

Target

JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe
Size

238KB
MD5

a35144bc26a7d80d9f1ccc75717c4feb
SHA1

f88f2374ddddd4036a0c149ee3d4631912ac367a
SHA256

d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4
SHA512

b99b7d9b6dff84c61f300c18f30e9c1bf97f1cba022717c67b75f7961ed847f6413138ddc3590376f10e2a92f19b0f5793af1e47a89ef897940358ec01fac657
SSDEEP

3072:57QHNeYxb1NOLvV0hroldaFG98PS6XABIWhVggjcGkNIVqI7sxkgaBChMpZa9uDB:sNeWb3wv2pFG8vABNz7ITsq7igavwVf

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\ywuwwtxu = "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
2728	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\ywuwwtxu\ImagePath = "C:\\Windows\\SysWOW64\\ywuwwtxu\\ewovulwd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2616	ewovulwd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2616 set thread context of 2784	2616	ewovulwd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1540	sc.exe
2808	sc.exe
2804	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	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	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.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	ewovulwd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2396	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	30
PID 2688 wrote to memory of 2396	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	30
PID 2688 wrote to memory of 2396	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	30
PID 2688 wrote to memory of 2396	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	30
PID 2688 wrote to memory of 1840	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	32
PID 2688 wrote to memory of 1840	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	32
PID 2688 wrote to memory of 1840	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	32
PID 2688 wrote to memory of 1840	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	32
PID 2688 wrote to memory of 1540	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	34
PID 2688 wrote to memory of 1540	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	34
PID 2688 wrote to memory of 1540	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	34
PID 2688 wrote to memory of 1540	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	34
PID 2688 wrote to memory of 2808	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	36
PID 2688 wrote to memory of 2808	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	36
PID 2688 wrote to memory of 2808	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	36
PID 2688 wrote to memory of 2808	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	36
PID 2688 wrote to memory of 2804	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	38
PID 2688 wrote to memory of 2804	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	38
PID 2688 wrote to memory of 2804	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	38
PID 2688 wrote to memory of 2804	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	38
PID 2688 wrote to memory of 2728	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	41
PID 2688 wrote to memory of 2728	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	41
PID 2688 wrote to memory of 2728	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	41
PID 2688 wrote to memory of 2728	2688	JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe	41
PID 2616 wrote to memory of 2784	2616	ewovulwd.exe	43
PID 2616 wrote to memory of 2784	2616	ewovulwd.exe	43
PID 2616 wrote to memory of 2784	2616	ewovulwd.exe	43
PID 2616 wrote to memory of 2784	2616	ewovulwd.exe	43
PID 2616 wrote to memory of 2784	2616	ewovulwd.exe	43
PID 2616 wrote to memory of 2784	2616	ewovulwd.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ywuwwtxu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ewovulwd.exe" C:\Windows\SysWOW64\ywuwwtxu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ywuwwtxu binPath= "C:\Windows\SysWOW64\ywuwwtxu\ewovulwd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ywuwwtxu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ywuwwtxu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- 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:2728

C:\Windows\SysWOW64\ywuwwtxu\ewovulwd.exe
C:\Windows\SysWOW64\ywuwwtxu\ewovulwd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d5ba04399baeda12b636b25ff28bb2a3fed82e8fa25e9a2683240685405ebfb4.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- 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:2784

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\ewovulwd.exe

Filesize
12.5MB

MD5
ba30cb6cc50ed74e6314e45d1ed4a795

SHA1
e87006883f5c85b677102267c62283387d5bf745

SHA256
27f2d785a32380dbb6521a48c02abaa428b70de79700ecac299677a1e4896a49

SHA512
ec7e20d009ca3b309bd53f1593be84434dd84b00e50260e0c6525e200b0f67411b1200b3c9143bfbc043f819dc55de3eacbaa2b5cf3477f3c2388b88503daaff

Download Submit
memory/2616-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2688-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2688-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2688-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2688-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2688-1-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2784-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads