tofsee | 06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 23:34

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General

Target

JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe
Size

237KB
MD5

a8e1e66bdfc7d5f1f1eb757ac9686f22
SHA1

b7328c79b0abdfc31025b6a9f8eec0055d0a87b9
SHA256

06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b
SHA512

9f59d72958342d0224d9d3bc1658ab40352e41c341e85766b45295068d433fe2237f065774aa402cebb749c3498434831f303161f7a8ceaa2f5c9454f4099d3d
SSDEEP

6144:+X2ED6j2XJ21RnZKA/CBph7ITsq7igavwVf:+X246iXcZK5h79

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\fkydsnyw = "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
2056	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\fkydsnyw\ImagePath = "C:\\Windows\\SysWOW64\\fkydsnyw\\gvwcpaut.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
448	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1660	gvwcpaut.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1660 set thread context of 448	1660	gvwcpaut.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2840	sc.exe
2932	sc.exe
2748	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_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.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	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	gvwcpaut.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2836	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	30
PID 2828 wrote to memory of 2836	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	30
PID 2828 wrote to memory of 2836	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	30
PID 2828 wrote to memory of 2836	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	30
PID 2828 wrote to memory of 2940	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	32
PID 2828 wrote to memory of 2940	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	32
PID 2828 wrote to memory of 2940	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	32
PID 2828 wrote to memory of 2940	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	32
PID 2828 wrote to memory of 2840	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	34
PID 2828 wrote to memory of 2840	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	34
PID 2828 wrote to memory of 2840	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	34
PID 2828 wrote to memory of 2840	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	34
PID 2828 wrote to memory of 2932	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	36
PID 2828 wrote to memory of 2932	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	36
PID 2828 wrote to memory of 2932	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	36
PID 2828 wrote to memory of 2932	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	36
PID 2828 wrote to memory of 2748	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	38
PID 2828 wrote to memory of 2748	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	38
PID 2828 wrote to memory of 2748	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	38
PID 2828 wrote to memory of 2748	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	38
PID 2828 wrote to memory of 2056	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	41
PID 2828 wrote to memory of 2056	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	41
PID 2828 wrote to memory of 2056	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	41
PID 2828 wrote to memory of 2056	2828	JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe	41
PID 1660 wrote to memory of 448	1660	gvwcpaut.exe	43
PID 1660 wrote to memory of 448	1660	gvwcpaut.exe	43
PID 1660 wrote to memory of 448	1660	gvwcpaut.exe	43
PID 1660 wrote to memory of 448	1660	gvwcpaut.exe	43
PID 1660 wrote to memory of 448	1660	gvwcpaut.exe	43
PID 1660 wrote to memory of 448	1660	gvwcpaut.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fkydsnyw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gvwcpaut.exe" C:\Windows\SysWOW64\fkydsnyw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fkydsnyw binPath= "C:\Windows\SysWOW64\fkydsnyw\gvwcpaut.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fkydsnyw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fkydsnyw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2056

C:\Windows\SysWOW64\fkydsnyw\gvwcpaut.exe
C:\Windows\SysWOW64\fkydsnyw\gvwcpaut.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06850f2d0142e810f57813c7c913a4e12b4c9469faf9056bc451cc31740cf96b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1660
- 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:448

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\gvwcpaut.exe

Filesize
14.3MB

MD5
08aaaf723f9a87046befb0b838ad5ac8

SHA1
c21c9642f4b6fd67fc79f5286f230089d16e10cf

SHA256
216a9b91ccc9daff238f0ba15427633be99987a688fc1c42b2a6c2d325396675

SHA512
d278a09fffb63990f35951d4b44ce59d807a145253ecfe277ddb8067b93f13018cac59dbfd22c17053bab7f24c6824ac2d0435194114a496667357f4c378939b

Download Submit
memory/448-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/448-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/448-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/448-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/448-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/448-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1660-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2828-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2828-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2828-8-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2828-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2828-7-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2828-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2828-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads