tofsee | 711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 13:17

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General

Target

JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe
Size

328KB
MD5

0011b607f6708b1c582cfd6775142bc1
SHA1

96fbcf5c5316e23f258513c1dd4486e0cb9aca5d
SHA256

711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae
SHA512

0afead70fa35124ca60f71961df077948bcead68ab101042934695726cffe5bdd85fd3a4493f953496747a17f6635aa956a22ac9452f49e772599303e2e2214d
SSDEEP

6144:os0VP7IpmXLkbvHlO3x1lDKIFkoZLlSpArU:ofbWvQ3x1ltFdZE

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\yvmwjvbx = "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
2700	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\yvmwjvbx\ImagePath = "C:\\Windows\\SysWOW64\\yvmwjvbx\\djehqzzu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
448	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2628	djehqzzu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 448	2628	djehqzzu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2884	sc.exe
2632	sc.exe
2572	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	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	djehqzzu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2888	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	30
PID 2824 wrote to memory of 2888	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	30
PID 2824 wrote to memory of 2888	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	30
PID 2824 wrote to memory of 2888	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	30
PID 2824 wrote to memory of 2812	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	32
PID 2824 wrote to memory of 2812	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	32
PID 2824 wrote to memory of 2812	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	32
PID 2824 wrote to memory of 2812	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	32
PID 2824 wrote to memory of 2884	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	34
PID 2824 wrote to memory of 2884	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	34
PID 2824 wrote to memory of 2884	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	34
PID 2824 wrote to memory of 2884	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	34
PID 2824 wrote to memory of 2632	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	36
PID 2824 wrote to memory of 2632	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	36
PID 2824 wrote to memory of 2632	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	36
PID 2824 wrote to memory of 2632	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	36
PID 2824 wrote to memory of 2572	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	38
PID 2824 wrote to memory of 2572	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	38
PID 2824 wrote to memory of 2572	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	38
PID 2824 wrote to memory of 2572	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	38
PID 2824 wrote to memory of 2700	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	41
PID 2824 wrote to memory of 2700	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	41
PID 2824 wrote to memory of 2700	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	41
PID 2824 wrote to memory of 2700	2824	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	41
PID 2628 wrote to memory of 448	2628	djehqzzu.exe	43
PID 2628 wrote to memory of 448	2628	djehqzzu.exe	43
PID 2628 wrote to memory of 448	2628	djehqzzu.exe	43
PID 2628 wrote to memory of 448	2628	djehqzzu.exe	43
PID 2628 wrote to memory of 448	2628	djehqzzu.exe	43
PID 2628 wrote to memory of 448	2628	djehqzzu.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yvmwjvbx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\djehqzzu.exe" C:\Windows\SysWOW64\yvmwjvbx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yvmwjvbx binPath= "C:\Windows\SysWOW64\yvmwjvbx\djehqzzu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yvmwjvbx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yvmwjvbx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2572
- 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:2700

C:\Windows\SysWOW64\yvmwjvbx\djehqzzu.exe
C:\Windows\SysWOW64\yvmwjvbx\djehqzzu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2628
- 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\djehqzzu.exe

Filesize
10.9MB

MD5
c353e41eaa4bb0fbe613a6f6481fa075

SHA1
a1b651de56ab039d5a97c2f2743fddddf3117f81

SHA256
b7aa7d13cfef3037f4aa5bbfd22838778035306cb9878f38b0719c13d8e3503c

SHA512
5decea3c34cec3e61f34e30d5c41197097a25c2c63fb276d2570583f5652b6efedc69b4997da793296a75b52fde0e3c8fabb27140691792f922a4c001d3b3309

Download Submit
memory/448-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/448-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/448-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/448-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/448-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-15-0x0000000000400000-0x0000000002779000-memory.dmp

Filesize
35.5MB

Download
memory/2824-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2824-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-7-0x0000000000400000-0x0000000002779000-memory.dmp

Filesize
35.5MB

Download
memory/2824-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2824-1-0x00000000028E0000-0x00000000029E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads