tofsee | 809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 16:57

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General

Target

JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe
Size

336KB
MD5

4d7c132fc1fe7e80763fefae0897fe6b
SHA1

213d4abc977acd8c1abce1d68058eb80f2c636bc
SHA256

809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7
SHA512

5769fd49fe477b5f7194c5bdfd7c1bbd1a755f2537702583fcc8e3517dc49d16832ab5be78098b84be5edf9347f2ebc0afd04ad9cc3bead8c0ed4b99c12f4872
SSDEEP

6144:V6lQKGal6xVvGEWZwcsqpyN+1x+OzzXV:kljhl6n+EWZwcfgWx+Ozz

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\yumxzpzm = "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
2560	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\yumxzpzm\ImagePath = "C:\\Windows\\SysWOW64\\yumxzpzm\\lyhefkwj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3060	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	lyhefkwj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 3060	2872	lyhefkwj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2892	sc.exe
2844	sc.exe
2732	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lyhefkwj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2836	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	30
PID 2708 wrote to memory of 2836	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	30
PID 2708 wrote to memory of 2836	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	30
PID 2708 wrote to memory of 2836	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	30
PID 2708 wrote to memory of 2080	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	32
PID 2708 wrote to memory of 2080	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	32
PID 2708 wrote to memory of 2080	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	32
PID 2708 wrote to memory of 2080	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	32
PID 2708 wrote to memory of 2892	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	34
PID 2708 wrote to memory of 2892	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	34
PID 2708 wrote to memory of 2892	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	34
PID 2708 wrote to memory of 2892	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	34
PID 2708 wrote to memory of 2844	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	36
PID 2708 wrote to memory of 2844	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	36
PID 2708 wrote to memory of 2844	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	36
PID 2708 wrote to memory of 2844	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	36
PID 2708 wrote to memory of 2732	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	38
PID 2708 wrote to memory of 2732	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	38
PID 2708 wrote to memory of 2732	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	38
PID 2708 wrote to memory of 2732	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	38
PID 2708 wrote to memory of 2560	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	41
PID 2708 wrote to memory of 2560	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	41
PID 2708 wrote to memory of 2560	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	41
PID 2708 wrote to memory of 2560	2708	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	41
PID 2872 wrote to memory of 3060	2872	lyhefkwj.exe	43
PID 2872 wrote to memory of 3060	2872	lyhefkwj.exe	43
PID 2872 wrote to memory of 3060	2872	lyhefkwj.exe	43
PID 2872 wrote to memory of 3060	2872	lyhefkwj.exe	43
PID 2872 wrote to memory of 3060	2872	lyhefkwj.exe	43
PID 2872 wrote to memory of 3060	2872	lyhefkwj.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yumxzpzm\
  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\lyhefkwj.exe" C:\Windows\SysWOW64\yumxzpzm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yumxzpzm binPath= "C:\Windows\SysWOW64\yumxzpzm\lyhefkwj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yumxzpzm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yumxzpzm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- 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:2560

C:\Windows\SysWOW64\yumxzpzm\lyhefkwj.exe
C:\Windows\SysWOW64\yumxzpzm\lyhefkwj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- 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:3060

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\lyhefkwj.exe

Filesize
10.4MB

MD5
a6fc916430d824f08d5eb1669a9ea77e

SHA1
3a512fd16760d6ee36665eb86c2f5f0027abb810

SHA256
b57a77d76b7ea034bbad527ac8dddbe5557edd5897a93899ae1aa8a123b704af

SHA512
9e005028c50f22e2854b69716bc6e35d519f29e918eba958900dbfc136a78619768c5c7b6e24b8bde2eff5bf3347a2c1add88d5774a3ac372cfee39397cc44f8

Download Submit
memory/2708-2-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/2708-3-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/2708-7-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/2872-13-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/3060-9-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3060-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3060-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3060-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3060-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads