tofsee | 24937b1c78e92abc361eeb03b2572d65ead8621f75449c0c6d2ad86f65acf3b7

Analysis

max time kernel
145s
max time network
116s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07-09-2024 00:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe
Size

13.3MB
MD5

d0bd64760aa59cb9e2cdc6c98e34ae37
SHA1

72161e9916ea883db5dc06bbf4682b7c9394cd6f
SHA256

24937b1c78e92abc361eeb03b2572d65ead8621f75449c0c6d2ad86f65acf3b7
SHA512

01e6cfe3e5c2c259bf995a6d07cc45adf6786452efe37a13ebe450f794c62725c1e10f1fef671f8823b53f23eb375b474312428c4319bf45dc956c50c6404a6e
SSDEEP

6144:z5VCb4QuzFs9pIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzr:18NKFs9p

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\shkksbxm = "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

Processes:

netsh.exe

pid	Process
3048	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\shkksbxm\ImagePath = "C:\\Windows\\SysWOW64\\shkksbxm\\xvcyxgev.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
2924	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

xvcyxgev.exe

pid	Process
2596	xvcyxgev.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

xvcyxgev.exe

description	pid	Process	procid_target
PID 2596 set thread context of 2924	2596	xvcyxgev.exe	41

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2844	sc.exe
2984	sc.exe
2068	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

Processes:

netsh.exe

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

Processes:

sc.exenetsh.exed0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.execmd.exesc.exesc.exexvcyxgev.exesvchost.execmd.exe

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	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.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	xvcyxgev.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

Processes:

d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exexvcyxgev.exe

description	pid	Process	procid_target
PID 1768 wrote to memory of 2044	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	30
PID 1768 wrote to memory of 2044	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	30
PID 1768 wrote to memory of 2044	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	30
PID 1768 wrote to memory of 2044	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	30
PID 1768 wrote to memory of 2428	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	32
PID 1768 wrote to memory of 2428	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	32
PID 1768 wrote to memory of 2428	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	32
PID 1768 wrote to memory of 2428	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	32
PID 1768 wrote to memory of 2844	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	34
PID 1768 wrote to memory of 2844	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	34
PID 1768 wrote to memory of 2844	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	34
PID 1768 wrote to memory of 2844	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	34
PID 1768 wrote to memory of 2984	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	36
PID 1768 wrote to memory of 2984	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	36
PID 1768 wrote to memory of 2984	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	36
PID 1768 wrote to memory of 2984	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	36
PID 1768 wrote to memory of 2068	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	38
PID 1768 wrote to memory of 2068	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	38
PID 1768 wrote to memory of 2068	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	38
PID 1768 wrote to memory of 2068	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	38
PID 2596 wrote to memory of 2924	2596	xvcyxgev.exe	41
PID 2596 wrote to memory of 2924	2596	xvcyxgev.exe	41
PID 2596 wrote to memory of 2924	2596	xvcyxgev.exe	41
PID 2596 wrote to memory of 2924	2596	xvcyxgev.exe	41
PID 2596 wrote to memory of 2924	2596	xvcyxgev.exe	41
PID 2596 wrote to memory of 2924	2596	xvcyxgev.exe	41
PID 1768 wrote to memory of 3048	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	42
PID 1768 wrote to memory of 3048	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	42
PID 1768 wrote to memory of 3048	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	42
PID 1768 wrote to memory of 3048	1768	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	42

C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\shkksbxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xvcyxgev.exe" C:\Windows\SysWOW64\shkksbxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create shkksbxm binPath= "C:\Windows\SysWOW64\shkksbxm\xvcyxgev.exe /d\"C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description shkksbxm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start shkksbxm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2068
- 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:3048

C:\Windows\SysWOW64\shkksbxm\xvcyxgev.exe
C:\Windows\SysWOW64\shkksbxm\xvcyxgev.exe /d"C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- 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:2924

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\xvcyxgev.exe

Filesize
13.6MB

MD5
21295e14eb0ae832c7dfec584e9c60eb

SHA1
df0ed86ceed52dd5cf2cdec56345d267026c013c

SHA256
ee5d05d823c027565aae38fbd6b0a25ea0b468b8d9570d061f26b34cd3b5443c

SHA512
e678cd12a14908d0b70f865120d4858ced350e27db578e6b627d59b035eb8b057da127c284d849ea98a7f6ad705d7f517c499368add1592846b7690ee801ec88

Download Submit
memory/2924-6-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2924-3-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download