tofsee | df8d530ece00c2099eca123d50c6854ae0fc11fc69756e3fc6b7940e6c9583c4

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 08:57

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General

Target

e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe
Size

12.9MB
MD5

e5a1f80633af2e489a335603dcdce8a1
SHA1

17ee8592e4a2a79b135af7b285a0d12261e0dcb8
SHA256

df8d530ece00c2099eca123d50c6854ae0fc11fc69756e3fc6b7940e6c9583c4
SHA512

3444afa24abba60b3b0d1e7efca97a0008c90ca7b65a5f97d70dacb1c7d912b5c7086637332b8bfb7a485e3c25048c5b618cb650a5d0724a8186fb3775aa7ef0
SSDEEP

49152:c2mNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN:p

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\xisrira = "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
2232	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\xisrira\ImagePath = "C:\\Windows\\SysWOW64\\xisrira\\tadbccsg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2992	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2732	tadbccsg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 2992	2732	tadbccsg.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2760	sc.exe
2108	sc.exe
2832	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tadbccsg.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	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2036	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2036	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2036	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2036	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2360	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2360	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2360	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2360	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2108	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2108	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2108	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2108	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2832	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2832	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2832	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2832	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2760	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2760	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2760	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2760	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2232	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	42
PID 2688 wrote to memory of 2232	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	42
PID 2688 wrote to memory of 2232	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	42
PID 2688 wrote to memory of 2232	2688	e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe	42
PID 2732 wrote to memory of 2992	2732	tadbccsg.exe	44
PID 2732 wrote to memory of 2992	2732	tadbccsg.exe	44
PID 2732 wrote to memory of 2992	2732	tadbccsg.exe	44
PID 2732 wrote to memory of 2992	2732	tadbccsg.exe	44
PID 2732 wrote to memory of 2992	2732	tadbccsg.exe	44
PID 2732 wrote to memory of 2992	2732	tadbccsg.exe	44

C:\Users\Admin\AppData\Local\Temp\e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.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\xisrira\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tadbccsg.exe" C:\Windows\SysWOW64\xisrira\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2360
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xisrira binPath= "C:\Windows\SysWOW64\xisrira\tadbccsg.exe /d\"C:\Users\Admin\AppData\Local\Temp\e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xisrira "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xisrira
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- 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:2232

C:\Windows\SysWOW64\xisrira\tadbccsg.exe
C:\Windows\SysWOW64\xisrira\tadbccsg.exe /d"C:\Users\Admin\AppData\Local\Temp\e5a1f80633af2e489a335603dcdce8a1_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- 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:2992

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\tadbccsg.exe

Filesize
14.3MB

MD5
1ee5a7ba0452009de17fe508cf585ea2

SHA1
04c92f01888bb799c40b7002ce73a45cf2434ebe

SHA256
4895be94a5e9295b16001e84e03b01f81977de8873909f91d9d99164dc81e0f7

SHA512
ed5ff332fb3f794716330cea15b7f18f4891f2e8b850a3a199caa2bdda9b44fdee75660eaa0b755224f5f50292de5f774307b6a0121039e73a5cd340b01d139b

Download Submit
memory/2688-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2688-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-1-0x0000000000910000-0x0000000000A10000-memory.dmp

Filesize
1024KB

Download
memory/2688-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2688-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2732-15-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2992-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2992-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads