tofsee | c4fdbc34a56a748b5a2917ed301431ae54d1029932cd818daac36a966d89be97

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 17:02

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General

Target

ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe
Size

10.4MB
MD5

ce18e46cb33ce2d73e3c0e138f831364
SHA1

8a8faa684a50d23e42b733b69ddc994d5679438d
SHA256

c4fdbc34a56a748b5a2917ed301431ae54d1029932cd818daac36a966d89be97
SHA512

e55e8200161b86cf1f557dfc8e46bb66e49702b7d0f9168451c38ada22f17382bd966a932725e46d293b7202b26f38493a3a1d2de5ef9b880b8533dfea8e2a8c
SSDEEP

49152:BuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuW:

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\gnhvyhle = "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
3060	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\gnhvyhle\ImagePath = "C:\\Windows\\SysWOW64\\gnhvyhle\\wfrxhcyo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
580	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2656	wfrxhcyo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 580	2656	wfrxhcyo.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2308	sc.exe
2600	sc.exe
2720	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wfrxhcyo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 2184	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	30
PID 2856 wrote to memory of 2184	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	30
PID 2856 wrote to memory of 2184	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	30
PID 2856 wrote to memory of 2184	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	30
PID 2856 wrote to memory of 2136	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	32
PID 2856 wrote to memory of 2136	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	32
PID 2856 wrote to memory of 2136	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	32
PID 2856 wrote to memory of 2136	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	32
PID 2856 wrote to memory of 2720	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	34
PID 2856 wrote to memory of 2720	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	34
PID 2856 wrote to memory of 2720	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	34
PID 2856 wrote to memory of 2720	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	34
PID 2856 wrote to memory of 2308	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	36
PID 2856 wrote to memory of 2308	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	36
PID 2856 wrote to memory of 2308	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	36
PID 2856 wrote to memory of 2308	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	36
PID 2856 wrote to memory of 2600	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	38
PID 2856 wrote to memory of 2600	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	38
PID 2856 wrote to memory of 2600	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	38
PID 2856 wrote to memory of 2600	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	38
PID 2856 wrote to memory of 3060	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	41
PID 2856 wrote to memory of 3060	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	41
PID 2856 wrote to memory of 3060	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	41
PID 2856 wrote to memory of 3060	2856	ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe	41
PID 2656 wrote to memory of 580	2656	wfrxhcyo.exe	43
PID 2656 wrote to memory of 580	2656	wfrxhcyo.exe	43
PID 2656 wrote to memory of 580	2656	wfrxhcyo.exe	43
PID 2656 wrote to memory of 580	2656	wfrxhcyo.exe	43
PID 2656 wrote to memory of 580	2656	wfrxhcyo.exe	43
PID 2656 wrote to memory of 580	2656	wfrxhcyo.exe	43

C:\Users\Admin\AppData\Local\Temp\ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gnhvyhle\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wfrxhcyo.exe" C:\Windows\SysWOW64\gnhvyhle\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gnhvyhle binPath= "C:\Windows\SysWOW64\gnhvyhle\wfrxhcyo.exe /d\"C:\Users\Admin\AppData\Local\Temp\ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gnhvyhle "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2308
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gnhvyhle
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2600
- 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:3060

C:\Windows\SysWOW64\gnhvyhle\wfrxhcyo.exe
C:\Windows\SysWOW64\gnhvyhle\wfrxhcyo.exe /d"C:\Users\Admin\AppData\Local\Temp\ce18e46cb33ce2d73e3c0e138f831364_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- 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:580

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\wfrxhcyo.exe

Filesize
10.5MB

MD5
72c4f468596facb77388bed8584ac2f1

SHA1
c2816cead50ecd3e340f1bec53df91fddd53ac33

SHA256
5feb406adfaad8ec9888f6c5dcc329429c64ca16a98289df3653635edd69e180

SHA512
b0dbd92794e1fb101bdf6f8b767670ed7c1538f8feef5766638f641cd955a947af4cad8ec6091b2fc98cbac43cbcba925c85f27f01603a17beed78ed016febd2

Download Submit
memory/580-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/580-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/580-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/580-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/580-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2656-17-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/2856-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2856-1-0x0000000002DA0000-0x0000000002EA0000-memory.dmp

Filesize
1024KB

Download
memory/2856-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2856-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2856-8-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/2856-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads