tofsee | ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411

Analysis

max time kernel
146s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 18:00

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General

Target

JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe
Size

14.3MB
MD5

2d357e20218ecce7a188d34e2163ac1c
SHA1

1a5bf816db5c146b3b685fdb28c3761608fdfef4
SHA256

ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411
SHA512

59d6d72c15003acd59936ad400a1d1d465c1d109e9c7360f14603c709679e1fddabfae87252fbb0829fad05fa668deca594715d4775bb2fa9b04af776a7fb182
SSDEEP

6144:uM0Em6Qk5N3Sccccccccccccccccccccccccccccccccccccccccccccccccccc8:oEma

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
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\rfufhzvo = "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
3020	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\rfufhzvo\ImagePath = "C:\\Windows\\SysWOW64\\rfufhzvo\\oonteszc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2796	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	oonteszc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 2796	2768	oonteszc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2960	sc.exe
2328	sc.exe
1648	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oonteszc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2212	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	30
PID 2124 wrote to memory of 2212	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	30
PID 2124 wrote to memory of 2212	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	30
PID 2124 wrote to memory of 2212	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	30
PID 2124 wrote to memory of 2880	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	32
PID 2124 wrote to memory of 2880	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	32
PID 2124 wrote to memory of 2880	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	32
PID 2124 wrote to memory of 2880	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	32
PID 2124 wrote to memory of 2960	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	34
PID 2124 wrote to memory of 2960	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	34
PID 2124 wrote to memory of 2960	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	34
PID 2124 wrote to memory of 2960	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	34
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	36
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	36
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	36
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	36
PID 2124 wrote to memory of 1648	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	38
PID 2124 wrote to memory of 1648	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	38
PID 2124 wrote to memory of 1648	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	38
PID 2124 wrote to memory of 1648	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	38
PID 2124 wrote to memory of 3020	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	41
PID 2124 wrote to memory of 3020	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	41
PID 2124 wrote to memory of 3020	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	41
PID 2124 wrote to memory of 3020	2124	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	41
PID 2768 wrote to memory of 2796	2768	oonteszc.exe	43
PID 2768 wrote to memory of 2796	2768	oonteszc.exe	43
PID 2768 wrote to memory of 2796	2768	oonteszc.exe	43
PID 2768 wrote to memory of 2796	2768	oonteszc.exe	43
PID 2768 wrote to memory of 2796	2768	oonteszc.exe	43
PID 2768 wrote to memory of 2796	2768	oonteszc.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rfufhzvo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oonteszc.exe" C:\Windows\SysWOW64\rfufhzvo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rfufhzvo binPath= "C:\Windows\SysWOW64\rfufhzvo\oonteszc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rfufhzvo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rfufhzvo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1648
- 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:3020

C:\Windows\SysWOW64\rfufhzvo\oonteszc.exe
C:\Windows\SysWOW64\rfufhzvo\oonteszc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- 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:2796

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\oonteszc.exe

Filesize
11.0MB

MD5
d5cb52406921bec442d993e4f8fdaa24

SHA1
32153a46c4f1db7da193306d4721a09131dd32c8

SHA256
858606e30f1ca4f73843958ad0bdded4b458d6457293d6511b27df5fbdad89a1

SHA512
4594fc69b67cf40e52bcc7cde991624c86caed3b9438eb2cec6f5f69f90230d955c3f3ffbf7186ed3a0e5c0d829c62b2f019d89fe128545a97508235708f4f4e

Download Submit
memory/2124-0-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2124-2-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2124-1-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2124-7-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2768-14-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2796-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2796-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2796-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2796-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads