tofsee | 19c9419bffef0d0af1b7c15b0f067b23dd8e11184773d907dad4a7ec4c18b04c

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
24-10-2024 13:22

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General

Target

73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe
Size

11.4MB
MD5

73ef66f715ba43148ec31a08ce599632
SHA1

6cef6bcfe4d5b25a51b767915f8c035b0a830eda
SHA256

19c9419bffef0d0af1b7c15b0f067b23dd8e11184773d907dad4a7ec4c18b04c
SHA512

a556c3b1b74c1e07569c4f5b30230fd3c54a30be4576ac993bc6bd37ca879ed99b5fb00616b9fabfba304133e48098717c5de0e772d029decde12ce210601a28
SSDEEP

49152:h88888888888888888888888888888888888888888888888888888888888888w:

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

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\bufyfzzr = "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
2880	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\bufyfzzr\ImagePath = "C:\\Windows\\SysWOW64\\bufyfzzr\\lugmwrnd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1624	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	lugmwrnd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 1624	2828	lugmwrnd.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2420	sc.exe
2708	sc.exe
2760	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	73ef66f715ba43148ec31a08ce599632_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	svchost.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	lugmwrnd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2700	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	30
PID 2168 wrote to memory of 2700	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	30
PID 2168 wrote to memory of 2700	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	30
PID 2168 wrote to memory of 2700	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	30
PID 2168 wrote to memory of 2484	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	32
PID 2168 wrote to memory of 2484	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	32
PID 2168 wrote to memory of 2484	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	32
PID 2168 wrote to memory of 2484	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	32
PID 2168 wrote to memory of 2420	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	34
PID 2168 wrote to memory of 2420	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	34
PID 2168 wrote to memory of 2420	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	34
PID 2168 wrote to memory of 2420	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	34
PID 2168 wrote to memory of 2708	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	36
PID 2168 wrote to memory of 2708	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	36
PID 2168 wrote to memory of 2708	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	36
PID 2168 wrote to memory of 2708	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	36
PID 2168 wrote to memory of 2760	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	38
PID 2168 wrote to memory of 2760	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	38
PID 2168 wrote to memory of 2760	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	38
PID 2168 wrote to memory of 2760	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	38
PID 2168 wrote to memory of 2880	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	41
PID 2168 wrote to memory of 2880	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	41
PID 2168 wrote to memory of 2880	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	41
PID 2168 wrote to memory of 2880	2168	73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe	41
PID 2828 wrote to memory of 1624	2828	lugmwrnd.exe	44
PID 2828 wrote to memory of 1624	2828	lugmwrnd.exe	44
PID 2828 wrote to memory of 1624	2828	lugmwrnd.exe	44
PID 2828 wrote to memory of 1624	2828	lugmwrnd.exe	44
PID 2828 wrote to memory of 1624	2828	lugmwrnd.exe	44
PID 2828 wrote to memory of 1624	2828	lugmwrnd.exe	44

C:\Users\Admin\AppData\Local\Temp\73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bufyfzzr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lugmwrnd.exe" C:\Windows\SysWOW64\bufyfzzr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bufyfzzr binPath= "C:\Windows\SysWOW64\bufyfzzr\lugmwrnd.exe /d\"C:\Users\Admin\AppData\Local\Temp\73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bufyfzzr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bufyfzzr
  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:2880

C:\Windows\SysWOW64\bufyfzzr\lugmwrnd.exe
C:\Windows\SysWOW64\bufyfzzr\lugmwrnd.exe /d"C:\Users\Admin\AppData\Local\Temp\73ef66f715ba43148ec31a08ce599632_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:1624

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\lugmwrnd.exe

Filesize
11.7MB

MD5
deb0c884cd5bdf35238e063bc643c2e5

SHA1
79a9bb56636321130ad4a6e031026521a645e195

SHA256
69124d1b3d101c9199c4d39f766ac185a8a0bd2f191b1295fb2d5780a3b0f38b

SHA512
730ac2567491cb39d321a34cabb93db0cabb9bf1f55563facd4092375d3f95fe823540301ec95ba7f6c07cae355fb6062cf8567863b0b28cbfe7af0c510e530b

Download Submit
memory/1624-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1624-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1624-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1624-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1624-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2168-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2168-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2168-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2168-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2168-8-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/2168-1-0x0000000002E30000-0x0000000002F30000-memory.dmp

Filesize
1024KB

Download
memory/2828-15-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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