tofsee | f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 04:00

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General

Target

JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe
Size

187KB
MD5

27b7fa84e7765abcb03f3d7b8ac3699b
SHA1

eabf162f38ad7bcaa862e8d11a8ba5560fba6c61
SHA256

f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a
SHA512

d2c3e3315f97e23af2ef2ce92687ec9e96cc0703bdb3cf0834dc2d8ab9ad18e3e15dc994923c2b52e311edc74696089fd85a3b74224a0a17ca4eb77b9fb8cc88
SSDEEP

3072:Z7ojA4DTPiMhkeIlqT0bkbZsjGp23YXoI/mmBHSO/YpZa9uD6Vdyhk9:4A4DTPiMtIQT0I5+YXoI/mGR/YwVf

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\ckuayrdp = "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
2608	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\ckuayrdp\ImagePath = "C:\\Windows\\SysWOW64\\ckuayrdp\\viropugt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	viropugt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 2812	2744	viropugt.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
328	sc.exe
2500	sc.exe
2484	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	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe
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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	viropugt.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 1728	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	30
PID 2568 wrote to memory of 1728	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	30
PID 2568 wrote to memory of 1728	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	30
PID 2568 wrote to memory of 1728	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	30
PID 2568 wrote to memory of 3068	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	32
PID 2568 wrote to memory of 3068	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	32
PID 2568 wrote to memory of 3068	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	32
PID 2568 wrote to memory of 3068	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	32
PID 2568 wrote to memory of 328	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	34
PID 2568 wrote to memory of 328	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	34
PID 2568 wrote to memory of 328	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	34
PID 2568 wrote to memory of 328	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	34
PID 2568 wrote to memory of 2500	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	36
PID 2568 wrote to memory of 2500	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	36
PID 2568 wrote to memory of 2500	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	36
PID 2568 wrote to memory of 2500	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	36
PID 2568 wrote to memory of 2484	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	38
PID 2568 wrote to memory of 2484	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	38
PID 2568 wrote to memory of 2484	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	38
PID 2568 wrote to memory of 2484	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	38
PID 2744 wrote to memory of 2812	2744	viropugt.exe	41
PID 2744 wrote to memory of 2812	2744	viropugt.exe	41
PID 2744 wrote to memory of 2812	2744	viropugt.exe	41
PID 2744 wrote to memory of 2812	2744	viropugt.exe	41
PID 2744 wrote to memory of 2812	2744	viropugt.exe	41
PID 2744 wrote to memory of 2812	2744	viropugt.exe	41
PID 2568 wrote to memory of 2608	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	42
PID 2568 wrote to memory of 2608	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	42
PID 2568 wrote to memory of 2608	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	42
PID 2568 wrote to memory of 2608	2568	JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ckuayrdp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\viropugt.exe" C:\Windows\SysWOW64\ckuayrdp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ckuayrdp binPath= "C:\Windows\SysWOW64\ckuayrdp\viropugt.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ckuayrdp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ckuayrdp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2484
- 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:2608

C:\Windows\SysWOW64\ckuayrdp\viropugt.exe
C:\Windows\SysWOW64\ckuayrdp\viropugt.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f93d0887b4bea5ce3be804e193b29a151b4c533b86f83eb871ec154b5e461c7a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- 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:2812

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\viropugt.exe

Filesize
10.4MB

MD5
b2cf2ce34204fdea35c1bea25be5f43e

SHA1
c391aa79c3a0519c931f3abcd4861d78c92aa586

SHA256
403dfc5dfc3d2b2385b54e07b33959f5c88b184ac39b45461d1efdd9d1d96f02

SHA512
a5066654288268fd2b31ab80d42d7c6225983ca8f35d417e17582c1b6dbc2d90279474a64fa8c96177d453f46e2d1d43404b804f488649af8c16c6a5c248ba91

Download Submit
memory/2568-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2568-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2568-13-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2568-14-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2744-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-6-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads