tofsee | 3f487cd4fe611496acdd0cb193385e2bb233d535e99b5f6caadcf172150f38a5

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 01:15

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General

Target

JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe
Size

14.5MB
MD5

f32bc79d3ad21de604fa37038da7e745
SHA1

51ce5b09338e62e7bd869cd2939c50ec011f1782
SHA256

3f487cd4fe611496acdd0cb193385e2bb233d535e99b5f6caadcf172150f38a5
SHA512

692cb21d4f9078953449114c7a3743fa201fdb391c89577a59c72d3e2bbc4f77174723a8f36f395cb508df82fbd24b989e11caa9c496f4ad85c9fc4931b45cdc
SSDEEP

196608:sb/////////////////////////////////////////////////////////////H:s

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\euptwizc = "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
2776	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\euptwizc\ImagePath = "C:\\Windows\\SysWOW64\\euptwizc\\sqayyoxn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2800	sqayyoxn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 2620	2800	sqayyoxn.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2376	sc.exe
2536	sc.exe
2688	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_f32bc79d3ad21de604fa37038da7e745.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	netsh.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	sqayyoxn.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2604	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	28
PID 2840 wrote to memory of 2604	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	28
PID 2840 wrote to memory of 2604	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	28
PID 2840 wrote to memory of 2604	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	28
PID 2840 wrote to memory of 2716	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	30
PID 2840 wrote to memory of 2716	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	30
PID 2840 wrote to memory of 2716	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	30
PID 2840 wrote to memory of 2716	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	30
PID 2840 wrote to memory of 2376	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	32
PID 2840 wrote to memory of 2376	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	32
PID 2840 wrote to memory of 2376	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	32
PID 2840 wrote to memory of 2376	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	32
PID 2840 wrote to memory of 2536	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	34
PID 2840 wrote to memory of 2536	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	34
PID 2840 wrote to memory of 2536	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	34
PID 2840 wrote to memory of 2536	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	34
PID 2840 wrote to memory of 2688	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	36
PID 2840 wrote to memory of 2688	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	36
PID 2840 wrote to memory of 2688	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	36
PID 2840 wrote to memory of 2688	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	36
PID 2840 wrote to memory of 2776	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	39
PID 2840 wrote to memory of 2776	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	39
PID 2840 wrote to memory of 2776	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	39
PID 2840 wrote to memory of 2776	2840	JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe	39
PID 2800 wrote to memory of 2620	2800	sqayyoxn.exe	41
PID 2800 wrote to memory of 2620	2800	sqayyoxn.exe	41
PID 2800 wrote to memory of 2620	2800	sqayyoxn.exe	41
PID 2800 wrote to memory of 2620	2800	sqayyoxn.exe	41
PID 2800 wrote to memory of 2620	2800	sqayyoxn.exe	41
PID 2800 wrote to memory of 2620	2800	sqayyoxn.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\euptwizc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sqayyoxn.exe" C:\Windows\SysWOW64\euptwizc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create euptwizc binPath= "C:\Windows\SysWOW64\euptwizc\sqayyoxn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description euptwizc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start euptwizc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:2776

C:\Windows\SysWOW64\euptwizc\sqayyoxn.exe
C:\Windows\SysWOW64\euptwizc\sqayyoxn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f32bc79d3ad21de604fa37038da7e745.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- 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:2620

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\sqayyoxn.exe

Filesize
12.4MB

MD5
6dc19bcc8e151c886f578de1995c7e83

SHA1
876091835a07fc08bdfaaef8cbe4ceb4433516ed

SHA256
c6f2819d76fcd1a4f34c9582d6ddae0e3d493f91c95f812ba459d421dd290c79

SHA512
34e1244a5d8b626a8fff9702010668bcdbc00769ece3c3dcee8513ebfc6303e751bc6f961695e25be75c189188191a43ca524ab38badc0b04c62be7f4ef8891d

Download Submit
memory/2620-15-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2620-17-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2620-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-12-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2620-19-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2800-18-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2840-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2840-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/2840-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2840-10-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/2840-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2840-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2840-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads