tofsee | 8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043

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
25-12-2024 20:49

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General

Target

JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe
Size

286KB
MD5

35222c2852fe3d8ed50c8820b4aa10fb
SHA1

47664e419c4357857bac4257a317c282e36c0009
SHA256

8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043
SHA512

5233c53cfb2aea7450076be4dee889048621a005b39b69330393bb041dc97ad7240e5ce1bc6a7ac6fc0f9d121b2e20765b96d9a57d499233ef8518a98013d92d
SSDEEP

3072:Kkt7EEcdxTVtTjv6z7lKBFRqHXu0ay/McZWKYZYU/Gx9II9PtcLHTbuJt3nnLBbi:K47QPVtTjv4lKb8HhtY0vIAKzinLBw

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\bnmazpsq = "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
2360	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\bnmazpsq\ImagePath = "C:\\Windows\\SysWOW64\\bnmazpsq\\svtoipzj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2372	svtoipzj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 2868	2372	svtoipzj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1440	sc.exe
2776	sc.exe
2908	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.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	svtoipzj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 1996	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	31
PID 2308 wrote to memory of 1996	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	31
PID 2308 wrote to memory of 1996	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	31
PID 2308 wrote to memory of 1996	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	31
PID 2308 wrote to memory of 1780	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	33
PID 2308 wrote to memory of 1780	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	33
PID 2308 wrote to memory of 1780	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	33
PID 2308 wrote to memory of 1780	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	33
PID 2308 wrote to memory of 1440	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	35
PID 2308 wrote to memory of 1440	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	35
PID 2308 wrote to memory of 1440	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	35
PID 2308 wrote to memory of 1440	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	35
PID 2308 wrote to memory of 2776	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	37
PID 2308 wrote to memory of 2776	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	37
PID 2308 wrote to memory of 2776	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	37
PID 2308 wrote to memory of 2776	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	37
PID 2308 wrote to memory of 2908	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	39
PID 2308 wrote to memory of 2908	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	39
PID 2308 wrote to memory of 2908	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	39
PID 2308 wrote to memory of 2908	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	39
PID 2308 wrote to memory of 2360	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	42
PID 2308 wrote to memory of 2360	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	42
PID 2308 wrote to memory of 2360	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	42
PID 2308 wrote to memory of 2360	2308	JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe	42
PID 2372 wrote to memory of 2868	2372	svtoipzj.exe	44
PID 2372 wrote to memory of 2868	2372	svtoipzj.exe	44
PID 2372 wrote to memory of 2868	2372	svtoipzj.exe	44
PID 2372 wrote to memory of 2868	2372	svtoipzj.exe	44
PID 2372 wrote to memory of 2868	2372	svtoipzj.exe	44
PID 2372 wrote to memory of 2868	2372	svtoipzj.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bnmazpsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\svtoipzj.exe" C:\Windows\SysWOW64\bnmazpsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bnmazpsq binPath= "C:\Windows\SysWOW64\bnmazpsq\svtoipzj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bnmazpsq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bnmazpsq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- 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:2360

C:\Windows\SysWOW64\bnmazpsq\svtoipzj.exe
C:\Windows\SysWOW64\bnmazpsq\svtoipzj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d7c8ef6d362692f079bff3f66af4f7fd253660a5b28f68442df12d47bf7a043.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- 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:2868

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\svtoipzj.exe

Filesize
14.6MB

MD5
b7b60fb8e1216f958312e2c7a333029e

SHA1
7a7c15ee4fc4a0c015b659b36c2933761680b1d2

SHA256
5e14a806051dc04d9f90f9b87392d002cb4b493b0e94e21970ecdc06bd9b0c3c

SHA512
cd0cbc9cd1b6af76110b14a73b1fcdd8a97b5a36e3a27dcffb0becb1bee1a0afeef1520d58d6c92027fb8db011f91883384be37634e375a80cabf9291dc25f66

Download Submit
memory/2308-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2308-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2308-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2308-1-0x0000000002C20000-0x0000000002D20000-memory.dmp

Filesize
1024KB

Download
memory/2372-16-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2868-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2868-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads