tofsee | 4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df

Analysis

max time kernel
143s
max time network
129s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 00:16

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General

Target

JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe
Size

315KB
MD5

e0b4e6f9450122319cc01978d3639e83
SHA1

aba9a8fca5e86afbde8215f2ae2c51fae913c149
SHA256

4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df
SHA512

c8064816a580626a74cd12da0028d8b9c7640a2bebe53d2995fbe75f3b49dc7ddf1599d4f049cadae0596ed0a044ab96735db397b1deddb861b48e0ad2bc4355
SSDEEP

3072:zchCKOmpAL2s8t5dKQY4dJh1tGbLl0k284e2BxWH8IL+ntGCMjjjjjjjjo:IkIAL2s8924DtG90k2DLDA8ltGCM

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\vaxedkgs = "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
2696	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\vaxedkgs\ImagePath = "C:\\Windows\\SysWOW64\\vaxedkgs\\evryposw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	evryposw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2728	2888	evryposw.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2784	sc.exe
2904	sc.exe
2900	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_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	evryposw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2000	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	29
PID 2412 wrote to memory of 2000	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	29
PID 2412 wrote to memory of 2000	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	29
PID 2412 wrote to memory of 2000	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	29
PID 2412 wrote to memory of 2976	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	31
PID 2412 wrote to memory of 2976	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	31
PID 2412 wrote to memory of 2976	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	31
PID 2412 wrote to memory of 2976	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	31
PID 2412 wrote to memory of 2784	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	33
PID 2412 wrote to memory of 2784	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	33
PID 2412 wrote to memory of 2784	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	33
PID 2412 wrote to memory of 2784	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	33
PID 2412 wrote to memory of 2904	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	35
PID 2412 wrote to memory of 2904	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	35
PID 2412 wrote to memory of 2904	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	35
PID 2412 wrote to memory of 2904	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	35
PID 2412 wrote to memory of 2900	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	37
PID 2412 wrote to memory of 2900	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	37
PID 2412 wrote to memory of 2900	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	37
PID 2412 wrote to memory of 2900	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	37
PID 2412 wrote to memory of 2696	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	40
PID 2412 wrote to memory of 2696	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	40
PID 2412 wrote to memory of 2696	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	40
PID 2412 wrote to memory of 2696	2412	JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe	40
PID 2888 wrote to memory of 2728	2888	evryposw.exe	42
PID 2888 wrote to memory of 2728	2888	evryposw.exe	42
PID 2888 wrote to memory of 2728	2888	evryposw.exe	42
PID 2888 wrote to memory of 2728	2888	evryposw.exe	42
PID 2888 wrote to memory of 2728	2888	evryposw.exe	42
PID 2888 wrote to memory of 2728	2888	evryposw.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vaxedkgs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\evryposw.exe" C:\Windows\SysWOW64\vaxedkgs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vaxedkgs binPath= "C:\Windows\SysWOW64\vaxedkgs\evryposw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vaxedkgs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vaxedkgs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:2696

C:\Windows\SysWOW64\vaxedkgs\evryposw.exe
C:\Windows\SysWOW64\vaxedkgs\evryposw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4cf9da9215e2027a3cfc21491b44c75b469d75a74941fe8c2f3e43ce1c91d0df.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- 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:2728

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\evryposw.exe

Filesize
13.3MB

MD5
22b79e14e84252ab3fbcebc514713f3f

SHA1
e8aab6588e37041d71954924cd17362b63591ec9

SHA256
a3a86b11ed4ad793b1749840c317da6eccd21b6dd284b30e7f6d230903c27e89

SHA512
16e982f95c283cffe96d7d43a6c7600287319894bdcf60c52a1c0b81622ac74e4d53d76fa0b1b26ccf86fed8aca8d766a1b40791a905e7e40e13c23f5df20ecf

Download Submit
memory/2412-7-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/2412-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2412-1-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/2412-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2412-8-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2412-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2412-6-0x0000000000400000-0x00000000046CF000-memory.dmp

Filesize
66.8MB

Download
memory/2728-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-14-0x0000000000400000-0x00000000046CF000-memory.dmp

Filesize
66.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads