tofsee | edc8ecfa92c7a95befe10e41a1c8b6a1a139b3e38173347f8f54206f3ada0d19

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 04:04

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General

Target

JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe
Size

11.8MB
MD5

0d553328950c5076346fcabbd1a28381
SHA1

fd0ee31ba8dfa3f88015febba22b191bf3713b5b
SHA256

edc8ecfa92c7a95befe10e41a1c8b6a1a139b3e38173347f8f54206f3ada0d19
SHA512

fa02ff7f4676df60f283ce9ab81aadde9acfd611e8e44de6dcbb7da2f07f36b521bf4c1e2cfbcf86bd5a6935dd2bda8319962da7cf3b7c0f571d49c6c5adc8bf
SSDEEP

49152:quqUj++++++++++++++++++++++++++++++++++++++++++++++++++++++++++y:Jb

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\gimvzdau = "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
2924	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\gimvzdau\ImagePath = "C:\\Windows\\SysWOW64\\gimvzdau\\zjobidcr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2896	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3044	zjobidcr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 2896	3044	zjobidcr.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2872	sc.exe
2876	sc.exe
2712	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	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	zjobidcr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2536	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	31
PID 2268 wrote to memory of 2536	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	31
PID 2268 wrote to memory of 2536	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	31
PID 2268 wrote to memory of 2536	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	31
PID 2268 wrote to memory of 1988	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	33
PID 2268 wrote to memory of 1988	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	33
PID 2268 wrote to memory of 1988	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	33
PID 2268 wrote to memory of 1988	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	33
PID 2268 wrote to memory of 2712	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	35
PID 2268 wrote to memory of 2712	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	35
PID 2268 wrote to memory of 2712	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	35
PID 2268 wrote to memory of 2712	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	35
PID 2268 wrote to memory of 2872	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	37
PID 2268 wrote to memory of 2872	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	37
PID 2268 wrote to memory of 2872	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	37
PID 2268 wrote to memory of 2872	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	37
PID 2268 wrote to memory of 2876	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	39
PID 2268 wrote to memory of 2876	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	39
PID 2268 wrote to memory of 2876	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	39
PID 2268 wrote to memory of 2876	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	39
PID 2268 wrote to memory of 2924	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	42
PID 2268 wrote to memory of 2924	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	42
PID 2268 wrote to memory of 2924	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	42
PID 2268 wrote to memory of 2924	2268	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	42
PID 3044 wrote to memory of 2896	3044	zjobidcr.exe	44
PID 3044 wrote to memory of 2896	3044	zjobidcr.exe	44
PID 3044 wrote to memory of 2896	3044	zjobidcr.exe	44
PID 3044 wrote to memory of 2896	3044	zjobidcr.exe	44
PID 3044 wrote to memory of 2896	3044	zjobidcr.exe	44
PID 3044 wrote to memory of 2896	3044	zjobidcr.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gimvzdau\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zjobidcr.exe" C:\Windows\SysWOW64\gimvzdau\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gimvzdau binPath= "C:\Windows\SysWOW64\gimvzdau\zjobidcr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gimvzdau "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gimvzdau
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- 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:2924

C:\Windows\SysWOW64\gimvzdau\zjobidcr.exe
C:\Windows\SysWOW64\gimvzdau\zjobidcr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- 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:2896

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\zjobidcr.exe

Filesize
13.1MB

MD5
cbfa14bbf97c44a6ad4fadd87478a53c

SHA1
eda3ce9bba4e27bf7bdcf7e635a34f8cd5924fd5

SHA256
678e623bae0f7832a38f1c5dc5d04711f651d17358f73aaf3c822636814dd083

SHA512
c23a5cab34e76eabb09cad0b32e7e5682fd3677ff9d785ced91c985ffbd5181162ba21c2144531bad915973e1d681bee40b22adf2a4759aa3ae7028675d023c4

Download Submit
memory/2268-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2268-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2268-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2268-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2268-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2268-1-0x00000000017B0000-0x00000000018B0000-memory.dmp

Filesize
1024KB

Download
memory/2268-10-0x00000000017B0000-0x00000000018B0000-memory.dmp

Filesize
1024KB

Download
memory/2896-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2896-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2896-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2896-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3044-18-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads