tofsee | f1487d97f490f7b6e072b9f097322b02ef8702b15872bce83382ee2b164d702f

General

Target

8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe
Size

13.5MB
MD5

8bcc5ece70e5340c66d2e97415ffb075
SHA1

88c81af6078c36e4df87306a6dbb94e2f7158d44
SHA256

f1487d97f490f7b6e072b9f097322b02ef8702b15872bce83382ee2b164d702f
SHA512

9eceb1bd7a9ebbd5ed929a3e752280be6b9df30fa1ffedde0eb564b105eedb9e2c750a6b0cf703b45e3d529906eaa6ef748ce32d749f4de68b30bfe04ac22048
SSDEEP

393216:D88888888888888888888888888888888888888888888888888888888888888n:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
4560	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\drhkjtht\ImagePath = "C:\\Windows\\SysWOW64\\drhkjtht\\lxeydjwe.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4320	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1992	lxeydjwe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 4320	1992	lxeydjwe.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
4132	sc.exe
3392	sc.exe
1452	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4180	1060	WerFault.exe	83
3244	1992	WerFault.exe	98

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lxeydjwe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 1500	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	88
PID 1060 wrote to memory of 1500	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	88
PID 1060 wrote to memory of 1500	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	88
PID 1060 wrote to memory of 3544	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	90
PID 1060 wrote to memory of 3544	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	90
PID 1060 wrote to memory of 3544	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	90
PID 1060 wrote to memory of 4132	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	92
PID 1060 wrote to memory of 4132	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	92
PID 1060 wrote to memory of 4132	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	92
PID 1060 wrote to memory of 3392	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	94
PID 1060 wrote to memory of 3392	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	94
PID 1060 wrote to memory of 3392	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	94
PID 1060 wrote to memory of 1452	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	96
PID 1060 wrote to memory of 1452	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	96
PID 1060 wrote to memory of 1452	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	96
PID 1060 wrote to memory of 4560	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	99
PID 1060 wrote to memory of 4560	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	99
PID 1060 wrote to memory of 4560	1060	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	99
PID 1992 wrote to memory of 4320	1992	lxeydjwe.exe	104
PID 1992 wrote to memory of 4320	1992	lxeydjwe.exe	104
PID 1992 wrote to memory of 4320	1992	lxeydjwe.exe	104
PID 1992 wrote to memory of 4320	1992	lxeydjwe.exe	104
PID 1992 wrote to memory of 4320	1992	lxeydjwe.exe	104

C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\drhkjtht\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lxeydjwe.exe" C:\Windows\SysWOW64\drhkjtht\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create drhkjtht binPath= "C:\Windows\SysWOW64\drhkjtht\lxeydjwe.exe /d\"C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description drhkjtht "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start drhkjtht
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1452
- 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:4560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 648
  2⤵
  - Program crash
  PID:4180

C:\Windows\SysWOW64\drhkjtht\lxeydjwe.exe
C:\Windows\SysWOW64\drhkjtht\lxeydjwe.exe /d"C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 516
  2⤵
  - Program crash
  PID:3244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1060 -ip 1060
1⤵
PID:3952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1992 -ip 1992
1⤵
PID:4588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\lxeydjwe.exe

Filesize
11.0MB

MD5
c48a2172cf409791495766172153f4e8

SHA1
3d7b30f666a56eb57b172a8b9942ff19c7641725

SHA256
062d1ec6b4e461275d3f2f0f95d94f57b47494e20f3cdcb77e1dd53d90bbfeca

SHA512
2fc15af1cb012990f18846530757761e3dcff2ef537e8afca67ae1294922c36749733f3bc8e8ec22d6b9f038de0eb8a5821dafb66438397b7ea009ecb4f2473e

Download Submit
memory/1060-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1060-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1060-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1060-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1060-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1060-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/1992-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1992-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1992-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1992-18-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4320-14-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4320-16-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4320-17-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads