tofsee | 378013409ea4fc145dcf70286fc119f61608b49411c7339af5755c09ad764217

General

Target

82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe
Size

12.5MB
MD5

82645945c9bc63d23da8e355065d8169
SHA1

4a487d6edbb8c9fa70a6296726788ff74e6a675c
SHA256

378013409ea4fc145dcf70286fc119f61608b49411c7339af5755c09ad764217
SHA512

5edd520a4d65a133acec61f4c4e074c999c17eaef31e3aedf32ad2e3d0804f80e4a510af86b28906e565934562329d99172b3a438350342bf57f73813557d866
SSDEEP

98304:AWtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0:A

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
1484	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\egnseyfx\ImagePath = "C:\\Windows\\SysWOW64\\egnseyfx\\ldiiphbf.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4624	ldiiphbf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4624 set thread context of 2888	4624	ldiiphbf.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
3844	sc.exe
3716	sc.exe
3748	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
1916	3524	WerFault.exe	83
1224	4624	WerFault.exe	97

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	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	ldiiphbf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3524 wrote to memory of 2132	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	87
PID 3524 wrote to memory of 2132	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	87
PID 3524 wrote to memory of 2132	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	87
PID 3524 wrote to memory of 5104	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	89
PID 3524 wrote to memory of 5104	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	89
PID 3524 wrote to memory of 5104	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	89
PID 3524 wrote to memory of 3844	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	91
PID 3524 wrote to memory of 3844	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	91
PID 3524 wrote to memory of 3844	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	91
PID 3524 wrote to memory of 3716	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	93
PID 3524 wrote to memory of 3716	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	93
PID 3524 wrote to memory of 3716	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	93
PID 3524 wrote to memory of 3748	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	95
PID 3524 wrote to memory of 3748	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	95
PID 3524 wrote to memory of 3748	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	95
PID 3524 wrote to memory of 1484	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	98
PID 3524 wrote to memory of 1484	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	98
PID 3524 wrote to memory of 1484	3524	82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe	98
PID 4624 wrote to memory of 2888	4624	ldiiphbf.exe	107
PID 4624 wrote to memory of 2888	4624	ldiiphbf.exe	107
PID 4624 wrote to memory of 2888	4624	ldiiphbf.exe	107
PID 4624 wrote to memory of 2888	4624	ldiiphbf.exe	107
PID 4624 wrote to memory of 2888	4624	ldiiphbf.exe	107

C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\egnseyfx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ldiiphbf.exe" C:\Windows\SysWOW64\egnseyfx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create egnseyfx binPath= "C:\Windows\SysWOW64\egnseyfx\ldiiphbf.exe /d\"C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description egnseyfx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start egnseyfx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3748
- 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:1484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 1036
  2⤵
  - Program crash
  PID:1916

C:\Windows\SysWOW64\egnseyfx\ldiiphbf.exe
C:\Windows\SysWOW64\egnseyfx\ldiiphbf.exe /d"C:\Users\Admin\AppData\Local\Temp\82645945c9bc63d23da8e355065d8169_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 524
  2⤵
  - Program crash
  PID:1224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3524 -ip 3524
1⤵
PID:3288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4624 -ip 4624
1⤵
PID:1876

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\ldiiphbf.exe

Filesize
13.8MB

MD5
fe05f72bd87bde5e15ecfdf9ea8affcf

SHA1
cd30348c08dbc30b61d533be7fd11d90b5dff928

SHA256
554cadb494d60fccba057b5725c2b21f3b4e97721ee9bbb19070efff9c9cd7c6

SHA512
ed4602fcbce144344a011d1946af6226305e6338f16b293aafed44809f7a42620f6ec0e2ac2c00ebd11aefc3cd20042c91086b97ab97d65ae5cd5921d1a02447

Download Submit
memory/2888-11-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/2888-13-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/2888-14-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/3524-1-0x0000000002F80000-0x0000000003080000-memory.dmp

Filesize
1024KB

Download
memory/3524-2-0x0000000002F10000-0x0000000002F23000-memory.dmp

Filesize
76KB

Download
memory/3524-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3524-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3524-9-0x0000000002F10000-0x0000000002F23000-memory.dmp

Filesize
76KB

Download
memory/3524-8-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download
memory/4624-15-0x0000000000400000-0x0000000002C68000-memory.dmp

Filesize
40.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads