tofsee | c8eed2f9ea3d4118cfde872489aea27c34edc9720a218cf483f76528aa2a9a87

General

Target

7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe
Size

11.1MB
MD5

7be29c6f07a591909370c730d25e0474
SHA1

74a9d8c39bb05b732f9a2d53735f992626247355
SHA256

c8eed2f9ea3d4118cfde872489aea27c34edc9720a218cf483f76528aa2a9a87
SHA512

b0971bcb9dba67e8684e23b47f06e12f2d144fe2e21bec13fbe73265ff38476409b92415e2392fb6d003b8822ecea11a8ff6f52aaa8ae45bc9442aefbba47b77
SSDEEP

196608:i+8888888888888888888888888888888888888888888888888888888888888H:j888888888888888888888888888888g

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
4696	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\aefzfcto\ImagePath = "C:\\Windows\\SysWOW64\\aefzfcto\\pjscpsxj.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
5096	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
8	pjscpsxj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 8 set thread context of 5096	8	pjscpsxj.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
2268	sc.exe
1456	sc.exe
2052	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
2684	440	WerFault.exe	83
4768	8	WerFault.exe	101

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	7be29c6f07a591909370c730d25e0474_JaffaCakes118.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	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	pjscpsxj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 440 wrote to memory of 4284	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	87
PID 440 wrote to memory of 4284	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	87
PID 440 wrote to memory of 4284	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	87
PID 440 wrote to memory of 2928	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	89
PID 440 wrote to memory of 2928	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	89
PID 440 wrote to memory of 2928	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	89
PID 440 wrote to memory of 2268	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	93
PID 440 wrote to memory of 2268	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	93
PID 440 wrote to memory of 2268	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	93
PID 440 wrote to memory of 1456	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	95
PID 440 wrote to memory of 1456	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	95
PID 440 wrote to memory of 1456	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	95
PID 440 wrote to memory of 2052	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	99
PID 440 wrote to memory of 2052	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	99
PID 440 wrote to memory of 2052	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	99
PID 440 wrote to memory of 4696	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	102
PID 440 wrote to memory of 4696	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	102
PID 440 wrote to memory of 4696	440	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	102
PID 8 wrote to memory of 5096	8	pjscpsxj.exe	107
PID 8 wrote to memory of 5096	8	pjscpsxj.exe	107
PID 8 wrote to memory of 5096	8	pjscpsxj.exe	107
PID 8 wrote to memory of 5096	8	pjscpsxj.exe	107
PID 8 wrote to memory of 5096	8	pjscpsxj.exe	107

C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aefzfcto\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pjscpsxj.exe" C:\Windows\SysWOW64\aefzfcto\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aefzfcto binPath= "C:\Windows\SysWOW64\aefzfcto\pjscpsxj.exe /d\"C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aefzfcto "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aefzfcto
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2052
- 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:4696
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 440 -s 676
  2⤵
  - Program crash
  PID:2684

C:\Windows\SysWOW64\aefzfcto\pjscpsxj.exe
C:\Windows\SysWOW64\aefzfcto\pjscpsxj.exe /d"C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:8
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5096
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 532
  2⤵
  - Program crash
  PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 440 -ip 440
1⤵
PID:3036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 8 -ip 8
1⤵
PID:1016

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\pjscpsxj.exe

Filesize
14.1MB

MD5
c3f26a78e7cc7d7c1f3a22cd82c9df84

SHA1
e0613a088747351994400b54311bb1ace6036364

SHA256
45d0bb36312a53205b7a0e885ca97a5115946146c6fda31fefda101b6d487f28

SHA512
eab255aff18a776b56f1bb7aa53eef8a15d916eff21660b6e82ed229a34bd67e7a444c52a942af8017e7c784219e240593ce31d89d357501588d2ba6a666bb8b

Download Submit
memory/8-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/8-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/8-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/8-19-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/440-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/440-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/440-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/440-9-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/440-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/440-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/5096-14-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/5096-16-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/5096-17-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads