tofsee | f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8

General

Target

JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe
Size

164KB
MD5

bd7bd7a952e266a38fda3a94ed6e9e32
SHA1

4a97b8a2b2039cb881e3a593572dae987c1eece1
SHA256

f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8
SHA512

2972fb78e5574d447446aba5590aee8938f30dd8a85d9d6baf520de66379f95db5e885a21e35fff00e0d441091788cb8301ab26c69db87a3e6a1fbc7c342968f
SSDEEP

3072:vhqEvST5VOPAY+De6KpE257CDAUgE1S9H6Y:vsEvg56AYYeZp6n1Ea

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
4916	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\aebankip\ImagePath = "C:\\Windows\\SysWOW64\\aebankip\\jokcadp.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	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe

Deletes itself 1 IoCs

pid	Process
4612	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2652	jokcadp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2652 set thread context of 4612	2652	jokcadp.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3772	sc.exe
1056	sc.exe
528	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
4144	4980	WerFault.exe	82
5012	2652	WerFault.exe	94

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	jokcadp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 3656	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	83
PID 4980 wrote to memory of 3656	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	83
PID 4980 wrote to memory of 3656	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	83
PID 4980 wrote to memory of 3824	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	85
PID 4980 wrote to memory of 3824	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	85
PID 4980 wrote to memory of 3824	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	85
PID 4980 wrote to memory of 3772	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	88
PID 4980 wrote to memory of 3772	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	88
PID 4980 wrote to memory of 3772	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	88
PID 4980 wrote to memory of 1056	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	90
PID 4980 wrote to memory of 1056	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	90
PID 4980 wrote to memory of 1056	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	90
PID 4980 wrote to memory of 528	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	92
PID 4980 wrote to memory of 528	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	92
PID 4980 wrote to memory of 528	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	92
PID 4980 wrote to memory of 4916	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	95
PID 4980 wrote to memory of 4916	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	95
PID 4980 wrote to memory of 4916	4980	JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe	95
PID 2652 wrote to memory of 4612	2652	jokcadp.exe	101
PID 2652 wrote to memory of 4612	2652	jokcadp.exe	101
PID 2652 wrote to memory of 4612	2652	jokcadp.exe	101
PID 2652 wrote to memory of 4612	2652	jokcadp.exe	101
PID 2652 wrote to memory of 4612	2652	jokcadp.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aebankip\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jokcadp.exe" C:\Windows\SysWOW64\aebankip\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aebankip binPath= "C:\Windows\SysWOW64\aebankip\jokcadp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aebankip "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aebankip
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:528
- 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:4916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4980 -s 1040
  2⤵
  - Program crash
  PID:4144

C:\Windows\SysWOW64\aebankip\jokcadp.exe
C:\Windows\SysWOW64\aebankip\jokcadp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0ad2d31776715ecfcb4b4fda968cab8c8ac875f530bf5ff199b82c147f861b8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2652 -s 516
  2⤵
  - Program crash
  PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4980 -ip 4980
1⤵
PID:3028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2652 -ip 2652
1⤵
PID:3108

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\jokcadp.exe

Filesize
12.7MB

MD5
94b84285e1e87678f5cb1e1603a91f00

SHA1
7cf78dc556b29a1450676503c503f065896982f9

SHA256
3fc0682a604e76f04ba4d3f4863cbbf5ba099d2801f7548adeac1304e678f425

SHA512
cdf0cfb18e1400c22229756909f8b33d478e58259abcbcef17f90dea5332103a85eeba05b5863185e8d103ea2fc205821578703256402d2798494d7f691e322c

Download Submit
memory/2652-8-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/2652-13-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4612-9-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/4612-11-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/4612-12-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/4980-1-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/4980-6-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4980-7-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads