tofsee | aff73b798d917f95cf4c0e08ec0b0ec7af5eccf2669883fff2ea9d8804a1561a

General

Target

fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe
Size

11.0MB
MD5

fc832fcf8a81a723b469f0c61ec13921
SHA1

8c41e497db55c105b538355863f9b137fd751fd2
SHA256

aff73b798d917f95cf4c0e08ec0b0ec7af5eccf2669883fff2ea9d8804a1561a
SHA512

cb408d24cb73eea90a94bf95faea321bdcde24bfef226253fa69482bdb1584e2abe58069d727d987adc841066c248b0a60d9b08e7a34059eb421268445e9e529
SSDEEP

12288:Nb22XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:l2

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
1112	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\jqaiwcez\ImagePath = "C:\\Windows\\SysWOW64\\jqaiwcez\\ugsaalai.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1000	ugsaalai.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1000 set thread context of 812	1000	ugsaalai.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4736	sc.exe
2772	sc.exe
3644	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ugsaalai.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc832fcf8a81a723b469f0c61ec13921_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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3256 wrote to memory of 2928	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	84
PID 3256 wrote to memory of 2928	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	84
PID 3256 wrote to memory of 2928	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	84
PID 3256 wrote to memory of 3144	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	86
PID 3256 wrote to memory of 3144	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	86
PID 3256 wrote to memory of 3144	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	86
PID 3256 wrote to memory of 4736	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	88
PID 3256 wrote to memory of 4736	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	88
PID 3256 wrote to memory of 4736	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	88
PID 3256 wrote to memory of 2772	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	90
PID 3256 wrote to memory of 2772	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	90
PID 3256 wrote to memory of 2772	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	90
PID 3256 wrote to memory of 3644	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	92
PID 3256 wrote to memory of 3644	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	92
PID 3256 wrote to memory of 3644	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	92
PID 3256 wrote to memory of 1112	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	95
PID 3256 wrote to memory of 1112	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	95
PID 3256 wrote to memory of 1112	3256	fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe	95
PID 1000 wrote to memory of 812	1000	ugsaalai.exe	97
PID 1000 wrote to memory of 812	1000	ugsaalai.exe	97
PID 1000 wrote to memory of 812	1000	ugsaalai.exe	97
PID 1000 wrote to memory of 812	1000	ugsaalai.exe	97
PID 1000 wrote to memory of 812	1000	ugsaalai.exe	97

C:\Users\Admin\AppData\Local\Temp\fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jqaiwcez\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ugsaalai.exe" C:\Windows\SysWOW64\jqaiwcez\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jqaiwcez binPath= "C:\Windows\SysWOW64\jqaiwcez\ugsaalai.exe /d\"C:\Users\Admin\AppData\Local\Temp\fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jqaiwcez "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jqaiwcez
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3644
- 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:1112

C:\Windows\SysWOW64\jqaiwcez\ugsaalai.exe
C:\Windows\SysWOW64\jqaiwcez\ugsaalai.exe /d"C:\Users\Admin\AppData\Local\Temp\fc832fcf8a81a723b469f0c61ec13921_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:812

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\ugsaalai.exe

Filesize
14.4MB

MD5
e949be78f2d01f78dec1d4f0757e5fe2

SHA1
9be8dcf81a009919e9a7d7b0bc6688d0f835e947

SHA256
d4135ac4fbec9ab7635cece8471db3abfb266a57d5126ed55c46799cbcd897b9

SHA512
2dc9f5cafe5fb59630c6d86045d8a6bab84ebb3bca58c5df67223da1030c0af4919c81c0bdf3215212b12462f532d320a6328060cf2c45b60ee922e67a01af1a

Download Submit
memory/812-14-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/812-19-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/812-17-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/1000-13-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/1000-11-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/1000-12-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/1000-18-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/3256-9-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download
memory/3256-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/3256-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/3256-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3256-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3256-2-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads