tofsee | bd131e20e3604c7bf88d2f097f168cc7b0682f07b398dc7273a7ac8b0603c20e

General

Target

e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe
Size

14.3MB
MD5

e6f23da75ee0c90e4640ee5a5ad01dda
SHA1

a08a1b7867ba74b3a7ac7eaf0d9f60c1434b9c1a
SHA256

bd131e20e3604c7bf88d2f097f168cc7b0682f07b398dc7273a7ac8b0603c20e
SHA512

bb355360b340952ebafeec8692f59d67bfbfdfa03e655fb18d53035722d7b6d6a751d3e78c4b5bfa839511f83a0d0c14dc48bdf740d5dc02c67a3d41d3b28562
SSDEEP

196608:phKaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaav:p

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
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
2928	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\qmzesmil\ImagePath = "C:\\Windows\\SysWOW64\\qmzesmil\\kisqqgpf.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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3648	kisqqgpf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3648 set thread context of 4028	3648	kisqqgpf.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1300	sc.exe
3920	sc.exe
2812	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1708	3452	WerFault.exe	81
1076	3648	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kisqqgpf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 4624	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	82
PID 3452 wrote to memory of 4624	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	82
PID 3452 wrote to memory of 4624	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	82
PID 3452 wrote to memory of 2516	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	84
PID 3452 wrote to memory of 2516	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	84
PID 3452 wrote to memory of 2516	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	84
PID 3452 wrote to memory of 1300	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	86
PID 3452 wrote to memory of 1300	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	86
PID 3452 wrote to memory of 1300	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	86
PID 3452 wrote to memory of 3920	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	88
PID 3452 wrote to memory of 3920	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	88
PID 3452 wrote to memory of 3920	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	88
PID 3452 wrote to memory of 2812	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	90
PID 3452 wrote to memory of 2812	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	90
PID 3452 wrote to memory of 2812	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	90
PID 3452 wrote to memory of 2928	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	93
PID 3452 wrote to memory of 2928	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	93
PID 3452 wrote to memory of 2928	3452	e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe	93
PID 3648 wrote to memory of 4028	3648	kisqqgpf.exe	98
PID 3648 wrote to memory of 4028	3648	kisqqgpf.exe	98
PID 3648 wrote to memory of 4028	3648	kisqqgpf.exe	98
PID 3648 wrote to memory of 4028	3648	kisqqgpf.exe	98
PID 3648 wrote to memory of 4028	3648	kisqqgpf.exe	98

C:\Users\Admin\AppData\Local\Temp\e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qmzesmil\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kisqqgpf.exe" C:\Windows\SysWOW64\qmzesmil\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qmzesmil binPath= "C:\Windows\SysWOW64\qmzesmil\kisqqgpf.exe /d\"C:\Users\Admin\AppData\Local\Temp\e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qmzesmil "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qmzesmil
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:2928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 676
  2⤵
  - Program crash
  PID:1708

C:\Windows\SysWOW64\qmzesmil\kisqqgpf.exe
C:\Windows\SysWOW64\qmzesmil\kisqqgpf.exe /d"C:\Users\Admin\AppData\Local\Temp\e6f23da75ee0c90e4640ee5a5ad01dda_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3648
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 512
  2⤵
  - Program crash
  PID:1076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3452 -ip 3452
1⤵
PID:2664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3648 -ip 3648
1⤵
PID:2424

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\kisqqgpf.exe

Filesize
11.1MB

MD5
4e0a69d243f81ec1007b841b6fb552fc

SHA1
ef59ea221df52c7cdf851924ef07a7df027f6a5b

SHA256
6b323fa6ef2e7e94d3464c8c0c62900eabd36ff416d8122933514f87809717ba

SHA512
1b434d25ec5af58e559b82b4c418c960bb836c8eb42fda7b1dc43f90028659e03fe16dba5c30453a26a2007332ca1c51dd669aac0e16e323dcf36d093dabc35a

Download Submit
memory/3452-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3452-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3452-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3452-8-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3452-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3452-1-0x0000000000AB0000-0x0000000000BB0000-memory.dmp

Filesize
1024KB

Download
memory/3648-11-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3648-12-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3648-15-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3648-19-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4028-16-0x0000000000520000-0x0000000000535000-memory.dmp

Filesize
84KB

Download
memory/4028-13-0x0000000000520000-0x0000000000535000-memory.dmp

Filesize
84KB

Download
memory/4028-17-0x0000000000520000-0x0000000000535000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads