tofsee | b7d7a39f5621f9e8844461563807c51d89433ffc61b322864d416db80d912569

General

Target

JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe
Size

10.5MB
MD5

f5954cce413ce2a9efc23a5305119086
SHA1

f32dc47cfbbeb1eda1346c75e57a920564d64357
SHA256

b7d7a39f5621f9e8844461563807c51d89433ffc61b322864d416db80d912569
SHA512

141cc87398d9417ad5e87c314f842de6c1cf4d8aff79f70602f8beea7d8adcf93102ed2a092b4aa64b03b49f7228306f7f3fd6cfa152471ef60e26f60fa0f9d3
SSDEEP

6144:dh3STswjk6CQXYrqNX53fVhBIixhIKIHFmfpBggggggggggggggggggggggggggg:vSbA6forqH3fPBTI/H

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

176.111.174.19

lazystax.ru

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
1840	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\kgxriwob\ImagePath = "C:\\Windows\\SysWOW64\\kgxriwob\\rzgqljgl.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe

Deletes itself 1 IoCs

pid	Process
3348	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
860	rzgqljgl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 860 set thread context of 3348	860	rzgqljgl.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2536	sc.exe
1472	sc.exe
4504	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
32	3140	WerFault.exe	81
2772	860	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	rzgqljgl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3140 wrote to memory of 1324	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	82
PID 3140 wrote to memory of 1324	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	82
PID 3140 wrote to memory of 1324	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	82
PID 3140 wrote to memory of 3944	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	84
PID 3140 wrote to memory of 3944	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	84
PID 3140 wrote to memory of 3944	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	84
PID 3140 wrote to memory of 2536	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	86
PID 3140 wrote to memory of 2536	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	86
PID 3140 wrote to memory of 2536	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	86
PID 3140 wrote to memory of 1472	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	88
PID 3140 wrote to memory of 1472	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	88
PID 3140 wrote to memory of 1472	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	88
PID 3140 wrote to memory of 4504	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	90
PID 3140 wrote to memory of 4504	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	90
PID 3140 wrote to memory of 4504	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	90
PID 3140 wrote to memory of 1840	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	93
PID 3140 wrote to memory of 1840	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	93
PID 3140 wrote to memory of 1840	3140	JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe	93
PID 860 wrote to memory of 3348	860	rzgqljgl.exe	98
PID 860 wrote to memory of 3348	860	rzgqljgl.exe	98
PID 860 wrote to memory of 3348	860	rzgqljgl.exe	98
PID 860 wrote to memory of 3348	860	rzgqljgl.exe	98
PID 860 wrote to memory of 3348	860	rzgqljgl.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kgxriwob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rzgqljgl.exe" C:\Windows\SysWOW64\kgxriwob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kgxriwob binPath= "C:\Windows\SysWOW64\kgxriwob\rzgqljgl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kgxriwob "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kgxriwob
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4504
- 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:1840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 580
  2⤵
  - Program crash
  PID:32

C:\Windows\SysWOW64\kgxriwob\rzgqljgl.exe
C:\Windows\SysWOW64\kgxriwob\rzgqljgl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5954cce413ce2a9efc23a5305119086.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 860 -s 512
  2⤵
  - Program crash
  PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3140 -ip 3140
1⤵
PID:1980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 860 -ip 860
1⤵
PID:4524

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\rzgqljgl.exe

Filesize
14.5MB

MD5
3e5a89b8c3d14b9252a73e86d96d827b

SHA1
47ce79fcdfd8445dcbeff463b6f9ad6231911692

SHA256
3fa28e660cccbb85531c2094c6b9a841fbfdcf99e34d6105c85455ff8f048659

SHA512
3bfb3b5962ae11988a1bd83f581185b9a991ca96f4018bac804110df3514e7d6375b5c7ce59dffaca142a76bee24e426e0640b33ccc593952e49e22def9171eb

Download Submit
memory/860-13-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/860-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/860-12-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/860-18-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3140-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3140-2-0x0000000002050000-0x0000000002063000-memory.dmp

Filesize
76KB

Download
memory/3140-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3140-9-0x0000000002050000-0x0000000002063000-memory.dmp

Filesize
76KB

Download
memory/3140-8-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3140-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/3348-14-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/3348-16-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/3348-17-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads