tofsee | 0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2

General

Target

JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe
Size

230KB
MD5

c79b0062836359a6afbabdfb13b34fcc
SHA1

6a5885ff740bf74518930b0ba28d87a47864c7b3
SHA256

0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2
SHA512

745ac4eb9de1bcff6c0fa932a5c630a66decae332829422a9471cbbca47a79a57987c373156be66495f3bd35d60a22f406ee84a2abd69a179b6f4141de34ce9d
SSDEEP

6144:hFHDibjFQLTfWLBAvyZNWfx55C8pjzy4KGld:hFHD8jFQLCLBALaxS

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
2176	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\rsulcfsk\ImagePath = "C:\\Windows\\SysWOW64\\rsulcfsk\\mgcitdvb.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe

Deletes itself 1 IoCs

pid	Process
4436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4100	mgcitdvb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4100 set thread context of 4436	4100	mgcitdvb.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
368	sc.exe
1536	sc.exe
1680	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
3300	412	WerFault.exe	82
1360	4100	WerFault.exe	93

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	svchost.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	mgcitdvb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 2376	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	83
PID 412 wrote to memory of 2376	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	83
PID 412 wrote to memory of 2376	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	83
PID 412 wrote to memory of 1740	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	85
PID 412 wrote to memory of 1740	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	85
PID 412 wrote to memory of 1740	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	85
PID 412 wrote to memory of 368	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	87
PID 412 wrote to memory of 368	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	87
PID 412 wrote to memory of 368	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	87
PID 412 wrote to memory of 1536	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	89
PID 412 wrote to memory of 1536	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	89
PID 412 wrote to memory of 1536	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	89
PID 412 wrote to memory of 1680	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	91
PID 412 wrote to memory of 1680	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	91
PID 412 wrote to memory of 1680	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	91
PID 412 wrote to memory of 2176	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	94
PID 412 wrote to memory of 2176	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	94
PID 412 wrote to memory of 2176	412	JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe	94
PID 4100 wrote to memory of 4436	4100	mgcitdvb.exe	100
PID 4100 wrote to memory of 4436	4100	mgcitdvb.exe	100
PID 4100 wrote to memory of 4436	4100	mgcitdvb.exe	100
PID 4100 wrote to memory of 4436	4100	mgcitdvb.exe	100
PID 4100 wrote to memory of 4436	4100	mgcitdvb.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rsulcfsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mgcitdvb.exe" C:\Windows\SysWOW64\rsulcfsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rsulcfsk binPath= "C:\Windows\SysWOW64\rsulcfsk\mgcitdvb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rsulcfsk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rsulcfsk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1680
- 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:2176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 412 -s 1048
  2⤵
  - Program crash
  PID:3300

C:\Windows\SysWOW64\rsulcfsk\mgcitdvb.exe
C:\Windows\SysWOW64\rsulcfsk\mgcitdvb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ddd7c714b3483408d656eb65525498d98dc0896991670d02b5a93ecc628e9a2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4100
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 532
  2⤵
  - Program crash
  PID:1360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 412 -ip 412
1⤵
PID:908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4100 -ip 4100
1⤵
PID:4576

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\mgcitdvb.exe

Filesize
10.9MB

MD5
2465a1d024414fba3e3c728b3ba9715b

SHA1
850f6923b72b69bc59c5ebd745ccaddb51f12b3c

SHA256
7344edcc842dc7c38361b03b1a9c67d8a8fa8d8f1ec8858eea5fda5fa1623a4e

SHA512
23433c680626faa0295f1b3c1542818aacf413fa0ffefd46c370e62ddfa3a07632382372d115ed09ac3f417b56673ab31edd508125f4fc0bae8db0d0c3939694

Download Submit
memory/412-8-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/412-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/412-2-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/412-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/412-9-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/412-1-0x00000000009F0000-0x0000000000AF0000-memory.dmp

Filesize
1024KB

Download
memory/4100-12-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4100-11-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4100-18-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4436-15-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/4436-13-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/4436-16-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads