tofsee | 61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b

General

Target

JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe
Size

335KB
MD5

4394a0493a8fafdf603860738fab4693
SHA1

5dec1c2e26e33793e1001cae187651991dc9fbeb
SHA256

61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b
SHA512

d3ca72b916bb52c54866499c1413132bf12f87f530bc6baec79ec8996eda9175a9d3d257534fc6f3bd7afe9b3730b65b053285be6a88bacd47ea4262730b188f
SSDEEP

6144:VFsDoEMUCSzZL1Fl7GEWxwNaIE/TSd0fKK2:VFIoEMvS9BFl7G9SaVTSdRx

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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
2792	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\upquovvq\ImagePath = "C:\\Windows\\SysWOW64\\upquovvq\\vnfmlcnu.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_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe

Deletes itself 1 IoCs

pid	Process
4976	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
212	vnfmlcnu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 212 set thread context of 4976	212	vnfmlcnu.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3460	sc.exe
1900	sc.exe
628	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3656	1600	WerFault.exe	82
4800	212	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	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	vnfmlcnu.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 4472	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	83
PID 1600 wrote to memory of 4472	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	83
PID 1600 wrote to memory of 4472	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	83
PID 1600 wrote to memory of 3288	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	85
PID 1600 wrote to memory of 3288	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	85
PID 1600 wrote to memory of 3288	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	85
PID 1600 wrote to memory of 1900	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	87
PID 1600 wrote to memory of 1900	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	87
PID 1600 wrote to memory of 1900	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	87
PID 1600 wrote to memory of 628	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	90
PID 1600 wrote to memory of 628	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	90
PID 1600 wrote to memory of 628	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	90
PID 1600 wrote to memory of 3460	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	92
PID 1600 wrote to memory of 3460	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	92
PID 1600 wrote to memory of 3460	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	92
PID 1600 wrote to memory of 2792	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	95
PID 1600 wrote to memory of 2792	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	95
PID 1600 wrote to memory of 2792	1600	JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe	95
PID 212 wrote to memory of 4976	212	vnfmlcnu.exe	101
PID 212 wrote to memory of 4976	212	vnfmlcnu.exe	101
PID 212 wrote to memory of 4976	212	vnfmlcnu.exe	101
PID 212 wrote to memory of 4976	212	vnfmlcnu.exe	101
PID 212 wrote to memory of 4976	212	vnfmlcnu.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\upquovvq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vnfmlcnu.exe" C:\Windows\SysWOW64\upquovvq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create upquovvq binPath= "C:\Windows\SysWOW64\upquovvq\vnfmlcnu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description upquovvq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start upquovvq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3460
- 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:2792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 772
  2⤵
  - Program crash
  PID:3656

C:\Windows\SysWOW64\upquovvq\vnfmlcnu.exe
C:\Windows\SysWOW64\upquovvq\vnfmlcnu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61f9b7dae33e4f3cdf80b5ce50d2fb285aabc4b952cf815842bbc90310785a3b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 508
  2⤵
  - Program crash
  PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1600 -ip 1600
1⤵
PID:32

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 212 -ip 212
1⤵
PID:2696

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\vnfmlcnu.exe

Filesize
12.7MB

MD5
d58891aad2c587bc5968ae4724b5183d

SHA1
9711ceed95b6c5f61b9901e037a41a3b342dbcd4

SHA256
1da3a86f7c16457a3d6480b4f33cd97443d08e7cb3bebd4d3fb9ea32096070a5

SHA512
6857976ed7bce5f29b8025259869054b1cfdbd29a4ffed86becf95dab12b77a078348ca9e2233b598f909adba5082cb9c154729481be31391ee104fd9eb573ff

Download Submit
memory/212-15-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download
memory/1600-1-0x0000000002BB0000-0x0000000002CB0000-memory.dmp

Filesize
1024KB

Download
memory/1600-2-0x00000000048A0000-0x00000000048B3000-memory.dmp

Filesize
76KB

Download
memory/1600-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1600-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1600-8-0x00000000048A0000-0x00000000048B3000-memory.dmp

Filesize
76KB

Download
memory/1600-7-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download
memory/4976-11-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download
memory/4976-13-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download
memory/4976-14-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads