tofsee | 81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618

General

Target

JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe
Size

254KB
MD5

74629d3db7f637e0f797ffe848292c52
SHA1

661a8a084530e9bffb3c864d0a303a525af2ba23
SHA256

81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618
SHA512

c25e786fc5902f38ade2d60d06517f9d0e32004065b19d8be9ded5577019d9e48449e8832f3d7a37547096b4c7c18ae9a4e6d37701f1bece314dfdb8b3515fee
SSDEEP

6144:Fu5D3sXRTvOeg0Fdi/DOSchxOtGPoGial4zQ:c9Indi/DOHiGPqP

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
1740	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\xtyfetst\ImagePath = "C:\\Windows\\SysWOW64\\xtyfetst\\bgfdtzix.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_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe

Deletes itself 1 IoCs

pid	Process
4168	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4432	bgfdtzix.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4432 set thread context of 4168	4432	bgfdtzix.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1196	sc.exe
4680	sc.exe
3124	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
4648	4316	WerFault.exe	82
4628	4432	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	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	bgfdtzix.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 4812	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	83
PID 4316 wrote to memory of 4812	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	83
PID 4316 wrote to memory of 4812	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	83
PID 4316 wrote to memory of 3192	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	85
PID 4316 wrote to memory of 3192	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	85
PID 4316 wrote to memory of 3192	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	85
PID 4316 wrote to memory of 1196	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	88
PID 4316 wrote to memory of 1196	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	88
PID 4316 wrote to memory of 1196	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	88
PID 4316 wrote to memory of 4680	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	90
PID 4316 wrote to memory of 4680	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	90
PID 4316 wrote to memory of 4680	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	90
PID 4316 wrote to memory of 3124	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	92
PID 4316 wrote to memory of 3124	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	92
PID 4316 wrote to memory of 3124	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	92
PID 4316 wrote to memory of 1740	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	95
PID 4316 wrote to memory of 1740	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	95
PID 4316 wrote to memory of 1740	4316	JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe	95
PID 4432 wrote to memory of 4168	4432	bgfdtzix.exe	101
PID 4432 wrote to memory of 4168	4432	bgfdtzix.exe	101
PID 4432 wrote to memory of 4168	4432	bgfdtzix.exe	101
PID 4432 wrote to memory of 4168	4432	bgfdtzix.exe	101
PID 4432 wrote to memory of 4168	4432	bgfdtzix.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xtyfetst\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bgfdtzix.exe" C:\Windows\SysWOW64\xtyfetst\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xtyfetst binPath= "C:\Windows\SysWOW64\xtyfetst\bgfdtzix.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xtyfetst "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xtyfetst
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3124
- 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:1740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 1044
  2⤵
  - Program crash
  PID:4648

C:\Windows\SysWOW64\xtyfetst\bgfdtzix.exe
C:\Windows\SysWOW64\xtyfetst\bgfdtzix.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81adb918945e7db12db84a7cbbc85c08f8d43fcc933bfbfe8f7715a6de900618.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 532
  2⤵
  - Program crash
  PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4316 -ip 4316
1⤵
PID:4436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4432 -ip 4432
1⤵
PID:4184

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\bgfdtzix.exe

Filesize
13.1MB

MD5
107695adb59ca4e411b00cd47143532f

SHA1
4f2a7507c9f3cec926a73bc59909f24b13cd5980

SHA256
1a962eb337887704a57a4e4c2231830ad5013fba0fe5163c83c91d8f44b781ed

SHA512
659fe0cd14c50fc40bd9166ce4e3891a7cbc0bc297c90e4769f4bfcde6d72090554bfa560ab227de97d15f46c379be98d9a5b2ba81fe2323a66535ad75deddd9

Download Submit
memory/4168-11-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/4168-13-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/4168-14-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/4316-1-0x00000000011E0000-0x00000000012E0000-memory.dmp

Filesize
1024KB

Download
memory/4316-2-0x0000000002C90000-0x0000000002CA3000-memory.dmp

Filesize
76KB

Download
memory/4316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4316-7-0x0000000000400000-0x0000000001085000-memory.dmp

Filesize
12.5MB

Download
memory/4316-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4316-8-0x0000000002C90000-0x0000000002CA3000-memory.dmp

Filesize
76KB

Download
memory/4432-15-0x0000000000400000-0x0000000001085000-memory.dmp

Filesize
12.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads