tofsee | 92342ec75f66155c2510cda2f0834da03a26f188562dfe6838ba84844e8456b2

General

Target

JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe
Size

10.6MB
MD5

abae387019fcd635f8ae3ff49ab229e7
SHA1

f094288ddd33aaff716328fff79fc453f2f4180c
SHA256

92342ec75f66155c2510cda2f0834da03a26f188562dfe6838ba84844e8456b2
SHA512

4706a3e0a98f53944a812bd27f9f0d0bb16abcaef670bfced628140dad791825700c6bc3262dba96badc927b264ce7bbce19539f92cfd743b03a2cda546b1456
SSDEEP

3072:S0dYxvqagQYPbb1gFlSLMU+++++++++++++++++++++++++++++++++++++++++L:vdYrYP1gjSI

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

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
1172	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\xdqohaau\ImagePath = "C:\\Windows\\SysWOW64\\xdqohaau\\ezdvlwyw.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_abae387019fcd635f8ae3ff49ab229e7.exe

Deletes itself 1 IoCs

pid	Process
4472	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3020	ezdvlwyw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 4472	3020	ezdvlwyw.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4404	sc.exe
1688	sc.exe
2232	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

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_abae387019fcd635f8ae3ff49ab229e7.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	ezdvlwyw.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	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 3976 wrote to memory of 3548	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	83
PID 3976 wrote to memory of 3548	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	83
PID 3976 wrote to memory of 3548	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	83
PID 3976 wrote to memory of 3144	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	85
PID 3976 wrote to memory of 3144	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	85
PID 3976 wrote to memory of 3144	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	85
PID 3976 wrote to memory of 2232	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	87
PID 3976 wrote to memory of 2232	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	87
PID 3976 wrote to memory of 2232	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	87
PID 3976 wrote to memory of 4404	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	89
PID 3976 wrote to memory of 4404	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	89
PID 3976 wrote to memory of 4404	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	89
PID 3976 wrote to memory of 1688	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	92
PID 3976 wrote to memory of 1688	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	92
PID 3976 wrote to memory of 1688	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	92
PID 3976 wrote to memory of 1172	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	95
PID 3976 wrote to memory of 1172	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	95
PID 3976 wrote to memory of 1172	3976	JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe	95
PID 3020 wrote to memory of 4472	3020	ezdvlwyw.exe	97
PID 3020 wrote to memory of 4472	3020	ezdvlwyw.exe	97
PID 3020 wrote to memory of 4472	3020	ezdvlwyw.exe	97
PID 3020 wrote to memory of 4472	3020	ezdvlwyw.exe	97
PID 3020 wrote to memory of 4472	3020	ezdvlwyw.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xdqohaau\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ezdvlwyw.exe" C:\Windows\SysWOW64\xdqohaau\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xdqohaau binPath= "C:\Windows\SysWOW64\xdqohaau\ezdvlwyw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xdqohaau "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xdqohaau
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1688
- 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:1172

C:\Windows\SysWOW64\xdqohaau\ezdvlwyw.exe
C:\Windows\SysWOW64\xdqohaau\ezdvlwyw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abae387019fcd635f8ae3ff49ab229e7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4472

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\ezdvlwyw.exe

Filesize
13.5MB

MD5
bb8e3362d254c5c1ad1a974ef61b7b38

SHA1
be2143abb8c798cd1f261ccb294c90070789b986

SHA256
5e427eda8d4dd7ba670dcda1ec3c0eed47d7db4243ed6e920912e4958a60293d

SHA512
efa098ea677d810260b2904e712ea5500a84830cf786ae8854e6b90075aa9ee5f7a7f321a6864cd57c1ac508235d1469c52f84ccd1438c6753464c3f0d9beb94

Download Submit
memory/3020-12-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3020-11-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3020-13-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3020-18-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3976-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3976-2-0x0000000000550000-0x0000000000563000-memory.dmp

Filesize
76KB

Download
memory/3976-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3976-8-0x0000000000550000-0x0000000000563000-memory.dmp

Filesize
76KB

Download
memory/3976-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3976-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/4472-14-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/4472-16-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/4472-19-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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