tofsee | 2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0

General

Target

JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe
Size

333KB
MD5

0d81591c91af26ef156bb2303634dc1c
SHA1

75fe41b23cd10e46789557d7291bb3d5a41f5d06
SHA256

2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0
SHA512

0bd8277d5f6d3a348d280122a089cda996936023ff7e9fd849cb684ddd3403c9ed90e6431d15be608207f5f590a49653b350423811d74d98a5aa0d7a6bbcae71
SSDEEP

6144:xo2WWlmy0uqXGcQnZrwdVi0prOJLZZ5e6719ZIe:+2WWlmnRQnZrwdVi0hcLZZxpDIe

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
3736	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\byhzfzho\ImagePath = "C:\\Windows\\SysWOW64\\byhzfzho\\glvlze.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe

Deletes itself 1 IoCs

pid	Process
1840	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	glvlze.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 1840	2788	glvlze.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4592	sc.exe
1704	sc.exe
1552	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4832	3528	WerFault.exe	81
1860	2788	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	glvlze.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.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 3528 wrote to memory of 4648	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	82
PID 3528 wrote to memory of 4648	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	82
PID 3528 wrote to memory of 4648	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	82
PID 3528 wrote to memory of 3640	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	84
PID 3528 wrote to memory of 3640	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	84
PID 3528 wrote to memory of 3640	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	84
PID 3528 wrote to memory of 4592	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	86
PID 3528 wrote to memory of 4592	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	86
PID 3528 wrote to memory of 4592	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	86
PID 3528 wrote to memory of 1704	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	88
PID 3528 wrote to memory of 1704	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	88
PID 3528 wrote to memory of 1704	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	88
PID 3528 wrote to memory of 1552	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	90
PID 3528 wrote to memory of 1552	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	90
PID 3528 wrote to memory of 1552	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	90
PID 3528 wrote to memory of 3736	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	93
PID 3528 wrote to memory of 3736	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	93
PID 3528 wrote to memory of 3736	3528	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	93
PID 2788 wrote to memory of 1840	2788	glvlze.exe	98
PID 2788 wrote to memory of 1840	2788	glvlze.exe	98
PID 2788 wrote to memory of 1840	2788	glvlze.exe	98
PID 2788 wrote to memory of 1840	2788	glvlze.exe	98
PID 2788 wrote to memory of 1840	2788	glvlze.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\byhzfzho\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\glvlze.exe" C:\Windows\SysWOW64\byhzfzho\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create byhzfzho binPath= "C:\Windows\SysWOW64\byhzfzho\glvlze.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description byhzfzho "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start byhzfzho
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1552
- 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:3736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 648
  2⤵
  - Program crash
  PID:4832

C:\Windows\SysWOW64\byhzfzho\glvlze.exe
C:\Windows\SysWOW64\byhzfzho\glvlze.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 508
  2⤵
  - Program crash
  PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3528 -ip 3528
1⤵
PID:3840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2788 -ip 2788
1⤵
PID:3824

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\glvlze.exe

Filesize
13.4MB

MD5
a8047c7d6a1b7d6a670d5ffef12988d8

SHA1
cc33925197668f4ccc75c9bad74e15d1face1563

SHA256
0d4404ca4b3fabbfb9ffc2c5a11480de14d80d7ac20d8ee21a8ac074c5570f55

SHA512
c4d11610dc4240e58f90deedbb650a145df4e3534617e1d4604d118c81d804aef639e704715e5fec15fab0fff0d9d7ad2a79250ad864613909b79564df42be4e

Download Submit
memory/1840-11-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/1840-13-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/1840-14-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/2788-15-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/3528-1-0x0000000002D20000-0x0000000002E20000-memory.dmp

Filesize
1024KB

Download
memory/3528-2-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/3528-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3528-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3528-8-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/3528-7-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads