tofsee | 8aed228f049439fe51a83d022609ff6f19e6fce22e6f8b5aeee41138728a7c1f

General

Target

JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe
Size

14.9MB
MD5

a4408f6558a17cd4afad28613bfee94e
SHA1

dd78fe50f4ea41ca7ae709506ea278d0968ec11c
SHA256

8aed228f049439fe51a83d022609ff6f19e6fce22e6f8b5aeee41138728a7c1f
SHA512

059cf5fde2a0577b358f1fe9fe638b401d80be35296fcdabbf28e79225c01b370f6d67e20ec16b052a9eda5f260812a61b9d9e20a9c467773a5aba7fad2f3067
SSDEEP

49152:C7G0000000000000000000000000000000000000000000000000000000000007:

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
3764	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\dzohgpaa\ImagePath = "C:\\Windows\\SysWOW64\\dzohgpaa\\tqbgeoli.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe

Deletes itself 1 IoCs

pid	Process
1480	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1936	tqbgeoli.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1936 set thread context of 1480	1936	tqbgeoli.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1036	sc.exe
2696	sc.exe
2328	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
2684	4804	WerFault.exe	82
3248	1936	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	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.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	tqbgeoli.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 3816	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	83
PID 4804 wrote to memory of 3816	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	83
PID 4804 wrote to memory of 3816	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	83
PID 4804 wrote to memory of 392	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	85
PID 4804 wrote to memory of 392	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	85
PID 4804 wrote to memory of 392	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	85
PID 4804 wrote to memory of 1036	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	87
PID 4804 wrote to memory of 1036	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	87
PID 4804 wrote to memory of 1036	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	87
PID 4804 wrote to memory of 2696	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	89
PID 4804 wrote to memory of 2696	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	89
PID 4804 wrote to memory of 2696	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	89
PID 4804 wrote to memory of 2328	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	91
PID 4804 wrote to memory of 2328	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	91
PID 4804 wrote to memory of 2328	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	91
PID 4804 wrote to memory of 3764	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	94
PID 4804 wrote to memory of 3764	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	94
PID 4804 wrote to memory of 3764	4804	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	94
PID 1936 wrote to memory of 1480	1936	tqbgeoli.exe	100
PID 1936 wrote to memory of 1480	1936	tqbgeoli.exe	100
PID 1936 wrote to memory of 1480	1936	tqbgeoli.exe	100
PID 1936 wrote to memory of 1480	1936	tqbgeoli.exe	100
PID 1936 wrote to memory of 1480	1936	tqbgeoli.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dzohgpaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tqbgeoli.exe" C:\Windows\SysWOW64\dzohgpaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dzohgpaa binPath= "C:\Windows\SysWOW64\dzohgpaa\tqbgeoli.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dzohgpaa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dzohgpaa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2328
- 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:3764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1288
  2⤵
  - Program crash
  PID:2684

C:\Windows\SysWOW64\dzohgpaa\tqbgeoli.exe
C:\Windows\SysWOW64\dzohgpaa\tqbgeoli.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 512
  2⤵
  - Program crash
  PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4804 -ip 4804
1⤵
PID:4796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1936 -ip 1936
1⤵
PID:4396

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\tqbgeoli.exe

Filesize
13.3MB

MD5
e5e4ab04b303c43a2055826fd8ec2463

SHA1
355fae1e9fd7fe72dc22e0cfdffe40a369daf4f2

SHA256
779e2ef481f0a56599f93a5ba2c53ac1b421c428937910c56b4e56dacd87d0ec

SHA512
92a26fea10f0e4327938ba20b9e4f3e73dd5f97adcb74da81ca57302ffee4656879bac9b6bf90d2e9c35f4a6799468933ca1aa95cad53aa307f858aafadc149a

Download Submit
memory/1480-11-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/1480-13-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/1480-14-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/1936-15-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/4804-1-0x0000000002FD0000-0x00000000030D0000-memory.dmp

Filesize
1024KB

Download
memory/4804-2-0x0000000002F50000-0x0000000002F63000-memory.dmp

Filesize
76KB

Download
memory/4804-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4804-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4804-9-0x0000000002F50000-0x0000000002F63000-memory.dmp

Filesize
76KB

Download
memory/4804-8-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads