tofsee | a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7

General

Target

JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe
Size

296KB
MD5

bf7e2dcfd3c2efb008ef640d19b9b4f0
SHA1

41cc58c97a3d8d0d6f831852446e6c75c3799444
SHA256

a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7
SHA512

bd4df049b00e62fa4b9dcdaa39d3217ad5c44becc80bb689c89fa4ed49d7a4f1270038b6e3b6719456be976e0dbf8eafaa739a20cd1e2fb4a4b7e9452c017fca
SSDEEP

6144:6GZs4mCh2VtDSlgR7j1SaSXuZet0yy80uleoJTSjlZA8:lrhh2V9R75SaSXuZet0yy80uleFjlZ

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
2156	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\oevftqib\ImagePath = "C:\\Windows\\SysWOW64\\oevftqib\\fsbyzeqd.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe

Deletes itself 1 IoCs

pid	Process
2552	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1468	fsbyzeqd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1468 set thread context of 2552	1468	fsbyzeqd.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3776	sc.exe
2180	sc.exe
2996	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
3388	4308	WerFault.exe	82
4880	1468	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.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	fsbyzeqd.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 4308 wrote to memory of 3520	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	83
PID 4308 wrote to memory of 3520	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	83
PID 4308 wrote to memory of 3520	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	83
PID 4308 wrote to memory of 3824	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	85
PID 4308 wrote to memory of 3824	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	85
PID 4308 wrote to memory of 3824	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	85
PID 4308 wrote to memory of 3776	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	88
PID 4308 wrote to memory of 3776	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	88
PID 4308 wrote to memory of 3776	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	88
PID 4308 wrote to memory of 2180	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	90
PID 4308 wrote to memory of 2180	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	90
PID 4308 wrote to memory of 2180	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	90
PID 4308 wrote to memory of 2996	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	92
PID 4308 wrote to memory of 2996	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	92
PID 4308 wrote to memory of 2996	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	92
PID 4308 wrote to memory of 2156	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	95
PID 4308 wrote to memory of 2156	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	95
PID 4308 wrote to memory of 2156	4308	JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe	95
PID 1468 wrote to memory of 2552	1468	fsbyzeqd.exe	101
PID 1468 wrote to memory of 2552	1468	fsbyzeqd.exe	101
PID 1468 wrote to memory of 2552	1468	fsbyzeqd.exe	101
PID 1468 wrote to memory of 2552	1468	fsbyzeqd.exe	101
PID 1468 wrote to memory of 2552	1468	fsbyzeqd.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oevftqib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fsbyzeqd.exe" C:\Windows\SysWOW64\oevftqib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oevftqib binPath= "C:\Windows\SysWOW64\oevftqib\fsbyzeqd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oevftqib "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oevftqib
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2996
- 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:2156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 1228
  2⤵
  - Program crash
  PID:3388

C:\Windows\SysWOW64\oevftqib\fsbyzeqd.exe
C:\Windows\SysWOW64\oevftqib\fsbyzeqd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 508
  2⤵
  - Program crash
  PID:4880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4308 -ip 4308
1⤵
PID:640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1468 -ip 1468
1⤵
PID:2260

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\fsbyzeqd.exe

Filesize
14.9MB

MD5
19b36fc9a647c7f06a89d347d2a41b7b

SHA1
90a1ca88fe4c2163b9daf3728c4f6e4fb6db50da

SHA256
24bb64c4a334559fa191180d5ac34e6f1973f567320b9c9108eb68c17f07bf8e

SHA512
145cf52a61428e0cf7e881c8eca8f2f704282b78d43e391693973adb4b7d06402b30ad732976727054b5126083737b73458b1eeb3b3797e62fe4f2a212c18b67

Download Submit
memory/1468-15-0x0000000000400000-0x0000000001C00000-memory.dmp

Filesize
24.0MB

Download
memory/2552-11-0x0000000000F80000-0x0000000000F95000-memory.dmp

Filesize
84KB

Download
memory/2552-13-0x0000000000F80000-0x0000000000F95000-memory.dmp

Filesize
84KB

Download
memory/2552-14-0x0000000000F80000-0x0000000000F95000-memory.dmp

Filesize
84KB

Download
memory/4308-1-0x0000000001F00000-0x0000000002000000-memory.dmp

Filesize
1024KB

Download
memory/4308-2-0x0000000001EA0000-0x0000000001EB3000-memory.dmp

Filesize
76KB

Download
memory/4308-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4308-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4308-8-0x0000000001EA0000-0x0000000001EB3000-memory.dmp

Filesize
76KB

Download
memory/4308-7-0x0000000000400000-0x0000000001C00000-memory.dmp

Filesize
24.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads