tofsee | 8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e

General

Target

JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe
Size

159KB
MD5

60581cefc3ebdcfba7ab65039c713789
SHA1

579d83b65618226c00de84c4b767369cc80db1e8
SHA256

8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e
SHA512

a4756078c21afaf68e836bc66b21889ecf6c19530e16e14fd919cef3e550075ad34e5a8f43b306a351c79d97ce7fc9e5a47d38b3f488cf7298124ac940634e1f
SSDEEP

3072:Z47FGXpybBYZZhvV97DxqSeFdywcIWnv3/35ugf8FtKZ7Ev2:ZHpybBYZZhb7dqSqdNBWn3p84m

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
3144	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\gmcnaplx\ImagePath = "C:\\Windows\\SysWOW64\\gmcnaplx\\ixcdxfib.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe

Deletes itself 1 IoCs

pid	Process
732	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
668	ixcdxfib.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 668 set thread context of 732	668	ixcdxfib.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
3512	sc.exe
4604	sc.exe
4024	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
1332	668	WerFault.exe	92
5052	3580	WerFault.exe	81

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_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ixcdxfib.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	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 3580 wrote to memory of 4832	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	82
PID 3580 wrote to memory of 4832	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	82
PID 3580 wrote to memory of 4832	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	82
PID 3580 wrote to memory of 2820	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	84
PID 3580 wrote to memory of 2820	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	84
PID 3580 wrote to memory of 2820	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	84
PID 3580 wrote to memory of 4604	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	86
PID 3580 wrote to memory of 4604	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	86
PID 3580 wrote to memory of 4604	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	86
PID 3580 wrote to memory of 4024	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	88
PID 3580 wrote to memory of 4024	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	88
PID 3580 wrote to memory of 4024	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	88
PID 3580 wrote to memory of 3512	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	90
PID 3580 wrote to memory of 3512	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	90
PID 3580 wrote to memory of 3512	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	90
PID 668 wrote to memory of 732	668	ixcdxfib.exe	93
PID 668 wrote to memory of 732	668	ixcdxfib.exe	93
PID 668 wrote to memory of 732	668	ixcdxfib.exe	93
PID 668 wrote to memory of 732	668	ixcdxfib.exe	93
PID 668 wrote to memory of 732	668	ixcdxfib.exe	93
PID 3580 wrote to memory of 3144	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	96
PID 3580 wrote to memory of 3144	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	96
PID 3580 wrote to memory of 3144	3580	JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gmcnaplx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ixcdxfib.exe" C:\Windows\SysWOW64\gmcnaplx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gmcnaplx binPath= "C:\Windows\SysWOW64\gmcnaplx\ixcdxfib.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gmcnaplx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gmcnaplx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3512
- 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:3144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 1036
  2⤵
  - Program crash
  PID:5052

C:\Windows\SysWOW64\gmcnaplx\ixcdxfib.exe
C:\Windows\SysWOW64\gmcnaplx\ixcdxfib.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8745eebbbf3398803f2d705627196b59071b4d327af4c98d461983d5427e6a7e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:668
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 668 -s 536
  2⤵
  - Program crash
  PID:1332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 668 -ip 668
1⤵
PID:3284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3580 -ip 3580
1⤵
PID:224

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\ixcdxfib.exe

Filesize
12.4MB

MD5
348c9a0108e6a0c4e465ddb420516181

SHA1
d115def2950c36e541b0940984b0fffdb574e439

SHA256
b9a08c5f2487dea381ea9eaea18009ffe4403a24cd20e232810bd94c750f66f2

SHA512
08e0883ad6d9bfa55fcdd373f6205c9789953f781b149b6868bef9d2a2fc7a5bf7f3fc60b2333b1cecd1aad57fea971e52a0c97f4970ed1e1a521e1b3a29c22e

Download Submit
memory/668-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/668-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/668-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/668-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/732-12-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/732-9-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/732-19-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/732-20-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/732-21-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/3580-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3580-0-0x00000000006D0000-0x00000000006DD000-memory.dmp

Filesize
52KB

Download
memory/3580-1-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3580-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3580-16-0x00000000006D0000-0x00000000006DD000-memory.dmp

Filesize
52KB

Download
memory/3580-17-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3580-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads