tofsee | fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0

General

Target

JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe
Size

344KB
MD5

e4022343f6c7ef942cc533df3e78d5ed
SHA1

b8983551fe88d4cba4bf7e0dc9f83714a5fc0a47
SHA256

fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0
SHA512

80ba74761c5b39471e558cdd9f7cf6ce8ad98f62d0b4518d5d49c145dfd7ae1b0409ab43e861ee8ae976bdc4f74d8f2edaaf80a02c6cf24dd0444d7f00044e02
SSDEEP

6144:Ymm51OozxJmVvxcJbWQ1Jr9slONxR/iQNAyukonIYq:GjJmtq1WQ1JrCMZ/iQeZPp

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
2080	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\cieemeys\ImagePath = "C:\\Windows\\SysWOW64\\cieemeys\\apuvpxat.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe

Deletes itself 1 IoCs

pid	Process
2940	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4360	apuvpxat.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4360 set thread context of 2940	4360	apuvpxat.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2456	sc.exe
3440	sc.exe
3004	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
3168	4120	WerFault.exe	81
4124	4360	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	apuvpxat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 5020	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	82
PID 4120 wrote to memory of 5020	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	82
PID 4120 wrote to memory of 5020	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	82
PID 4120 wrote to memory of 3768	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	84
PID 4120 wrote to memory of 3768	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	84
PID 4120 wrote to memory of 3768	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	84
PID 4120 wrote to memory of 2456	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	86
PID 4120 wrote to memory of 2456	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	86
PID 4120 wrote to memory of 2456	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	86
PID 4120 wrote to memory of 3440	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	88
PID 4120 wrote to memory of 3440	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	88
PID 4120 wrote to memory of 3440	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	88
PID 4120 wrote to memory of 3004	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	90
PID 4120 wrote to memory of 3004	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	90
PID 4120 wrote to memory of 3004	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	90
PID 4120 wrote to memory of 2080	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	95
PID 4120 wrote to memory of 2080	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	95
PID 4120 wrote to memory of 2080	4120	JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe	95
PID 4360 wrote to memory of 2940	4360	apuvpxat.exe	102
PID 4360 wrote to memory of 2940	4360	apuvpxat.exe	102
PID 4360 wrote to memory of 2940	4360	apuvpxat.exe	102
PID 4360 wrote to memory of 2940	4360	apuvpxat.exe	102
PID 4360 wrote to memory of 2940	4360	apuvpxat.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cieemeys\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\apuvpxat.exe" C:\Windows\SysWOW64\cieemeys\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cieemeys binPath= "C:\Windows\SysWOW64\cieemeys\apuvpxat.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cieemeys "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cieemeys
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3004
- 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:2080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 1044
  2⤵
  - Program crash
  PID:3168

C:\Windows\SysWOW64\cieemeys\apuvpxat.exe
C:\Windows\SysWOW64\cieemeys\apuvpxat.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd216da6145a26e20993ff3eb13cd76ede17cb1f6919bfad9054369c528c23c0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 512
  2⤵
  - Program crash
  PID:4124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4120 -ip 4120
1⤵
PID:3844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4360 -ip 4360
1⤵
PID:3228

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\apuvpxat.exe

Filesize
12.3MB

MD5
25813128db16074a8556be31e7a7bf28

SHA1
09227fd0abbeb4e44a6e88b15af6309e355a3676

SHA256
fb6437f1a7ade4a0fdc48e1bf66ae8ca90fc29f90028904eb361a1c11d33c4a5

SHA512
9b2f14af260f4e3b60a28eb4112070a94ed98bb181de880b738ce9aa985f8e5a29d1e088033dc94f01eaf92db4ffdfdcff0013bc6334b84dfc2d5fc33dae3d5f

Download Submit
memory/2940-11-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/2940-13-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/2940-14-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/4120-1-0x0000000002BA0000-0x0000000002CA0000-memory.dmp

Filesize
1024KB

Download
memory/4120-2-0x0000000004750000-0x0000000004763000-memory.dmp

Filesize
76KB

Download
memory/4120-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4120-8-0x0000000004750000-0x0000000004763000-memory.dmp

Filesize
76KB

Download
memory/4120-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4120-7-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download
memory/4360-15-0x0000000000400000-0x0000000002B4D000-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