tofsee | 52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33

General

Target

JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe
Size

277KB
MD5

4414f4165580b1cee38b46abc9e404ed
SHA1

6e39fcb13209a4683d3b74f9bd5ce0f67b4c8dc1
SHA256

52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33
SHA512

2d6f542377d583b45428605650aead53f837c76d7b44f177143f8885352d98838f638a5817cbf41d4713eb816565a6f11e90ac12e08e4f1df3c564277c293a45
SSDEEP

3072:n0ZpS7y4OGK7t1wzsBj694paz55PP/w4MOduPbeujgAB34LYVmjo4FUrPfoiL4m/:VdqXw4B29jPBUbeufBoc4jo4md8mrz

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
1528	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\ezeidtqd\ImagePath = "C:\\Windows\\SysWOW64\\ezeidtqd\\iojmveez.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_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe

Deletes itself 1 IoCs

pid	Process
1368	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4268	iojmveez.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4268 set thread context of 1368	4268	iojmveez.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4852	sc.exe
1448	sc.exe
1460	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4912	1544	WerFault.exe	81
2088	4268	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iojmveez.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 3616	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	82
PID 1544 wrote to memory of 3616	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	82
PID 1544 wrote to memory of 3616	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	82
PID 1544 wrote to memory of 3056	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	84
PID 1544 wrote to memory of 3056	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	84
PID 1544 wrote to memory of 3056	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	84
PID 1544 wrote to memory of 1460	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	86
PID 1544 wrote to memory of 1460	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	86
PID 1544 wrote to memory of 1460	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	86
PID 1544 wrote to memory of 4852	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	88
PID 1544 wrote to memory of 4852	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	88
PID 1544 wrote to memory of 4852	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	88
PID 1544 wrote to memory of 1448	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	90
PID 1544 wrote to memory of 1448	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	90
PID 1544 wrote to memory of 1448	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	90
PID 1544 wrote to memory of 1528	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	93
PID 1544 wrote to memory of 1528	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	93
PID 1544 wrote to memory of 1528	1544	JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe	93
PID 4268 wrote to memory of 1368	4268	iojmveez.exe	98
PID 4268 wrote to memory of 1368	4268	iojmveez.exe	98
PID 4268 wrote to memory of 1368	4268	iojmveez.exe	98
PID 4268 wrote to memory of 1368	4268	iojmveez.exe	98
PID 4268 wrote to memory of 1368	4268	iojmveez.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ezeidtqd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iojmveez.exe" C:\Windows\SysWOW64\ezeidtqd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ezeidtqd binPath= "C:\Windows\SysWOW64\ezeidtqd\iojmveez.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1460
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ezeidtqd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ezeidtqd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1448
- 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:1528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 1044
  2⤵
  - Program crash
  PID:4912

C:\Windows\SysWOW64\ezeidtqd\iojmveez.exe
C:\Windows\SysWOW64\ezeidtqd\iojmveez.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f93bb73ff8446b36a885d7cbf949a32740e8a7f8f5af3152cc402940b12b33.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4268
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4268 -s 564
  2⤵
  - Program crash
  PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1544 -ip 1544
1⤵
PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4268 -ip 4268
1⤵
PID:2060

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\iojmveez.exe

Filesize
12.6MB

MD5
a26ec3c015cdefe79ad0e55d0455ac4d

SHA1
f149d2bff3bdf2968e66827bb2661328d08f8e95

SHA256
815ce11fdc909e4988ea3d4e40914c86b6f2e76cc72af2b73fca725e0927dcbc

SHA512
d357d6c90f3951f9792574d20ed8bdcfa366df3bf058d046a41cecfa6c0db1f4ca8892d06fddd2126ef3d236a7b691b5f3ee32e8a4c8965ebd57c565455981b0

Download Submit
memory/1368-11-0x0000000001240000-0x0000000001255000-memory.dmp

Filesize
84KB

Download
memory/1368-13-0x0000000001240000-0x0000000001255000-memory.dmp

Filesize
84KB

Download
memory/1368-14-0x0000000001240000-0x0000000001255000-memory.dmp

Filesize
84KB

Download
memory/1544-1-0x00000000022C0000-0x00000000023C0000-memory.dmp

Filesize
1024KB

Download
memory/1544-2-0x0000000002280000-0x0000000002293000-memory.dmp

Filesize
76KB

Download
memory/1544-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1544-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1544-8-0x0000000002280000-0x0000000002293000-memory.dmp

Filesize
76KB

Download
memory/1544-7-0x0000000000400000-0x0000000001FCB000-memory.dmp

Filesize
27.8MB

Download
memory/4268-15-0x0000000000400000-0x0000000001FCB000-memory.dmp

Filesize
27.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads