tofsee | 2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313

General

Target

JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe
Size

310KB
MD5

2c5389a25b8b4e41c9d0d9368635c66c
SHA1

0b874b47a0b5b8c971a6750d35fd1eb081ab2df8
SHA256

2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313
SHA512

43f9c4aa667fad4f1d6c31af8c0cbed18b1e66d6a0596cd04d605714813c89e621f86dd369769c8f54705b10e2b7935f1e84f0e37e64f8258c4bfc7456b86dd2
SSDEEP

6144:tSKVaczmP5HaPF4N3LnJSs0+2775wRLcacJj:tSKVaczC4PF0bJSsDVRLc

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

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
3212	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\ooonyeem\ImagePath = "C:\\Windows\\SysWOW64\\ooonyeem\\mtxwxen.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_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe

Deletes itself 1 IoCs

pid	Process
216	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4492	mtxwxen.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4492 set thread context of 216	4492	mtxwxen.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3848	sc.exe
1016	sc.exe
3196	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
3920	4492	WerFault.exe	92
3664	1504	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mtxwxen.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_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 3436	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	82
PID 1504 wrote to memory of 3436	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	82
PID 1504 wrote to memory of 3436	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	82
PID 1504 wrote to memory of 3604	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	84
PID 1504 wrote to memory of 3604	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	84
PID 1504 wrote to memory of 3604	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	84
PID 1504 wrote to memory of 3196	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	86
PID 1504 wrote to memory of 3196	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	86
PID 1504 wrote to memory of 3196	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	86
PID 1504 wrote to memory of 3848	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	88
PID 1504 wrote to memory of 3848	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	88
PID 1504 wrote to memory of 3848	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	88
PID 1504 wrote to memory of 1016	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	90
PID 1504 wrote to memory of 1016	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	90
PID 1504 wrote to memory of 1016	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	90
PID 1504 wrote to memory of 3212	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	95
PID 1504 wrote to memory of 3212	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	95
PID 1504 wrote to memory of 3212	1504	JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe	95
PID 4492 wrote to memory of 216	4492	mtxwxen.exe	98
PID 4492 wrote to memory of 216	4492	mtxwxen.exe	98
PID 4492 wrote to memory of 216	4492	mtxwxen.exe	98
PID 4492 wrote to memory of 216	4492	mtxwxen.exe	98
PID 4492 wrote to memory of 216	4492	mtxwxen.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ooonyeem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mtxwxen.exe" C:\Windows\SysWOW64\ooonyeem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ooonyeem binPath= "C:\Windows\SysWOW64\ooonyeem\mtxwxen.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ooonyeem "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ooonyeem
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1016
- 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:3212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1504 -s 1040
  2⤵
  - Program crash
  PID:3664

C:\Windows\SysWOW64\ooonyeem\mtxwxen.exe
C:\Windows\SysWOW64\ooonyeem\mtxwxen.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f09b78d9553e76cfb5f37d3b95c328c0e27492a41b053870c4cd38fe34cc313.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4492
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 516
  2⤵
  - Program crash
  PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4492 -ip 4492
1⤵
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1504 -ip 1504
1⤵
PID:208

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\mtxwxen.exe

Filesize
13.2MB

MD5
7a5d9d49dbaa79c7f34a96f7e75f488c

SHA1
7a9bea7dc988f2371fbcb2ac5d3ae303cef00048

SHA256
7de2af615c78109180ba139a5f7042fa858688e6ed17b767725996e7623ebd1f

SHA512
6fdde9275ac57f1f773cba09873b4bf358d68e87fce211e0ceff9985de9fa1d5d7a70971845122e7799fd999fbf64d05bc1efc17d28e3e44e56e48d0fcd889bb

Download Submit
memory/216-22-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/216-11-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/216-14-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/216-21-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/216-20-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/1504-17-0x0000000000400000-0x000000000056A000-memory.dmp

Filesize
1.4MB

Download
memory/1504-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/1504-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1504-1-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1504-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1504-18-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/4492-8-0x0000000000400000-0x000000000056A000-memory.dmp

Filesize
1.4MB

Download
memory/4492-16-0x0000000000400000-0x000000000056A000-memory.dmp

Filesize
1.4MB

Download
memory/4492-9-0x0000000000400000-0x000000000056A000-memory.dmp

Filesize
1.4MB

Download
memory/4492-10-0x0000000000400000-0x000000000056A000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads