tofsee | 8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861

General

Target

JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe
Size

238KB
MD5

408c1945565f2750805d4794738e9ac6
SHA1

5337152dea98cc8689642d06b1dd401a36576dee
SHA256

8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861
SHA512

2ca65d40c0984003654c6f49f1258ac584b742932e2b5935d0d197d8771ea6e75a12aafc9983c9dee2ba318786be9d7def38690ee7bd2b0a875e61b601afd613
SSDEEP

6144:p3ZQq23DLJtr0Cl20X3pZxbkToSdx5pgG5H:BZWJtrPlVZxoESJn

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.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
264	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\sswsfeuq\ImagePath = "C:\\Windows\\SysWOW64\\sswsfeuq\\jmfnlnvf.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_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe

Deletes itself 1 IoCs

pid	Process
2044	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3780	jmfnlnvf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3780 set thread context of 2044	3780	jmfnlnvf.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
840	sc.exe
3176	sc.exe
4496	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
848	1216	WerFault.exe	83
3964	3780	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jmfnlnvf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 3332	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	84
PID 1216 wrote to memory of 3332	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	84
PID 1216 wrote to memory of 3332	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	84
PID 1216 wrote to memory of 2824	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	86
PID 1216 wrote to memory of 2824	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	86
PID 1216 wrote to memory of 2824	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	86
PID 1216 wrote to memory of 4496	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	88
PID 1216 wrote to memory of 4496	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	88
PID 1216 wrote to memory of 4496	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	88
PID 1216 wrote to memory of 840	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	90
PID 1216 wrote to memory of 840	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	90
PID 1216 wrote to memory of 840	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	90
PID 1216 wrote to memory of 3176	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	92
PID 1216 wrote to memory of 3176	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	92
PID 1216 wrote to memory of 3176	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	92
PID 1216 wrote to memory of 264	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	95
PID 1216 wrote to memory of 264	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	95
PID 1216 wrote to memory of 264	1216	JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe	95
PID 3780 wrote to memory of 2044	3780	jmfnlnvf.exe	101
PID 3780 wrote to memory of 2044	3780	jmfnlnvf.exe	101
PID 3780 wrote to memory of 2044	3780	jmfnlnvf.exe	101
PID 3780 wrote to memory of 2044	3780	jmfnlnvf.exe	101
PID 3780 wrote to memory of 2044	3780	jmfnlnvf.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sswsfeuq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jmfnlnvf.exe" C:\Windows\SysWOW64\sswsfeuq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sswsfeuq binPath= "C:\Windows\SysWOW64\sswsfeuq\jmfnlnvf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sswsfeuq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sswsfeuq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3176
- 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:264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1216 -s 1036
  2⤵
  - Program crash
  PID:848

C:\Windows\SysWOW64\sswsfeuq\jmfnlnvf.exe
C:\Windows\SysWOW64\sswsfeuq\jmfnlnvf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e153af80a5bda2c33eac3b4dfba3fe2bffd0b7e5c2f8420e4a0c2472a68a861.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3780
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 532
  2⤵
  - Program crash
  PID:3964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1216 -ip 1216
1⤵
PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3780 -ip 3780
1⤵
PID:636

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\jmfnlnvf.exe

Filesize
11.6MB

MD5
bf4ac7be39de2776b5501e65fd3e0dbc

SHA1
097c23bd5e07180af5c0ef2afc9dcd73d62ebb56

SHA256
3b4004ba61882423f320f85edd881a6a44da25f65dab3419f29ca2eaa3f5e9d1

SHA512
9eea44676e3bff504dfdc46dc9ecb101729de12830e6e0ff764211c7f58e6483568ed254b4a8316604784547088bcb4a208ca834ed4a6ce849d1992e5c4da4ec

Download Submit
memory/1216-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1216-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1216-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1216-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1216-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1216-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/2044-13-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2044-15-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2044-16-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/3780-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3780-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3780-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads