tofsee | e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc

General

Target

JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe
Size

243KB
MD5

0951fa631d9b9f6c0b62c55fa8ff1c18
SHA1

1e5b62640051bb5a70aabd3189e3a09c0864e1c7
SHA256

e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc
SHA512

906bf4be6512c22ed1307fa00feed1590a3e34ba32251640211bbbcc49af33c995f32fb27dcd51fdce525b91fdd1afe1b0a22b6a912f12a521afb29d9e05488c
SSDEEP

6144:TEZQ/ISjbrjw8vNivYFigPcYTzJ8CUlB1NCUw2lqc8:AZMjXjw8vEpgPTPJR2l9

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
3456	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\vnxmrorq\ImagePath = "C:\\Windows\\SysWOW64\\vnxmrorq\\eupbvhld.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_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe

Deletes itself 1 IoCs

pid	Process
64	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4692	eupbvhld.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4692 set thread context of 64	4692	eupbvhld.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
5056	sc.exe
2248	sc.exe
664	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
5104	1648	WerFault.exe	83
2016	4692	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	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eupbvhld.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 2380	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	84
PID 1648 wrote to memory of 2380	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	84
PID 1648 wrote to memory of 2380	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	84
PID 1648 wrote to memory of 3196	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	86
PID 1648 wrote to memory of 3196	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	86
PID 1648 wrote to memory of 3196	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	86
PID 1648 wrote to memory of 2248	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	88
PID 1648 wrote to memory of 2248	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	88
PID 1648 wrote to memory of 2248	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	88
PID 1648 wrote to memory of 664	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	90
PID 1648 wrote to memory of 664	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	90
PID 1648 wrote to memory of 664	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	90
PID 1648 wrote to memory of 5056	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	92
PID 1648 wrote to memory of 5056	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	92
PID 1648 wrote to memory of 5056	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	92
PID 1648 wrote to memory of 3456	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	95
PID 1648 wrote to memory of 3456	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	95
PID 1648 wrote to memory of 3456	1648	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	95
PID 4692 wrote to memory of 64	4692	eupbvhld.exe	100
PID 4692 wrote to memory of 64	4692	eupbvhld.exe	100
PID 4692 wrote to memory of 64	4692	eupbvhld.exe	100
PID 4692 wrote to memory of 64	4692	eupbvhld.exe	100
PID 4692 wrote to memory of 64	4692	eupbvhld.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vnxmrorq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eupbvhld.exe" C:\Windows\SysWOW64\vnxmrorq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vnxmrorq binPath= "C:\Windows\SysWOW64\vnxmrorq\eupbvhld.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vnxmrorq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vnxmrorq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5056
- 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:3456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1256
  2⤵
  - Program crash
  PID:5104

C:\Windows\SysWOW64\vnxmrorq\eupbvhld.exe
C:\Windows\SysWOW64\vnxmrorq\eupbvhld.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:64
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 512
  2⤵
  - Program crash
  PID:2016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1648 -ip 1648
1⤵
PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4692 -ip 4692
1⤵
PID:5000

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\eupbvhld.exe

Filesize
10.6MB

MD5
7ba21471f436ba443d41a2eaf2a44cb5

SHA1
b26484394d18728b9948df7ebac6ce77e4cbe1ef

SHA256
08f2c7bba9f55bd47ec69146a5e89ad8c9b8a9e56bceb3bec69a9b904d701dc9

SHA512
d8ccb4e713438b4513f532e36f837366ca2a7766938bebf48879cfd8b128dd4a956ca3bb1780c04b0809455e077e04ac20878d0c4901a6fb29c595ebfee59bb5

Download Submit
memory/64-13-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/64-15-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/64-16-0x00000000004F0000-0x0000000000505000-memory.dmp

Filesize
84KB

Download
memory/1648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1648-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/1648-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1648-9-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1648-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1648-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4692-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4692-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4692-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads