tofsee | 9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a

General

Target

JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe
Size

167KB
MD5

0549a72976da108addc3768d017139c9
SHA1

47234f5fd7e7887e31f138c70a54968a91d81a81
SHA256

9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a
SHA512

d31cbc2263649268b38303811c40daee1651f4562d76face85a526e32ba340d75e7fcea695c4c83d19c7b840f38e5e9465bfce350e4dd8b5cf4fa6aacd874ff4
SSDEEP

3072:CcLgGzlfz8/TpIdGVTLwC25gOPU68zB3fBx/S9H6dYs:3rB+/TEwz5z/Ead

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
1484	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\aviordys\ImagePath = "C:\\Windows\\SysWOW64\\aviordys\\dkitythv.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_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe

Deletes itself 1 IoCs

pid	Process
3628	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3508	dkitythv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3508 set thread context of 3628	3508	dkitythv.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4528	sc.exe
4980	sc.exe
760	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
224	3084	WerFault.exe	81
1160	3508	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.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	dkitythv.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 3084 wrote to memory of 2448	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	82
PID 3084 wrote to memory of 2448	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	82
PID 3084 wrote to memory of 2448	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	82
PID 3084 wrote to memory of 4288	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	84
PID 3084 wrote to memory of 4288	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	84
PID 3084 wrote to memory of 4288	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	84
PID 3084 wrote to memory of 4528	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	86
PID 3084 wrote to memory of 4528	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	86
PID 3084 wrote to memory of 4528	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	86
PID 3084 wrote to memory of 4980	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	88
PID 3084 wrote to memory of 4980	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	88
PID 3084 wrote to memory of 4980	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	88
PID 3084 wrote to memory of 760	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	92
PID 3084 wrote to memory of 760	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	92
PID 3084 wrote to memory of 760	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	92
PID 3084 wrote to memory of 1484	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	95
PID 3084 wrote to memory of 1484	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	95
PID 3084 wrote to memory of 1484	3084	JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe	95
PID 3508 wrote to memory of 3628	3508	dkitythv.exe	102
PID 3508 wrote to memory of 3628	3508	dkitythv.exe	102
PID 3508 wrote to memory of 3628	3508	dkitythv.exe	102
PID 3508 wrote to memory of 3628	3508	dkitythv.exe	102
PID 3508 wrote to memory of 3628	3508	dkitythv.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aviordys\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dkitythv.exe" C:\Windows\SysWOW64\aviordys\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aviordys binPath= "C:\Windows\SysWOW64\aviordys\dkitythv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aviordys "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aviordys
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:760
- 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:1484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1160
  2⤵
  - Program crash
  PID:224

C:\Windows\SysWOW64\aviordys\dkitythv.exe
C:\Windows\SysWOW64\aviordys\dkitythv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f7e3c133fda9173878f3a1c3a63925a82a2cb868409ac5aacd4f92d8c94911a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3508
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3508 -s 512
  2⤵
  - Program crash
  PID:1160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3084 -ip 3084
1⤵
PID:2956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3508 -ip 3508
1⤵
PID:3460

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\dkitythv.exe

Filesize
11.2MB

MD5
9ccef91322db0a3964690f2642bfbaad

SHA1
45e48a554d87b32132160fd43f68991f0ce9bffb

SHA256
e77b69ab716153f19a682f8afad11b9f147658bfd18cb44a744ec848fcae1423

SHA512
d2e2fe3ed58b9b3c37b845faa209a845a25d2f978cf924d0421792cd079838b9de87407d8cdc0d95af00cede2ecea3971fb4bf2b36aaf0d1190304ae331705a7

Download Submit
memory/3084-9-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download
memory/3084-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3084-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/3084-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3084-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3084-2-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download
memory/3508-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3508-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3508-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3508-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3628-14-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/3628-16-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/3628-17-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads