tofsee | 207afd690de9d607fc945e1fbe6c5d40d9569159641a7c52d581a6affb2f3372

General

Target

12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe
Size

12.8MB
MD5

12f63bb5e734c4aa0f9e8862fbd0fd41
SHA1

c9b883f38b7d47a6c15a862df950f76997370295
SHA256

207afd690de9d607fc945e1fbe6c5d40d9569159641a7c52d581a6affb2f3372
SHA512

9e1d7b494738fd7a05978891ee3568943278cf16087da06099359233874e6dc43d58d8ec00704a99fc579e9130ff70e4177580d08855af40e4949d5833085a65
SSDEEP

12288:NdbYJ+lQMgLtAgtiMxyJFJNN0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/:PvQMwRtiMO

Score

10^/10

tofsee 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
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

Processes:

netsh.exe

pid process

1044 netsh.exe

pid	process
1044	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\flwfqmzd\ImagePath = "C:\\Windows\\SysWOW64\\flwfqmzd\\wmmmbsyq.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

Processes:

12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2172 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wmmmbsyq.exe

pid process

4308 wmmmbsyq.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wmmmbsyq.exe

description pid process target process

PID 4308 set thread context of 2172 4308 wmmmbsyq.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

4516 sc.exe
3964 sc.exe
1600 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2172	svchost.exe

pid	process
4308	wmmmbsyq.exe

description	pid	process	target process
PID 4308 set thread context of 2172	4308	wmmmbsyq.exe	svchost.exe

pid	process
4516	sc.exe
3964	sc.exe
1600	sc.exe

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

Processes:

netsh.exe

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 4 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
756	4180	WerFault.exe	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe
1320	4180	WerFault.exe	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe
3992	4308	WerFault.exe	wmmmbsyq.exe
2076	4308	WerFault.exe	wmmmbsyq.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exewmmmbsyq.exe

description	pid	process	target process
PID 4180 wrote to memory of 1580	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 1580	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 1580	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 3016	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 3016	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 3016	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 4516	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 4516	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 4516	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 3964	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 3964	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 3964	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 1600	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 1600	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 1600	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 1044	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	netsh.exe
PID 4180 wrote to memory of 1044	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	netsh.exe
PID 4180 wrote to memory of 1044	4180	12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe	netsh.exe
PID 4308 wrote to memory of 2172	4308	wmmmbsyq.exe	svchost.exe
PID 4308 wrote to memory of 2172	4308	wmmmbsyq.exe	svchost.exe
PID 4308 wrote to memory of 2172	4308	wmmmbsyq.exe	svchost.exe
PID 4308 wrote to memory of 2172	4308	wmmmbsyq.exe	svchost.exe
PID 4308 wrote to memory of 2172	4308	wmmmbsyq.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4180

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\flwfqmzd\
2⤵
PID:1580

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wmmmbsyq.exe" C:\Windows\SysWOW64\flwfqmzd\
2⤵
PID:3016

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create flwfqmzd binPath= "C:\Windows\SysWOW64\flwfqmzd\wmmmbsyq.exe /d\"C:\Users\Admin\AppData\Local\Temp\12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4516

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description flwfqmzd "wifi internet conection"
2⤵
- Launches sc.exe
PID:3964

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start flwfqmzd
2⤵
- Launches sc.exe
PID:1600

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
PID:1044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 1336
2⤵
- Program crash
PID:756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 1316
2⤵
- Program crash
PID:1320

C:\Windows\SysWOW64\flwfqmzd\wmmmbsyq.exe
C:\Windows\SysWOW64\flwfqmzd\wmmmbsyq.exe /d"C:\Users\Admin\AppData\Local\Temp\12f63bb5e734c4aa0f9e8862fbd0fd41_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4308

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 512
2⤵
- Program crash
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 540
2⤵
- Program crash
PID:2076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4180 -ip 4180
1⤵
PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4180 -ip 4180
1⤵
PID:2472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4308 -ip 4308
1⤵
PID:1328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4308 -ip 4308
1⤵
PID:1632

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\wmmmbsyq.exe

Filesize
12.6MB

MD5
ebb89095f724013a46d95429bcdce5a4

SHA1
acfdb36c5c3cec8af942121cd43068eed70e639c

SHA256
2053a1c8b54f72e43e55c7d8003145122d617ad0168b04800ca10a405fa3227d

SHA512
8b63a21e5d9cb738973545ddf50e93f9f647cac3931939761f3d0849291e4f2c71e17cd4c6811df60592337d9eb518831e67c0e8e10ba5bf16157e6fcbc5408e

Download Submit
memory/2172-11-0x00000000010E0000-0x00000000010F5000-memory.dmp

Filesize
84KB

Download
memory/2172-13-0x00000000010E0000-0x00000000010F5000-memory.dmp

Filesize
84KB

Download
memory/2172-15-0x00000000010E0000-0x00000000010F5000-memory.dmp

Filesize
84KB

Download
memory/4180-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/4180-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4180-2-0x00000000008E0000-0x00000000008F3000-memory.dmp

Filesize
76KB

Download
memory/4180-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4180-9-0x00000000008E0000-0x00000000008F3000-memory.dmp

Filesize
76KB

Download
memory/4180-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4308-14-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads