tofsee | 69f551998396b69211de7617d4be4fb25eba4d5ccf33f7c2305a90a1c592e944

General

Target

1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe
Size

10.2MB
MD5

1ab83e7ec4c3ee17c1c634ab184ccb64
SHA1

a17551f428f71a31115b2bfe359180c29467e09f
SHA256

69f551998396b69211de7617d4be4fb25eba4d5ccf33f7c2305a90a1c592e944
SHA512

999892fc83da3165b84eb700276b789fa58573c3146da9c395dc40516c499698426c72db199976bfbbae4ea1a7255440e0ba12dfaf5e7d7a1c4ba6dfbc06364c
SSDEEP

49152:9PQwlooooooooooooooooooooooooooooooooooooooooooooooooooooooooooH:dQ

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

2976 netsh.exe

pid	process
2976	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\ralyzxgk\ImagePath = "C:\\Windows\\SysWOW64\\ralyzxgk\\hkidxeoy.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:

1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3920 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hkidxeoy.exe

pid process

788 hkidxeoy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hkidxeoy.exe

description pid process target process

PID 788 set thread context of 3920 788 hkidxeoy.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

2740 sc.exe
5092 sc.exe
1360 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3920	svchost.exe

pid	process
788	hkidxeoy.exe

description	pid	process	target process
PID 788 set thread context of 3920	788	hkidxeoy.exe	svchost.exe

pid	process
2740	sc.exe
5092	sc.exe
1360	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4552 4572 WerFault.exe 1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe
4604 788 WerFault.exe hkidxeoy.exe

pid	pid_target	process	target process
4552	4572	WerFault.exe	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe
4604	788	WerFault.exe	hkidxeoy.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exehkidxeoy.exe

description	pid	process	target process
PID 4572 wrote to memory of 1124	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 4572 wrote to memory of 1124	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 4572 wrote to memory of 1124	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 4572 wrote to memory of 2260	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 4572 wrote to memory of 2260	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 4572 wrote to memory of 2260	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	cmd.exe
PID 4572 wrote to memory of 2740	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 2740	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 2740	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 5092	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 5092	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 5092	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 1360	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 1360	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 1360	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	sc.exe
PID 4572 wrote to memory of 2976	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	netsh.exe
PID 4572 wrote to memory of 2976	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	netsh.exe
PID 4572 wrote to memory of 2976	4572	1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe	netsh.exe
PID 788 wrote to memory of 3920	788	hkidxeoy.exe	svchost.exe
PID 788 wrote to memory of 3920	788	hkidxeoy.exe	svchost.exe
PID 788 wrote to memory of 3920	788	hkidxeoy.exe	svchost.exe
PID 788 wrote to memory of 3920	788	hkidxeoy.exe	svchost.exe
PID 788 wrote to memory of 3920	788	hkidxeoy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4572

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ralyzxgk\
2⤵
PID:1124

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hkidxeoy.exe" C:\Windows\SysWOW64\ralyzxgk\
2⤵
PID:2260

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ralyzxgk binPath= "C:\Windows\SysWOW64\ralyzxgk\hkidxeoy.exe /d\"C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2740

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ralyzxgk "wifi internet conection"
2⤵
- Launches sc.exe
PID:5092

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ralyzxgk
2⤵
- Launches sc.exe
PID:1360

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:2976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 676
2⤵
- Program crash
PID:4552

C:\Windows\SysWOW64\ralyzxgk\hkidxeoy.exe
C:\Windows\SysWOW64\ralyzxgk\hkidxeoy.exe /d"C:\Users\Admin\AppData\Local\Temp\1ab83e7ec4c3ee17c1c634ab184ccb64_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 516
2⤵
- Program crash
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4572 -ip 4572
1⤵
PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 788 -ip 788
1⤵
PID:4732

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.0MB

MD5
8843f47fc842e4b4ed33a6614cd004bd

SHA1
dbbc5c5b1c870ee09e93b0149059fcc423340508

SHA256
45237325414af42d1095ed442dd55cc4c61fbbf9b34a0300bdb6a082e376ceea

SHA512
1f62c6d91e79ab1f50f62e3775c5d9011ca3d3297ca7fbd3ec1b60310892d6898978be1b2bcf3178b8a7cab09105ac74322002bb9e0e2bab6cc8c3bf2d055898

Download Submit
memory/788-11-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/788-17-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/788-12-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/3920-13-0x0000000000180000-0x0000000000195000-memory.dmp

Filesize
84KB

Download
memory/3920-15-0x0000000000180000-0x0000000000195000-memory.dmp

Filesize
84KB

Download
memory/3920-16-0x0000000000180000-0x0000000000195000-memory.dmp

Filesize
84KB

Download
memory/4572-9-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/4572-8-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/4572-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4572-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4572-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/4572-2-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads