tofsee | cd49e88abc766e9e6577b1e7d8b0c4b27df164e7067039ae11ff78c2b0166bb2

General

Target

4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe
Size

10.9MB
MD5

4276d6e574f6400e64b3f2a1dae82741
SHA1

aa8086e024027c58126f30047092b43651c0da35
SHA256

cd49e88abc766e9e6577b1e7d8b0c4b27df164e7067039ae11ff78c2b0166bb2
SHA512

859c90ab3290144e7aef08e9fa126943e28a570da620d46365967c15da158e984a99735352d6c2b099d148cdaa7080066f7c51f160e6884f7eecde25235e540f
SSDEEP

196608:tXPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP3:t

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\mwiiijtd = "0"	svchost.exe

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

2784 netsh.exe

pid	process
2784	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\mwiiijtd\ImagePath = "C:\\Windows\\SysWOW64\\mwiiijtd\\afbtrug.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2744 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

afbtrug.exe

pid process

2688 afbtrug.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

afbtrug.exe

description pid process target process

PID 2688 set thread context of 2744 2688 afbtrug.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

1020 sc.exe
588 sc.exe
264 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2744	svchost.exe

pid	process
2688	afbtrug.exe

description	pid	process	target process
PID 2688 set thread context of 2744	2688	afbtrug.exe	svchost.exe

pid	process
1020	sc.exe
588	sc.exe
264	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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exeafbtrug.exe

description	pid	process	target process
PID 1748 wrote to memory of 1736	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 1736	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 1736	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 1736	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 2336	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 2336	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 2336	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 2336	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	cmd.exe
PID 1748 wrote to memory of 1020	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 1020	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 1020	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 1020	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 588	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 588	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 588	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 588	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 264	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 264	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 264	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 264	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	sc.exe
PID 1748 wrote to memory of 2784	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	netsh.exe
PID 1748 wrote to memory of 2784	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	netsh.exe
PID 1748 wrote to memory of 2784	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	netsh.exe
PID 1748 wrote to memory of 2784	1748	4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe	netsh.exe
PID 2688 wrote to memory of 2744	2688	afbtrug.exe	svchost.exe
PID 2688 wrote to memory of 2744	2688	afbtrug.exe	svchost.exe
PID 2688 wrote to memory of 2744	2688	afbtrug.exe	svchost.exe
PID 2688 wrote to memory of 2744	2688	afbtrug.exe	svchost.exe
PID 2688 wrote to memory of 2744	2688	afbtrug.exe	svchost.exe
PID 2688 wrote to memory of 2744	2688	afbtrug.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1748

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mwiiijtd\
2⤵
PID:1736

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\afbtrug.exe" C:\Windows\SysWOW64\mwiiijtd\
2⤵
PID:2336

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create mwiiijtd binPath= "C:\Windows\SysWOW64\mwiiijtd\afbtrug.exe /d\"C:\Users\Admin\AppData\Local\Temp\4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1020

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description mwiiijtd "wifi internet conection"
2⤵
- Launches sc.exe
PID:588

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start mwiiijtd
2⤵
- Launches sc.exe
PID:264

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:2784

C:\Windows\SysWOW64\mwiiijtd\afbtrug.exe
C:\Windows\SysWOW64\mwiiijtd\afbtrug.exe /d"C:\Users\Admin\AppData\Local\Temp\4276d6e574f6400e64b3f2a1dae82741_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2688

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2744

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\afbtrug.exe
Filesize
14.7MB

MD5
36ed6d0885be8e281cb1afdaa29ffd07

SHA1
5daaf1246d25d0fcf2bbfd45ddcaf3ca7e6f2b4b

SHA256
671478a2a36a6c62bfbde1f00ceb78d1f4b50603e267a55730117bd505657f30

SHA512
356f6e23ad78d860bbb7ba508de7ab31fec7ce30876e4a3f0d2a956001adeb5cc26492a9bc8c171c769ae4a2ed3fa1e6b404b5efae5f5183222a4712cdd5b459

Download Submit
memory/1748-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/1748-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1748-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1748-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1748-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1748-1-0x0000000000A10000-0x0000000000B10000-memory.dmp

Filesize
1024KB

Download
memory/2688-17-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2744-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads