tofsee | 89751a7a1ddea2e417a8d1a5bc3f151bb200b7975021fd5d2f660191566dfeb7

General

Target

65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe
Size

13.8MB
MD5

65550e023e65942000dcc1c5a111c7ea
SHA1

fca59ba6b82b3b8e9d36b8b6be8c9e49868393eb
SHA256

89751a7a1ddea2e417a8d1a5bc3f151bb200b7975021fd5d2f660191566dfeb7
SHA512

86bc3b1707f20c47f3d12886e01d00efcbec20662f0e1287883142c51ae41655e1b3795d2d6dfc62c5a94d734991952002f442cb20d7daf0f075b78e71dfb891
SSDEEP

49152:Tyn7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x7x3:Ty

Score

10^/10

tofsee evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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\yyebzpjs = "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

2764 netsh.exe

pid	process
2764	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\yyebzpjs\ImagePath = "C:\\Windows\\SysWOW64\\yyebzpjs\\qynrecll.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2200 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qynrecll.exe

pid process

2736 qynrecll.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qynrecll.exe

description pid process target process

PID 2736 set thread context of 2200 2736 qynrecll.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

2300 sc.exe
580 sc.exe
2672 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2200	svchost.exe

pid	process
2736	qynrecll.exe

description	pid	process	target process
PID 2736 set thread context of 2200	2736	qynrecll.exe	svchost.exe

pid	process
2300	sc.exe
580	sc.exe
2672	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:

65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exeqynrecll.exe

description	pid	process	target process
PID 1864 wrote to memory of 2056	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2056	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2056	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2056	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2352	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2352	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2352	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2352	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	cmd.exe
PID 1864 wrote to memory of 2300	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2300	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2300	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2300	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 580	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 580	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 580	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 580	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2672	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2672	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2672	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2672	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	sc.exe
PID 1864 wrote to memory of 2764	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	netsh.exe
PID 1864 wrote to memory of 2764	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	netsh.exe
PID 1864 wrote to memory of 2764	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	netsh.exe
PID 1864 wrote to memory of 2764	1864	65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe	netsh.exe
PID 2736 wrote to memory of 2200	2736	qynrecll.exe	svchost.exe
PID 2736 wrote to memory of 2200	2736	qynrecll.exe	svchost.exe
PID 2736 wrote to memory of 2200	2736	qynrecll.exe	svchost.exe
PID 2736 wrote to memory of 2200	2736	qynrecll.exe	svchost.exe
PID 2736 wrote to memory of 2200	2736	qynrecll.exe	svchost.exe
PID 2736 wrote to memory of 2200	2736	qynrecll.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1864

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yyebzpjs\
2⤵
PID:2056

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qynrecll.exe" C:\Windows\SysWOW64\yyebzpjs\
2⤵
PID:2352

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create yyebzpjs binPath= "C:\Windows\SysWOW64\yyebzpjs\qynrecll.exe /d\"C:\Users\Admin\AppData\Local\Temp\65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2300

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description yyebzpjs "wifi internet conection"
2⤵
- Launches sc.exe
PID:580

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start yyebzpjs
2⤵
- Launches sc.exe
PID:2672

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:2764

C:\Windows\SysWOW64\yyebzpjs\qynrecll.exe
C:\Windows\SysWOW64\yyebzpjs\qynrecll.exe /d"C:\Users\Admin\AppData\Local\Temp\65550e023e65942000dcc1c5a111c7ea_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2736

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2200

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\qynrecll.exe
Filesize
14.3MB

MD5
38dc5eca35fc593eb58f04198e166a8f

SHA1
44fb73c71bc373ef13f0b9c0c93aeb277a1a21f1

SHA256
5c2cedba1e7e7a988db59d2a3b9652c84d9f322dbcbb5b0227cec7f250b6c80a

SHA512
c4aa0edeffdf95f371159966cad8a10411231650c351193c6dae5d83afe3866a765b6984286f0c19c68aa2d32253a0cb889077c72f850e8cde9b5bc489fa8b9c

Download Submit
memory/1864-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1864-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1864-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/1864-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1864-7-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2200-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2200-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2200-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2200-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2200-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-15-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads