tofsee | 170929e3e7a128082f166a71988e8d97b11f5079fd7c18a780bfda25af14b0e3

General

Target

fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe
Size

12.1MB
MD5

fe3ad8a487aac9594c5a470dd46ac8e2
SHA1

9c6de17f83b0b4c5e1dda4684a0d912b1dd6271c
SHA256

170929e3e7a128082f166a71988e8d97b11f5079fd7c18a780bfda25af14b0e3
SHA512

e000963da5ef22b9fbf1aa48326fb2d79cd95ae57f8f748a2b3ae6278e72308bbbdbd501a4acc62552e78307c7cb10177339bd703eafca59810dfdeb2001aa9b
SSDEEP

24576:OlxdvCcpOKCtBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB3:OlzOR

Score

10^/10

tofsee evasion persistence 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\cjylfle = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2304 netsh.exe

pid	process
2304	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\cjylfle\ImagePath = "C:\\Windows\\SysWOW64\\cjylfle\\kcltqdpj.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2444 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kcltqdpj.exe

pid process

2732 kcltqdpj.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kcltqdpj.exe

description pid process target process

PID 2732 set thread context of 2444 2732 kcltqdpj.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

2580 sc.exe
2620 sc.exe
2416 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2444	svchost.exe

pid	process
2732	kcltqdpj.exe

description	pid	process	target process
PID 2732 set thread context of 2444	2732	kcltqdpj.exe	svchost.exe

pid	process
2580	sc.exe
2620	sc.exe
2416	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exekcltqdpj.exe

description	pid	process	target process
PID 2184 wrote to memory of 2568	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 2568	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 2568	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 2568	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 3052	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 3052	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 3052	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 3052	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	cmd.exe
PID 2184 wrote to memory of 2580	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2580	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2580	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2580	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2620	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2620	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2620	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2620	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2416	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2416	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2416	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2416	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	sc.exe
PID 2184 wrote to memory of 2304	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	netsh.exe
PID 2184 wrote to memory of 2304	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	netsh.exe
PID 2184 wrote to memory of 2304	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	netsh.exe
PID 2184 wrote to memory of 2304	2184	fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe	netsh.exe
PID 2732 wrote to memory of 2444	2732	kcltqdpj.exe	svchost.exe
PID 2732 wrote to memory of 2444	2732	kcltqdpj.exe	svchost.exe
PID 2732 wrote to memory of 2444	2732	kcltqdpj.exe	svchost.exe
PID 2732 wrote to memory of 2444	2732	kcltqdpj.exe	svchost.exe
PID 2732 wrote to memory of 2444	2732	kcltqdpj.exe	svchost.exe
PID 2732 wrote to memory of 2444	2732	kcltqdpj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2184

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cjylfle\
2⤵
PID:2568

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kcltqdpj.exe" C:\Windows\SysWOW64\cjylfle\
2⤵
PID:3052

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create cjylfle binPath= "C:\Windows\SysWOW64\cjylfle\kcltqdpj.exe /d\"C:\Users\Admin\AppData\Local\Temp\fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2580

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description cjylfle "wifi internet conection"
2⤵
- Launches sc.exe
PID:2620

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start cjylfle
2⤵
- Launches sc.exe
PID:2416

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
PID:2304

C:\Windows\SysWOW64\cjylfle\kcltqdpj.exe
C:\Windows\SysWOW64\cjylfle\kcltqdpj.exe /d"C:\Users\Admin\AppData\Local\Temp\fe3ad8a487aac9594c5a470dd46ac8e2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2732

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

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

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Downloads

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

Filesize
13.9MB

MD5
4995a143bac7b4cebca88293feff2bd9

SHA1
2dcdb8e1a25eebe3c669521afcb4851b87c8af3d

SHA256
55cb0d27aa254ba285aeec5af859dff5a3729707aad5d5e206370c6a19862785

SHA512
a7700a311eae2a3578eab5f9563cb26be3095cab507bb457829235cefd82b495200f1d411409fd5bb4381d8bbbe15870e902b44651e9d825db7869b91536696e

Download Submit
memory/2184-4-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2184-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2184-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2184-8-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2444-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2444-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2732-9-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2732-16-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2732-10-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads