tofsee | ad93fa58692bf500dc7f4a54513d87f0cceeaf9a955bc3d366abd2e2bbcaeedb

General

Target

fb53a3645626f491923c495997330c8d_JaffaCakes118.exe
Size

14.8MB
MD5

fb53a3645626f491923c495997330c8d
SHA1

da6c44e90b85ea788c4076b7ed67d1b02213ccfe
SHA256

ad93fa58692bf500dc7f4a54513d87f0cceeaf9a955bc3d366abd2e2bbcaeedb
SHA512

311e78a1740839ff21a31f1082d881ce31157c11767b901bef6232b9afd34e7fe18d93badf8f54d65ef4ec1d64dcfdf7ec6cc9f1ee25429fe9c51342b0926a37
SSDEEP

24576:PjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee+:P/D

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\xgrhuwvo = "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

2528 netsh.exe

pid	process
2528	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\xgrhuwvo\ImagePath = "C:\\Windows\\SysWOW64\\xgrhuwvo\\eilhtczv.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2568 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

eilhtczv.exe

pid process

2428 eilhtczv.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

eilhtczv.exe

description pid process target process

PID 2428 set thread context of 2568 2428 eilhtczv.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

3000 sc.exe
2552 sc.exe
2648 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2568	svchost.exe

pid	process
2428	eilhtczv.exe

description	pid	process	target process
PID 2428 set thread context of 2568	2428	eilhtczv.exe	svchost.exe

pid	process
3000	sc.exe
2552	sc.exe
2648	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fb53a3645626f491923c495997330c8d_JaffaCakes118.exeeilhtczv.exe

description	pid	process	target process
PID 1152 wrote to memory of 2072	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 2072	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 2072	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 2072	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 2480	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 2480	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 2480	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 2480	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	cmd.exe
PID 1152 wrote to memory of 3000	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 3000	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 3000	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 3000	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2552	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2552	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2552	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2552	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2648	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2648	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2648	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2648	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	sc.exe
PID 1152 wrote to memory of 2528	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	netsh.exe
PID 1152 wrote to memory of 2528	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	netsh.exe
PID 1152 wrote to memory of 2528	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	netsh.exe
PID 1152 wrote to memory of 2528	1152	fb53a3645626f491923c495997330c8d_JaffaCakes118.exe	netsh.exe
PID 2428 wrote to memory of 2568	2428	eilhtczv.exe	svchost.exe
PID 2428 wrote to memory of 2568	2428	eilhtczv.exe	svchost.exe
PID 2428 wrote to memory of 2568	2428	eilhtczv.exe	svchost.exe
PID 2428 wrote to memory of 2568	2428	eilhtczv.exe	svchost.exe
PID 2428 wrote to memory of 2568	2428	eilhtczv.exe	svchost.exe
PID 2428 wrote to memory of 2568	2428	eilhtczv.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fb53a3645626f491923c495997330c8d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb53a3645626f491923c495997330c8d_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xgrhuwvo\
2⤵
PID:2072

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eilhtczv.exe" C:\Windows\SysWOW64\xgrhuwvo\
2⤵
PID:2480

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xgrhuwvo binPath= "C:\Windows\SysWOW64\xgrhuwvo\eilhtczv.exe /d\"C:\Users\Admin\AppData\Local\Temp\fb53a3645626f491923c495997330c8d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3000

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xgrhuwvo "wifi internet conection"
2⤵
- Launches sc.exe
PID:2552

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xgrhuwvo
2⤵
- Launches sc.exe
PID:2648

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:2528

C:\Windows\SysWOW64\xgrhuwvo\eilhtczv.exe
C:\Windows\SysWOW64\xgrhuwvo\eilhtczv.exe /d"C:\Users\Admin\AppData\Local\Temp\fb53a3645626f491923c495997330c8d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2428

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2568

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\eilhtczv.exe
Filesize
13.9MB

MD5
bc551fc2f4a0e636d9600f036f036652

SHA1
ffdb275385f5934fc5403da6dba4f5d91e8ee4e6

SHA256
dd4827136b4188416ea1bfd112b12d9e3bbc70c6e84dcdcf74ffc2908bbb71da

SHA512
73e3001827ca0f2e3b7c4535d0aacf7897083c766af53ee38756287e4228c9a8a021e3644607c1938c8d636f190dc2c82d6bb17ce25ccd7ca916b04ac435cd93

Download Submit
memory/1152-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/1152-2-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/1152-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1152-6-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1152-8-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/1152-7-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2428-12-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2428-11-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2428-19-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2568-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2568-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2568-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2568-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2568-23-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads