tofsee | 610cb49791e670b6896af06ee549ee7aa56979e10e0b353044949ccb3ad42c7e

General

Target

f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe
Size

13.8MB
MD5

f3f2db53df6a8bfacad1f9505974507b
SHA1

af188ac402c82241975cb6ff17faf8314fd6c80d
SHA256

610cb49791e670b6896af06ee549ee7aa56979e10e0b353044949ccb3ad42c7e
SHA512

a1ec956694c021bb4a89c1b0543e52462461e2ffcc70f04ea29a3f4c509784e65997602835df1867905e2cc466c1f8bd8d7755abee8d3a33ce02ab40a38426e4
SSDEEP

49152:cjrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrn:W

Score

10^/10

tofsee evasion persistence 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\smtcwwxh = "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

2960 netsh.exe

pid	process
2960	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\smtcwwxh\ImagePath = "C:\\Windows\\SysWOW64\\smtcwwxh\\otggjiyd.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2704 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

otggjiyd.exe

pid process

2804 otggjiyd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

otggjiyd.exe

description pid process target process

PID 2804 set thread context of 2704 2804 otggjiyd.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

3020 sc.exe
2604 sc.exe
2552 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2704	svchost.exe

pid	process
2804	otggjiyd.exe

description	pid	process	target process
PID 2804 set thread context of 2704	2804	otggjiyd.exe	svchost.exe

pid	process
3020	sc.exe
2604	sc.exe
2552	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exeotggjiyd.exe

description	pid	process	target process
PID 2320 wrote to memory of 2948	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 2948	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 2948	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 2948	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 2952	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 2952	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 2952	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 2952	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	cmd.exe
PID 2320 wrote to memory of 3020	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 3020	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 3020	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 3020	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2604	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2604	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2604	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2604	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2552	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2552	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2552	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2320 wrote to memory of 2552	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	sc.exe
PID 2804 wrote to memory of 2704	2804	otggjiyd.exe	svchost.exe
PID 2804 wrote to memory of 2704	2804	otggjiyd.exe	svchost.exe
PID 2804 wrote to memory of 2704	2804	otggjiyd.exe	svchost.exe
PID 2804 wrote to memory of 2704	2804	otggjiyd.exe	svchost.exe
PID 2804 wrote to memory of 2704	2804	otggjiyd.exe	svchost.exe
PID 2804 wrote to memory of 2704	2804	otggjiyd.exe	svchost.exe
PID 2320 wrote to memory of 2960	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	netsh.exe
PID 2320 wrote to memory of 2960	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	netsh.exe
PID 2320 wrote to memory of 2960	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	netsh.exe
PID 2320 wrote to memory of 2960	2320	f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2320

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\smtcwwxh\
2⤵
PID:2948

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otggjiyd.exe" C:\Windows\SysWOW64\smtcwwxh\
2⤵
PID:2952

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create smtcwwxh binPath= "C:\Windows\SysWOW64\smtcwwxh\otggjiyd.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3020

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description smtcwwxh "wifi internet conection"
2⤵
- Launches sc.exe
PID:2604

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start smtcwwxh
2⤵
- Launches sc.exe
PID:2552

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:2960

C:\Windows\SysWOW64\smtcwwxh\otggjiyd.exe
C:\Windows\SysWOW64\smtcwwxh\otggjiyd.exe /d"C:\Users\Admin\AppData\Local\Temp\f3f2db53df6a8bfacad1f9505974507b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2804

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2704

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

Loading Replay Monitor...

Downloads

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

Filesize
12.0MB

MD5
4c01d2036b2d877145020d6f4aa0b349

SHA1
075774e46a25aa04683501f0ba6b38c214f0bb18

SHA256
bb0557cc918b9e40f9ee6654eb197b7d620d73da0cbbf15c051a62534a25fcc1

SHA512
37c59a5e7c5bb3895836c3e17f4cb759bb05c04491294a6b8efc822c66bb309306b664f1f785a0c2783d61d199347128c31af926f62e14e26168d83d3d134c5f

Download Submit
memory/2320-18-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2320-2-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2320-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2320-1-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2320-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2704-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-8-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2804-15-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2804-7-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads