tofsee | 425fd34fb1131f5b712ca4b861bac754a708071051a3ca3282a99eabff79a531

General

Target

f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe
Size

11.3MB
MD5

f26a8af7f9af71442c04f46b5bda6870
SHA1

f5c5d89ad5f1695d7a5fdd6a2e1f84889b46e582
SHA256

425fd34fb1131f5b712ca4b861bac754a708071051a3ca3282a99eabff79a531
SHA512

d352bf595f97c28a45186d81e20fcd4a7291e90b48b73adf268bfe1c9d979080458dee8c036c17666d31109a1e6eddef63e1cf41f653a270411013712b085762
SSDEEP

24576:YUqa71YB5DHlommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmX:YF15

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\fyueakly = "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

1896 netsh.exe

pid	process
1896	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\fyueakly\ImagePath = "C:\\Windows\\SysWOW64\\fyueakly\\zraifsey.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2460 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

zraifsey.exe

pid process

2644 zraifsey.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

zraifsey.exe

description pid process target process

PID 2644 set thread context of 2460 2644 zraifsey.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

2616 sc.exe
2604 sc.exe
2568 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2460	svchost.exe

pid	process
2644	zraifsey.exe

description	pid	process	target process
PID 2644 set thread context of 2460	2644	zraifsey.exe	svchost.exe

pid	process
2616	sc.exe
2604	sc.exe
2568	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exezraifsey.exe

description	pid	process	target process
PID 2264 wrote to memory of 2892	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 2892	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 2892	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 2892	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 1916	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 1916	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 1916	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 1916	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	cmd.exe
PID 2264 wrote to memory of 2616	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2616	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2616	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2616	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2604	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2604	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2604	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2604	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2568	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2568	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2568	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 2568	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	sc.exe
PID 2264 wrote to memory of 1896	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	netsh.exe
PID 2264 wrote to memory of 1896	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	netsh.exe
PID 2264 wrote to memory of 1896	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	netsh.exe
PID 2264 wrote to memory of 1896	2264	f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe	netsh.exe
PID 2644 wrote to memory of 2460	2644	zraifsey.exe	svchost.exe
PID 2644 wrote to memory of 2460	2644	zraifsey.exe	svchost.exe
PID 2644 wrote to memory of 2460	2644	zraifsey.exe	svchost.exe
PID 2644 wrote to memory of 2460	2644	zraifsey.exe	svchost.exe
PID 2644 wrote to memory of 2460	2644	zraifsey.exe	svchost.exe
PID 2644 wrote to memory of 2460	2644	zraifsey.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2264

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fyueakly\
2⤵
PID:2892

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zraifsey.exe" C:\Windows\SysWOW64\fyueakly\
2⤵
PID:1916

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create fyueakly binPath= "C:\Windows\SysWOW64\fyueakly\zraifsey.exe /d\"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2616

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

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start fyueakly
2⤵
- Launches sc.exe
PID:2568

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:1896

C:\Windows\SysWOW64\fyueakly\zraifsey.exe
C:\Windows\SysWOW64\fyueakly\zraifsey.exe /d"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2644

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2460

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\zraifsey.exe

Filesize
14.5MB

MD5
a49b91d6a2a17d4bd62411c9a4813bb7

SHA1
53b37d73029761f4c1c8af1469ae9bf42f5d4b78

SHA256
149def6ee9a60538f06906c66b37438ebf363835936e92e9525bddc306847b1b

SHA512
870986c4eb625db288939859a4dbeb22a9f94d1ff808828fe2d164154b76d4aa13874ede232acf13917959b5419bbe00d51722287e3f78a6911ae9843310f193

Download Submit
memory/2264-1-0x00000000008D0000-0x00000000009D0000-memory.dmp

Filesize
1024KB

Download
memory/2264-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2264-4-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2264-8-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2460-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2460-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2460-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2460-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2460-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2460-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2460-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2644-14-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2644-16-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads