tofsee | 50ea203b769e19eaf7b535555780a8104fc6ace14354ac7e0886d523b78cbfe9

General

Target

076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe
Size

10.8MB
MD5

076bcfd6b8c9a2efef4226036f2a4d55
SHA1

14d9b18903be4275b5731cd53b587f7cf3d1d28b
SHA256

50ea203b769e19eaf7b535555780a8104fc6ace14354ac7e0886d523b78cbfe9
SHA512

f6948b667ef697820682c2ece4a42b343f75b2c2f1db99f6973dc66fb3015705b5a2eb2e73dc2543b1c72f671f5f2e458702014b9f06a9076cb3c483e6eba42d
SSDEEP

24576:kJQyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyn:k

Score

10^/10

tofsee evasion execution persistence privilege_escalation 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
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

2792 netsh.exe

pid	process
2792	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\xmctbbcq\ImagePath = "C:\\Windows\\SysWOW64\\xmctbbcq\\ykweepem.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2692 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ykweepem.exe

pid process

2776 ykweepem.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ykweepem.exe

description pid process target process

PID 2776 set thread context of 2692 2776 ykweepem.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

2740 sc.exe
2768 sc.exe
2800 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2692	svchost.exe

pid	process
2776	ykweepem.exe

description	pid	process	target process
PID 2776 set thread context of 2692	2776	ykweepem.exe	svchost.exe

pid	process
2740	sc.exe
2768	sc.exe
2800	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exeykweepem.exe

description	pid	process	target process
PID 2476 wrote to memory of 2216	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2216	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2216	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2216	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2936	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2936	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2936	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2936	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2800	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2800	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2800	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2800	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2740	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2740	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2740	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2740	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2768	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2768	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2768	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2768	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2792	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	netsh.exe
PID 2476 wrote to memory of 2792	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	netsh.exe
PID 2476 wrote to memory of 2792	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	netsh.exe
PID 2476 wrote to memory of 2792	2476	076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2692	2776	ykweepem.exe	svchost.exe
PID 2776 wrote to memory of 2692	2776	ykweepem.exe	svchost.exe
PID 2776 wrote to memory of 2692	2776	ykweepem.exe	svchost.exe
PID 2776 wrote to memory of 2692	2776	ykweepem.exe	svchost.exe
PID 2776 wrote to memory of 2692	2776	ykweepem.exe	svchost.exe
PID 2776 wrote to memory of 2692	2776	ykweepem.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2476

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xmctbbcq\
2⤵
PID:2216

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ykweepem.exe" C:\Windows\SysWOW64\xmctbbcq\
2⤵
PID:2936

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xmctbbcq binPath= "C:\Windows\SysWOW64\xmctbbcq\ykweepem.exe /d\"C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2800

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xmctbbcq "wifi internet conection"
2⤵
- Launches sc.exe
PID:2740

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xmctbbcq
2⤵
- Launches sc.exe
PID:2768

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:2792

C:\Windows\SysWOW64\xmctbbcq\ykweepem.exe
C:\Windows\SysWOW64\xmctbbcq\ykweepem.exe /d"C:\Users\Admin\AppData\Local\Temp\076bcfd6b8c9a2efef4226036f2a4d55_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2776

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2692

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

1

T1562

Disable or Modify System Firewall

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\ykweepem.exe
Filesize
12.7MB

MD5
f44335d14c5ade7d39049e73dd2c1138

SHA1
c2d5c731c237fb4789adcd317c962251956c3577

SHA256
b4de41e9fe233b2a1e62671333ddc8292b03c04283ea2eaa1c1989168ea40e1c

SHA512
f29853bb5c398cc3f9fc0cdb455efce0cdd533619be2fb6869cb023fa92bcd42e2e095c14ccb0b311ec8fb448392693ebc86ada28abdb304b11999c1affec6c1

Download Submit
memory/2476-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2476-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2476-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2476-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2476-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2476-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2692-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2692-16-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2692-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2692-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2776-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads