tofsee | 56b3fd785408b4ca069fc4c4a53f80c0e1b03d3e72499f68277cddbdb0486998

General

Target

565a958a285f4fffa354389c636ad400_JaffaCakes118.exe
Size

10.0MB
MD5

565a958a285f4fffa354389c636ad400
SHA1

4b172419760edeb2182a36237287b8bb2deaafec
SHA256

56b3fd785408b4ca069fc4c4a53f80c0e1b03d3e72499f68277cddbdb0486998
SHA512

501156e764f521c46c8dd55cbb1b4720ffc1cc55973fa2708088b2b1c4ab0b0ab5c2a60b6fb04578c171789678264085202faa1a3183f9fb9eca1da7afbda984
SSDEEP

196608:L/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G/G4:Lwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwn

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

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\aemgcqxo = "0"	svchost.exe

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

2748 netsh.exe

pid	process
2748	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\aemgcqxo\ImagePath = "C:\\Windows\\SysWOW64\\aemgcqxo\\bnuotzmu.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2948 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

bnuotzmu.exe

pid process

2888 bnuotzmu.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

bnuotzmu.exe

description pid process target process

PID 2888 set thread context of 2948 2888 bnuotzmu.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

2744 sc.exe
2840 sc.exe
2456 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2948	svchost.exe

pid	process
2888	bnuotzmu.exe

description	pid	process	target process
PID 2888 set thread context of 2948	2888	bnuotzmu.exe	svchost.exe

pid	process
2744	sc.exe
2840	sc.exe
2456	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 opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

565a958a285f4fffa354389c636ad400_JaffaCakes118.exebnuotzmu.exe

description	pid	process	target process
PID 2064 wrote to memory of 2520	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2520	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2520	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2520	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2176	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2176	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2176	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2176	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	cmd.exe
PID 2064 wrote to memory of 2456	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2456	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2456	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2456	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2744	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2744	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2744	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2744	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2840	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2840	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2840	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2840	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	sc.exe
PID 2064 wrote to memory of 2748	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	netsh.exe
PID 2064 wrote to memory of 2748	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	netsh.exe
PID 2064 wrote to memory of 2748	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	netsh.exe
PID 2064 wrote to memory of 2748	2064	565a958a285f4fffa354389c636ad400_JaffaCakes118.exe	netsh.exe
PID 2888 wrote to memory of 2948	2888	bnuotzmu.exe	svchost.exe
PID 2888 wrote to memory of 2948	2888	bnuotzmu.exe	svchost.exe
PID 2888 wrote to memory of 2948	2888	bnuotzmu.exe	svchost.exe
PID 2888 wrote to memory of 2948	2888	bnuotzmu.exe	svchost.exe
PID 2888 wrote to memory of 2948	2888	bnuotzmu.exe	svchost.exe
PID 2888 wrote to memory of 2948	2888	bnuotzmu.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\565a958a285f4fffa354389c636ad400_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\565a958a285f4fffa354389c636ad400_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aemgcqxo\
2⤵
PID:2520

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bnuotzmu.exe" C:\Windows\SysWOW64\aemgcqxo\
2⤵
PID:2176

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create aemgcqxo binPath= "C:\Windows\SysWOW64\aemgcqxo\bnuotzmu.exe /d\"C:\Users\Admin\AppData\Local\Temp\565a958a285f4fffa354389c636ad400_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2456

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description aemgcqxo "wifi internet conection"
2⤵
- Launches sc.exe
PID:2744

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start aemgcqxo
2⤵
- Launches sc.exe
PID:2840

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:2748

C:\Windows\SysWOW64\aemgcqxo\bnuotzmu.exe
C:\Windows\SysWOW64\aemgcqxo\bnuotzmu.exe /d"C:\Users\Admin\AppData\Local\Temp\565a958a285f4fffa354389c636ad400_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2888

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2948

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

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\bnuotzmu.exe
Filesize
10.5MB

MD5
42c3e6dde2d64efb21443f58aad8dc7d

SHA1
564204ad34f5ae53a23e7c2a68d01df11ed1ed54

SHA256
4c73f731686e62ea9887b052c228babd0fffa2d9ceb278698b0489a4dd6d2b66

SHA512
690d5e748892aadb8597ac861ec2967c9e9da7e38668c8cdbca6f8a74bdebb99377b3c84a9e0ef9cc7abc2d2c673ebebb8590254f4868a64bafdfc46f515a2d8

Download Submit
memory/2064-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2064-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2064-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2064-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2064-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2064-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2888-15-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2948-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2948-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2948-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2948-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2948-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2948-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads