tofsee | c7b71ddfb4b1d6b5f25866b12c5c2ea486242cad1b094b36f465a2313b85daea

General

Target

0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe
Size

11.7MB
MD5

0a997b7a64cc868fdf8f462d7d64b39c
SHA1

d3fa7d86bbc79eddc267c9609a1a396944033fcf
SHA256

c7b71ddfb4b1d6b5f25866b12c5c2ea486242cad1b094b36f465a2313b85daea
SHA512

cc4ecc5ee660f131bd9a9326297c9efd69772482aed6373e408d6b4620523a451b9cf83164e945d940cf3ebd43a96c44d19eb40a121405ef568a95084c12bb2d
SSDEEP

196608:7tPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPX:7

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

2472 netsh.exe

pid	process
2472	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\nshluzzm\ImagePath = "C:\\Windows\\SysWOW64\\nshluzzm\\biuhqdey.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3056 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

biuhqdey.exe

pid process

4924 biuhqdey.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

biuhqdey.exe

description pid process target process

PID 4924 set thread context of 3056 4924 biuhqdey.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

2160 sc.exe
2080 sc.exe
1044 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3056	svchost.exe

pid	process
4924	biuhqdey.exe

description	pid	process	target process
PID 4924 set thread context of 3056	4924	biuhqdey.exe	svchost.exe

pid	process
2160	sc.exe
2080	sc.exe
1044	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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

5020 4180 WerFault.exe 0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe
1532 4924 WerFault.exe biuhqdey.exe

pid	pid_target	process	target process
5020	4180	WerFault.exe	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe
1532	4924	WerFault.exe	biuhqdey.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exebiuhqdey.exe

description	pid	process	target process
PID 4180 wrote to memory of 1488	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 1488	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 1488	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 4704	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 4704	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 4704	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	cmd.exe
PID 4180 wrote to memory of 2160	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 2160	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 2160	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 2080	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 2080	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 2080	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 1044	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 1044	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 1044	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	sc.exe
PID 4180 wrote to memory of 2472	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	netsh.exe
PID 4180 wrote to memory of 2472	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	netsh.exe
PID 4180 wrote to memory of 2472	4180	0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe	netsh.exe
PID 4924 wrote to memory of 3056	4924	biuhqdey.exe	svchost.exe
PID 4924 wrote to memory of 3056	4924	biuhqdey.exe	svchost.exe
PID 4924 wrote to memory of 3056	4924	biuhqdey.exe	svchost.exe
PID 4924 wrote to memory of 3056	4924	biuhqdey.exe	svchost.exe
PID 4924 wrote to memory of 3056	4924	biuhqdey.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4180

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nshluzzm\
2⤵
PID:1488

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\biuhqdey.exe" C:\Windows\SysWOW64\nshluzzm\
2⤵
PID:4704

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create nshluzzm binPath= "C:\Windows\SysWOW64\nshluzzm\biuhqdey.exe /d\"C:\Users\Admin\AppData\Local\Temp\0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2160

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description nshluzzm "wifi internet conection"
2⤵
- Launches sc.exe
PID:2080

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start nshluzzm
2⤵
- Launches sc.exe
PID:1044

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:2472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 1036
2⤵
- Program crash
PID:5020

C:\Windows\SysWOW64\nshluzzm\biuhqdey.exe
C:\Windows\SysWOW64\nshluzzm\biuhqdey.exe /d"C:\Users\Admin\AppData\Local\Temp\0a997b7a64cc868fdf8f462d7d64b39c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4924

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 512
2⤵
- Program crash
PID:1532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4180 -ip 4180
1⤵
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4924 -ip 4924
1⤵
PID:4688

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\biuhqdey.exe
Filesize
10.6MB

MD5
0acc0b6b7ada1ba02b8d32ae4e149ec8

SHA1
4d6c3e39ba70f66903d25a78e60066f833e412dc

SHA256
c7688f16d3ed72cdf38b34acc1cfba5fe5df5be5b6133ec3270e21592f7751ce

SHA512
39ffba80f5ca36edcacb0c8f1c5009f10d0a18a41c58891dc55709eef0a93d3ad297be4d3e307a46e86608da94799fb048b5a7b258460c0e77bb090f26649266

Download Submit
memory/3056-14-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/3056-12-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/3056-16-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/4180-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4180-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4180-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4180-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4180-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/4180-1-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/4924-11-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/4924-15-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/4924-18-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads