tofsee | 9ba265e583e2305ddfa169aee1b7d2e8dda3c444c563e4c57bb824872c3f8063

General

Target

2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe
Size

14.3MB
MD5

2dbbbb6fb0dc0f225463a7423b11c464
SHA1

d07a60e5b2c4395af53bb49706a68f671bbfb7db
SHA256

9ba265e583e2305ddfa169aee1b7d2e8dda3c444c563e4c57bb824872c3f8063
SHA512

ca8ec58419213e42c91768e3b40b4fb02e1d76c4048f18d3104454e91600f072e534d1b0f0a33e01eb2c4658bf4a520e1507835ea1f28a08933291664d3eeba9
SSDEEP

24576:cJQyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy3:c

Score

10^/10

tofsee discovery 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

4236 netsh.exe

pid	process
4236	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\ffwmzpiz\ImagePath = "C:\\Windows\\SysWOW64\\ffwmzpiz\\xrakxafr.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:

2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3600 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

xrakxafr.exe

pid process

1456 xrakxafr.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

xrakxafr.exe

description pid process target process

PID 1456 set thread context of 3600 1456 xrakxafr.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

2928 sc.exe
4836 sc.exe
4568 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3600	svchost.exe

pid	process
1456	xrakxafr.exe

description	pid	process	target process
PID 1456 set thread context of 3600	1456	xrakxafr.exe	svchost.exe

pid	process
2928	sc.exe
4836	sc.exe
4568	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

3160 1524 WerFault.exe 2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe
692 1456 WerFault.exe xrakxafr.exe

pid	pid_target	process	target process
3160	1524	WerFault.exe	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe
692	1456	WerFault.exe	xrakxafr.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

cmd.exesc.exesc.exexrakxafr.exe2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.execmd.exesc.exenetsh.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xrakxafr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exexrakxafr.exe

description	pid	process	target process
PID 1524 wrote to memory of 4388	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	cmd.exe
PID 1524 wrote to memory of 4388	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	cmd.exe
PID 1524 wrote to memory of 4388	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	cmd.exe
PID 1524 wrote to memory of 2244	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	cmd.exe
PID 1524 wrote to memory of 2244	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	cmd.exe
PID 1524 wrote to memory of 2244	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	cmd.exe
PID 1524 wrote to memory of 2928	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 2928	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 2928	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 4836	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 4836	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 4836	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 4568	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 4568	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 4568	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	sc.exe
PID 1524 wrote to memory of 4236	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	netsh.exe
PID 1524 wrote to memory of 4236	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	netsh.exe
PID 1524 wrote to memory of 4236	1524	2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe	netsh.exe
PID 1456 wrote to memory of 3600	1456	xrakxafr.exe	svchost.exe
PID 1456 wrote to memory of 3600	1456	xrakxafr.exe	svchost.exe
PID 1456 wrote to memory of 3600	1456	xrakxafr.exe	svchost.exe
PID 1456 wrote to memory of 3600	1456	xrakxafr.exe	svchost.exe
PID 1456 wrote to memory of 3600	1456	xrakxafr.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ffwmzpiz\
2⤵
- System Location Discovery: System Language Discovery
PID:4388

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xrakxafr.exe" C:\Windows\SysWOW64\ffwmzpiz\
2⤵
- System Location Discovery: System Language Discovery
PID:2244

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ffwmzpiz binPath= "C:\Windows\SysWOW64\ffwmzpiz\xrakxafr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2928

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ffwmzpiz "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4836

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ffwmzpiz
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4568

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
- System Location Discovery: System Language Discovery
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 1032
2⤵
- Program crash
PID:3160

C:\Windows\SysWOW64\ffwmzpiz\xrakxafr.exe
C:\Windows\SysWOW64\ffwmzpiz\xrakxafr.exe /d"C:\Users\Admin\AppData\Local\Temp\2dbbbb6fb0dc0f225463a7423b11c464_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 512
2⤵
- Program crash
PID:692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1524 -ip 1524
1⤵
PID:4048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1456 -ip 1456
1⤵
PID:4880

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.7MB

MD5
83f480a23695b40e31c725987e0fc373

SHA1
33d5fcb795b2643b5138dcca0eb39f02b2286d6a

SHA256
79c975b9990f5d204f27f2ef632188cb321e947fdd557d31075ea647cceeeb4f

SHA512
9934cc087965e90ec5cfd0b74625225b7d4e14ac98f602fb643ce7d681f530ef6b56bf753cb0b576afdc4a478b742735e45d6571b1a86fd980ad2cee51db8196

Download Submit
memory/1456-13-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1456-11-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1456-12-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1456-18-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1524-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1524-2-0x0000000000640000-0x0000000000653000-memory.dmp

Filesize
76KB

Download
memory/1524-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1524-9-0x0000000000640000-0x0000000000653000-memory.dmp

Filesize
76KB

Download
memory/1524-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1524-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/3600-14-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/3600-16-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/3600-17-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads