tofsee | 14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5

General

Target

JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe
Size

289KB
MD5

dc63e7f378971c17563a3e8d31f96796
SHA1

eaa44f139916dc418d7b80eb87d1352a45cac953
SHA256

14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5
SHA512

0b1919c8f286011c23501b5d0f72934822931fa77602152b5a4b6825362ae3988ad82b6911f288639fe7f139febf894e1adde964d24494298ae3e7f474883b36
SSDEEP

6144:2Ep3TtJj54f9/KcWqJL606yROOhxxdeTr/ekI:Z14f9FL6kzxd6L

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
Tofsee family
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

pid	Process
4968	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\xhrgvvbt\ImagePath = "C:\\Windows\\SysWOW64\\xhrgvvbt\\szxiniwk.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe

Deletes itself 1 IoCs

pid	Process
2292	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1424	szxiniwk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1424 set thread context of 2292	1424	szxiniwk.exe	101

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2800	sc.exe
3160	sc.exe
972	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

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

pid	pid_target	Process	procid_target
344	2272	WerFault.exe	82
2580	1424	WerFault.exe	94

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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.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	szxiniwk.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 3344	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	83
PID 2272 wrote to memory of 3344	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	83
PID 2272 wrote to memory of 3344	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	83
PID 2272 wrote to memory of 3412	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	85
PID 2272 wrote to memory of 3412	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	85
PID 2272 wrote to memory of 3412	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	85
PID 2272 wrote to memory of 2800	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	88
PID 2272 wrote to memory of 2800	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	88
PID 2272 wrote to memory of 2800	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	88
PID 2272 wrote to memory of 3160	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	90
PID 2272 wrote to memory of 3160	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	90
PID 2272 wrote to memory of 3160	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	90
PID 2272 wrote to memory of 972	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	92
PID 2272 wrote to memory of 972	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	92
PID 2272 wrote to memory of 972	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	92
PID 2272 wrote to memory of 4968	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	95
PID 2272 wrote to memory of 4968	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	95
PID 2272 wrote to memory of 4968	2272	JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe	95
PID 1424 wrote to memory of 2292	1424	szxiniwk.exe	101
PID 1424 wrote to memory of 2292	1424	szxiniwk.exe	101
PID 1424 wrote to memory of 2292	1424	szxiniwk.exe	101
PID 1424 wrote to memory of 2292	1424	szxiniwk.exe	101
PID 1424 wrote to memory of 2292	1424	szxiniwk.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xhrgvvbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\szxiniwk.exe" C:\Windows\SysWOW64\xhrgvvbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xhrgvvbt binPath= "C:\Windows\SysWOW64\xhrgvvbt\szxiniwk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xhrgvvbt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xhrgvvbt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:972
- 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:4968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 1112
  2⤵
  - Program crash
  PID:344

C:\Windows\SysWOW64\xhrgvvbt\szxiniwk.exe
C:\Windows\SysWOW64\xhrgvvbt\szxiniwk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14f8fa28672ea9855850971b617fe07bc1a14951383cc007597da1bf39f729e5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 512
  2⤵
  - Program crash
  PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2272 -ip 2272
1⤵
PID:3280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1424 -ip 1424
1⤵
PID:3724

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
10.6MB

MD5
f4ca9928d375513d93a3874a325d847e

SHA1
50091cd957bb4e4b1416a789ba90ec0eb3bea48d

SHA256
b51a013bd8e3ee8f1fe4d716406407f8e24421064fd4f3a2e7f5d16442873c03

SHA512
f13563ef4afe21d6bd45ac44af0c5f6404c428b7dd48de0398e49d214df5467304845a84e640c7bfd5c72922394dab436a636c4d40f5c40d70a1cd8def1c3832

Download Submit
memory/1424-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1424-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1424-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1424-18-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2272-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2272-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2272-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2272-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/2292-14-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download
memory/2292-16-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download
memory/2292-17-0x00000000007E0000-0x00000000007F5000-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