tofsee | 37ed93bc02236b725a6b5fbdf69f93d6ac108eb9df7c2e56646cd6983010aba4

General

Target

JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe
Size

13.7MB
MD5

325ada9fdaea31bac908bc3a142ac4a9
SHA1

c1a64581187c976c14612ad53601303f4b21cdbf
SHA256

37ed93bc02236b725a6b5fbdf69f93d6ac108eb9df7c2e56646cd6983010aba4
SHA512

c94f335bcf1533469037b0d0864d79df635c8980106b1862c267c247686ad5a62ce1a775d33d9b430fd3d1100acc9663e71ed55afcd8eae6cb05ae57826d3b69
SSDEEP

12288:lQeoegEG/Rl1M7jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjn:lQeGX1M

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
3256	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\vrplxtpi\ImagePath = "C:\\Windows\\SysWOW64\\vrplxtpi\\eqlipooc.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe

Deletes itself 1 IoCs

pid	Process
1436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	eqlipooc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 1436	2640	eqlipooc.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3280	sc.exe
944	sc.exe
1360	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
2344	1356	WerFault.exe	82
1432	2640	WerFault.exe	93

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	eqlipooc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 4360	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	83
PID 1356 wrote to memory of 4360	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	83
PID 1356 wrote to memory of 4360	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	83
PID 1356 wrote to memory of 2356	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	85
PID 1356 wrote to memory of 2356	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	85
PID 1356 wrote to memory of 2356	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	85
PID 1356 wrote to memory of 944	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	87
PID 1356 wrote to memory of 944	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	87
PID 1356 wrote to memory of 944	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	87
PID 1356 wrote to memory of 1360	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	89
PID 1356 wrote to memory of 1360	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	89
PID 1356 wrote to memory of 1360	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	89
PID 1356 wrote to memory of 3280	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	91
PID 1356 wrote to memory of 3280	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	91
PID 1356 wrote to memory of 3280	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	91
PID 1356 wrote to memory of 3256	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	94
PID 1356 wrote to memory of 3256	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	94
PID 1356 wrote to memory of 3256	1356	JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe	94
PID 2640 wrote to memory of 1436	2640	eqlipooc.exe	100
PID 2640 wrote to memory of 1436	2640	eqlipooc.exe	100
PID 2640 wrote to memory of 1436	2640	eqlipooc.exe	100
PID 2640 wrote to memory of 1436	2640	eqlipooc.exe	100
PID 2640 wrote to memory of 1436	2640	eqlipooc.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vrplxtpi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eqlipooc.exe" C:\Windows\SysWOW64\vrplxtpi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vrplxtpi binPath= "C:\Windows\SysWOW64\vrplxtpi\eqlipooc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vrplxtpi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1360
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vrplxtpi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3280
- 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:3256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1036
  2⤵
  - Program crash
  PID:2344

C:\Windows\SysWOW64\vrplxtpi\eqlipooc.exe
C:\Windows\SysWOW64\vrplxtpi\eqlipooc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_325ada9fdaea31bac908bc3a142ac4a9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 512
  2⤵
  - Program crash
  PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1356 -ip 1356
1⤵
PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2640 -ip 2640
1⤵
PID:4204

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\eqlipooc.exe

Filesize
11.9MB

MD5
84af2416e385a8bb9bc3748d69386705

SHA1
44cea5c6bc93862068738f6b9f383913ea5baf3d

SHA256
0ece6ac6a789e27df31f2c075d72f5f3d499425738bd61136c9d12ad39022c9e

SHA512
0d70b11ff538ed768f62dba1f2791297ca55e538828d93b5a65ba94219caf6d3349317b58613570cb13f112bad694eac75662294681b85388ca533abbd1f784d

Download Submit
memory/1356-2-0x00000000009B0000-0x00000000009C3000-memory.dmp

Filesize
76KB

Download
memory/1356-1-0x0000000000A90000-0x0000000000B90000-memory.dmp

Filesize
1024KB

Download
memory/1356-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1356-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1356-9-0x00000000009B0000-0x00000000009C3000-memory.dmp

Filesize
76KB

Download
memory/1356-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/1436-11-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/1436-15-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/1436-16-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/2640-13-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2640-12-0x0000000000400000-0x000000000086A000-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