tofsee | 5bb6d4452191977be56ad5145aea155685b5e6ea4a019c9ab98e781f4d09dca3

General

Target

JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe
Size

12.6MB
MD5

7f90ff9d2dba4edc26a7410a0b557a41
SHA1

b50854f8852d7d6ccdd8a1cb86ab392d7704f716
SHA256

5bb6d4452191977be56ad5145aea155685b5e6ea4a019c9ab98e781f4d09dca3
SHA512

a1bad2c021a3846d5d191514edbb0dc563d9dd2ce26b095f9e3a7aabe5e566a132eaebefc1cb37587cdcb5c40f87d58e5b9565cd448f2f2109177d1e9dbee6f0
SSDEEP

49152:6/m3UeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeD:6

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
264	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\kfporfkz\ImagePath = "C:\\Windows\\SysWOW64\\kfporfkz\\kdykodo.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe

Deletes itself 1 IoCs

pid	Process
324	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
216	kdykodo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 216 set thread context of 324	216	kdykodo.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2264	sc.exe
3328	sc.exe
5056	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
4104	2484	WerFault.exe	82
1888	216	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.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	kdykodo.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 3568	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	83
PID 2484 wrote to memory of 3568	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	83
PID 2484 wrote to memory of 3568	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	83
PID 2484 wrote to memory of 1600	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	85
PID 2484 wrote to memory of 1600	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	85
PID 2484 wrote to memory of 1600	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	85
PID 2484 wrote to memory of 5056	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	88
PID 2484 wrote to memory of 5056	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	88
PID 2484 wrote to memory of 5056	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	88
PID 2484 wrote to memory of 2264	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	90
PID 2484 wrote to memory of 2264	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	90
PID 2484 wrote to memory of 2264	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	90
PID 2484 wrote to memory of 3328	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	92
PID 2484 wrote to memory of 3328	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	92
PID 2484 wrote to memory of 3328	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	92
PID 2484 wrote to memory of 264	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	95
PID 2484 wrote to memory of 264	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	95
PID 2484 wrote to memory of 264	2484	JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe	95
PID 216 wrote to memory of 324	216	kdykodo.exe	101
PID 216 wrote to memory of 324	216	kdykodo.exe	101
PID 216 wrote to memory of 324	216	kdykodo.exe	101
PID 216 wrote to memory of 324	216	kdykodo.exe	101
PID 216 wrote to memory of 324	216	kdykodo.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kfporfkz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kdykodo.exe" C:\Windows\SysWOW64\kfporfkz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kfporfkz binPath= "C:\Windows\SysWOW64\kfporfkz\kdykodo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kfporfkz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kfporfkz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3328
- 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:264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 672
  2⤵
  - Program crash
  PID:4104

C:\Windows\SysWOW64\kfporfkz\kdykodo.exe
C:\Windows\SysWOW64\kfporfkz\kdykodo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f90ff9d2dba4edc26a7410a0b557a41.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:216
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 512
  2⤵
  - Program crash
  PID:1888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2484 -ip 2484
1⤵
PID:1336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 216 -ip 216
1⤵
PID:3892

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\kdykodo.exe

Filesize
12.9MB

MD5
6a0302807e18c125e7658391058928ec

SHA1
ea54d507e96ab3a326ac7fd1c56e793b46341fa9

SHA256
dbfd3ddf1a3fd4f0bcf9e7b7010e5f74bee347c63c92d23df9e8b118d9f38125

SHA512
2c84498d78feea7765cbe782dc09573e7b2c510571ada9c1ba718e33122335ec2f97e3d05385d59c93604cfcd3c7bf59f2d3a28f9868808fd950df470f62a18b

Download Submit
memory/216-14-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/216-15-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/324-11-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/324-13-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/324-16-0x0000000000570000-0x0000000000585000-memory.dmp

Filesize
84KB

Download
memory/2484-2-0x0000000001820000-0x0000000001833000-memory.dmp

Filesize
76KB

Download
memory/2484-1-0x0000000001840000-0x0000000001940000-memory.dmp

Filesize
1024KB

Download
memory/2484-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-9-0x0000000001820000-0x0000000001833000-memory.dmp

Filesize
76KB

Download
memory/2484-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads