tofsee | 0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95

General

Target

JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe
Size

319KB
MD5

3fec5b2cd8ad9cf5e402e5917d0a2d28
SHA1

e7bb71e2a451c80dea5d8817ce2baf57d431d967
SHA256

0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95
SHA512

6983581c36a46842292a90ab6499beb484d6c0933ca0f87f68bc3859a2f47b6210bbbf69365eafbf2cc74430fa656957aeb977838b5461a2376c53df7f564cb9
SSDEEP

6144:DMh8SvMvFv8Ibbn71octhHlOZU5PtV7WexP2:wh8SvMRbLpocthHlF5Pj7z2

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
5108	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\uxxcdugi\ImagePath = "C:\\Windows\\SysWOW64\\uxxcdugi\\kljtwpuf.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_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe

Deletes itself 1 IoCs

pid	Process
3460	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4568	kljtwpuf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4568 set thread context of 3460	4568	kljtwpuf.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1968	sc.exe
2380	sc.exe
3344	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1508	4052	WerFault.exe	82
208	4568	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kljtwpuf.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 776	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	83
PID 4052 wrote to memory of 776	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	83
PID 4052 wrote to memory of 776	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	83
PID 4052 wrote to memory of 3616	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	85
PID 4052 wrote to memory of 3616	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	85
PID 4052 wrote to memory of 3616	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	85
PID 4052 wrote to memory of 3344	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	87
PID 4052 wrote to memory of 3344	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	87
PID 4052 wrote to memory of 3344	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	87
PID 4052 wrote to memory of 1968	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	89
PID 4052 wrote to memory of 1968	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	89
PID 4052 wrote to memory of 1968	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	89
PID 4052 wrote to memory of 2380	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	91
PID 4052 wrote to memory of 2380	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	91
PID 4052 wrote to memory of 2380	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	91
PID 4052 wrote to memory of 5108	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	94
PID 4052 wrote to memory of 5108	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	94
PID 4052 wrote to memory of 5108	4052	JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe	94
PID 4568 wrote to memory of 3460	4568	kljtwpuf.exe	100
PID 4568 wrote to memory of 3460	4568	kljtwpuf.exe	100
PID 4568 wrote to memory of 3460	4568	kljtwpuf.exe	100
PID 4568 wrote to memory of 3460	4568	kljtwpuf.exe	100
PID 4568 wrote to memory of 3460	4568	kljtwpuf.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uxxcdugi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kljtwpuf.exe" C:\Windows\SysWOW64\uxxcdugi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uxxcdugi binPath= "C:\Windows\SysWOW64\uxxcdugi\kljtwpuf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uxxcdugi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uxxcdugi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2380
- 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:5108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1036
  2⤵
  - Program crash
  PID:1508

C:\Windows\SysWOW64\uxxcdugi\kljtwpuf.exe
C:\Windows\SysWOW64\uxxcdugi\kljtwpuf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0ad8dc80eef06a5cedcbcec0871e8aa976fd870b814fc80c1534c6e9fd378b95.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3460
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4568 -s 516
  2⤵
  - Program crash
  PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4052 -ip 4052
1⤵
PID:4436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4568 -ip 4568
1⤵
PID:1436

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\kljtwpuf.exe

Filesize
12.0MB

MD5
f4fc861185d2d774b6a43a136fe871cc

SHA1
f36870373d82af806c62c7ede1f617cece68c6a4

SHA256
be094aaae4b870a34ca2e7c4dbb7fd9e5a6f1844f95cf1be8466af0a7dd060cb

SHA512
53d581176c7a31c5bd7f2320810aa15f82605ed2e77b620db4e0309126e044318d392e164d92798400f734199fb7ef5791a27c990eb38c710d2ee1fe2ecb0aec

Download Submit
memory/3460-11-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/3460-13-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/3460-14-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/4052-1-0x0000000002BD0000-0x0000000002CD0000-memory.dmp

Filesize
1024KB

Download
memory/4052-2-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/4052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4052-8-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/4052-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4052-7-0x0000000000400000-0x0000000002B48000-memory.dmp

Filesize
39.3MB

Download
memory/4568-15-0x0000000000400000-0x0000000002B48000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads