tofsee | cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827

General

Target

JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe
Size

165KB
MD5

5bfc66916649ba29afc08d2d65bfea85
SHA1

afebdb26e4ea69ef8764732614c37e290265d6ec
SHA256

cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827
SHA512

b7fc3afff4aec0aed51ade3d204b674d7b4c014e75959ee7f15624c0a96b2bee0317424fd246779f7fa9f2523dd7c8e467509b138a83f83b46c2a55c0271e40d
SSDEEP

3072:oHecR8524ftXuGBT+7q+scZI6tJ4ZE8AqkhaP/bL1x2:9cR024lXu8afsV6teuWkYXbLS

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
3328	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\lukbwrub\ImagePath = "C:\\Windows\\SysWOW64\\lukbwrub\\mbcivgaz.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	mbcivgaz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 2976	2792	mbcivgaz.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
4984	sc.exe
5096	sc.exe
3204	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 1 IoCs

pid	pid_target	Process	procid_target
2260	2792	WerFault.exe	92

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	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.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	mbcivgaz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 2924	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	82
PID 1260 wrote to memory of 2924	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	82
PID 1260 wrote to memory of 2924	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	82
PID 1260 wrote to memory of 4628	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	84
PID 1260 wrote to memory of 4628	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	84
PID 1260 wrote to memory of 4628	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	84
PID 1260 wrote to memory of 4984	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	86
PID 1260 wrote to memory of 4984	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	86
PID 1260 wrote to memory of 4984	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	86
PID 1260 wrote to memory of 5096	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	88
PID 1260 wrote to memory of 5096	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	88
PID 1260 wrote to memory of 5096	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	88
PID 1260 wrote to memory of 3204	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	90
PID 1260 wrote to memory of 3204	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	90
PID 1260 wrote to memory of 3204	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	90
PID 1260 wrote to memory of 3328	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	93
PID 1260 wrote to memory of 3328	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	93
PID 1260 wrote to memory of 3328	1260	JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe	93
PID 2792 wrote to memory of 2976	2792	mbcivgaz.exe	95
PID 2792 wrote to memory of 2976	2792	mbcivgaz.exe	95
PID 2792 wrote to memory of 2976	2792	mbcivgaz.exe	95
PID 2792 wrote to memory of 2976	2792	mbcivgaz.exe	95
PID 2792 wrote to memory of 2976	2792	mbcivgaz.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lukbwrub\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mbcivgaz.exe" C:\Windows\SysWOW64\lukbwrub\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lukbwrub binPath= "C:\Windows\SysWOW64\lukbwrub\mbcivgaz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lukbwrub "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lukbwrub
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3204
- 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:3328

C:\Windows\SysWOW64\lukbwrub\mbcivgaz.exe
C:\Windows\SysWOW64\lukbwrub\mbcivgaz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbdef5d10579ffa112cbfdaed47f0dea60e474847ec2c4925fb40f1cefa50827.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 532
  2⤵
  - Program crash
  PID:2260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2792 -ip 2792
1⤵
PID:2784

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\mbcivgaz.exe

Filesize
10.1MB

MD5
32ede5dd7ce5a41dc9390b9b057b244a

SHA1
5b8dd27c626fcf27b4f26a084341cff652c749a8

SHA256
774e43ebef409c59625a5275d31d6bc354b071c57afc7efbb1e7f0ef834532fc

SHA512
391a6b617469a8537e71394ebb295d2bbc153f0f43d7967715ca98df90f71ec7fbb9d4e3117bdbc179ff0747b2e66d216f66e112da7b79b1433a64faab5f1ed7

Download Submit
memory/1260-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1260-11-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1260-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1260-17-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1260-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1260-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/1260-10-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/2792-8-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2792-7-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2792-16-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2792-6-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2976-13-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/2976-18-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/2976-19-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads