tofsee | bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370

General

Target

JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe
Size

285KB
MD5

e28cff69f519d0af754a3d940fc736b5
SHA1

4ac728fda3417f9c4a342630958e35ce2857258a
SHA256

bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370
SHA512

b0e267c138776d239524e0b3636a402333ff1c043974a89d9958a2664fc7b002dc4e0b49d346904ccc7bf47d77aab78ea19a5cde56be8b012ba061767300e83f
SSDEEP

3072:HpRniCVH4yVDjZYm1/A3Rxn9CCD39S20kehy/mpxK/DnNyBJrar0JmCF6Ev:JRiC3Dj51/ABxngIWpc/pAVZF6E

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
5052	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\srdzudkh\ImagePath = "C:\\Windows\\SysWOW64\\srdzudkh\\jqozeznb.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe

Deletes itself 1 IoCs

pid	Process
4184	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
8	jqozeznb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 8 set thread context of 4184	8	jqozeznb.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3780	sc.exe
2692	sc.exe
3772	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
1900	3932	WerFault.exe	82
2908	8	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	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jqozeznb.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 4028	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	83
PID 3932 wrote to memory of 4028	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	83
PID 3932 wrote to memory of 4028	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	83
PID 3932 wrote to memory of 1708	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	85
PID 3932 wrote to memory of 1708	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	85
PID 3932 wrote to memory of 1708	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	85
PID 3932 wrote to memory of 3780	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	87
PID 3932 wrote to memory of 3780	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	87
PID 3932 wrote to memory of 3780	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	87
PID 3932 wrote to memory of 2692	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	89
PID 3932 wrote to memory of 2692	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	89
PID 3932 wrote to memory of 2692	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	89
PID 3932 wrote to memory of 3772	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	92
PID 3932 wrote to memory of 3772	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	92
PID 3932 wrote to memory of 3772	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	92
PID 3932 wrote to memory of 5052	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	95
PID 3932 wrote to memory of 5052	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	95
PID 3932 wrote to memory of 5052	3932	JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe	95
PID 8 wrote to memory of 4184	8	jqozeznb.exe	101
PID 8 wrote to memory of 4184	8	jqozeznb.exe	101
PID 8 wrote to memory of 4184	8	jqozeznb.exe	101
PID 8 wrote to memory of 4184	8	jqozeznb.exe	101
PID 8 wrote to memory of 4184	8	jqozeznb.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\srdzudkh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jqozeznb.exe" C:\Windows\SysWOW64\srdzudkh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create srdzudkh binPath= "C:\Windows\SysWOW64\srdzudkh\jqozeznb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description srdzudkh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start srdzudkh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3772
- 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:5052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 660
  2⤵
  - Program crash
  PID:1900

C:\Windows\SysWOW64\srdzudkh\jqozeznb.exe
C:\Windows\SysWOW64\srdzudkh\jqozeznb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba51f1f5aa9359c09d545bd9a10c10454aa2fcaa4ba70497622d2677b86a370.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:8
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 532
  2⤵
  - Program crash
  PID:2908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3932 -ip 3932
1⤵
PID:1116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 8 -ip 8
1⤵
PID:4488

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\jqozeznb.exe

Filesize
14.2MB

MD5
c2b351bfe3f25f341fcf01d153fafc2a

SHA1
debbd77834103679c0df9e89c361a783ee0dcaa5

SHA256
0cb95b050f0593fb087c50dac8e8e15144ece3c8bdec3502e79c7935871f5607

SHA512
beead9c36a26621b41fe8fa185f08ef9ae977fd9d2edd852e4e2f134cea59c67bc30d88e351d86edfec1cafe0ff4a7791f8b68eb6a65acbf2f9d25252cf121ed

Download Submit
memory/8-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/3932-1-0x0000000002D10000-0x0000000002E10000-memory.dmp

Filesize
1024KB

Download
memory/3932-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3932-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3932-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3932-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3932-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/4184-11-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/4184-13-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/4184-14-0x0000000000F70000-0x0000000000F85000-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