tofsee | a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf

General

Target

JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe
Size

234KB
MD5

2379565f7037e1f0c790f1fbd5382e4d
SHA1

3e74b492092848defe3efce4aaade6060c6e65bf
SHA256

a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf
SHA512

07919ec516c8ca931f4d5c574bce930146d871f643815f56bdae4ec75109ce49a4f9bc7ccfd98ba761eee21ac1747d578cc3da44e4eab62801be435a09b517c0
SSDEEP

3072:o17AsVmUoKJ7lQHbmyVvVGE4dG+0VXN7yADUsHwNoQ4Lps4DE+u/4:o175UgJ7lQHbLvz4dGgoHHuA

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
4176	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\gzgbfbwv\ImagePath = "C:\\Windows\\SysWOW64\\gzgbfbwv\\nsogeht.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_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe

Deletes itself 1 IoCs

pid	Process
4072	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1632	nsogeht.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 4072	1632	nsogeht.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1968	sc.exe
944	sc.exe
3148	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
2852	4780	WerFault.exe	82
3972	1632	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	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	nsogeht.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.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 4780 wrote to memory of 4820	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	83
PID 4780 wrote to memory of 4820	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	83
PID 4780 wrote to memory of 4820	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	83
PID 4780 wrote to memory of 2836	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	85
PID 4780 wrote to memory of 2836	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	85
PID 4780 wrote to memory of 2836	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	85
PID 4780 wrote to memory of 3148	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	87
PID 4780 wrote to memory of 3148	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	87
PID 4780 wrote to memory of 3148	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	87
PID 4780 wrote to memory of 1968	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	89
PID 4780 wrote to memory of 1968	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	89
PID 4780 wrote to memory of 1968	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	89
PID 4780 wrote to memory of 944	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	92
PID 4780 wrote to memory of 944	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	92
PID 4780 wrote to memory of 944	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	92
PID 4780 wrote to memory of 4176	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	95
PID 4780 wrote to memory of 4176	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	95
PID 4780 wrote to memory of 4176	4780	JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe	95
PID 1632 wrote to memory of 4072	1632	nsogeht.exe	101
PID 1632 wrote to memory of 4072	1632	nsogeht.exe	101
PID 1632 wrote to memory of 4072	1632	nsogeht.exe	101
PID 1632 wrote to memory of 4072	1632	nsogeht.exe	101
PID 1632 wrote to memory of 4072	1632	nsogeht.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gzgbfbwv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nsogeht.exe" C:\Windows\SysWOW64\gzgbfbwv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gzgbfbwv binPath= "C:\Windows\SysWOW64\gzgbfbwv\nsogeht.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gzgbfbwv "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 gzgbfbwv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:944
- 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:4176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 672
  2⤵
  - Program crash
  PID:2852

C:\Windows\SysWOW64\gzgbfbwv\nsogeht.exe
C:\Windows\SysWOW64\gzgbfbwv\nsogeht.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a7314503a7c92c26027da10f7a4eb283e0475eab5987974e2a116c7347b69cbf.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 512
  2⤵
  - Program crash
  PID:3972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4780 -ip 4780
1⤵
PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1632 -ip 1632
1⤵
PID:2860

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\nsogeht.exe

Filesize
13.7MB

MD5
283fa43772aa098785bfb734bbb22be0

SHA1
9b3e1d70091befdb485e96be51af0f0ef298abe3

SHA256
70bfa012ce383054712d54c307ad5a91ecc487b2c76789ec50aed029a38b2d88

SHA512
5d15899ec74e11ae0a041bde86c82ae5d40dd51383604a6bff86f867346ed23b5f56fe6e1ab5300a3d867dce29b45dcb3dbc48d8f53718b98e83908413cf94e6

Download Submit
memory/1632-11-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/1632-18-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/1632-12-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/4072-13-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/4072-15-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/4072-16-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/4780-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/4780-9-0x0000000000A10000-0x0000000000A23000-memory.dmp

Filesize
76KB

Download
memory/4780-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4780-1-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

Filesize
1024KB

Download
memory/4780-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4780-2-0x0000000000A10000-0x0000000000A23000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads