tofsee | 46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec

General

Target

JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe
Size

355KB
MD5

0705d8a26643fda3847892650df6b7fe
SHA1

98513720a0866476912fda3ae473292fa02e1a38
SHA256

46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec
SHA512

1fc018bf6e9aa0eebe4164b4c18849fa65b6d97c5a93901c4d677f40a815454ecea2066c93fe7d9f3767e9947117baf4e7218a7f8dab640fd9929242142253aa
SSDEEP

6144:sXwE2Igd4E7jIujAab5azd2ne001GeyOoYDXVQCVyXFEL:sAEUMKAab5azd+e0MGeyOoyVnVyg

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
2020	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\wwrugxdr\ImagePath = "C:\\Windows\\SysWOW64\\wwrugxdr\\ovtejesg.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_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe

Deletes itself 1 IoCs

pid	Process
400	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4416	ovtejesg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4416 set thread context of 400	4416	ovtejesg.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2112	sc.exe
4440	sc.exe
3516	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2240	2128	WerFault.exe	82
2772	4416	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	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	ovtejesg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe
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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 1120	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	83
PID 2128 wrote to memory of 1120	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	83
PID 2128 wrote to memory of 1120	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	83
PID 2128 wrote to memory of 5080	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	85
PID 2128 wrote to memory of 5080	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	85
PID 2128 wrote to memory of 5080	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	85
PID 2128 wrote to memory of 4440	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	87
PID 2128 wrote to memory of 4440	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	87
PID 2128 wrote to memory of 4440	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	87
PID 2128 wrote to memory of 3516	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	89
PID 2128 wrote to memory of 3516	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	89
PID 2128 wrote to memory of 3516	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	89
PID 2128 wrote to memory of 2112	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	91
PID 2128 wrote to memory of 2112	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	91
PID 2128 wrote to memory of 2112	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	91
PID 2128 wrote to memory of 2020	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	94
PID 2128 wrote to memory of 2020	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	94
PID 2128 wrote to memory of 2020	2128	JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe	94
PID 4416 wrote to memory of 400	4416	ovtejesg.exe	100
PID 4416 wrote to memory of 400	4416	ovtejesg.exe	100
PID 4416 wrote to memory of 400	4416	ovtejesg.exe	100
PID 4416 wrote to memory of 400	4416	ovtejesg.exe	100
PID 4416 wrote to memory of 400	4416	ovtejesg.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wwrugxdr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ovtejesg.exe" C:\Windows\SysWOW64\wwrugxdr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wwrugxdr binPath= "C:\Windows\SysWOW64\wwrugxdr\ovtejesg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wwrugxdr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wwrugxdr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2112
- 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:2020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 1036
  2⤵
  - Program crash
  PID:2240

C:\Windows\SysWOW64\wwrugxdr\ovtejesg.exe
C:\Windows\SysWOW64\wwrugxdr\ovtejesg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46c88105604822a7742e2ba3e6bbe972348e37c559e9b1c7ed87cf8995db57ec.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4416 -s 520
  2⤵
  - Program crash
  PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2128 -ip 2128
1⤵
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4416 -ip 4416
1⤵
PID:1576

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\ovtejesg.exe

Filesize
11.0MB

MD5
8fafa270e915fdfaa4163e0879fb5a50

SHA1
fcd4d1853e4d814264a2fcdb20fffae4218c845e

SHA256
c60c0029d27a81d9523dcd3b64d42af190c83afc54ce0ae4a6f1e66412e66df1

SHA512
adcc6ed02934a919281423117079a71db0f24872bdc4eb4f5ced5167ba696e05d35ceb4b36f2e831f553866ff128195f0b816fe0fed0817449d9189c3fa0bff8

Download Submit
memory/400-13-0x0000000000390000-0x00000000003A5000-memory.dmp

Filesize
84KB

Download
memory/400-11-0x0000000000390000-0x00000000003A5000-memory.dmp

Filesize
84KB

Download
memory/400-15-0x0000000000390000-0x00000000003A5000-memory.dmp

Filesize
84KB

Download
memory/2128-1-0x0000000001900000-0x0000000001A00000-memory.dmp

Filesize
1024KB

Download
memory/2128-2-0x0000000001870000-0x0000000001883000-memory.dmp

Filesize
76KB

Download
memory/2128-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-9-0x0000000001870000-0x0000000001883000-memory.dmp

Filesize
76KB

Download
memory/2128-8-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/4416-14-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/4416-17-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads