tofsee | 67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323

General

Target

JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe
Size

164KB
MD5

c5ced48e65de6d707160b2e71df898f2
SHA1

0c4101e6c378d70d6e145516ff46b443aff92ea4
SHA256

67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323
SHA512

57c5a7483fc31362d691af236d3f371668aa6b3031a8e4108ebf5d8f3992bec7a00b6755e6471f9568b368aa88b1154874aaa0d50fc3c38fb74a25f2240ceacf
SSDEEP

1536:BsnEEYSamXQT/PLvQtTZp9wO7BM1NvUGgwyIBtP6fm3dLi5wIbVm78d6ccJ+Rook:BhqQQBZZygw7BtfNLi57XWJS9H6Y

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
1980	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\aihbjkts\ImagePath = "C:\\Windows\\SysWOW64\\aihbjkts\\widahggu.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe

Deletes itself 1 IoCs

pid	Process
2732	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1136	widahggu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1136 set thread context of 2732	1136	widahggu.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3604	sc.exe
4512	sc.exe
1092	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
2908	1044	WerFault.exe	80
2728	1136	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	widahggu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.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	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 1044 wrote to memory of 3496	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	82
PID 1044 wrote to memory of 3496	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	82
PID 1044 wrote to memory of 3496	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	82
PID 1044 wrote to memory of 4612	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	84
PID 1044 wrote to memory of 4612	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	84
PID 1044 wrote to memory of 4612	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	84
PID 1044 wrote to memory of 3604	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	86
PID 1044 wrote to memory of 3604	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	86
PID 1044 wrote to memory of 3604	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	86
PID 1044 wrote to memory of 4512	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	88
PID 1044 wrote to memory of 4512	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	88
PID 1044 wrote to memory of 4512	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	88
PID 1044 wrote to memory of 1092	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	90
PID 1044 wrote to memory of 1092	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	90
PID 1044 wrote to memory of 1092	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	90
PID 1044 wrote to memory of 1980	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	93
PID 1044 wrote to memory of 1980	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	93
PID 1044 wrote to memory of 1980	1044	JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe	93
PID 1136 wrote to memory of 2732	1136	widahggu.exe	98
PID 1136 wrote to memory of 2732	1136	widahggu.exe	98
PID 1136 wrote to memory of 2732	1136	widahggu.exe	98
PID 1136 wrote to memory of 2732	1136	widahggu.exe	98
PID 1136 wrote to memory of 2732	1136	widahggu.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aihbjkts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3496
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\widahggu.exe" C:\Windows\SysWOW64\aihbjkts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aihbjkts binPath= "C:\Windows\SysWOW64\aihbjkts\widahggu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aihbjkts "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aihbjkts
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1092
- 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:1980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1044 -s 1036
  2⤵
  - Program crash
  PID:2908

C:\Windows\SysWOW64\aihbjkts\widahggu.exe
C:\Windows\SysWOW64\aihbjkts\widahggu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67276ea315c4611e56a18ea101a6b27469386a7592364fdfa9289e13b967a323.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 512
  2⤵
  - Program crash
  PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1044 -ip 1044
1⤵
PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1136 -ip 1136
1⤵
PID:1156

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\widahggu.exe

Filesize
13.6MB

MD5
83f9e227389d66f3795fc48be235389d

SHA1
190bc1538575e6a7adb675357b6e4ef3939668ce

SHA256
c7e7c118348c5af3fb82e29215bf05245a08bbd635cfe038be44cd9d2218edb7

SHA512
4c84cc42eebca299f39f26758e20893966c1f15782d91c0430d5ec1a73d1830a3440b76203938f72799068a0884bac85b55433edf5133fe3a81ec6d39df8d982

Download Submit
memory/1044-8-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/1044-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1044-2-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/1044-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1044-9-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/1044-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/1136-11-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/1136-12-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/1136-13-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/1136-19-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2732-16-0x0000000001290000-0x00000000012A5000-memory.dmp

Filesize
84KB

Download
memory/2732-14-0x0000000001290000-0x00000000012A5000-memory.dmp

Filesize
84KB

Download
memory/2732-17-0x0000000001290000-0x00000000012A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads