tofsee | 8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9

General

Target

JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe
Size

228KB
MD5

0a17fcdde1f0e57409464572f985e475
SHA1

2db334310c654e9718285a77b2eefb8d322cf57b
SHA256

8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9
SHA512

7781c450c1070fdb8084bf816a7f6f17e9ee117ae6c3d677509f6e4a7ea32c3578053f165b35b7c01900278279d8551a4a3ca4559c389036cefc3fa968c2b59d
SSDEEP

3072:PFSW5Ha6XLb/ts7j6yVehikJwu9nO0SXL7yl17EgTMfulAS/o27Lo4rDgJQ:PFSeH9jts7jfeLJwut5DblSogq

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
32	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\llrpiopz\ImagePath = "C:\\Windows\\SysWOW64\\llrpiopz\\elomnndr.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe

Deletes itself 1 IoCs

pid	Process
4540	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1928	elomnndr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1928 set thread context of 4540	1928	elomnndr.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4272	sc.exe
3840	sc.exe
832	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
2016	4488	WerFault.exe	81
4704	1928	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.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	elomnndr.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4868	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	82
PID 4488 wrote to memory of 4868	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	82
PID 4488 wrote to memory of 4868	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	82
PID 4488 wrote to memory of 1992	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	84
PID 4488 wrote to memory of 1992	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	84
PID 4488 wrote to memory of 1992	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	84
PID 4488 wrote to memory of 4272	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	86
PID 4488 wrote to memory of 4272	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	86
PID 4488 wrote to memory of 4272	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	86
PID 4488 wrote to memory of 3840	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	88
PID 4488 wrote to memory of 3840	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	88
PID 4488 wrote to memory of 3840	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	88
PID 4488 wrote to memory of 832	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	90
PID 4488 wrote to memory of 832	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	90
PID 4488 wrote to memory of 832	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	90
PID 4488 wrote to memory of 32	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	93
PID 4488 wrote to memory of 32	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	93
PID 4488 wrote to memory of 32	4488	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	93
PID 1928 wrote to memory of 4540	1928	elomnndr.exe	98
PID 1928 wrote to memory of 4540	1928	elomnndr.exe	98
PID 1928 wrote to memory of 4540	1928	elomnndr.exe	98
PID 1928 wrote to memory of 4540	1928	elomnndr.exe	98
PID 1928 wrote to memory of 4540	1928	elomnndr.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\llrpiopz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\elomnndr.exe" C:\Windows\SysWOW64\llrpiopz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create llrpiopz binPath= "C:\Windows\SysWOW64\llrpiopz\elomnndr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4272
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description llrpiopz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start llrpiopz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:832
- 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:32
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 1040
  2⤵
  - Program crash
  PID:2016

C:\Windows\SysWOW64\llrpiopz\elomnndr.exe
C:\Windows\SysWOW64\llrpiopz\elomnndr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1928 -s 536
  2⤵
  - Program crash
  PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4488 -ip 4488
1⤵
PID:2636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1928 -ip 1928
1⤵
PID:2224

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\elomnndr.exe

Filesize
11.4MB

MD5
f95d07cd8ca8fbc116fbeb1b124d38f7

SHA1
b350f825f99cfbe5e19b44373bd4eb533401911e

SHA256
6d2965029e7c712ce83bc74572be5b17792172ff6eea34b45531c5dc1077401f

SHA512
304d1ad34b9cb256d86fcfa7d2933dd387d9d11388b986018fda6a57bc81a9fc3b9e47cbdb1063e30d4f6aba3c56e83020d8ef262beb0dfc978b87418219e001

Download Submit
memory/1928-16-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/1928-11-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/1928-13-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4488-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4488-2-0x00000000009A0000-0x00000000009B3000-memory.dmp

Filesize
76KB

Download
memory/4488-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4488-9-0x00000000009A0000-0x00000000009B3000-memory.dmp

Filesize
76KB

Download
memory/4488-8-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4488-1-0x0000000000B10000-0x0000000000C10000-memory.dmp

Filesize
1024KB

Download
memory/4540-15-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/4540-12-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/4540-17-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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