tofsee | a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d

General

Target

JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe
Size

153KB
MD5

18e44b2036f311423755b28f21676f82
SHA1

34fffe3ca810d3a4850e60b108bf8b0d140f2c9d
SHA256

a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d
SHA512

927baa57a78dc23f6b9f64cc3fd693db79f7580dd906c6cdebb88a7d539ceede2a5583b8bf15e91d162d3b66833bf568f55b48557466af33f281e80548521126
SSDEEP

1536:g3XTaOHdVEPuyp3GwwsMoqOhvQ87hKWng68gp5ZSuxgRJ355VfyvPt/CD6H:gzamdxyDwGr7hK4z8gp5iL35r6v0O

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
2412	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\lmtxpneg\ImagePath = "C:\\Windows\\SysWOW64\\lmtxpneg\\oahbgmzh.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe

Deletes itself 1 IoCs

pid	Process
1720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3764	oahbgmzh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3764 set thread context of 1720	3764	oahbgmzh.exe	96

Launches sc.exe 3 IoCs

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

pid	Process
3944	sc.exe
3460	sc.exe
1912	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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oahbgmzh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 560 wrote to memory of 4884	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	83
PID 560 wrote to memory of 4884	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	83
PID 560 wrote to memory of 4884	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	83
PID 560 wrote to memory of 1672	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	85
PID 560 wrote to memory of 1672	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	85
PID 560 wrote to memory of 1672	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	85
PID 560 wrote to memory of 3460	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	87
PID 560 wrote to memory of 3460	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	87
PID 560 wrote to memory of 3460	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	87
PID 560 wrote to memory of 1912	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	89
PID 560 wrote to memory of 1912	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	89
PID 560 wrote to memory of 1912	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	89
PID 560 wrote to memory of 3944	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	91
PID 560 wrote to memory of 3944	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	91
PID 560 wrote to memory of 3944	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	91
PID 560 wrote to memory of 2412	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	94
PID 560 wrote to memory of 2412	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	94
PID 560 wrote to memory of 2412	560	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	94
PID 3764 wrote to memory of 1720	3764	oahbgmzh.exe	96
PID 3764 wrote to memory of 1720	3764	oahbgmzh.exe	96
PID 3764 wrote to memory of 1720	3764	oahbgmzh.exe	96
PID 3764 wrote to memory of 1720	3764	oahbgmzh.exe	96
PID 3764 wrote to memory of 1720	3764	oahbgmzh.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lmtxpneg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oahbgmzh.exe" C:\Windows\SysWOW64\lmtxpneg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lmtxpneg binPath= "C:\Windows\SysWOW64\lmtxpneg\oahbgmzh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3460
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lmtxpneg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lmtxpneg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3944
- 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:2412

C:\Windows\SysWOW64\lmtxpneg\oahbgmzh.exe
C:\Windows\SysWOW64\lmtxpneg\oahbgmzh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1720

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\oahbgmzh.exe

Filesize
11.2MB

MD5
d7b9eb74953976cf688477581c2dbe54

SHA1
2b43466f8f151750e49133bbc6e8971c0071bb76

SHA256
416a1879dd12b29756205a1acff0bc51d158b2f98e9c26975a8fa7889d041902

SHA512
72c584fe4909c9c02e318012afb53597d0a5e4302b86fa1003d3f26e91256f34f4fadca33c5676a173c611f3ec0af1bb6d7edb65b5db336e37cbb38b2c4f3dc2

Download Submit
memory/560-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/560-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/560-2-0x0000000002210000-0x0000000002223000-memory.dmp

Filesize
76KB

Download
memory/560-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/560-9-0x0000000002210000-0x0000000002223000-memory.dmp

Filesize
76KB

Download
memory/560-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/1720-14-0x0000000000740000-0x0000000000755000-memory.dmp

Filesize
84KB

Download
memory/1720-16-0x0000000000740000-0x0000000000755000-memory.dmp

Filesize
84KB

Download
memory/1720-17-0x0000000000740000-0x0000000000755000-memory.dmp

Filesize
84KB

Download
memory/3764-11-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3764-13-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3764-12-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3764-19-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads