tofsee | eca59671c5b27920d3194bf8367a55c451a8aa6f78eb0b6dc5400fd0bec9e531

General

Target

0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe
Size

10.0MB
MD5

0866bfed4e41dc6490faa8c4d149d42e
SHA1

9f3409b0408c9573beeadd30c4ed7d5c95e7d1d2
SHA256

eca59671c5b27920d3194bf8367a55c451a8aa6f78eb0b6dc5400fd0bec9e531
SHA512

2b3cd6e677751de715c603624e51fa2eec754ec1c75baf5ff303f6e0c64b5d01f5c1290fcae8ec97fb917d52ab7ad5c5a03b07313994b192cd74552e465f1ec6
SSDEEP

49152:CMeuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuH:C

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\kartjple = "0"	svchost.exe

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

Processes:

netsh.exe

pid process

2596 netsh.exe

pid	process
2596	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\kartjple\ImagePath = "C:\\Windows\\SysWOW64\\kartjple\\rzosfdmm.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2628 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

rzosfdmm.exe

pid process

2800 rzosfdmm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rzosfdmm.exe

description pid process target process

PID 2800 set thread context of 2628 2800 rzosfdmm.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2848 sc.exe
2844 sc.exe
2784 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2628	svchost.exe

pid	process
2800	rzosfdmm.exe

description	pid	process	target process
PID 2800 set thread context of 2628	2800	rzosfdmm.exe	svchost.exe

pid	process
2848	sc.exe
2844	sc.exe
2784	sc.exe

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

Processes:

netsh.exe

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

Processes:

netsh.exe0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exesc.exesc.exesc.exerzosfdmm.exesvchost.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rzosfdmm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exerzosfdmm.exe

description	pid	process	target process
PID 2656 wrote to memory of 3004	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 3004	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 3004	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 3004	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 2748	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 2748	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 2748	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 2748	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	cmd.exe
PID 2656 wrote to memory of 2848	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2848	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2848	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2848	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2844	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2844	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2844	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2844	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2784	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2784	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2784	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2784	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	sc.exe
PID 2656 wrote to memory of 2596	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	netsh.exe
PID 2656 wrote to memory of 2596	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	netsh.exe
PID 2656 wrote to memory of 2596	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	netsh.exe
PID 2656 wrote to memory of 2596	2656	0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe	netsh.exe
PID 2800 wrote to memory of 2628	2800	rzosfdmm.exe	svchost.exe
PID 2800 wrote to memory of 2628	2800	rzosfdmm.exe	svchost.exe
PID 2800 wrote to memory of 2628	2800	rzosfdmm.exe	svchost.exe
PID 2800 wrote to memory of 2628	2800	rzosfdmm.exe	svchost.exe
PID 2800 wrote to memory of 2628	2800	rzosfdmm.exe	svchost.exe
PID 2800 wrote to memory of 2628	2800	rzosfdmm.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kartjple\
2⤵
- System Location Discovery: System Language Discovery
PID:3004

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rzosfdmm.exe" C:\Windows\SysWOW64\kartjple\
2⤵
- System Location Discovery: System Language Discovery
PID:2748

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create kartjple binPath= "C:\Windows\SysWOW64\kartjple\rzosfdmm.exe /d\"C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2848

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description kartjple "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2844

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start kartjple
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2784

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:2596

C:\Windows\SysWOW64\kartjple\rzosfdmm.exe
C:\Windows\SysWOW64\kartjple\rzosfdmm.exe /d"C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2628

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\rzosfdmm.exe

Filesize
13.5MB

MD5
348cfb80d94a0c43648617d6340a6ac6

SHA1
90540e827d6368e90e1aae6a34e6be0edb37fe43

SHA256
3df4c09145e0e7ec4d37c534dc92ac49327f741b4d1d80ac8129582389a21df7

SHA512
c17f0e2dc23000695d7030ef02821b459086fcb851a0d95e031ddabe3eae303e2ff0826464288173c4c73f2b0e51471dc5b5b3ee86185d042d1e84911413f86d

Download Submit
memory/2628-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2656-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2656-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2656-7-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2656-9-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2656-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2656-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2800-17-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads