tofsee | 0edbb9de88c5727421608daa4897683ff3cec55d739ffe8c9c9a446314fe254b

General

Target

023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe
Size

12.0MB
MD5

023aefdcf5911152d6736142b76bb18e
SHA1

c36f8c95bf1a1d0093ad890c708803cf27bffc4c
SHA256

0edbb9de88c5727421608daa4897683ff3cec55d739ffe8c9c9a446314fe254b
SHA512

323f53f30ef6860b3bd8d32d9e358124c156328d3ff66aaa75b43a801e0c292e3ad662cc807c54dd1e275c9a0cb595d6867588af49c0f16374b81d10186af14d
SSDEEP

49152:XGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGn:

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

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\fajbovw = "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

2916 netsh.exe

pid	process
2916	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\fajbovw\ImagePath = "C:\\Windows\\SysWOW64\\fajbovw\\uokqbldj.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1680 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

uokqbldj.exe

pid process

2784 uokqbldj.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

uokqbldj.exe

description pid process target process

PID 2784 set thread context of 1680 2784 uokqbldj.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

1784 sc.exe
2236 sc.exe
2936 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1680	svchost.exe

pid	process
2784	uokqbldj.exe

description	pid	process	target process
PID 2784 set thread context of 1680	2784	uokqbldj.exe	svchost.exe

pid	process
1784	sc.exe
2236	sc.exe
2936	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 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

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:

023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exesc.exesvchost.execmd.execmd.exesc.exesc.exenetsh.exeuokqbldj.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.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
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	uokqbldj.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exeuokqbldj.exe

description	pid	process	target process
PID 2716 wrote to memory of 1300	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1300	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1300	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1300	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1480	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1480	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1480	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1480	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 2716 wrote to memory of 1784	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 1784	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 1784	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 1784	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2236	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2236	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2236	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2236	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2936	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2936	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2936	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2936	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 2716 wrote to memory of 2916	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	netsh.exe
PID 2716 wrote to memory of 2916	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	netsh.exe
PID 2716 wrote to memory of 2916	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	netsh.exe
PID 2716 wrote to memory of 2916	2716	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	netsh.exe
PID 2784 wrote to memory of 1680	2784	uokqbldj.exe	svchost.exe
PID 2784 wrote to memory of 1680	2784	uokqbldj.exe	svchost.exe
PID 2784 wrote to memory of 1680	2784	uokqbldj.exe	svchost.exe
PID 2784 wrote to memory of 1680	2784	uokqbldj.exe	svchost.exe
PID 2784 wrote to memory of 1680	2784	uokqbldj.exe	svchost.exe
PID 2784 wrote to memory of 1680	2784	uokqbldj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fajbovw\
2⤵
- System Location Discovery: System Language Discovery
PID:1300

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uokqbldj.exe" C:\Windows\SysWOW64\fajbovw\
2⤵
- System Location Discovery: System Language Discovery
PID:1480

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create fajbovw binPath= "C:\Windows\SysWOW64\fajbovw\uokqbldj.exe /d\"C:\Users\Admin\AppData\Local\Temp\023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1784

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description fajbovw "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2236

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start fajbovw
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2936

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:2916

C:\Windows\SysWOW64\fajbovw\uokqbldj.exe
C:\Windows\SysWOW64\fajbovw\uokqbldj.exe /d"C:\Users\Admin\AppData\Local\Temp\023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784

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:1680

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\uokqbldj.exe

Filesize
11.1MB

MD5
1d7a383cf11235d4b596cf55b001bd6e

SHA1
923f51ee076ab83fac7bdb52e30fa8a5846fee73

SHA256
e480a3fea11f31726b69c15415b7fbcde9405f151c796320e2868b5fec73d643

SHA512
efec8df336984f1dd67431950c88da795e8d306449fa040d9210330cb52eb49248d81e182b6a4c02551e1452c43e947cbadf1b57f61b42bde7d61d2828ec5070

Download Submit
memory/1680-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1680-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1680-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1680-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1680-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2716-3-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2716-11-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2716-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2716-9-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2716-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2784-18-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads