tofsee | 721e647c410d5b1a11fa7f0cf738fd5ebae93e22a3603ef717534eb127534b77

General

Target

15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe
Size

239KB
MD5

15d4d4bc8ed67fa74d66fe6916c31b90
SHA1

60822f14ffc83bf592cf8680d7ee76e132288811
SHA256

721e647c410d5b1a11fa7f0cf738fd5ebae93e22a3603ef717534eb127534b77
SHA512

d66c56e07838c4d87f5bcf728cf4780bcc5d9cc509e40816d7518760f97ebe7394935a9fe7eba5b30e2d3ae201b07cdd26491c75ac798ed5fd74fe72ce0470f7
SSDEEP

6144:fesoFeYHECHsLsx6mihb12P5qpWV0m68jM7LjmpeM:fnu/HECz6S5QWlnqOpe

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\nifqeqx = "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

2728 netsh.exe

pid	process
2728	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\nifqeqx\ImagePath = "C:\\Windows\\SysWOW64\\nifqeqx\\pbnvvgvd.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2852 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

pbnvvgvd.exe

pid process

2832 pbnvvgvd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

pbnvvgvd.exe

description pid process target process

PID 2832 set thread context of 2852 2832 pbnvvgvd.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

1056 sc.exe
2776 sc.exe
2760 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2852	svchost.exe

pid	process
2832	pbnvvgvd.exe

description	pid	process	target process
PID 2832 set thread context of 2852	2832	pbnvvgvd.exe	svchost.exe

pid	process
1056	sc.exe
2776	sc.exe
2760	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:

pbnvvgvd.exe15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.execmd.exesc.exenetsh.execmd.exesc.exesc.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pbnvvgvd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.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	netsh.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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exepbnvvgvd.exe

description	pid	process	target process
PID 2476 wrote to memory of 1916	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 1916	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 1916	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 1916	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2320	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2320	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2320	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2320	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	cmd.exe
PID 2476 wrote to memory of 2760	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2760	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2760	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2760	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 1056	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 1056	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 1056	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 1056	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2776	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2776	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2776	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2776	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	sc.exe
PID 2476 wrote to memory of 2728	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	netsh.exe
PID 2476 wrote to memory of 2728	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	netsh.exe
PID 2476 wrote to memory of 2728	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	netsh.exe
PID 2476 wrote to memory of 2728	2476	15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe	netsh.exe
PID 2832 wrote to memory of 2852	2832	pbnvvgvd.exe	svchost.exe
PID 2832 wrote to memory of 2852	2832	pbnvvgvd.exe	svchost.exe
PID 2832 wrote to memory of 2852	2832	pbnvvgvd.exe	svchost.exe
PID 2832 wrote to memory of 2852	2832	pbnvvgvd.exe	svchost.exe
PID 2832 wrote to memory of 2852	2832	pbnvvgvd.exe	svchost.exe
PID 2832 wrote to memory of 2852	2832	pbnvvgvd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2476

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nifqeqx\
2⤵
- System Location Discovery: System Language Discovery
PID:1916

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pbnvvgvd.exe" C:\Windows\SysWOW64\nifqeqx\
2⤵
- System Location Discovery: System Language Discovery
PID:2320

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create nifqeqx binPath= "C:\Windows\SysWOW64\nifqeqx\pbnvvgvd.exe /d\"C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2760

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description nifqeqx "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1056

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start nifqeqx
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2776

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:2728

C:\Windows\SysWOW64\nifqeqx\pbnvvgvd.exe
C:\Windows\SysWOW64\nifqeqx\pbnvvgvd.exe /d"C:\Users\Admin\AppData\Local\Temp\15d4d4bc8ed67fa74d66fe6916c31b90_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832

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:2852

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\pbnvvgvd.exe

Filesize
12.8MB

MD5
b9d23e7715004058ee18ad2e94055d11

SHA1
89089904fc14418144aa9df50d6debfc0199743e

SHA256
3d1a11a044ead03f13c7e0e86e6cc0343c37a1d38de7a790eb33ad575b667c82

SHA512
7163518deb3daa740586b5be8be757b7527c40d8704f2e5505af77b019f6245ebcd348bfa542f3f124b7e2a4d95aaa0afd5130438c591a90fd7de4cf96a44099

Download Submit
memory/2476-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2476-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2476-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2476-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2476-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2476-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2832-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2852-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads