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
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

3236 netsh.exe

pid	process
3236	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\zmakfbqq\ImagePath = "C:\\Windows\\SysWOW64\\zmakfbqq\\igvhbxiy.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

Processes:

023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4132 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

igvhbxiy.exe

pid process

4224 igvhbxiy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

igvhbxiy.exe

description pid process target process

PID 4224 set thread context of 4132 4224 igvhbxiy.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

4904 sc.exe
520 sc.exe
3376 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4132	svchost.exe

pid	process
4224	igvhbxiy.exe

description	pid	process	target process
PID 4224 set thread context of 4132	4224	igvhbxiy.exe	svchost.exe

pid	process
4904	sc.exe
520	sc.exe
3376	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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

980 3120 WerFault.exe 023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe
628 4224 WerFault.exe igvhbxiy.exe

pid	pid_target	process	target process
980	3120	WerFault.exe	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe
628	4224	WerFault.exe	igvhbxiy.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:

sc.exesc.exenetsh.execmd.execmd.exesc.exeigvhbxiy.exesvchost.exe023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe

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

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exeigvhbxiy.exe

description	pid	process	target process
PID 3120 wrote to memory of 1912	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 3120 wrote to memory of 1912	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 3120 wrote to memory of 1912	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 3120 wrote to memory of 964	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 3120 wrote to memory of 964	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 3120 wrote to memory of 964	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	cmd.exe
PID 3120 wrote to memory of 4904	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 4904	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 4904	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 520	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 520	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 520	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 3376	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 3376	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 3376	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	sc.exe
PID 3120 wrote to memory of 3236	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	netsh.exe
PID 3120 wrote to memory of 3236	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	netsh.exe
PID 3120 wrote to memory of 3236	3120	023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe	netsh.exe
PID 4224 wrote to memory of 4132	4224	igvhbxiy.exe	svchost.exe
PID 4224 wrote to memory of 4132	4224	igvhbxiy.exe	svchost.exe
PID 4224 wrote to memory of 4132	4224	igvhbxiy.exe	svchost.exe
PID 4224 wrote to memory of 4132	4224	igvhbxiy.exe	svchost.exe
PID 4224 wrote to memory of 4132	4224	igvhbxiy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\023aefdcf5911152d6736142b76bb18e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3120

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zmakfbqq\
2⤵
- System Location Discovery: System Language Discovery
PID:1912

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\igvhbxiy.exe" C:\Windows\SysWOW64\zmakfbqq\
2⤵
- System Location Discovery: System Language Discovery
PID:964

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zmakfbqq binPath= "C:\Windows\SysWOW64\zmakfbqq\igvhbxiy.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:4904

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zmakfbqq "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:520

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zmakfbqq
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3376

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:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 676
2⤵
- Program crash
PID:980

C:\Windows\SysWOW64\zmakfbqq\igvhbxiy.exe
C:\Windows\SysWOW64\zmakfbqq\igvhbxiy.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:4224

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:4132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4224 -s 512
2⤵
- Program crash
PID:628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3120 -ip 3120
1⤵
PID:1048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4224 -ip 4224
1⤵
PID:2804

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\igvhbxiy.exe

Filesize
12.6MB

MD5
79e24581526ffc14f107bb3bc28ff108

SHA1
2ca1b6f5fc30878238ccf481acd095d51b430c8e

SHA256
ee3e70cbecce8d6441bf0ab40c6e8c9b6bd25766ec39831de257ba1bf4d373c1

SHA512
5bef24d5305d930875422a1eb974a4d533b097a466251dda0ef5882237a09a0767df7815861f58da0e8c2fa07178358593b113a5a05a068997663e4e94fbb841

Download Submit
memory/3120-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/3120-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3120-2-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3120-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3120-9-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3120-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/4132-14-0x0000000000940000-0x0000000000955000-memory.dmp

Filesize
84KB

Download
memory/4132-16-0x0000000000940000-0x0000000000955000-memory.dmp

Filesize
84KB

Download
memory/4132-17-0x0000000000940000-0x0000000000955000-memory.dmp

Filesize
84KB

Download
memory/4224-13-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4224-18-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4224-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4224-12-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads