tofsee | 408991d9ab5d2e28ef08033bd0862f6414e7bf5d8103f495e574ca0fe2dde100

General

Target

f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe
Size

11.9MB
MD5

f778d016c779877f1621ce4bc8ebbed2
SHA1

5d70d5a89660426ad2077130adbc734f0f74969e
SHA256

408991d9ab5d2e28ef08033bd0862f6414e7bf5d8103f495e574ca0fe2dde100
SHA512

f7b39bba47ceea770b8f2975efa9c29b22b0e72788c6d90d42c6ff04433cac99f3c1a82d87351d5b81712cdfe31460ccc5300b8b2fc24018783f9b3e7bb9e777
SSDEEP

24576:RlxdvCcpOKCtBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBR:RlzOR

Score

10^/10

tofsee evasion persistence 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) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

4912 netsh.exe

pid	process
4912	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\gfbqheaf\ImagePath = "C:\\Windows\\SysWOW64\\gfbqheaf\\anjzhojt.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:

f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4744 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

anjzhojt.exe

pid process

3744 anjzhojt.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

anjzhojt.exe

description pid process target process

PID 3744 set thread context of 4744 3744 anjzhojt.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

4504 sc.exe
612 sc.exe
4240 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

688 2820 WerFault.exe f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe
1352 3744 WerFault.exe anjzhojt.exe

pid	process
4744	svchost.exe

pid	process
3744	anjzhojt.exe

description	pid	process	target process
PID 3744 set thread context of 4744	3744	anjzhojt.exe	svchost.exe

pid	process
4504	sc.exe
612	sc.exe
4240	sc.exe

pid	pid_target	process	target process
688	2820	WerFault.exe	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe
1352	3744	WerFault.exe	anjzhojt.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exeanjzhojt.exe

description	pid	process	target process
PID 2820 wrote to memory of 4824	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 2820 wrote to memory of 4824	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 2820 wrote to memory of 4824	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 2820 wrote to memory of 3928	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 2820 wrote to memory of 3928	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 2820 wrote to memory of 3928	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 2820 wrote to memory of 4504	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 4504	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 4504	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 612	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 612	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 612	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 4240	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 4240	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 4240	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 2820 wrote to memory of 4912	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	netsh.exe
PID 2820 wrote to memory of 4912	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	netsh.exe
PID 2820 wrote to memory of 4912	2820	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	netsh.exe
PID 3744 wrote to memory of 4744	3744	anjzhojt.exe	svchost.exe
PID 3744 wrote to memory of 4744	3744	anjzhojt.exe	svchost.exe
PID 3744 wrote to memory of 4744	3744	anjzhojt.exe	svchost.exe
PID 3744 wrote to memory of 4744	3744	anjzhojt.exe	svchost.exe
PID 3744 wrote to memory of 4744	3744	anjzhojt.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2820

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gfbqheaf\
2⤵
PID:4824

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\anjzhojt.exe" C:\Windows\SysWOW64\gfbqheaf\
2⤵
PID:3928

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create gfbqheaf binPath= "C:\Windows\SysWOW64\gfbqheaf\anjzhojt.exe /d\"C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4504

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description gfbqheaf "wifi internet conection"
2⤵
- Launches sc.exe
PID:612

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start gfbqheaf
2⤵
- Launches sc.exe
PID:4240

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
PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 1236
2⤵
- Program crash
PID:688

C:\Windows\SysWOW64\gfbqheaf\anjzhojt.exe
C:\Windows\SysWOW64\gfbqheaf\anjzhojt.exe /d"C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3744

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3744 -s 520
2⤵
- Program crash
PID:1352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2820 -ip 2820
1⤵
PID:3400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3744 -ip 3744
1⤵
PID:952

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\anjzhojt.exe
Filesize
14.6MB

MD5
89c8164f144aedd7d1f1bdffdcb61f80

SHA1
0d2ab0183ea678272223eed91ec750fab6ea44ef

SHA256
6d024af29e8db9939432d3402e6f98766bfd6d920f247c5f1771206299358318

SHA512
a6fc8e4205b50765701c94c399cbe41b7effe7690e5117b6eb6fcdbff230527ea91c0542440902ac351850d978e353da9b74cb585dee8503d35b392bbc716a4d

Download Submit
memory/2820-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2820-2-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/2820-3-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2820-8-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2820-9-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/3744-10-0x0000000000760000-0x0000000000860000-memory.dmp

Filesize
1024KB

Download
memory/3744-12-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/4744-11-0x0000000000A20000-0x0000000000A35000-memory.dmp

Filesize
84KB

Download
memory/4744-15-0x0000000000A20000-0x0000000000A35000-memory.dmp

Filesize
84KB

Download
memory/4744-17-0x0000000000A20000-0x0000000000A35000-memory.dmp

Filesize
84KB

Download
memory/4744-18-0x0000000000A20000-0x0000000000A35000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads