tofsee | 02892e399fd7adc46318f48866a653013e7f70b15da1e174d405617fa6fdd816

General

Target

f66228c86c71f368179321b0c382b638_JaffaCakes118.exe
Size

13.8MB
MD5

f66228c86c71f368179321b0c382b638
SHA1

80721fc9d9609b198517f81f09ef281e110cd7f7
SHA256

02892e399fd7adc46318f48866a653013e7f70b15da1e174d405617fa6fdd816
SHA512

145d0dcefebdaf7dae83ecffe66d4857ec4cea9e863b8d21f8f28fa114f376d05b7774b3184907805a6039bd0dc05042b972ead4163b3d3b3b4e990544f22998
SSDEEP

98304:Pjhd88888888888888888888888888888888888888888888888888888888888Q:P

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

176.111.174.19

lazystax.ru

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

1012 netsh.exe

pid	process
1012	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\lwnuyekc\ImagePath = "C:\\Windows\\SysWOW64\\lwnuyekc\\pwgmokpo.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:

f66228c86c71f368179321b0c382b638_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2148 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

pwgmokpo.exe

pid process

3580 pwgmokpo.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

pwgmokpo.exe

description pid process target process

PID 3580 set thread context of 2148 3580 pwgmokpo.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

1192 sc.exe
3856 sc.exe
4652 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

3008 1628 WerFault.exe f66228c86c71f368179321b0c382b638_JaffaCakes118.exe
3988 3580 WerFault.exe pwgmokpo.exe

pid	process
2148	svchost.exe

pid	process
3580	pwgmokpo.exe

description	pid	process	target process
PID 3580 set thread context of 2148	3580	pwgmokpo.exe	svchost.exe

pid	process
1192	sc.exe
3856	sc.exe
4652	sc.exe

pid	pid_target	process	target process
3008	1628	WerFault.exe	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe
3988	3580	WerFault.exe	pwgmokpo.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f66228c86c71f368179321b0c382b638_JaffaCakes118.exepwgmokpo.exe

description	pid	process	target process
PID 1628 wrote to memory of 1928	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	cmd.exe
PID 1628 wrote to memory of 1928	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	cmd.exe
PID 1628 wrote to memory of 1928	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	cmd.exe
PID 1628 wrote to memory of 2476	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	cmd.exe
PID 1628 wrote to memory of 2476	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	cmd.exe
PID 1628 wrote to memory of 2476	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	cmd.exe
PID 1628 wrote to memory of 1192	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 1192	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 1192	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 3856	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 3856	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 3856	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 4652	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 4652	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 4652	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	sc.exe
PID 1628 wrote to memory of 1012	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	netsh.exe
PID 1628 wrote to memory of 1012	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	netsh.exe
PID 1628 wrote to memory of 1012	1628	f66228c86c71f368179321b0c382b638_JaffaCakes118.exe	netsh.exe
PID 3580 wrote to memory of 2148	3580	pwgmokpo.exe	svchost.exe
PID 3580 wrote to memory of 2148	3580	pwgmokpo.exe	svchost.exe
PID 3580 wrote to memory of 2148	3580	pwgmokpo.exe	svchost.exe
PID 3580 wrote to memory of 2148	3580	pwgmokpo.exe	svchost.exe
PID 3580 wrote to memory of 2148	3580	pwgmokpo.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lwnuyekc\
2⤵
PID:1928

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwgmokpo.exe" C:\Windows\SysWOW64\lwnuyekc\
2⤵
PID:2476

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create lwnuyekc binPath= "C:\Windows\SysWOW64\lwnuyekc\pwgmokpo.exe /d\"C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1192

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description lwnuyekc "wifi internet conection"
2⤵
- Launches sc.exe
PID:3856

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start lwnuyekc
2⤵
- Launches sc.exe
PID:4652

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:1012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 664
2⤵
- Program crash
PID:3008

C:\Windows\SysWOW64\lwnuyekc\pwgmokpo.exe
C:\Windows\SysWOW64\lwnuyekc\pwgmokpo.exe /d"C:\Users\Admin\AppData\Local\Temp\f66228c86c71f368179321b0c382b638_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3580

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 520
2⤵
- Program crash
PID:3988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1628 -ip 1628
1⤵
PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3580 -ip 3580
1⤵
PID:3972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\pwgmokpo.exe

Filesize
11.6MB

MD5
9973e3782eb7150e65762a154858e205

SHA1
921c0398f56e7250cf1576d3dae121126777afaf

SHA256
b14eb57571abb883500fdbcfa5f2a6e4b5bae820b39dc460bc0ef36c54c5dedb

SHA512
16d00e72c1fd2bbb668c8d6871327d9a5c1db1b8ce5ecc95480dab37be95481262fcb40a733eef1ab92828d3d44aa092dee2617c686dd35e9a00e5bc8ae6ad8d

Download Submit
memory/1628-1-0x0000000000760000-0x0000000000860000-memory.dmp

Filesize
1024KB

Download
memory/1628-4-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1628-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1628-8-0x00000000006D0000-0x00000000006E3000-memory.dmp

Filesize
76KB

Download
memory/1628-2-0x00000000006D0000-0x00000000006E3000-memory.dmp

Filesize
76KB

Download
memory/2148-12-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/2148-15-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/2148-18-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/2148-19-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/2148-16-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/3580-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3580-10-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/3580-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads