tofsee | dc29002568fbc6453ba1d57da0ecac5b759464026b4d3d110abc4daf36e7de00

General

Target

fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe
Size

14.7MB
MD5

fe624503ac7e44c8dcf7931bee3d7628
SHA1

e3750c0623555c8f7e1500825215d21a4a106319
SHA256

dc29002568fbc6453ba1d57da0ecac5b759464026b4d3d110abc4daf36e7de00
SHA512

96c6c25d2b2d7f8fc87a49a96c461ba2fb3e08f46795c4acd9999af1a7bd676fa07d5829d914f37a90516d3acef13b2e2f62530efb316a83ee04175da2248d6a
SSDEEP

24576:Ogdy5yNM4444444444444444444444444444444444444444444444444444444U:

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

748 netsh.exe

pid	process
748	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\lzsfvonh\ImagePath = "C:\\Windows\\SysWOW64\\lzsfvonh\\ytdguffn.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:

fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

5044 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ytdguffn.exe

pid process

2264 ytdguffn.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ytdguffn.exe

description pid process target process

PID 2264 set thread context of 5044 2264 ytdguffn.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

2272 sc.exe
3280 sc.exe
4804 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

1288 1404 WerFault.exe fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe
3024 2264 WerFault.exe ytdguffn.exe

pid	process
5044	svchost.exe

pid	process
2264	ytdguffn.exe

description	pid	process	target process
PID 2264 set thread context of 5044	2264	ytdguffn.exe	svchost.exe

pid	process
2272	sc.exe
3280	sc.exe
4804	sc.exe

pid	pid_target	process	target process
1288	1404	WerFault.exe	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe
3024	2264	WerFault.exe	ytdguffn.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exeytdguffn.exe

description	pid	process	target process
PID 1404 wrote to memory of 2900	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	cmd.exe
PID 1404 wrote to memory of 2900	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	cmd.exe
PID 1404 wrote to memory of 2900	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	cmd.exe
PID 1404 wrote to memory of 976	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	cmd.exe
PID 1404 wrote to memory of 976	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	cmd.exe
PID 1404 wrote to memory of 976	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	cmd.exe
PID 1404 wrote to memory of 2272	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 2272	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 2272	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 3280	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 3280	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 3280	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 4804	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 4804	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 4804	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	sc.exe
PID 1404 wrote to memory of 748	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	netsh.exe
PID 1404 wrote to memory of 748	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	netsh.exe
PID 1404 wrote to memory of 748	1404	fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe	netsh.exe
PID 2264 wrote to memory of 5044	2264	ytdguffn.exe	svchost.exe
PID 2264 wrote to memory of 5044	2264	ytdguffn.exe	svchost.exe
PID 2264 wrote to memory of 5044	2264	ytdguffn.exe	svchost.exe
PID 2264 wrote to memory of 5044	2264	ytdguffn.exe	svchost.exe
PID 2264 wrote to memory of 5044	2264	ytdguffn.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1404

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lzsfvonh\
2⤵
PID:2900

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ytdguffn.exe" C:\Windows\SysWOW64\lzsfvonh\
2⤵
PID:976

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create lzsfvonh binPath= "C:\Windows\SysWOW64\lzsfvonh\ytdguffn.exe /d\"C:\Users\Admin\AppData\Local\Temp\fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2272

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description lzsfvonh "wifi internet conection"
2⤵
- Launches sc.exe
PID:3280

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start lzsfvonh
2⤵
- Launches sc.exe
PID:4804

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:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1404 -s 580
2⤵
- Program crash
PID:1288

C:\Windows\SysWOW64\lzsfvonh\ytdguffn.exe
C:\Windows\SysWOW64\lzsfvonh\ytdguffn.exe /d"C:\Users\Admin\AppData\Local\Temp\fe624503ac7e44c8dcf7931bee3d7628_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2264

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 516
2⤵
- Program crash
PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1404 -ip 1404
1⤵
PID:4364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2264 -ip 2264
1⤵
PID:2488

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

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Downloads

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

Filesize
12.5MB

MD5
21aa401482855549b394189bada6fd74

SHA1
3216ed74a8960b96a8ee7180795f405a259fc838

SHA256
483c6c6bff464c7c062228098eb06132b187da238c629af921c571abd0fe901e

SHA512
44b15ec2e7e4953cf838ff938319b7db1fa4faab142a7adaf1eb4276f2b62b4f974a8826a7feeff6e86d38b5e2c1950eb2d8fb4a617927ce92bb1b2d50898d47

Download Submit
memory/1404-1-0x0000000000470000-0x0000000000570000-memory.dmp

Filesize
1024KB

Download
memory/1404-2-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1404-4-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1404-8-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1404-9-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2264-10-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/2264-11-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2264-16-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/5044-12-0x0000000000240000-0x0000000000255000-memory.dmp

Filesize
84KB

Download
memory/5044-15-0x0000000000240000-0x0000000000255000-memory.dmp

Filesize
84KB

Download
memory/5044-17-0x0000000000240000-0x0000000000255000-memory.dmp

Filesize
84KB

Download
memory/5044-18-0x0000000000240000-0x0000000000255000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads