tofsee | dacb0e8a5b8abd37770016b0ea137fe0ddc7a098a00fdcf37246daca01b15762

General

Target

fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe
Size

11.5MB
MD5

fbf7f5a1d66ec9bd0a2e87620f4b6436
SHA1

7ba7cb141c344e42e70fa8aeaadfbc67cb5a7556
SHA256

dacb0e8a5b8abd37770016b0ea137fe0ddc7a098a00fdcf37246daca01b15762
SHA512

31180bfc9255be6f8f02780793492ebe28d56725819eb181d0289f2e1e260e4109c1a0f37c540ffd237164afc656fff6a8a9b31c9fcb6bc140d9110d0d75315c
SSDEEP

24576:DjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee+:D/D

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

2228 netsh.exe

pid	process
2228	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\vrathjrj\ImagePath = "C:\\Windows\\SysWOW64\\vrathjrj\\skppwoim.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:

fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

skppwoim.exe

pid process

4160 skppwoim.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

skppwoim.exe

description pid process target process

PID 4160 set thread context of 3568 4160 skppwoim.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

1652 sc.exe
5100 sc.exe
2952 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4160	skppwoim.exe

description	pid	process	target process
PID 4160 set thread context of 3568	4160	skppwoim.exe	svchost.exe

pid	process
1652	sc.exe
5100	sc.exe
2952	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exeskppwoim.exe

description	pid	process	target process
PID 4416 wrote to memory of 4536	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	cmd.exe
PID 4416 wrote to memory of 4536	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	cmd.exe
PID 4416 wrote to memory of 4536	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	cmd.exe
PID 4416 wrote to memory of 3596	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	cmd.exe
PID 4416 wrote to memory of 3596	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	cmd.exe
PID 4416 wrote to memory of 3596	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	cmd.exe
PID 4416 wrote to memory of 2952	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 2952	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 2952	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 1652	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 1652	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 1652	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 5100	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 5100	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 5100	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	sc.exe
PID 4416 wrote to memory of 2228	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	netsh.exe
PID 4416 wrote to memory of 2228	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	netsh.exe
PID 4416 wrote to memory of 2228	4416	fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe	netsh.exe
PID 4160 wrote to memory of 3568	4160	skppwoim.exe	svchost.exe
PID 4160 wrote to memory of 3568	4160	skppwoim.exe	svchost.exe
PID 4160 wrote to memory of 3568	4160	skppwoim.exe	svchost.exe
PID 4160 wrote to memory of 3568	4160	skppwoim.exe	svchost.exe
PID 4160 wrote to memory of 3568	4160	skppwoim.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4416

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vrathjrj\
2⤵
PID:4536

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\skppwoim.exe" C:\Windows\SysWOW64\vrathjrj\
2⤵
PID:3596

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create vrathjrj binPath= "C:\Windows\SysWOW64\vrathjrj\skppwoim.exe /d\"C:\Users\Admin\AppData\Local\Temp\fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2952

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description vrathjrj "wifi internet conection"
2⤵
- Launches sc.exe
PID:1652

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start vrathjrj
2⤵
- Launches sc.exe
PID:5100

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:2228

C:\Windows\SysWOW64\vrathjrj\skppwoim.exe
C:\Windows\SysWOW64\vrathjrj\skppwoim.exe /d"C:\Users\Admin\AppData\Local\Temp\fbf7f5a1d66ec9bd0a2e87620f4b6436_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4160

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:3568

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\skppwoim.exe
Filesize
14.8MB

MD5
fb53a3645626f491923c495997330c8d

SHA1
da6c44e90b85ea788c4076b7ed67d1b02213ccfe

SHA256
ad93fa58692bf500dc7f4a54513d87f0cceeaf9a955bc3d366abd2e2bbcaeedb

SHA512
311e78a1740839ff21a31f1082d881ce31157c11767b901bef6232b9afd34e7fe18d93badf8f54d65ef4ec1d64dcfdf7ec6cc9f1ee25429fe9c51342b0926a37

Download Submit
memory/3568-10-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3568-13-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3568-25-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3568-16-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3568-15-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/4160-17-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4160-9-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4160-8-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/4160-23-0x0000000000D40000-0x0000000000D53000-memory.dmp

Filesize
76KB

Download
memory/4416-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/4416-14-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4416-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4416-20-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/4416-2-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads