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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\xaxgqxws = "0"	svchost.exe

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

1708 netsh.exe

pid	process
1708	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\xaxgqxws\ImagePath = "C:\\Windows\\SysWOW64\\xaxgqxws\\rmblqvnl.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2444 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

rmblqvnl.exe

pid process

2420 rmblqvnl.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rmblqvnl.exe

description pid process target process

PID 2420 set thread context of 2444 2420 rmblqvnl.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

2544 sc.exe
2896 sc.exe
320 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2444	svchost.exe

pid	process
2420	rmblqvnl.exe

description	pid	process	target process
PID 2420 set thread context of 2444	2420	rmblqvnl.exe	svchost.exe

pid	process
2544	sc.exe
2896	sc.exe
320	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exermblqvnl.exe

description	pid	process	target process
PID 3052 wrote to memory of 2604	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 2604	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 2604	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 2604	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 2784	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 2784	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 2784	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 2784	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	cmd.exe
PID 3052 wrote to memory of 320	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 320	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 320	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 320	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2544	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2544	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2544	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2544	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2896	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2896	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2896	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 2896	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	sc.exe
PID 3052 wrote to memory of 1708	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	netsh.exe
PID 3052 wrote to memory of 1708	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	netsh.exe
PID 3052 wrote to memory of 1708	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	netsh.exe
PID 3052 wrote to memory of 1708	3052	f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe	netsh.exe
PID 2420 wrote to memory of 2444	2420	rmblqvnl.exe	svchost.exe
PID 2420 wrote to memory of 2444	2420	rmblqvnl.exe	svchost.exe
PID 2420 wrote to memory of 2444	2420	rmblqvnl.exe	svchost.exe
PID 2420 wrote to memory of 2444	2420	rmblqvnl.exe	svchost.exe
PID 2420 wrote to memory of 2444	2420	rmblqvnl.exe	svchost.exe
PID 2420 wrote to memory of 2444	2420	rmblqvnl.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3052

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xaxgqxws\
2⤵
PID:2604

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rmblqvnl.exe" C:\Windows\SysWOW64\xaxgqxws\
2⤵
PID:2784

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xaxgqxws binPath= "C:\Windows\SysWOW64\xaxgqxws\rmblqvnl.exe /d\"C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:320

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xaxgqxws "wifi internet conection"
2⤵
- Launches sc.exe
PID:2544

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xaxgqxws
2⤵
- Launches sc.exe
PID:2896

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:1708

C:\Windows\SysWOW64\xaxgqxws\rmblqvnl.exe
C:\Windows\SysWOW64\xaxgqxws\rmblqvnl.exe /d"C:\Users\Admin\AppData\Local\Temp\f778d016c779877f1621ce4bc8ebbed2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2420

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2444

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

2

T1562

Disable or Modify Tools

1

T1562.001

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\rmblqvnl.exe
Filesize
11.9MB

MD5
13f307037acb4faa170d659e909cadcd

SHA1
cd72422bd905e5515c6e744dc8a8c2e2d0030c15

SHA256
e79cf1a08b57cefc3b9882680757775d060262a1c4dcc2ee4b418b3d9519a5a0

SHA512
296298e483e077e58c6a7d041fc0263b66b4d1c97068e32529968faedb501cb0844c260eb6007d7966a2ec8c04aaf304e7da9ddc8e4faf45052952d468b180bf

Download Submit
memory/2420-8-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2420-15-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2420-9-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2444-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2444-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-4-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/3052-10-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/3052-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/3052-3-0x0000000000220000-0x0000000000233000-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