tofsee | 0b827bbdc981c850683d5ec4fd095438f962ed6151e05537855008ff79d045c2

General

Target

0151396c13b5bc6865551434163d108c_JaffaCakes118.exe
Size

11.7MB
MD5

0151396c13b5bc6865551434163d108c
SHA1

662f732341113522d951ccb10e0bbe8af7719d21
SHA256

0b827bbdc981c850683d5ec4fd095438f962ed6151e05537855008ff79d045c2
SHA512

c94bc7bc0faa5a6ccddc0dfec21c188de3c0625a8d85162a3531e7f07de11effde1b730c8e11b60a6df9aea2a325194bffc703c5860e6e9b3f55406f17d942ff
SSDEEP

12288:gZDHr9j8gEh4CFNUBCWwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA:gVHrGc

Score

10^/10

tofsee evasion execution persistence privilege_escalation 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) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

1436 netsh.exe

pid	process
1436	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\ylveaunu\ImagePath = "C:\\Windows\\SysWOW64\\ylveaunu\\coaiitiq.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:

0151396c13b5bc6865551434163d108c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3284 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

coaiitiq.exe

pid process

4208 coaiitiq.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

coaiitiq.exe

description pid process target process

PID 4208 set thread context of 3284 4208 coaiitiq.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

2780 sc.exe
4064 sc.exe
1092 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3284	svchost.exe

pid	process
4208	coaiitiq.exe

description	pid	process	target process
PID 4208 set thread context of 3284	4208	coaiitiq.exe	svchost.exe

pid	process
2780	sc.exe
4064	sc.exe
1092	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4616 808 WerFault.exe 0151396c13b5bc6865551434163d108c_JaffaCakes118.exe
1144 4208 WerFault.exe coaiitiq.exe

pid	pid_target	process	target process
4616	808	WerFault.exe	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe
1144	4208	WerFault.exe	coaiitiq.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

0151396c13b5bc6865551434163d108c_JaffaCakes118.execoaiitiq.exe

description	pid	process	target process
PID 808 wrote to memory of 1524	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	cmd.exe
PID 808 wrote to memory of 1524	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	cmd.exe
PID 808 wrote to memory of 1524	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	cmd.exe
PID 808 wrote to memory of 3400	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	cmd.exe
PID 808 wrote to memory of 3400	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	cmd.exe
PID 808 wrote to memory of 3400	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	cmd.exe
PID 808 wrote to memory of 2780	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 2780	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 2780	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 4064	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 4064	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 4064	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 1092	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 1092	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 1092	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	sc.exe
PID 808 wrote to memory of 1436	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	netsh.exe
PID 808 wrote to memory of 1436	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	netsh.exe
PID 808 wrote to memory of 1436	808	0151396c13b5bc6865551434163d108c_JaffaCakes118.exe	netsh.exe
PID 4208 wrote to memory of 3284	4208	coaiitiq.exe	svchost.exe
PID 4208 wrote to memory of 3284	4208	coaiitiq.exe	svchost.exe
PID 4208 wrote to memory of 3284	4208	coaiitiq.exe	svchost.exe
PID 4208 wrote to memory of 3284	4208	coaiitiq.exe	svchost.exe
PID 4208 wrote to memory of 3284	4208	coaiitiq.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0151396c13b5bc6865551434163d108c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0151396c13b5bc6865551434163d108c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:808

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ylveaunu\
2⤵
PID:1524

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\coaiitiq.exe" C:\Windows\SysWOW64\ylveaunu\
2⤵
PID:3400

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ylveaunu binPath= "C:\Windows\SysWOW64\ylveaunu\coaiitiq.exe /d\"C:\Users\Admin\AppData\Local\Temp\0151396c13b5bc6865551434163d108c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2780

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ylveaunu "wifi internet conection"
2⤵
- Launches sc.exe
PID:4064

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ylveaunu
2⤵
- Launches sc.exe
PID:1092

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
- Event Triggered Execution: Netsh Helper DLL
PID:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 784
2⤵
- Program crash
PID:4616

C:\Windows\SysWOW64\ylveaunu\coaiitiq.exe
C:\Windows\SysWOW64\ylveaunu\coaiitiq.exe /d"C:\Users\Admin\AppData\Local\Temp\0151396c13b5bc6865551434163d108c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4208

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:3284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4208 -s 508
2⤵
- Program crash
PID:1144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 808 -ip 808
1⤵
PID:3464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4208 -ip 4208
1⤵
PID:4468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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\coaiitiq.exe

Filesize
11.7MB

MD5
ab09c6e4843198da2e05a172bc8349d8

SHA1
3fdaa3b6cc5cb4b3bbabb8b0113acccda4ad36e3

SHA256
a0dd570210428647823fbcaa22f5c60945ec8234bda838d6c366259f1265d445

SHA512
84ed8031ef42492c990001fae95ad4cb7c40a976a5317a1f00a71acf51f37c7ebafed80ab2ec12693f8b77d36a44fd1e7aa45957f86db24630ac7725b54d3c10

Download Submit
memory/808-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/808-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/808-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/808-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/808-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/808-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/3284-13-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/3284-15-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/3284-16-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/4208-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4208-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4208-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads