tofsee | dfc50af3bf552bf40978db35241509f89361556235316756c134991a880b8cea

General

Target

0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe
Size

13.8MB
MD5

0fdbeb853aaefb2dbead07ce8458e08d
SHA1

85aba8325e2277ccf1eb6d409f96f756a61b9d3e
SHA256

dfc50af3bf552bf40978db35241509f89361556235316756c134991a880b8cea
SHA512

e1b193cd81d918af7b6772886cd6beb32b9548bc84798b3efa269040f0159d8fee4d172058995a40cf34a0659c9a89ccd4aa39c205cab844e7f2887fa1327fb2
SSDEEP

49152:lIghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhn:q

Score

10^/10

tofsee discovery 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

2408 netsh.exe

pid	process
2408	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\waedfkev\ImagePath = "C:\\Windows\\SysWOW64\\waedfkev\\jokcadp.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:

0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

760 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

jokcadp.exe

pid process

4660 jokcadp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jokcadp.exe

description pid process target process

PID 4660 set thread context of 760 4660 jokcadp.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

3916 sc.exe
4244 sc.exe
1232 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
760	svchost.exe

pid	process
4660	jokcadp.exe

description	pid	process	target process
PID 4660 set thread context of 760	4660	jokcadp.exe	svchost.exe

pid	process
3916	sc.exe
4244	sc.exe
1232	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 opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4372 3376 WerFault.exe 0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe
2356 4660 WerFault.exe jokcadp.exe

pid	pid_target	process	target process
4372	3376	WerFault.exe	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe
2356	4660	WerFault.exe	jokcadp.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

sc.exenetsh.exesvchost.exe0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.execmd.execmd.exesc.exesc.exejokcadp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jokcadp.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exejokcadp.exe

description	pid	process	target process
PID 3376 wrote to memory of 220	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	cmd.exe
PID 3376 wrote to memory of 220	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	cmd.exe
PID 3376 wrote to memory of 220	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	cmd.exe
PID 3376 wrote to memory of 1896	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	cmd.exe
PID 3376 wrote to memory of 1896	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	cmd.exe
PID 3376 wrote to memory of 1896	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	cmd.exe
PID 3376 wrote to memory of 3916	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 3916	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 3916	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 4244	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 4244	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 4244	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 1232	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 1232	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 1232	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	sc.exe
PID 3376 wrote to memory of 2408	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	netsh.exe
PID 3376 wrote to memory of 2408	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	netsh.exe
PID 3376 wrote to memory of 2408	3376	0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe	netsh.exe
PID 4660 wrote to memory of 760	4660	jokcadp.exe	svchost.exe
PID 4660 wrote to memory of 760	4660	jokcadp.exe	svchost.exe
PID 4660 wrote to memory of 760	4660	jokcadp.exe	svchost.exe
PID 4660 wrote to memory of 760	4660	jokcadp.exe	svchost.exe
PID 4660 wrote to memory of 760	4660	jokcadp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3376

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\waedfkev\
2⤵
- System Location Discovery: System Language Discovery
PID:220

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jokcadp.exe" C:\Windows\SysWOW64\waedfkev\
2⤵
- System Location Discovery: System Language Discovery
PID:1896

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create waedfkev binPath= "C:\Windows\SysWOW64\waedfkev\jokcadp.exe /d\"C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3916

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description waedfkev "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4244

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start waedfkev
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1232

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
- System Location Discovery: System Language Discovery
PID:2408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3376 -s 676
2⤵
- Program crash
PID:4372

C:\Windows\SysWOW64\waedfkev\jokcadp.exe
C:\Windows\SysWOW64\waedfkev\jokcadp.exe /d"C:\Users\Admin\AppData\Local\Temp\0fdbeb853aaefb2dbead07ce8458e08d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4660

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 536
2⤵
- Program crash
PID:2356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3376 -ip 3376
1⤵
PID:3176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4660 -ip 4660
1⤵
PID:908

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4072,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4384 /prefetch:8
1⤵
PID:4704

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
15.0MB

MD5
d64b9b950d556afe5c695cf980aa0320

SHA1
8640ff78bbc179f73c8052d7e19af90188d3bcf6

SHA256
d900dfc18290849ea696684a9d12d34fb091faa6c94c2c273294e93c557056de

SHA512
96cc77615e65fc83955814a74912e914865d2b2553412d10b3c9bc26fc631a10a9eebebf5fca85ff9e33ddf635949f2dd8831d3e7e2cef6b0baf047863b8b918

Download Submit
memory/760-14-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/760-12-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/760-16-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3376-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3376-2-0x0000000000CD0000-0x0000000000CE3000-memory.dmp

Filesize
76KB

Download
memory/3376-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3376-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3376-9-0x0000000000CD0000-0x0000000000CE3000-memory.dmp

Filesize
76KB

Download
memory/3376-1-0x00000000008C0000-0x00000000009C0000-memory.dmp

Filesize
1024KB

Download
memory/4660-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4660-15-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4660-18-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads