tofsee | 0f9ab2429ef2e90dc55a1b537175c2e5c4be200de90cec04e5c66c68513b3d5a

General

Target

555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe
Size

11.4MB
MD5

555a84e13bf2fc3192ed64aa2fe51316
SHA1

d3edbb5d9ab41f575430e7f6e6bad604bce847d0
SHA256

0f9ab2429ef2e90dc55a1b537175c2e5c4be200de90cec04e5c66c68513b3d5a
SHA512

514ab8a31137bc584a9183d750db08e69befcf9aac2ac74c72444e2650d3eb3618f127c24039a6a40d16c4af94ee1052974736481ecdd0df75d92be3d115b1e3
SSDEEP

6144:pxU32BT0jz22222222222222222222222222222222222222222222222222222/:bUmK

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

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\evtmdzod = "0"	svchost.exe

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

2620 netsh.exe

pid	process
2620	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\evtmdzod\ImagePath = "C:\\Windows\\SysWOW64\\evtmdzod\\wmhtnzdv.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1864 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wmhtnzdv.exe

pid process

2804 wmhtnzdv.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wmhtnzdv.exe

description pid process target process

PID 2804 set thread context of 1864 2804 wmhtnzdv.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

2852 sc.exe
2848 sc.exe
2776 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1864	svchost.exe

pid	process
2804	wmhtnzdv.exe

description	pid	process	target process
PID 2804 set thread context of 1864	2804	wmhtnzdv.exe	svchost.exe

pid	process
2852	sc.exe
2848	sc.exe
2776	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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exewmhtnzdv.exe

description	pid	process	target process
PID 2228 wrote to memory of 2756	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2756	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2756	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2756	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2888	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2888	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2888	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2888	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2852	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2852	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2852	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2852	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2848	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2848	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2848	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2848	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2776	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2776	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2776	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2776	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2620	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	netsh.exe
PID 2228 wrote to memory of 2620	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	netsh.exe
PID 2228 wrote to memory of 2620	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	netsh.exe
PID 2228 wrote to memory of 2620	2228	555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe	netsh.exe
PID 2804 wrote to memory of 1864	2804	wmhtnzdv.exe	svchost.exe
PID 2804 wrote to memory of 1864	2804	wmhtnzdv.exe	svchost.exe
PID 2804 wrote to memory of 1864	2804	wmhtnzdv.exe	svchost.exe
PID 2804 wrote to memory of 1864	2804	wmhtnzdv.exe	svchost.exe
PID 2804 wrote to memory of 1864	2804	wmhtnzdv.exe	svchost.exe
PID 2804 wrote to memory of 1864	2804	wmhtnzdv.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2228

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\evtmdzod\
2⤵
PID:2756

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wmhtnzdv.exe" C:\Windows\SysWOW64\evtmdzod\
2⤵
PID:2888

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create evtmdzod binPath= "C:\Windows\SysWOW64\evtmdzod\wmhtnzdv.exe /d\"C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2852

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description evtmdzod "wifi internet conection"
2⤵
- Launches sc.exe
PID:2848

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start evtmdzod
2⤵
- Launches sc.exe
PID:2776

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:2620

C:\Windows\SysWOW64\evtmdzod\wmhtnzdv.exe
C:\Windows\SysWOW64\evtmdzod\wmhtnzdv.exe /d"C:\Users\Admin\AppData\Local\Temp\555a84e13bf2fc3192ed64aa2fe51316_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2804

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1864

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\wmhtnzdv.exe
Filesize
11.7MB

MD5
967c0812b05912d053644ea51e292050

SHA1
43141c476afdd950a32586613be512d1c97d0c21

SHA256
2bba4ce7e8d2478ada35f495bc3f990b28ed95bb40d0ff663a581ce158e5981f

SHA512
0702c06d69ff2b7e7db7d3cba089d1b59be60db1b57a1a1000c82d58b15f3679207edc3bb732570398a81e3b5f55836b647afd0787e61653686fe28c8432d67a

Download Submit
memory/1864-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1864-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1864-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1864-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1864-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2228-1-0x0000000000910000-0x0000000000A10000-memory.dmp

Filesize
1024KB

Download
memory/2228-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2228-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2228-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2228-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2804-14-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads