tofsee | 95829a10f0e9545aad05bdc05e8cc23a78789aec86a2e280e343721fd9ad0014

General

Target

8a464a50bc9eb0ccbcae6b9268bb6c30.exe
Size

12.2MB
MD5

8a464a50bc9eb0ccbcae6b9268bb6c30
SHA1

56971bd6026dc018efd0e32e44a4731b0b1c906f
SHA256

95829a10f0e9545aad05bdc05e8cc23a78789aec86a2e280e343721fd9ad0014
SHA512

5b3b034abd6d5304ffe774fac5a2255b4f57d926b197c9d0c2d07656db2bfc160e17b3b4d764a069eea6b06e343d003b032364f22f7749ee7061b1a05b29449a
SSDEEP

6144:X+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:X+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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\pbrpzjv = "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

2700 netsh.exe

pid	process
2700	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\pbrpzjv\ImagePath = "C:\\Windows\\SysWOW64\\pbrpzjv\\xohkreqp.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2456 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

xohkreqp.exe

pid process

2868 xohkreqp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

xohkreqp.exe

description pid process target process

PID 2868 set thread context of 2456 2868 xohkreqp.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

2716 sc.exe
2532 sc.exe
3068 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2456	svchost.exe

pid	process
2868	xohkreqp.exe

description	pid	process	target process
PID 2868 set thread context of 2456	2868	xohkreqp.exe	svchost.exe

pid	process
2716	sc.exe
2532	sc.exe
3068	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:

8a464a50bc9eb0ccbcae6b9268bb6c30.exexohkreqp.exe

description	pid	process	target process
PID 3048 wrote to memory of 1736	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 1736	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 1736	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 1736	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 2764	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 2764	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 2764	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 2764	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	cmd.exe
PID 3048 wrote to memory of 3068	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 3068	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 3068	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 3068	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2716	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2716	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2716	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2716	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2532	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2532	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2532	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2532	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	sc.exe
PID 3048 wrote to memory of 2700	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	netsh.exe
PID 3048 wrote to memory of 2700	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	netsh.exe
PID 3048 wrote to memory of 2700	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	netsh.exe
PID 3048 wrote to memory of 2700	3048	8a464a50bc9eb0ccbcae6b9268bb6c30.exe	netsh.exe
PID 2868 wrote to memory of 2456	2868	xohkreqp.exe	svchost.exe
PID 2868 wrote to memory of 2456	2868	xohkreqp.exe	svchost.exe
PID 2868 wrote to memory of 2456	2868	xohkreqp.exe	svchost.exe
PID 2868 wrote to memory of 2456	2868	xohkreqp.exe	svchost.exe
PID 2868 wrote to memory of 2456	2868	xohkreqp.exe	svchost.exe
PID 2868 wrote to memory of 2456	2868	xohkreqp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\8a464a50bc9eb0ccbcae6b9268bb6c30.exe
"C:\Users\Admin\AppData\Local\Temp\8a464a50bc9eb0ccbcae6b9268bb6c30.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3048

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pbrpzjv\
2⤵
PID:1736

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xohkreqp.exe" C:\Windows\SysWOW64\pbrpzjv\
2⤵
PID:2764

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pbrpzjv binPath= "C:\Windows\SysWOW64\pbrpzjv\xohkreqp.exe /d\"C:\Users\Admin\AppData\Local\Temp\8a464a50bc9eb0ccbcae6b9268bb6c30.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3068

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pbrpzjv "wifi internet conection"
2⤵
- Launches sc.exe
PID:2716

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pbrpzjv
2⤵
- Launches sc.exe
PID:2532

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:2700

C:\Windows\SysWOW64\pbrpzjv\xohkreqp.exe
C:\Windows\SysWOW64\pbrpzjv\xohkreqp.exe /d"C:\Users\Admin\AppData\Local\Temp\8a464a50bc9eb0ccbcae6b9268bb6c30.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2868

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2456

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\xohkreqp.exe
Filesize
13.6MB

MD5
e1221d59a175b6fe85c4b04e9d5249ac

SHA1
fa58d48093749dbeae0f9db490b51eb9075ce891

SHA256
d011b2d55937a95146391aee7636e3a6782a22d30af638dcbd95c20823839e24

SHA512
e1c54ce4301305f13d0c1b399a2782841c3d0e51db5e4b69596a5c4e47639d995b3b2710d159f842c46e689169fc8fc26179ad516d2975c32540d64db7f24a47

Download Submit
memory/2456-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2456-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2456-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2456-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2456-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-14-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3048-1-0x00000000006F0000-0x00000000007F0000-memory.dmp

Filesize
1024KB

Download
memory/3048-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-7-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads