tofsee | 0d371a108223b043a6f04373b049548bbf1ea70acb13235bf38746f3b95e4743

General

Target

202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe
Size

14.2MB
MD5

8c3fa6fe70a4c5270a2b9c86d874d0cb
SHA1

c6ef5d44c3822e21c25e272eb9cd287485972ad0
SHA256

0d371a108223b043a6f04373b049548bbf1ea70acb13235bf38746f3b95e4743
SHA512

c2e3548eef8fef1b1f0b9ee77c9d91baa08ffca1def580f0eadd31b4b0793e60ea78004f381fe7e0d446603a754befad9b6ba730369043c73ae9589cb5a50251
SSDEEP

6144:/+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:/+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee evasion execution persistence 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
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

2684 netsh.exe

pid	process
2684	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\lnzvfalf\ImagePath = "C:\\Windows\\SysWOW64\\lnzvfalf\\pcqtvvtg.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3032 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

pcqtvvtg.exe

pid process

2672 pcqtvvtg.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

pcqtvvtg.exe

description pid process target process

PID 2672 set thread context of 3032 2672 pcqtvvtg.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

2664 sc.exe
2644 sc.exe
2320 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3032	svchost.exe

pid	process
2672	pcqtvvtg.exe

description	pid	process	target process
PID 2672 set thread context of 3032	2672	pcqtvvtg.exe	svchost.exe

pid	process
2664	sc.exe
2644	sc.exe
2320	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exepcqtvvtg.exe

description	pid	process	target process
PID 2024 wrote to memory of 1660	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 1660	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 1660	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 1660	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 1608	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 1608	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 1608	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 1608	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	cmd.exe
PID 2024 wrote to memory of 2320	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2320	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2320	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2320	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2664	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2664	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2664	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2664	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2644	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2644	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2644	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2024 wrote to memory of 2644	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	sc.exe
PID 2672 wrote to memory of 3032	2672	pcqtvvtg.exe	svchost.exe
PID 2672 wrote to memory of 3032	2672	pcqtvvtg.exe	svchost.exe
PID 2672 wrote to memory of 3032	2672	pcqtvvtg.exe	svchost.exe
PID 2672 wrote to memory of 3032	2672	pcqtvvtg.exe	svchost.exe
PID 2672 wrote to memory of 3032	2672	pcqtvvtg.exe	svchost.exe
PID 2672 wrote to memory of 3032	2672	pcqtvvtg.exe	svchost.exe
PID 2024 wrote to memory of 2684	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	netsh.exe
PID 2024 wrote to memory of 2684	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	netsh.exe
PID 2024 wrote to memory of 2684	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	netsh.exe
PID 2024 wrote to memory of 2684	2024	202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe
"C:\Users\Admin\AppData\Local\Temp\202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lnzvfalf\
2⤵
PID:1660

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pcqtvvtg.exe" C:\Windows\SysWOW64\lnzvfalf\
2⤵
PID:1608

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create lnzvfalf binPath= "C:\Windows\SysWOW64\lnzvfalf\pcqtvvtg.exe /d\"C:\Users\Admin\AppData\Local\Temp\202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2320

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description lnzvfalf "wifi internet conection"
2⤵
- Launches sc.exe
PID:2664

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start lnzvfalf
2⤵
- Launches sc.exe
PID:2644

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:2684

C:\Windows\SysWOW64\lnzvfalf\pcqtvvtg.exe
C:\Windows\SysWOW64\lnzvfalf\pcqtvvtg.exe /d"C:\Users\Admin\AppData\Local\Temp\202406158c3fa6fe70a4c5270a2b9c86d874d0cbmafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2672

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:3032

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

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

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
10.2MB

MD5
3b0ab7bb31ff60dc65a1e1b3cc7803de

SHA1
8ce025673c2ca2501e23d1a5f61058ded109816e

SHA256
8ee575d43876a8888e6fc21d508c115a5cdfaafd51413f88ce1ff2fb09f7ccb5

SHA512
4e8849c6d0acb0d442f012a39cbf3e9b1a77c95e991772c2f1e8562c373ed686b8137f98e0f3312fa5698ce9b643ad7238234ac9ea831a99b5fd6b4e79b52935

Download Submit
memory/2024-2-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2024-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2672-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3032-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3032-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3032-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3032-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3032-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads