tofsee | 2603757f92034678ded0d4e72bbb78f2b29d6f7ee8f809b02d6056750fa579e4

General

Target

00f168270e8ebf2584f151d7cc7236da.exe
Size

11.7MB
MD5

00f168270e8ebf2584f151d7cc7236da
SHA1

527dac58289ec820691048cb320d65c01c193e65
SHA256

2603757f92034678ded0d4e72bbb78f2b29d6f7ee8f809b02d6056750fa579e4
SHA512

184b6b12d02c673dcc6d6c4f478fba8f8a5fd036fc94118ecbd490ef2735d7dd8aeee8132932e3ea43d5a45a02823d3c473a713037a4fd9c871723db6e350837

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

jlgxoipi.exe

pid process

1516 jlgxoipi.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1656 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jlgxoipi.exe

description pid process target process

PID 1516 set thread context of 1656 1516 jlgxoipi.exe svchost.exe
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

pid	process
1516	jlgxoipi.exe

pid	process
1656	svchost.exe

description	pid	process	target process
PID 1516 set thread context of 1656	1516	jlgxoipi.exe	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

00f168270e8ebf2584f151d7cc7236da.exejlgxoipi.exe

description	pid	process	target process
PID 848 wrote to memory of 2000	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 2000	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 2000	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 2000	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 1788	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 1788	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 1788	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 1788	848	00f168270e8ebf2584f151d7cc7236da.exe	cmd.exe
PID 848 wrote to memory of 1488	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1488	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1488	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1488	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1624	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1624	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1624	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1624	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1836	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1836	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1836	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 848 wrote to memory of 1836	848	00f168270e8ebf2584f151d7cc7236da.exe	sc.exe
PID 1516 wrote to memory of 1656	1516	jlgxoipi.exe	svchost.exe
PID 1516 wrote to memory of 1656	1516	jlgxoipi.exe	svchost.exe
PID 1516 wrote to memory of 1656	1516	jlgxoipi.exe	svchost.exe
PID 1516 wrote to memory of 1656	1516	jlgxoipi.exe	svchost.exe
PID 1516 wrote to memory of 1656	1516	jlgxoipi.exe	svchost.exe
PID 1516 wrote to memory of 1656	1516	jlgxoipi.exe	svchost.exe
PID 848 wrote to memory of 616	848	00f168270e8ebf2584f151d7cc7236da.exe	netsh.exe
PID 848 wrote to memory of 616	848	00f168270e8ebf2584f151d7cc7236da.exe	netsh.exe
PID 848 wrote to memory of 616	848	00f168270e8ebf2584f151d7cc7236da.exe	netsh.exe
PID 848 wrote to memory of 616	848	00f168270e8ebf2584f151d7cc7236da.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\00f168270e8ebf2584f151d7cc7236da.exe
"C:\Users\Admin\AppData\Local\Temp\00f168270e8ebf2584f151d7cc7236da.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\adjeuxzu\
2⤵
PID:2000

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlgxoipi.exe" C:\Windows\SysWOW64\adjeuxzu\
2⤵
PID:1788

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create adjeuxzu binPath= "C:\Windows\SysWOW64\adjeuxzu\jlgxoipi.exe /d\"C:\Users\Admin\AppData\Local\Temp\00f168270e8ebf2584f151d7cc7236da.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
PID:1488

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description adjeuxzu "wifi internet conection"
2⤵
PID:1624

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start adjeuxzu
2⤵
PID:1836

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⤵
PID:616

C:\Windows\SysWOW64\adjeuxzu\jlgxoipi.exe
C:\Windows\SysWOW64\adjeuxzu\jlgxoipi.exe /d"C:\Users\Admin\AppData\Local\Temp\00f168270e8ebf2584f151d7cc7236da.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1516

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Deletes itself
PID:1656

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1

T1050

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\jlgxoipi.exe
MD5
4d51681c7dc7475da615b747ca49eb8d

SHA1
489d1d2876d328306e64193266f0ac8452d05c57

SHA256
467247ebe7a0e894fa860503104bbde312c4ed164ff96f2a565550d11d5cfc6a

SHA512
18ebedaad5de946a55b9792a7b322e8282069315285f240bde37e20677efc4ed80ba6f3b11c73dd6762ce00555d6b3750aeb4bb5c9f0408b4cc630ef15707578

Download Submit
C:\Windows\SysWOW64\adjeuxzu\jlgxoipi.exe
MD5
4d51681c7dc7475da615b747ca49eb8d

SHA1
489d1d2876d328306e64193266f0ac8452d05c57

SHA256
467247ebe7a0e894fa860503104bbde312c4ed164ff96f2a565550d11d5cfc6a

SHA512
18ebedaad5de946a55b9792a7b322e8282069315285f240bde37e20677efc4ed80ba6f3b11c73dd6762ce00555d6b3750aeb4bb5c9f0408b4cc630ef15707578

Download Submit
memory/616-12-0x0000000000000000-mapping.dmp

Download
memory/1488-5-0x0000000000000000-mapping.dmp

Download
memory/1624-6-0x0000000000000000-mapping.dmp

Download
memory/1656-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1656-10-0x0000000000089A6B-mapping.dmp

Download
memory/1788-3-0x0000000000000000-mapping.dmp

Download
memory/1836-7-0x0000000000000000-mapping.dmp

Download
memory/2000-2-0x0000000000000000-mapping.dmp

Download

Analysis

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