tofsee | c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16

General

Target

c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe
Size

13.7MB
MD5

5408cff5586901cfb35b5ed13505c161
SHA1

e929d7dc906bdc0eb20c4009b085443bc7af996f
SHA256

c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16
SHA512

f1f6bde7b47b13da6ede09ae7e25e1ac5444880cea3ed2bbad2a806ae7e80393998670febb7bbc0bd0221a3a9ce741b2a39ad7199ad561061e0545ae0966558c

Score

10^/10

tofsee evasion 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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\fboteabs = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

ydnicoln.exe

pid process

336 ydnicoln.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

672 netsh.exe

pid	process
336	ydnicoln.exe

pid	process
672	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\fboteabs\ImagePath = "C:\\Windows\\SysWOW64\\fboteabs\\ydnicoln.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1084 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ydnicoln.exe

description pid process target process

PID 336 set thread context of 1084 336 ydnicoln.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

2032 sc.exe
1408 sc.exe
1808 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1084	svchost.exe

description	pid	process	target process
PID 336 set thread context of 1084	336	ydnicoln.exe	svchost.exe

pid	process
2032	sc.exe
1408	sc.exe
1808	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exeydnicoln.exe

description	pid	process	target process
PID 1376 wrote to memory of 1932	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 1932	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 1932	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 1932	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 1720	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 1720	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 1720	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 1720	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	cmd.exe
PID 1376 wrote to memory of 2032	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 2032	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 2032	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 2032	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1408	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1408	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1408	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1408	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1808	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1808	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1808	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 1808	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	sc.exe
PID 1376 wrote to memory of 672	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	netsh.exe
PID 1376 wrote to memory of 672	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	netsh.exe
PID 1376 wrote to memory of 672	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	netsh.exe
PID 1376 wrote to memory of 672	1376	c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe	netsh.exe
PID 336 wrote to memory of 1084	336	ydnicoln.exe	svchost.exe
PID 336 wrote to memory of 1084	336	ydnicoln.exe	svchost.exe
PID 336 wrote to memory of 1084	336	ydnicoln.exe	svchost.exe
PID 336 wrote to memory of 1084	336	ydnicoln.exe	svchost.exe
PID 336 wrote to memory of 1084	336	ydnicoln.exe	svchost.exe
PID 336 wrote to memory of 1084	336	ydnicoln.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe
"C:\Users\Admin\AppData\Local\Temp\c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1376

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fboteabs\
2⤵
PID:1932

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ydnicoln.exe" C:\Windows\SysWOW64\fboteabs\
2⤵
PID:1720

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create fboteabs binPath= "C:\Windows\SysWOW64\fboteabs\ydnicoln.exe /d\"C:\Users\Admin\AppData\Local\Temp\c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2032

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description fboteabs "wifi internet conection"
2⤵
- Launches sc.exe
PID:1408

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start fboteabs
2⤵
- Launches sc.exe
PID:1808

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:672

C:\Windows\SysWOW64\fboteabs\ydnicoln.exe
C:\Windows\SysWOW64\fboteabs\ydnicoln.exe /d"C:\Users\Admin\AppData\Local\Temp\c5af074d1dc7563538561414790ce838b29a04f80c877a0d3e235b83a2130d16.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:336

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1084

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ydnicoln.exe
Filesize
10.1MB

MD5
5499e38f55c2ed605762d0aff1bd38c9

SHA1
6d4109d1959d18555ecdee7b4af03450d2183efc

SHA256
441e4f2f0690aeb60caeef2c9c9cd9ec68de54ebdffe8bc84dda02736da929c8

SHA512
b9b0789031173e403d29846798deb3c122b841345de57b7e98d20f836facb1d077d69040f4556b51948d6937cea89c76f44d9aef3a47082a3c536a361d22c8f4

Download Submit
C:\Windows\SysWOW64\fboteabs\ydnicoln.exe
Filesize
10.1MB

MD5
5499e38f55c2ed605762d0aff1bd38c9

SHA1
6d4109d1959d18555ecdee7b4af03450d2183efc

SHA256
441e4f2f0690aeb60caeef2c9c9cd9ec68de54ebdffe8bc84dda02736da929c8

SHA512
b9b0789031173e403d29846798deb3c122b841345de57b7e98d20f836facb1d077d69040f4556b51948d6937cea89c76f44d9aef3a47082a3c536a361d22c8f4

Download Submit
memory/336-74-0x0000000000D2B000-0x0000000000D39000-memory.dmp

Filesize
56KB

Download
memory/336-77-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/672-65-0x0000000000000000-mapping.dmp

Download
memory/1084-72-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1084-70-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1084-80-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1084-79-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1084-73-0x0000000000089A6B-mapping.dmp

Download
memory/1376-54-0x0000000075361000-0x0000000075363000-memory.dmp

Filesize
8KB

Download
memory/1376-66-0x0000000000CFB000-0x0000000000D09000-memory.dmp

Filesize
56KB

Download
memory/1376-67-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/1376-57-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1376-58-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/1376-56-0x0000000000CFB000-0x0000000000D09000-memory.dmp

Filesize
56KB

Download
memory/1408-62-0x0000000000000000-mapping.dmp

Download
memory/1720-59-0x0000000000000000-mapping.dmp

Download
memory/1808-63-0x0000000000000000-mapping.dmp

Download
memory/1932-55-0x0000000000000000-mapping.dmp

Download
memory/2032-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads