tofsee | 6a6941267ae0c7a98e3854814083c17dfe43da830acd256a74ac072d8a00a7e8

General

Target

2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe
Size

10.5MB
MD5

5d2e671530ea99e8d6211a1c38fdbbbe
SHA1

26e4576726810b824d299e6b36bf33cbdffa4643
SHA256

6a6941267ae0c7a98e3854814083c17dfe43da830acd256a74ac072d8a00a7e8
SHA512

3ea51bf4ff4ae6ab2aa965f8b4e67379efa8a6c6d7b0e7079deb05b9b526e77605a2d4208b0b9970ad58a247ef7419938f7a422aa163321602670c95cb2b4a54
SSDEEP

6144:A+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:A+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
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

4372 netsh.exe

pid	process
4372	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\iyofxbdf\ImagePath = "C:\\Windows\\SysWOW64\\iyofxbdf\\tsielhm.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4264 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tsielhm.exe

pid process

4124 tsielhm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tsielhm.exe

description pid process target process

PID 4124 set thread context of 4264 4124 tsielhm.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

4064 sc.exe
3456 sc.exe
1996 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4264	svchost.exe

pid	process
4124	tsielhm.exe

description	pid	process	target process
PID 4124 set thread context of 4264	4124	tsielhm.exe	svchost.exe

pid	process
4064	sc.exe
3456	sc.exe
1996	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 23 IoCs

Processes:

2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exetsielhm.exe

description	pid	process	target process
PID 4608 wrote to memory of 992	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	cmd.exe
PID 4608 wrote to memory of 992	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	cmd.exe
PID 4608 wrote to memory of 992	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	cmd.exe
PID 4608 wrote to memory of 2652	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	cmd.exe
PID 4608 wrote to memory of 2652	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	cmd.exe
PID 4608 wrote to memory of 2652	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	cmd.exe
PID 4608 wrote to memory of 1996	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 1996	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 1996	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 4064	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 4064	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 4064	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 3456	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 3456	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 3456	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	sc.exe
PID 4608 wrote to memory of 4372	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	netsh.exe
PID 4608 wrote to memory of 4372	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	netsh.exe
PID 4608 wrote to memory of 4372	4608	2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe	netsh.exe
PID 4124 wrote to memory of 4264	4124	tsielhm.exe	svchost.exe
PID 4124 wrote to memory of 4264	4124	tsielhm.exe	svchost.exe
PID 4124 wrote to memory of 4264	4124	tsielhm.exe	svchost.exe
PID 4124 wrote to memory of 4264	4124	tsielhm.exe	svchost.exe
PID 4124 wrote to memory of 4264	4124	tsielhm.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4608

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iyofxbdf\
2⤵
PID:992

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tsielhm.exe" C:\Windows\SysWOW64\iyofxbdf\
2⤵
PID:2652

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create iyofxbdf binPath= "C:\Windows\SysWOW64\iyofxbdf\tsielhm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1996

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description iyofxbdf "wifi internet conection"
2⤵
- Launches sc.exe
PID:4064

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start iyofxbdf
2⤵
- Launches sc.exe
PID:3456

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:4372

C:\Windows\SysWOW64\iyofxbdf\tsielhm.exe
C:\Windows\SysWOW64\iyofxbdf\tsielhm.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-07-01_5d2e671530ea99e8d6211a1c38fdbbbe_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4124

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4264

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tsielhm.exe
Filesize
12.0MB

MD5
182262416dbe7164ce66b2584c980409

SHA1
18b308155c78b45ae72b18fa151232a156bfdb75

SHA256
b12df06b3cd14f1a7ac93224fdf6d9d23a63a7fbe4615b28ba6ea9b9ea413d25

SHA512
2d9dced1884012a534219961ea7506d0f1da620c9e084e6d9e28ca52f8386bb66c32bc888c6eccc100f46489f81f483ce15d57e23d1da9db31428c4cbf07d749

Download Submit
memory/4124-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4124-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4124-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4264-16-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/4264-14-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/4264-11-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/4608-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4608-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/4608-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4608-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads