tofsee | 191eb74169c214f047b6b9efb8c28e18e1af40b91ac91ab5f6071c4735505e43

General

Target

2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe
Size

11.3MB
MD5

dea97f9022f1e5e44f150eea8375c8a9
SHA1

bd4e36d5791b595d381bc2d2a4816710a54aad39
SHA256

191eb74169c214f047b6b9efb8c28e18e1af40b91ac91ab5f6071c4735505e43
SHA512

d5f0166d3dc07c458ff5b1f73e2d510908fb6a001e090b6153cac7290e1a2b6fff628d9ee290f0bb77608b047bfce200647e07b0f5534049b4d8da1e97a4d831
SSDEEP

6144:4+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:4+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\pflndren = "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

2520 netsh.exe

pid	process
2520	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\pflndren\ImagePath = "C:\\Windows\\SysWOW64\\pflndren\\tannqbto.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2504 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tannqbto.exe

pid process

2664 tannqbto.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tannqbto.exe

description pid process target process

PID 2664 set thread context of 2504 2664 tannqbto.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

1800 sc.exe
2736 sc.exe
2636 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2504	svchost.exe

pid	process
2664	tannqbto.exe

description	pid	process	target process
PID 2664 set thread context of 2504	2664	tannqbto.exe	svchost.exe

pid	process
1800	sc.exe
2736	sc.exe
2636	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:

2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exetannqbto.exe

description	pid	process	target process
PID 2944 wrote to memory of 2304	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2304	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2304	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2304	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2620	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2620	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2620	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2620	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 2944 wrote to memory of 2636	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2636	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2636	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2636	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 1800	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 1800	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 1800	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 1800	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2736	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2736	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2736	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2736	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 2944 wrote to memory of 2520	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	netsh.exe
PID 2944 wrote to memory of 2520	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	netsh.exe
PID 2944 wrote to memory of 2520	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	netsh.exe
PID 2944 wrote to memory of 2520	2944	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	netsh.exe
PID 2664 wrote to memory of 2504	2664	tannqbto.exe	svchost.exe
PID 2664 wrote to memory of 2504	2664	tannqbto.exe	svchost.exe
PID 2664 wrote to memory of 2504	2664	tannqbto.exe	svchost.exe
PID 2664 wrote to memory of 2504	2664	tannqbto.exe	svchost.exe
PID 2664 wrote to memory of 2504	2664	tannqbto.exe	svchost.exe
PID 2664 wrote to memory of 2504	2664	tannqbto.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2944

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pflndren\
2⤵
PID:2304

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tannqbto.exe" C:\Windows\SysWOW64\pflndren\
2⤵
PID:2620

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pflndren binPath= "C:\Windows\SysWOW64\pflndren\tannqbto.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2636

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pflndren "wifi internet conection"
2⤵
- Launches sc.exe
PID:1800

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pflndren
2⤵
- Launches sc.exe
PID:2736

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:2520

C:\Windows\SysWOW64\pflndren\tannqbto.exe
C:\Windows\SysWOW64\pflndren\tannqbto.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2504

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\tannqbto.exe

Filesize
14.4MB

MD5
1b305d4f0e5adbef62b156fb78795f1c

SHA1
0fdef5edccd1ad0296c475d8582e0e80f3e48bab

SHA256
1191b5bd620e6ad266bbec8b18c61f2a7b91ea2efaca639115d1ffbbb8e5823c

SHA512
de084e22d7c3d80b0c0bc62cc27cd5e6da571693889ec58c1d03959596b1f701e57ad38b5391b3af1c6dcdef0742a8e3d8aab27f35cef91573f1663d8e2f0fe3

Download Submit
memory/2504-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2504-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2504-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2504-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2504-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-14-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2944-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2944-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2944-5-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2944-6-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads