tofsee | 55eb0162f40757a5f2183e8bea7f3914f28830bcc01e41ccb87709fc5c82e599

General

Target

2024-06-26_63d4972da8508414258d10652266b321_mafia.exe
Size

14.3MB
MD5

63d4972da8508414258d10652266b321
SHA1

f21948cf071c65e274ccda5d7f5f24692f094f22
SHA256

55eb0162f40757a5f2183e8bea7f3914f28830bcc01e41ccb87709fc5c82e599
SHA512

7167f8e04a409a8f913cd9a4f896154a31d152fd53f998af56b3fd9bb7771a2afef0189a4c702f99b1ecf47f8d34ea2de99a1b5dc14b84df946d0b8f73c0784d
SSDEEP

6144:P+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:P+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\jvtblyqh = "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

2572 netsh.exe

pid	process
2572	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\jvtblyqh\ImagePath = "C:\\Windows\\SysWOW64\\jvtblyqh\\ccbhsgnq.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1500 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ccbhsgnq.exe

pid process

2656 ccbhsgnq.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ccbhsgnq.exe

description pid process target process

PID 2656 set thread context of 1500 2656 ccbhsgnq.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

2540 sc.exe
2644 sc.exe
2536 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1500	svchost.exe

pid	process
2656	ccbhsgnq.exe

description	pid	process	target process
PID 2656 set thread context of 1500	2656	ccbhsgnq.exe	svchost.exe

pid	process
2540	sc.exe
2644	sc.exe
2536	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-06-26_63d4972da8508414258d10652266b321_mafia.execcbhsgnq.exe

description	pid	process	target process
PID 2196 wrote to memory of 2960	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2960	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2960	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2960	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2912	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2912	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2912	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2912	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	cmd.exe
PID 2196 wrote to memory of 2540	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2540	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2540	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2540	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2644	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2644	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2644	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2644	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2536	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2536	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2536	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2536	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	sc.exe
PID 2196 wrote to memory of 2572	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	netsh.exe
PID 2196 wrote to memory of 2572	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	netsh.exe
PID 2196 wrote to memory of 2572	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	netsh.exe
PID 2196 wrote to memory of 2572	2196	2024-06-26_63d4972da8508414258d10652266b321_mafia.exe	netsh.exe
PID 2656 wrote to memory of 1500	2656	ccbhsgnq.exe	svchost.exe
PID 2656 wrote to memory of 1500	2656	ccbhsgnq.exe	svchost.exe
PID 2656 wrote to memory of 1500	2656	ccbhsgnq.exe	svchost.exe
PID 2656 wrote to memory of 1500	2656	ccbhsgnq.exe	svchost.exe
PID 2656 wrote to memory of 1500	2656	ccbhsgnq.exe	svchost.exe
PID 2656 wrote to memory of 1500	2656	ccbhsgnq.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-26_63d4972da8508414258d10652266b321_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-26_63d4972da8508414258d10652266b321_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2196

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jvtblyqh\
2⤵
PID:2960

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ccbhsgnq.exe" C:\Windows\SysWOW64\jvtblyqh\
2⤵
PID:2912

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create jvtblyqh binPath= "C:\Windows\SysWOW64\jvtblyqh\ccbhsgnq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-26_63d4972da8508414258d10652266b321_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2540

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description jvtblyqh "wifi internet conection"
2⤵
- Launches sc.exe
PID:2644

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start jvtblyqh
2⤵
- Launches sc.exe
PID:2536

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:2572

C:\Windows\SysWOW64\jvtblyqh\ccbhsgnq.exe
C:\Windows\SysWOW64\jvtblyqh\ccbhsgnq.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-26_63d4972da8508414258d10652266b321_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2656

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:1500

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\ccbhsgnq.exe

Filesize
13.6MB

MD5
4f01d55cdfef16d3ee9d6f2b7685e5d0

SHA1
f5acec53c35131683e28762bd5bcb48762e57701

SHA256
fafeff4c73bb887478087a48d66a8221809e5cd4dc643e92397a3fa00fe6036a

SHA512
769f8136bfa77baf50ed7c5ea301dcc026b1a5609588de1968a69a63d04fa6795f1e11ca339bdc39572a51e410538d706dde7793e2b4a62afe33e9af370c0b5d

Download Submit
memory/1500-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1500-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1500-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1500-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1500-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2196-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/2196-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2196-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2196-7-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2656-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads