tofsee | 1bbf4d3f017661eb57be195c6c53319731eb6c36aee2ddecf39b53ec91bcfdb2

Analysis

max time kernel
148s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 22:16

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General

Target

2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe
Size

13.8MB
MD5

9c51a91c066c0450f73e9094bff5b3d4
SHA1

69443b3cd6392afd4d9abd4191cc83979fbf1cf5
SHA256

1bbf4d3f017661eb57be195c6c53319731eb6c36aee2ddecf39b53ec91bcfdb2
SHA512

2eaabc50c4f270dbd8e9bb93221456fb1270ceda504b127765679eda4403c4c6efae4a18ed79fc1780acc885fd29b5e676479858a3a962a680941f0324fcca84
SSDEEP

49152:AVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG3:AVdrl/9zG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\efvxghaw = "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

pid	Process
2564	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\efvxghaw\ImagePath = "C:\\Windows\\SysWOW64\\efvxghaw\\pcqtvvtg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	pcqtvvtg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2816	2828	pcqtvvtg.exe	43

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2964	sc.exe
2952	sc.exe
2796	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pcqtvvtg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1932	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	30
PID 2052 wrote to memory of 1932	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	30
PID 2052 wrote to memory of 1932	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	30
PID 2052 wrote to memory of 1932	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	30
PID 2052 wrote to memory of 320	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	32
PID 2052 wrote to memory of 320	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	32
PID 2052 wrote to memory of 320	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	32
PID 2052 wrote to memory of 320	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	32
PID 2052 wrote to memory of 2796	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	34
PID 2052 wrote to memory of 2796	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	34
PID 2052 wrote to memory of 2796	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	34
PID 2052 wrote to memory of 2796	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	34
PID 2052 wrote to memory of 2964	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	36
PID 2052 wrote to memory of 2964	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	36
PID 2052 wrote to memory of 2964	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	36
PID 2052 wrote to memory of 2964	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	36
PID 2052 wrote to memory of 2952	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	38
PID 2052 wrote to memory of 2952	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	38
PID 2052 wrote to memory of 2952	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	38
PID 2052 wrote to memory of 2952	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	38
PID 2052 wrote to memory of 2564	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	41
PID 2052 wrote to memory of 2564	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	41
PID 2052 wrote to memory of 2564	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	41
PID 2052 wrote to memory of 2564	2052	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	41
PID 2828 wrote to memory of 2816	2828	pcqtvvtg.exe	43
PID 2828 wrote to memory of 2816	2828	pcqtvvtg.exe	43
PID 2828 wrote to memory of 2816	2828	pcqtvvtg.exe	43
PID 2828 wrote to memory of 2816	2828	pcqtvvtg.exe	43
PID 2828 wrote to memory of 2816	2828	pcqtvvtg.exe	43
PID 2828 wrote to memory of 2816	2828	pcqtvvtg.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\efvxghaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pcqtvvtg.exe" C:\Windows\SysWOW64\efvxghaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create efvxghaw binPath= "C:\Windows\SysWOW64\efvxghaw\pcqtvvtg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description efvxghaw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start efvxghaw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2952
- 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
  - System Location Discovery: System Language Discovery
  PID:2564

C:\Windows\SysWOW64\efvxghaw\pcqtvvtg.exe
C:\Windows\SysWOW64\efvxghaw\pcqtvvtg.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\pcqtvvtg.exe

Filesize
10.9MB

MD5
5f215099f12613b137efea720fb506b1

SHA1
61cef63ccbcab011b186f97548e5d2321740e6e1

SHA256
949a222c76ccf98578469d149852ea48f09721335c290428601ea7f7d1ad71d3

SHA512
768cb3e399dc411144444102b59cdfc81235c1ddea28a576c31b636be7dd115be706a887efb41b4d520636247377fabdf9fc258dd3193cafa8767112dce3bb2a

Download Submit
memory/2052-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2052-4-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2052-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-8-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2816-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x0000000000400000-0x0000000000518000-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