tofsee | 15d808778e4fd9319cf62ebb3eb725b8848d4bf314d24d947f0fedf1a19afb19

Analysis

max time kernel
144s
max time network
125s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 20:34

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General

Target

2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe
Size

13.9MB
MD5

bee29004aafc91f6dc983b3395338d49
SHA1

8f0a1937eff8cd116d16147a90cd4df8d7e59746
SHA256

15d808778e4fd9319cf62ebb3eb725b8848d4bf314d24d947f0fedf1a19afb19
SHA512

99e28afd279e0d0d41622d4127e676b0c4caf1a4308490e724e34c1eb1f7c1a2da26763cafd10c92d1c5910fae70f4235a30b115a3174521027259395b6b73ab
SSDEEP

24576:W6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ4:XWdLQk

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\ygxzrnuu = "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
2944	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\ygxzrnuu\ImagePath = "C:\\Windows\\SysWOW64\\ygxzrnuu\\wblgamjl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2764	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	wblgamjl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3036 set thread context of 2764	3036	wblgamjl.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2396	sc.exe
2508	sc.exe
2848	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 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

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	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wblgamjl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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
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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 3068	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	30
PID 2424 wrote to memory of 3068	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	30
PID 2424 wrote to memory of 3068	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	30
PID 2424 wrote to memory of 3068	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	30
PID 2424 wrote to memory of 2324	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	32
PID 2424 wrote to memory of 2324	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	32
PID 2424 wrote to memory of 2324	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	32
PID 2424 wrote to memory of 2324	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	32
PID 2424 wrote to memory of 2396	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	34
PID 2424 wrote to memory of 2396	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	34
PID 2424 wrote to memory of 2396	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	34
PID 2424 wrote to memory of 2396	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	34
PID 2424 wrote to memory of 2508	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	36
PID 2424 wrote to memory of 2508	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	36
PID 2424 wrote to memory of 2508	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	36
PID 2424 wrote to memory of 2508	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	36
PID 2424 wrote to memory of 2848	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	39
PID 2424 wrote to memory of 2848	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	39
PID 2424 wrote to memory of 2848	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	39
PID 2424 wrote to memory of 2848	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	39
PID 3036 wrote to memory of 2764	3036	wblgamjl.exe	42
PID 3036 wrote to memory of 2764	3036	wblgamjl.exe	42
PID 3036 wrote to memory of 2764	3036	wblgamjl.exe	42
PID 3036 wrote to memory of 2764	3036	wblgamjl.exe	42
PID 3036 wrote to memory of 2764	3036	wblgamjl.exe	42
PID 3036 wrote to memory of 2764	3036	wblgamjl.exe	42
PID 2424 wrote to memory of 2944	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	43
PID 2424 wrote to memory of 2944	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	43
PID 2424 wrote to memory of 2944	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	43
PID 2424 wrote to memory of 2944	2424	2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ygxzrnuu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wblgamjl.exe" C:\Windows\SysWOW64\ygxzrnuu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ygxzrnuu binPath= "C:\Windows\SysWOW64\ygxzrnuu\wblgamjl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ygxzrnuu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ygxzrnuu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- 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:2944

C:\Windows\SysWOW64\ygxzrnuu\wblgamjl.exe
C:\Windows\SysWOW64\ygxzrnuu\wblgamjl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_bee29004aafc91f6dc983b3395338d49_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2764

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\wblgamjl.exe

Filesize
13.3MB

MD5
a366b3aa05186e39ac84839b5e8aa8a2

SHA1
9649c39bb14e888450193811b583b6c5a50b272a

SHA256
bdf5cdd36472b0ab1f80759ccf4ad016de41ae4b39461f1d2db0d1b9634046e8

SHA512
16b7f45ffd5a97e7774b6d866d2c063a6538a6f3b5f0568d526314fde7200ecc8ed78571fbf6275246c597d1d1f815324c20a32f90065a05993ac433b0561390

Download Submit
memory/2424-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2424-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2424-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2424-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2424-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2424-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2764-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2764-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2764-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2764-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3036-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads