tofsee | bbb64a5242eda8d4f5e4a1a4f7242e18f851af80472a63b88d84ff3b0e34f50b

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 20:55

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General

Target

2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe
Size

13.7MB
MD5

2b3eb8c627dd2a792145fd7b6016a15b
SHA1

38a1ba7cb8220d0c52cc0d6fab5b90c1308cf590
SHA256

bbb64a5242eda8d4f5e4a1a4f7242e18f851af80472a63b88d84ff3b0e34f50b
SHA512

e55c4fcd6d2d7f54748489b04abcec77a2483541b6c7643b8b8dd316770e168dc85ed05fa9e101decc8561153edaa657551e82cd7fb04e14360922466b6cf8dc
SSDEEP

3072:4LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:1OMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\cgjlslvr = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2056	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\cgjlslvr\ImagePath = "C:\\Windows\\SysWOW64\\cgjlslvr\\hcgyozbz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3056	hcgyozbz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3056 set thread context of 2716	3056	hcgyozbz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2444	sc.exe
2464	sc.exe
2824	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	cmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hcgyozbz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.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 2392 wrote to memory of 2336	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	30
PID 2392 wrote to memory of 2336	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	30
PID 2392 wrote to memory of 2336	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	30
PID 2392 wrote to memory of 2336	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	30
PID 2392 wrote to memory of 3036	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	32
PID 2392 wrote to memory of 3036	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	32
PID 2392 wrote to memory of 3036	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	32
PID 2392 wrote to memory of 3036	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	32
PID 2392 wrote to memory of 2444	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	34
PID 2392 wrote to memory of 2444	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	34
PID 2392 wrote to memory of 2444	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	34
PID 2392 wrote to memory of 2444	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	34
PID 2392 wrote to memory of 2464	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	36
PID 2392 wrote to memory of 2464	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	36
PID 2392 wrote to memory of 2464	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	36
PID 2392 wrote to memory of 2464	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	36
PID 2392 wrote to memory of 2824	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	38
PID 2392 wrote to memory of 2824	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	38
PID 2392 wrote to memory of 2824	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	38
PID 2392 wrote to memory of 2824	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	38
PID 2392 wrote to memory of 2056	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	41
PID 2392 wrote to memory of 2056	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	41
PID 2392 wrote to memory of 2056	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	41
PID 2392 wrote to memory of 2056	2392	2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe	41
PID 3056 wrote to memory of 2716	3056	hcgyozbz.exe	43
PID 3056 wrote to memory of 2716	3056	hcgyozbz.exe	43
PID 3056 wrote to memory of 2716	3056	hcgyozbz.exe	43
PID 3056 wrote to memory of 2716	3056	hcgyozbz.exe	43
PID 3056 wrote to memory of 2716	3056	hcgyozbz.exe	43
PID 3056 wrote to memory of 2716	3056	hcgyozbz.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cgjlslvr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcgyozbz.exe" C:\Windows\SysWOW64\cgjlslvr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cgjlslvr binPath= "C:\Windows\SysWOW64\cgjlslvr\hcgyozbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2444
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cgjlslvr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cgjlslvr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- 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:2056

C:\Windows\SysWOW64\cgjlslvr\hcgyozbz.exe
C:\Windows\SysWOW64\cgjlslvr\hcgyozbz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_2b3eb8c627dd2a792145fd7b6016a15b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056
- 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:2716

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\hcgyozbz.exe

Filesize
12.4MB

MD5
db367476e336158be431ef6f9659d78e

SHA1
9bcf50ab92705a6e02b91dbc092560425b49b158

SHA256
6c67aab7d86ecd85005303f9c50b42d0a8bc33bea790c6699e561518c5e6c50f

SHA512
7399101386c443d413af6f834ecec57994efda8efcdbf26890401e969d16d8d4fd6b9f9d7adbbd4276cd46849064e5cfb53c6e623b753c6221158e3103ba4ef3

Download Submit
memory/2392-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2392-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2392-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2392-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2392-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2392-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2716-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2716-14-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2716-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2716-18-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/3056-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads