tofsee | 9bf94e55f10d23d60a724a00c10f8782c10827846bc1e7315717c75b06439fc4

Analysis

max time kernel
144s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 20:43

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General

Target

2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe
Size

12.4MB
MD5

db987c25ac0b684de3ed6bbec118360d
SHA1

341aa3b8893a3661ac0d6ca3f5feca34d01306ba
SHA256

9bf94e55f10d23d60a724a00c10f8782c10827846bc1e7315717c75b06439fc4
SHA512

8d2627d560e5dc07d5e0d2756958b1405528a068d4c82bcaf8e45dc0bdf2b812c18e019de8239096955f44138542bf89085aea507427b2002f0cca281fe34730
SSDEEP

3072:uLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:3OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\ccjkqyfw = "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
2860	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\ccjkqyfw\ImagePath = "C:\\Windows\\SysWOW64\\ccjkqyfw\\uuvgbcai.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2572	uuvgbcai.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2572 set thread context of 3028	2572	uuvgbcai.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2696	sc.exe
2956	sc.exe
2312	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.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	uuvgbcai.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2808	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	30
PID 2196 wrote to memory of 2808	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	30
PID 2196 wrote to memory of 2808	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	30
PID 2196 wrote to memory of 2808	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	30
PID 2196 wrote to memory of 2848	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	32
PID 2196 wrote to memory of 2848	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	32
PID 2196 wrote to memory of 2848	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	32
PID 2196 wrote to memory of 2848	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	32
PID 2196 wrote to memory of 2956	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	34
PID 2196 wrote to memory of 2956	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	34
PID 2196 wrote to memory of 2956	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	34
PID 2196 wrote to memory of 2956	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	34
PID 2196 wrote to memory of 2312	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	36
PID 2196 wrote to memory of 2312	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	36
PID 2196 wrote to memory of 2312	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	36
PID 2196 wrote to memory of 2312	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	36
PID 2196 wrote to memory of 2696	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	38
PID 2196 wrote to memory of 2696	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	38
PID 2196 wrote to memory of 2696	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	38
PID 2196 wrote to memory of 2696	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	38
PID 2196 wrote to memory of 2860	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	41
PID 2196 wrote to memory of 2860	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	41
PID 2196 wrote to memory of 2860	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	41
PID 2196 wrote to memory of 2860	2196	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	41
PID 2572 wrote to memory of 3028	2572	uuvgbcai.exe	43
PID 2572 wrote to memory of 3028	2572	uuvgbcai.exe	43
PID 2572 wrote to memory of 3028	2572	uuvgbcai.exe	43
PID 2572 wrote to memory of 3028	2572	uuvgbcai.exe	43
PID 2572 wrote to memory of 3028	2572	uuvgbcai.exe	43
PID 2572 wrote to memory of 3028	2572	uuvgbcai.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ccjkqyfw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uuvgbcai.exe" C:\Windows\SysWOW64\ccjkqyfw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ccjkqyfw binPath= "C:\Windows\SysWOW64\ccjkqyfw\uuvgbcai.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ccjkqyfw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ccjkqyfw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- 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:2860

C:\Windows\SysWOW64\ccjkqyfw\uuvgbcai.exe
C:\Windows\SysWOW64\ccjkqyfw\uuvgbcai.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2572
- 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:3028

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\uuvgbcai.exe

Filesize
12.3MB

MD5
cdda48da6a33d2280551d528953da45f

SHA1
2c621d8e7c8681aa9fb9437d167a51bc70929715

SHA256
3b4914147fb557bedaf8bb358ae7dd621e00765df46f2384b2157c79af0e77fc

SHA512
fea7515472f76769302bc63b2d0b4c21a9410e7efb55fc198cf1036599e90d6600ba3feca30812768303b94508b67b675509ec35477639e18977c6e6513c0c76

Download Submit
memory/2196-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2196-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2196-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2196-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2196-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2196-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2572-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3028-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3028-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads