tofsee | abadc617e8a448d3c4c6a6137202bb4fdbaae647610b36c9abbfa91aab40239d

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 20:30

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General

Target

2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe
Size

14.8MB
MD5

d4364d05e95824b67db490a8d95f9fdd
SHA1

ef331c4235f32556a897c8b88f147358b968cccc
SHA256

abadc617e8a448d3c4c6a6137202bb4fdbaae647610b36c9abbfa91aab40239d
SHA512

8f12bb9a3d3eb20b63946eb2a34fd3d6542383bd1ed85744f71b7945a88f559c6a15fd6cdc2483a3bec7edf96374f5bfadd2cdcd00b4937997facb12865ca830
SSDEEP

3072:kLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:hOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\uahoqsaq = "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
2844	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\uahoqsaq\ImagePath = "C:\\Windows\\SysWOW64\\uahoqsaq\\oiizktkm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2424	oiizktkm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2424 set thread context of 2828	2424	oiizktkm.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2356	sc.exe
1700	sc.exe
2508	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	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.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	oiizktkm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2100	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	30
PID 2360 wrote to memory of 2100	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	30
PID 2360 wrote to memory of 2100	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	30
PID 2360 wrote to memory of 2100	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	30
PID 2360 wrote to memory of 1748	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	32
PID 2360 wrote to memory of 1748	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	32
PID 2360 wrote to memory of 1748	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	32
PID 2360 wrote to memory of 1748	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	32
PID 2360 wrote to memory of 2356	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	34
PID 2360 wrote to memory of 2356	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	34
PID 2360 wrote to memory of 2356	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	34
PID 2360 wrote to memory of 2356	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	34
PID 2360 wrote to memory of 1700	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	36
PID 2360 wrote to memory of 1700	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	36
PID 2360 wrote to memory of 1700	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	36
PID 2360 wrote to memory of 1700	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	36
PID 2360 wrote to memory of 2508	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	38
PID 2360 wrote to memory of 2508	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	38
PID 2360 wrote to memory of 2508	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	38
PID 2360 wrote to memory of 2508	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	38
PID 2424 wrote to memory of 2828	2424	oiizktkm.exe	41
PID 2424 wrote to memory of 2828	2424	oiizktkm.exe	41
PID 2424 wrote to memory of 2828	2424	oiizktkm.exe	41
PID 2424 wrote to memory of 2828	2424	oiizktkm.exe	41
PID 2424 wrote to memory of 2828	2424	oiizktkm.exe	41
PID 2424 wrote to memory of 2828	2424	oiizktkm.exe	41
PID 2360 wrote to memory of 2844	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	42
PID 2360 wrote to memory of 2844	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	42
PID 2360 wrote to memory of 2844	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	42
PID 2360 wrote to memory of 2844	2360	2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uahoqsaq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oiizktkm.exe" C:\Windows\SysWOW64\uahoqsaq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uahoqsaq binPath= "C:\Windows\SysWOW64\uahoqsaq\oiizktkm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uahoqsaq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uahoqsaq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- 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:2844

C:\Windows\SysWOW64\uahoqsaq\oiizktkm.exe
C:\Windows\SysWOW64\uahoqsaq\oiizktkm.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-30_d4364d05e95824b67db490a8d95f9fdd_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2424
- 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:2828

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\oiizktkm.exe

Filesize
14.8MB

MD5
2597ccf18c2ff7d7190640d7b145c98a

SHA1
2b503e72f28850064946b72ba8a07a14f6c63820

SHA256
dbde0896fb8c34861cbb705f1f1ad2bcc4bebb326ce78eff2c7cbdbfa539669f

SHA512
e0900cc9c6d54ac8c0f1b67ea4005cb385d20fb724f08f35ab8b39de8c5fc131e3c26003771e5c207ce0fcd58dd0b8b00267bf73f675f7c8440550ad9bb8fb6a

Download Submit
memory/2360-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2360-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2360-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/2360-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2360-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2360-14-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2424-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2828-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2828-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads