tofsee | a0abc9943a508f9fe58aa49a3d90f88359c97cad7da5e3879dcd5ad86f65a98f

General

Target

2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe
Size

14.1MB
MD5

8af6002a981252a165b5d1e4922816b5
SHA1

c0123dc3b19fdc3946afc95876956980e46357c7
SHA256

a0abc9943a508f9fe58aa49a3d90f88359c97cad7da5e3879dcd5ad86f65a98f
SHA512

56d900a15734a32fbece3831ca9cf0c1a887a3831d11c67fa758cd10681272cbdf4c315ce76c175e304c31328fd35504abb55a45d1d4350280f183a41ea0a2ad
SSDEEP

49152:vVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGW:vVdrl/9zG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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

Processes:

netsh.exe

pid process

3852 netsh.exe

pid	process
3852	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\uniydix\ImagePath = "C:\\Windows\\SysWOW64\\uniydix\\hcjgfcyz.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

556 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hcjgfcyz.exe

pid process

3788 hcjgfcyz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hcjgfcyz.exe

description pid process target process

PID 3788 set thread context of 556 3788 hcjgfcyz.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

1728 sc.exe
2080 sc.exe
2924 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
556	svchost.exe

pid	process
3788	hcjgfcyz.exe

description	pid	process	target process
PID 3788 set thread context of 556	3788	hcjgfcyz.exe	svchost.exe

pid	process
1728	sc.exe
2080	sc.exe
2924	sc.exe

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

Processes:

netsh.exe

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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1928 2812 WerFault.exe 2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe
1228 3788 WerFault.exe hcjgfcyz.exe

pid	pid_target	process	target process
1928	2812	WerFault.exe	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe
1228	3788	WerFault.exe	hcjgfcyz.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

Processes:

cmd.exesc.exenetsh.exesvchost.exe2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.execmd.exesc.exesc.exehcjgfcyz.exe

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-03_8af6002a981252a165b5d1e4922816b5_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	hcjgfcyz.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exehcjgfcyz.exe

description	pid	process	target process
PID 2812 wrote to memory of 2192	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2812 wrote to memory of 2192	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2812 wrote to memory of 2192	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2812 wrote to memory of 3732	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2812 wrote to memory of 3732	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2812 wrote to memory of 3732	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2812 wrote to memory of 1728	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 1728	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 1728	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 2080	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 2080	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 2080	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 2924	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 2924	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 2924	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2812 wrote to memory of 3852	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	netsh.exe
PID 2812 wrote to memory of 3852	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	netsh.exe
PID 2812 wrote to memory of 3852	2812	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	netsh.exe
PID 3788 wrote to memory of 556	3788	hcjgfcyz.exe	svchost.exe
PID 3788 wrote to memory of 556	3788	hcjgfcyz.exe	svchost.exe
PID 3788 wrote to memory of 556	3788	hcjgfcyz.exe	svchost.exe
PID 3788 wrote to memory of 556	3788	hcjgfcyz.exe	svchost.exe
PID 3788 wrote to memory of 556	3788	hcjgfcyz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uniydix\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcjgfcyz.exe" C:\Windows\SysWOW64\uniydix\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uniydix binPath= "C:\Windows\SysWOW64\uniydix\hcjgfcyz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uniydix "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uniydix
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- 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:3852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 788
  2⤵
  - Program crash
  PID:1928

C:\Windows\SysWOW64\uniydix\hcjgfcyz.exe
C:\Windows\SysWOW64\uniydix\hcjgfcyz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3788
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3788 -s 512
  2⤵
  - Program crash
  PID:1228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2812 -ip 2812
1⤵
PID:3160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3788 -ip 3788
1⤵
PID:1708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.2MB

MD5
ac35a404dafba0f53a5845bf2dd78c2d

SHA1
e17a8f13d4fef40640302246235395a96c3bc6ac

SHA256
ac7a3e3a6d2faa4da2eb9f75662b3f9c7340f66e4781252626ef9918106f5d88

SHA512
f3405322a2ae9bee75350a85bd11adda29322e836e997f483d3c8b3863e33c3308cedbd80b29a06fa10e7f50d82086d2702fb1ff63e5414c5ddd4e4dc7872522

Download Submit
memory/556-14-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/556-17-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/556-16-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/2812-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2812-8-0x0000000002280000-0x0000000002293000-memory.dmp

Filesize
76KB

Download
memory/2812-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/2812-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2812-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2812-2-0x0000000002280000-0x0000000002293000-memory.dmp

Filesize
76KB

Download
memory/3788-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3788-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3788-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3788-18-0x0000000000400000-0x0000000000518000-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