tofsee | 474e7f88aac0629335683b2066e36ae4e9fb015cec2ddc47483948ab8c1aa8ec

General

Target

2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe
Size

12.6MB
MD5

1a38a6e71e99568d0f9066b44bc890cf
SHA1

a8741156acc3a1baf0d04783c5931b3df15763cc
SHA256

474e7f88aac0629335683b2066e36ae4e9fb015cec2ddc47483948ab8c1aa8ec
SHA512

6c093c7648f10abb220dfacd9c786e20daedde6a16b5a9f7e96c55b29bac9993354294f3cfac84bdd8884d79974e448a3e8e4321e171e9d5ce264011d6f212a7
SSDEEP

393216:cXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXE:7

Score

10^/10

tofsee defense_evasion discovery 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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1020	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\kcoabraz\ImagePath = "C:\\Windows\\SysWOW64\\kcoabraz\\hcgyozbz.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3376	hcgyozbz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3376 set thread context of 2716	3376	hcgyozbz.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1556	sc.exe
2236	sc.exe
3860	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	hcgyozbz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 4668	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	85
PID 1116 wrote to memory of 4668	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	85
PID 1116 wrote to memory of 4668	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	85
PID 1116 wrote to memory of 1764	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	89
PID 1116 wrote to memory of 1764	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	89
PID 1116 wrote to memory of 1764	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	89
PID 1116 wrote to memory of 3860	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	91
PID 1116 wrote to memory of 3860	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	91
PID 1116 wrote to memory of 3860	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	91
PID 1116 wrote to memory of 1556	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	94
PID 1116 wrote to memory of 1556	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	94
PID 1116 wrote to memory of 1556	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	94
PID 1116 wrote to memory of 2236	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	96
PID 1116 wrote to memory of 2236	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	96
PID 1116 wrote to memory of 2236	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	96
PID 3376 wrote to memory of 2716	3376	hcgyozbz.exe	100
PID 3376 wrote to memory of 2716	3376	hcgyozbz.exe	100
PID 3376 wrote to memory of 2716	3376	hcgyozbz.exe	100
PID 3376 wrote to memory of 2716	3376	hcgyozbz.exe	100
PID 3376 wrote to memory of 2716	3376	hcgyozbz.exe	100
PID 1116 wrote to memory of 1020	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	103
PID 1116 wrote to memory of 1020	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	103
PID 1116 wrote to memory of 1020	1116	2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kcoabraz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcgyozbz.exe" C:\Windows\SysWOW64\kcoabraz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kcoabraz binPath= "C:\Windows\SysWOW64\kcoabraz\hcgyozbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kcoabraz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kcoabraz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2236
- 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:1020

C:\Windows\SysWOW64\kcoabraz\hcgyozbz.exe
C:\Windows\SysWOW64\kcoabraz\hcgyozbz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_1a38a6e71e99568d0f9066b44bc890cf_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - 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

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\hcgyozbz.exe

Filesize
14.8MB

MD5
e63cfe357089c232ec9ec2279b427741

SHA1
067e92a765691c0a8bd427b3b337ee2d0e949742

SHA256
19b2c80671cdb348b9a49acbe64d49d6cf5908eeb3723d2ef617c11811cf4eb1

SHA512
aaad01288616228674841b7703a9792c87b7a47f8909a571e1c98d43253ec095eccb4e7eb756cd4b9cbce5a0b062e7c4084c0f8e8f1f623da9f4afe4239eb8e4

Download Submit
memory/1116-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1116-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1116-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1116-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/1116-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1116-17-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2716-19-0x0000000000630000-0x0000000000645000-memory.dmp

Filesize
84KB

Download
memory/2716-21-0x0000000000630000-0x0000000000645000-memory.dmp

Filesize
84KB

Download
memory/2716-10-0x0000000000630000-0x0000000000645000-memory.dmp

Filesize
84KB

Download
memory/2716-13-0x0000000000630000-0x0000000000645000-memory.dmp

Filesize
84KB

Download
memory/2716-20-0x0000000000630000-0x0000000000645000-memory.dmp

Filesize
84KB

Download
memory/3376-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3376-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3376-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads