tofsee | 36625804f1099ea6e06a519a470c8a82b97aa4e7648a257b72182a60c1d277a6

General

Target

2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe
Size

11.2MB
MD5

84bf7d5589f060ac9be7580ba979152d
SHA1

5ccd57c2b6b7672625c156155e3f1c52fffbb8f6
SHA256

36625804f1099ea6e06a519a470c8a82b97aa4e7648a257b72182a60c1d277a6
SHA512

761fd1b449310b223f9162ce688d4f1cd3b663cfeac359624c35fdb2cd75f2dfad50f3e5b643bd12bc1b74d4c8818e5a9622688da6acc2d65c5e724968686e4d
SSDEEP

196608:xyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:cXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
38	640	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1528	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\eujzwbn\ImagePath = "C:\\Windows\\SysWOW64\\eujzwbn\\jfxxujiw.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-1-5-21-3311063739-2594902809-44604183-1000\Control Panel\International\Geo\Nation	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe

Deletes itself 1 IoCs

pid	Process
2732	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4992	jfxxujiw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 2732	4992	jfxxujiw.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2808	sc.exe
3140	sc.exe
4368	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 10 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_84bf7d5589f060ac9be7580ba979152d_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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	jfxxujiw.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1760	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3984 wrote to memory of 4488	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	89
PID 3984 wrote to memory of 4488	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	89
PID 3984 wrote to memory of 4488	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	89
PID 3984 wrote to memory of 2832	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	91
PID 3984 wrote to memory of 2832	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	91
PID 3984 wrote to memory of 2832	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	91
PID 3984 wrote to memory of 2808	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	93
PID 3984 wrote to memory of 2808	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	93
PID 3984 wrote to memory of 2808	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	93
PID 3984 wrote to memory of 3140	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	95
PID 3984 wrote to memory of 3140	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	95
PID 3984 wrote to memory of 3140	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	95
PID 3984 wrote to memory of 4368	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	97
PID 3984 wrote to memory of 4368	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	97
PID 3984 wrote to memory of 4368	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	97
PID 3984 wrote to memory of 1528	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	100
PID 3984 wrote to memory of 1528	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	100
PID 3984 wrote to memory of 1528	3984	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	100
PID 4992 wrote to memory of 2732	4992	jfxxujiw.exe	102
PID 4992 wrote to memory of 2732	4992	jfxxujiw.exe	102
PID 4992 wrote to memory of 2732	4992	jfxxujiw.exe	102
PID 4992 wrote to memory of 2732	4992	jfxxujiw.exe	102
PID 4992 wrote to memory of 2732	4992	jfxxujiw.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eujzwbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jfxxujiw.exe" C:\Windows\SysWOW64\eujzwbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eujzwbn binPath= "C:\Windows\SysWOW64\eujzwbn\jfxxujiw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eujzwbn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eujzwbn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4368
- 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:1528

C:\Windows\SysWOW64\eujzwbn\jfxxujiw.exe
C:\Windows\SysWOW64\eujzwbn\jfxxujiw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2732

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7RDY2RTNGOTctNzhFMy00MDcwLThCREYtRjI4RjFFOTA3NDU1fSIgdXNlcmlkPSJ7MDUzQTI5OTAtMUUzOC00NjM0LTlBRTctQzFDNkI4NkIwOThFfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7MDY2NzQ2QTEtQkFENS00M0Q3LTg2NjAtMkJCNjlBQTNCNUI3fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODM1MTc3OTAyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1760

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.3MB

MD5
3ac45e961815683acdade45980036d07

SHA1
427a1598f3c4adfaf3a84de7b986017f453243be

SHA256
161f5ed785ad905a842245e53cf85cc74af82867c74ab9499c18f7687587b327

SHA512
6a9d71a72952904703149d84aa1e0cd9053f04da1c07e5e8918f11916d0d71f8856e29778d6c7a9fba1e82c619528ca96585af3637a12be4d4775e87f62bcf30

Download Submit
memory/2732-17-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/2732-13-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/2732-20-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/2732-21-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/3984-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3984-2-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/3984-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3984-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/3984-8-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/3984-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4992-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4992-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4992-19-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads