tofsee | bfda8b56d4225c736d8b35f242107c60fbb9312b87dfb14616e2533295029a95

General

Target

2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe
Size

12.0MB
MD5

57ba116755fef93ba55282cf56409ed0
SHA1

02d9196e81b661f0029c54bb469df4c3a4904480
SHA256

bfda8b56d4225c736d8b35f242107c60fbb9312b87dfb14616e2533295029a95
SHA512

483e018a426f9b0543a4694acb71969f01c5608d88f100125832d6e9833bd990239e2912a73e8b5215b349d286e09e6f797082e7dfc89a19f94576a91906dca1
SSDEEP

3072:JLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:MOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
36	3448	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
1916	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\ikoctjxd\ImagePath = "C:\\Windows\\SysWOW64\\ikoctjxd\\ejtoiurt.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	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe

Deletes itself 1 IoCs

pid	Process
1188	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4484	ejtoiurt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4484 set thread context of 1188	4484	ejtoiurt.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
2844	sc.exe
4948	sc.exe
1056	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
800	2432	WerFault.exe	85
3692	4484	WerFault.exe	99

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	ejtoiurt.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	netsh.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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
1000	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2520	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	89
PID 2432 wrote to memory of 2520	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	89
PID 2432 wrote to memory of 2520	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	89
PID 2432 wrote to memory of 3968	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	91
PID 2432 wrote to memory of 3968	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	91
PID 2432 wrote to memory of 3968	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	91
PID 2432 wrote to memory of 2844	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	93
PID 2432 wrote to memory of 2844	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	93
PID 2432 wrote to memory of 2844	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	93
PID 2432 wrote to memory of 4948	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	95
PID 2432 wrote to memory of 4948	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	95
PID 2432 wrote to memory of 4948	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	95
PID 2432 wrote to memory of 1056	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	97
PID 2432 wrote to memory of 1056	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	97
PID 2432 wrote to memory of 1056	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	97
PID 2432 wrote to memory of 1916	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	100
PID 2432 wrote to memory of 1916	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	100
PID 2432 wrote to memory of 1916	2432	2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe	100
PID 4484 wrote to memory of 1188	4484	ejtoiurt.exe	107
PID 4484 wrote to memory of 1188	4484	ejtoiurt.exe	107
PID 4484 wrote to memory of 1188	4484	ejtoiurt.exe	107
PID 4484 wrote to memory of 1188	4484	ejtoiurt.exe	107
PID 4484 wrote to memory of 1188	4484	ejtoiurt.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ikoctjxd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ejtoiurt.exe" C:\Windows\SysWOW64\ikoctjxd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ikoctjxd binPath= "C:\Windows\SysWOW64\ikoctjxd\ejtoiurt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ikoctjxd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ikoctjxd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1056
- 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:1916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2432 -s 1240
  2⤵
  - Program crash
  PID:800

C:\Windows\SysWOW64\ikoctjxd\ejtoiurt.exe
C:\Windows\SysWOW64\ikoctjxd\ejtoiurt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_57ba116755fef93ba55282cf56409ed0_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 556
  2⤵
  - Program crash
  PID:3692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2432 -ip 2432
1⤵
PID:544

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODQ5NjA2MjI3Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4484 -ip 4484
1⤵
PID:3424

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\ejtoiurt.exe

Filesize
12.8MB

MD5
3b719024fa1b21267617e01a9677890b

SHA1
eacf2f5f5c67fa445efa5785f635638ce7a7943a

SHA256
08dc6f7ab97bceb3f5de6f382ca0a0656e13a192f7244058c1df425beb4adeac

SHA512
a3ea584a7159a6ffefc2e3055feea5be056dbd763132e899b3a37166880992e2d2c2108f20fe386221a19e1fd2cac2dc1f1f1247a4dfe29cbf56ad403246c980

Download Submit
memory/1188-11-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/1188-13-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/1188-14-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/2432-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/2432-2-0x0000000000630000-0x0000000000643000-memory.dmp

Filesize
76KB

Download
memory/2432-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2432-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-8-0x0000000000630000-0x0000000000643000-memory.dmp

Filesize
76KB

Download
memory/4484-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads