tofsee | f4b051a98e3de375971e1a0023b799b771cc856b1ae4a6bdf29cb50415f42900

General

Target

2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe
Size

10.5MB
MD5

25f94a1dbecc910c55ed29e07ac9cbca
SHA1

815fef0d0f484888a31c977a90742402d4381209
SHA256

f4b051a98e3de375971e1a0023b799b771cc856b1ae4a6bdf29cb50415f42900
SHA512

7194750de0c3745dd6b19fec8aea1297069b730ab79557ed1f5010a8739c3996490d18828578822019bed3193e3dec01ac6c1523221d0fda5dba5adcfaf1b97c
SSDEEP

24576:ZEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZV:Sfot

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
27	2884	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
4760	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\lchijpva\ImagePath = "C:\\Windows\\SysWOW64\\lchijpva\\ruaujufl.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-1-5-21-705198581-2062733989-3666524522-1000\Control Panel\International\Geo\Nation	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe

Deletes itself 1 IoCs

pid	Process
2336	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4184	ruaujufl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4184 set thread context of 2336	4184	ruaujufl.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4940	sc.exe
1712	sc.exe
4516	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
3528	4124	WerFault.exe	85
1704	4184	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_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	ruaujufl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	sc.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
404	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4124 wrote to memory of 3224	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	89
PID 4124 wrote to memory of 3224	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	89
PID 4124 wrote to memory of 3224	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	89
PID 4124 wrote to memory of 2692	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	91
PID 4124 wrote to memory of 2692	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	91
PID 4124 wrote to memory of 2692	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	91
PID 4124 wrote to memory of 4940	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	93
PID 4124 wrote to memory of 4940	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	93
PID 4124 wrote to memory of 4940	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	93
PID 4124 wrote to memory of 1712	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	95
PID 4124 wrote to memory of 1712	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	95
PID 4124 wrote to memory of 1712	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	95
PID 4124 wrote to memory of 4516	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	97
PID 4124 wrote to memory of 4516	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	97
PID 4124 wrote to memory of 4516	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	97
PID 4124 wrote to memory of 4760	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	100
PID 4124 wrote to memory of 4760	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	100
PID 4124 wrote to memory of 4760	4124	2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe	100
PID 4184 wrote to memory of 2336	4184	ruaujufl.exe	105
PID 4184 wrote to memory of 2336	4184	ruaujufl.exe	105
PID 4184 wrote to memory of 2336	4184	ruaujufl.exe	105
PID 4184 wrote to memory of 2336	4184	ruaujufl.exe	105
PID 4184 wrote to memory of 2336	4184	ruaujufl.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lchijpva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ruaujufl.exe" C:\Windows\SysWOW64\lchijpva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lchijpva binPath= "C:\Windows\SysWOW64\lchijpva\ruaujufl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lchijpva "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lchijpva
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4516
- 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:4760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4124 -s 1040
  2⤵
  - Program crash
  PID:3528

C:\Windows\SysWOW64\lchijpva\ruaujufl.exe
C:\Windows\SysWOW64\lchijpva\ruaujufl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_25f94a1dbecc910c55ed29e07ac9cbca_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4184 -s 508
  2⤵
  - Program crash
  PID:1704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4124 -ip 4124
1⤵
PID:4884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4184 -ip 4184
1⤵
PID:4476

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4NjAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODIxNjMwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTUzMTM2MDk0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:404

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.0MB

MD5
b88efd6fd62027047f6503b844b1254b

SHA1
4517af79b45370fbebbe0c232c60a492b6522a21

SHA256
9225795b892568f50097ba1ea2c0cf9872aa3f8c65dc1ad1f4c5a709ae11156f

SHA512
3314dbc99d7f90926f2e2b878bdf32986833f888ae6f58de2e6452592b20f44de0a82a2bcf20daf848257a3da2bb764e570ed10f9791dc546af3b628e9ff1ef4

Download Submit
memory/2336-14-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/2336-17-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/2336-16-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/4124-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4124-8-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/4124-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/4124-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4124-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/4184-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4184-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4184-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4184-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads