tofsee | 30598e4fbd84ddfd716ef1388d31cbcd18169cd243a1e88e1e10288dcae29efe

General

Target

2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe
Size

14.6MB
MD5

e6eecff404e0de6b7c8704d5cf342a03
SHA1

218314d94e3e17eac73076d3efb18378389269d1
SHA256

30598e4fbd84ddfd716ef1388d31cbcd18169cd243a1e88e1e10288dcae29efe
SHA512

6e12f2e1542bccf925033669b9b2595d8cfdccb793954cfb21498ace3aca8f2ab083a03015ae0facd2caac67e06ace6d4c713fb4352e50c07b6ef5e50279f24c
SSDEEP

49152:PqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPL:PqtYc32

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
58	2384	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
1804	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\esuwmegw\ImagePath = "C:\\Windows\\SysWOW64\\esuwmegw\\uqiifuth.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-1-5-21-1318997816-2171176372-1451785247-1000\Control Panel\International\Geo\Nation	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe

Deletes itself 1 IoCs

pid	Process
4820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
220	uqiifuth.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 220 set thread context of 4820	220	uqiifuth.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2368	sc.exe
4152	sc.exe
4956	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
3780	220	WerFault.exe	100
3892	884	WerFault.exe	89

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	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uqiifuth.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	cmd.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	MicrosoftEdgeUpdate.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
2324	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 884 wrote to memory of 1960	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	90
PID 884 wrote to memory of 1960	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	90
PID 884 wrote to memory of 1960	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	90
PID 884 wrote to memory of 2480	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	92
PID 884 wrote to memory of 2480	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	92
PID 884 wrote to memory of 2480	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	92
PID 884 wrote to memory of 2368	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	94
PID 884 wrote to memory of 2368	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	94
PID 884 wrote to memory of 2368	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	94
PID 884 wrote to memory of 4152	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	96
PID 884 wrote to memory of 4152	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	96
PID 884 wrote to memory of 4152	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	96
PID 884 wrote to memory of 4956	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	98
PID 884 wrote to memory of 4956	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	98
PID 884 wrote to memory of 4956	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	98
PID 220 wrote to memory of 4820	220	uqiifuth.exe	101
PID 220 wrote to memory of 4820	220	uqiifuth.exe	101
PID 220 wrote to memory of 4820	220	uqiifuth.exe	101
PID 220 wrote to memory of 4820	220	uqiifuth.exe	101
PID 220 wrote to memory of 4820	220	uqiifuth.exe	101
PID 884 wrote to memory of 1804	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	102
PID 884 wrote to memory of 1804	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	102
PID 884 wrote to memory of 1804	884	2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\esuwmegw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uqiifuth.exe" C:\Windows\SysWOW64\esuwmegw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2480
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create esuwmegw binPath= "C:\Windows\SysWOW64\esuwmegw\uqiifuth.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description esuwmegw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4152
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start esuwmegw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4956
- 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:1804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 884 -s 1048
  2⤵
  - Program crash
  PID:3892

C:\Windows\SysWOW64\esuwmegw\uqiifuth.exe
C:\Windows\SysWOW64\esuwmegw\uqiifuth.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e6eecff404e0de6b7c8704d5cf342a03_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 516
  2⤵
  - Program crash
  PID:3780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 884 -ip 884
1⤵
PID:1844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 220 -ip 220
1⤵
PID:2328

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDIxMTE4NDIzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2324

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\uqiifuth.exe

Filesize
13.0MB

MD5
72a7a6605a4136c76243b7e33f69fc03

SHA1
e27530126f0ea057d06da48b22763f1bf1ac00a5

SHA256
8e08d2abeebded10efe14113acdcfcf3953eb01e86f804949851a2acbe504e5d

SHA512
068c56739d74332438d8360d407123b16ef9bb8ec391cd87eb19f2e7cf350c0aad3ed2d26b3e90c9b69211c03dea9e6c84ed31f52a2128265f38e4e25fb8186d

Download Submit
memory/220-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/884-1-0x0000000003100000-0x0000000003200000-memory.dmp

Filesize
1024KB

Download
memory/884-2-0x0000000003200000-0x0000000003213000-memory.dmp

Filesize
76KB

Download
memory/884-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/884-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/884-12-0x0000000003200000-0x0000000003213000-memory.dmp

Filesize
76KB

Download
memory/884-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4820-8-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download
memory/4820-14-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download
memory/4820-15-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads