tofsee | e29f2c55481aae49476f4eed302cf7aeb98d1b3efc050220378a944fadbb5d87

General

Target

2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe
Size

12.8MB
MD5

accf8d716b789cd50ea56708bd19b0a4
SHA1

d9db26522635830d851f5a29be7798b4e299404e
SHA256

e29f2c55481aae49476f4eed302cf7aeb98d1b3efc050220378a944fadbb5d87
SHA512

7c2adf752c75fd5d0f6a65e5ebe5e0ac492fd844dba53771915d031c66d44870ccd85a9f6e324dd7fb04f5c0b084b5b1fb5b7ed7d3cdcdefe1332b0b284544d4
SSDEEP

393216:TXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

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
53	4804	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
2604	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\yeujymaw\ImagePath = "C:\\Windows\\SysWOW64\\yeujymaw\\nqwqfqbh.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-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe

Deletes itself 1 IoCs

pid	Process
968	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4820	nqwqfqbh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4820 set thread context of 968	4820	nqwqfqbh.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3664	sc.exe
656	sc.exe
2044	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	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.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	netsh.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nqwqfqbh.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
4760	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 60	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	89
PID 2232 wrote to memory of 60	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	89
PID 2232 wrote to memory of 60	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	89
PID 2232 wrote to memory of 3220	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	91
PID 2232 wrote to memory of 3220	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	91
PID 2232 wrote to memory of 3220	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	91
PID 2232 wrote to memory of 3664	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	93
PID 2232 wrote to memory of 3664	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	93
PID 2232 wrote to memory of 3664	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	93
PID 2232 wrote to memory of 656	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	95
PID 2232 wrote to memory of 656	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	95
PID 2232 wrote to memory of 656	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	95
PID 2232 wrote to memory of 2044	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	97
PID 2232 wrote to memory of 2044	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	97
PID 2232 wrote to memory of 2044	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	97
PID 2232 wrote to memory of 2604	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	100
PID 2232 wrote to memory of 2604	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	100
PID 2232 wrote to memory of 2604	2232	2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe	100
PID 4820 wrote to memory of 968	4820	nqwqfqbh.exe	102
PID 4820 wrote to memory of 968	4820	nqwqfqbh.exe	102
PID 4820 wrote to memory of 968	4820	nqwqfqbh.exe	102
PID 4820 wrote to memory of 968	4820	nqwqfqbh.exe	102
PID 4820 wrote to memory of 968	4820	nqwqfqbh.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yeujymaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:60
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nqwqfqbh.exe" C:\Windows\SysWOW64\yeujymaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yeujymaw binPath= "C:\Windows\SysWOW64\yeujymaw\nqwqfqbh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yeujymaw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yeujymaw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2044
- 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:2604

C:\Windows\SysWOW64\yeujymaw\nqwqfqbh.exe
C:\Windows\SysWOW64\yeujymaw\nqwqfqbh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_accf8d716b789cd50ea56708bd19b0a4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:968

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTU2OTk3NDM1Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4760

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\nqwqfqbh.exe

Filesize
14.4MB

MD5
26e949e6dfdbf5dd94eb0473d531f28c

SHA1
9e3dfeb5b8cb29fe4f0aef45c6146f45550e9815

SHA256
156872bfe70d304f01501efb15180a8181b14bbe67f94da12da6d83fdc280181

SHA512
966ce4efaf14606f08680d6b4e427b0ab5f488e89ce0f12eaf5a6f22e9236cf2094ffdcb1181df18766858c33e7c2b2975e0fcdbdf792a6c1e09df8043b656f1

Download Submit
memory/968-14-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/968-22-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/968-21-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/968-17-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/968-18-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/2232-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2232-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2232-8-0x0000000000460000-0x0000000000473000-memory.dmp

Filesize
76KB

Download
memory/2232-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/2232-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2232-2-0x0000000000460000-0x0000000000473000-memory.dmp

Filesize
76KB

Download
memory/4820-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4820-20-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4820-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4820-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads