tofsee | 520936f0d45054384bedb2f685da3b9d47c9bd989d552c856cc758d7c42b5701

General

Target

2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe
Size

12.4MB
MD5

8c94d6b3385483ea8c78bc863da3bb6e
SHA1

f45058578f354f8b9a2b64c91cdaec3354250403
SHA256

520936f0d45054384bedb2f685da3b9d47c9bd989d552c856cc758d7c42b5701
SHA512

aac43c83d709b547ef5720642e1cf0d9c2f8d55cb4357ce04a32e28f002133230f8ec5de8686e2e5891fb55f29d1f7584b94858258144f19df4e0f630218925b
SSDEEP

49152:nqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:nqtYc3

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

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4952	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\hnbtrjed\ImagePath = "C:\\Windows\\SysWOW64\\hnbtrjed\\ihvxlijb.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe

Deletes itself 1 IoCs

pid	Process
3668	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
212	ihvxlijb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 212 set thread context of 3668	212	ihvxlijb.exe	94

Launches sc.exe 3 IoCs

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

pid	Process
4036	sc.exe
1472	sc.exe
3160	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4656	2800	WerFault.exe	82
2216	212	WerFault.exe	93

System Location Discovery: System Language Discovery 1 TTPs 9 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	ihvxlijb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 3696	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	83
PID 2800 wrote to memory of 3696	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	83
PID 2800 wrote to memory of 3696	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	83
PID 2800 wrote to memory of 1964	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	85
PID 2800 wrote to memory of 1964	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	85
PID 2800 wrote to memory of 1964	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	85
PID 2800 wrote to memory of 4036	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	87
PID 2800 wrote to memory of 4036	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	87
PID 2800 wrote to memory of 4036	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	87
PID 2800 wrote to memory of 1472	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	89
PID 2800 wrote to memory of 1472	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	89
PID 2800 wrote to memory of 1472	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	89
PID 2800 wrote to memory of 3160	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	91
PID 2800 wrote to memory of 3160	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	91
PID 2800 wrote to memory of 3160	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	91
PID 212 wrote to memory of 3668	212	ihvxlijb.exe	94
PID 212 wrote to memory of 3668	212	ihvxlijb.exe	94
PID 212 wrote to memory of 3668	212	ihvxlijb.exe	94
PID 212 wrote to memory of 3668	212	ihvxlijb.exe	94
PID 212 wrote to memory of 3668	212	ihvxlijb.exe	94
PID 2800 wrote to memory of 4952	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	98
PID 2800 wrote to memory of 4952	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	98
PID 2800 wrote to memory of 4952	2800	2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hnbtrjed\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ihvxlijb.exe" C:\Windows\SysWOW64\hnbtrjed\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hnbtrjed binPath= "C:\Windows\SysWOW64\hnbtrjed\ihvxlijb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hnbtrjed "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hnbtrjed
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3160
- 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:4952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2800 -s 580
  2⤵
  - Program crash
  PID:4656

C:\Windows\SysWOW64\hnbtrjed\ihvxlijb.exe
C:\Windows\SysWOW64\hnbtrjed\ihvxlijb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_8c94d6b3385483ea8c78bc863da3bb6e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 528
  2⤵
  - Program crash
  PID:2216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 212 -ip 212
1⤵
PID:2572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2800 -ip 2800
1⤵
PID:1508

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
10.4MB

MD5
9c1614a8f8987a793c66fff33226b5c4

SHA1
ac1a56f4892219630bcf007a0b9fbab6e25bd866

SHA256
971904d16840933ac012e864e1ebcb270b0189912c538e3bb4bcb2821eb4e1e3

SHA512
e0a8924e7cc439492945ef8f936faa14a101fe88282efc6fd29df663a217211ed2bd32d41070873f065ccc74cf8a6d7674ef0e918e028bcfb7debdcfe2aa18ad

Download Submit
memory/212-13-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2800-1-0x0000000002E30000-0x0000000002F30000-memory.dmp

Filesize
1024KB

Download
memory/2800-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/2800-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2800-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2800-11-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/2800-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3668-8-0x00000000010A0000-0x00000000010B5000-memory.dmp

Filesize
84KB

Download
memory/3668-14-0x00000000010A0000-0x00000000010B5000-memory.dmp

Filesize
84KB

Download
memory/3668-15-0x00000000010A0000-0x00000000010B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads