tofsee | fa16b5b7081d04851b9d783814f767671682cf1f3771d84dc8c40d7f1e80a1a4

General

Target

2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe
Size

13.2MB
MD5

85a5bd14d17d2d89c5bfacfb40edc002
SHA1

e5c23c076a94260ee8bc036886d51ad6137fc5bd
SHA256

fa16b5b7081d04851b9d783814f767671682cf1f3771d84dc8c40d7f1e80a1a4
SHA512

50e8fd220961349538101a92f420961cc22155a3c30aa3869766b831a32f7cd800da35fafe87f5f22947fcc8e3b8b53ad33c28e3b553e683cafdf4ffd7b8837a
SSDEEP

24576:mEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZp:ffot

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
4972	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\idubiluv\ImagePath = "C:\\Windows\\SysWOW64\\idubiluv\\hygeojqe.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	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe

Deletes itself 1 IoCs

pid	Process
3988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4804	hygeojqe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4804 set thread context of 3988	4804	hygeojqe.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3212	sc.exe
3764	sc.exe
4000	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1772	2320	WerFault.exe	82
1124	4804	WerFault.exe	94

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	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	hygeojqe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2356	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	84
PID 2320 wrote to memory of 2356	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	84
PID 2320 wrote to memory of 2356	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	84
PID 2320 wrote to memory of 3000	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	86
PID 2320 wrote to memory of 3000	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	86
PID 2320 wrote to memory of 3000	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	86
PID 2320 wrote to memory of 3212	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	88
PID 2320 wrote to memory of 3212	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	88
PID 2320 wrote to memory of 3212	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	88
PID 2320 wrote to memory of 3764	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	90
PID 2320 wrote to memory of 3764	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	90
PID 2320 wrote to memory of 3764	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	90
PID 2320 wrote to memory of 4000	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	92
PID 2320 wrote to memory of 4000	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	92
PID 2320 wrote to memory of 4000	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	92
PID 2320 wrote to memory of 4972	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	95
PID 2320 wrote to memory of 4972	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	95
PID 2320 wrote to memory of 4972	2320	2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe	95
PID 4804 wrote to memory of 3988	4804	hygeojqe.exe	101
PID 4804 wrote to memory of 3988	4804	hygeojqe.exe	101
PID 4804 wrote to memory of 3988	4804	hygeojqe.exe	101
PID 4804 wrote to memory of 3988	4804	hygeojqe.exe	101
PID 4804 wrote to memory of 3988	4804	hygeojqe.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\idubiluv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hygeojqe.exe" C:\Windows\SysWOW64\idubiluv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create idubiluv binPath= "C:\Windows\SysWOW64\idubiluv\hygeojqe.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description idubiluv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start idubiluv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4000
- 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:4972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 1044
  2⤵
  - Program crash
  PID:1772

C:\Windows\SysWOW64\idubiluv\hygeojqe.exe
C:\Windows\SysWOW64\idubiluv\hygeojqe.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_85a5bd14d17d2d89c5bfacfb40edc002_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 528
  2⤵
  - Program crash
  PID:1124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2320 -ip 2320
1⤵
PID:4276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4804 -ip 4804
1⤵
PID:2804

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\hygeojqe.exe

Filesize
10.1MB

MD5
220d68c1d332753c1d9bb34d47f66739

SHA1
446daa197e7347902249fbac629ab9d132afd08b

SHA256
d89b5b4cb51017fe20af1e97e2e361750e9fcdc287b7fce99065b552226497af

SHA512
bacc9c6342c1beb70bf7832e45b2280d815021d1cee45ea8f91846c2e80c1b2291babe4c91b2569ec8405c982d7997fcc430d7004bfcff9dfcb26dd287c8f6fb

Download Submit
memory/2320-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2320-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2320-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/2320-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2320-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/2320-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/3988-16-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/3988-17-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/3988-14-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/4804-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4804-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4804-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4804-19-0x0000000000400000-0x000000000044E000-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