tofsee | 682697c64ebaba27ea6cb073f31fcd71a75f12e466b445124e7b3ef79abdd3e9

General

Target

2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe
Size

13.2MB
MD5

23a30960ef2bceeb34f879d68c404b63
SHA1

0ef65c7c1f7921ef5a1fe8abf962ea4819d1385f
SHA256

682697c64ebaba27ea6cb073f31fcd71a75f12e466b445124e7b3ef79abdd3e9
SHA512

ec99f656b16362d2d105015de16158d740cd79f7a4afd4d9d45d3c83081dadcb22ecd2c2f027f11bba4ea15e24b6d13623587edd0d53fef3fe6b22894cd9a6d4
SSDEEP

3072:JLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/n:MOMdRQr7OB0ypmMXnl8XEPM3noSWOCi

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
5008	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\ifmulbdx\ImagePath = "C:\\Windows\\SysWOW64\\ifmulbdx\\toskalnl.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe

Deletes itself 1 IoCs

pid	Process
452	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4624	toskalnl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4624 set thread context of 452	4624	toskalnl.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
668	sc.exe
4832	sc.exe
5044	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
3892	1620	WerFault.exe	82
1636	4624	WerFault.exe	96

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	toskalnl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2952	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	86
PID 1620 wrote to memory of 2952	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	86
PID 1620 wrote to memory of 2952	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	86
PID 1620 wrote to memory of 1736	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	88
PID 1620 wrote to memory of 1736	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	88
PID 1620 wrote to memory of 1736	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	88
PID 1620 wrote to memory of 668	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	90
PID 1620 wrote to memory of 668	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	90
PID 1620 wrote to memory of 668	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	90
PID 1620 wrote to memory of 4832	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	92
PID 1620 wrote to memory of 4832	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	92
PID 1620 wrote to memory of 4832	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	92
PID 1620 wrote to memory of 5044	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	94
PID 1620 wrote to memory of 5044	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	94
PID 1620 wrote to memory of 5044	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	94
PID 1620 wrote to memory of 5008	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	97
PID 1620 wrote to memory of 5008	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	97
PID 1620 wrote to memory of 5008	1620	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	97
PID 4624 wrote to memory of 452	4624	toskalnl.exe	102
PID 4624 wrote to memory of 452	4624	toskalnl.exe	102
PID 4624 wrote to memory of 452	4624	toskalnl.exe	102
PID 4624 wrote to memory of 452	4624	toskalnl.exe	102
PID 4624 wrote to memory of 452	4624	toskalnl.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ifmulbdx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\toskalnl.exe" C:\Windows\SysWOW64\ifmulbdx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ifmulbdx binPath= "C:\Windows\SysWOW64\ifmulbdx\toskalnl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ifmulbdx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ifmulbdx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5044
- 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:5008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1620 -s 1364
  2⤵
  - Program crash
  PID:3892

C:\Windows\SysWOW64\ifmulbdx\toskalnl.exe
C:\Windows\SysWOW64\ifmulbdx\toskalnl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 512
  2⤵
  - Program crash
  PID:1636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1620 -ip 1620
1⤵
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4624 -ip 4624
1⤵
PID:624

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

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Downloads

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

Filesize
13.9MB

MD5
026997c11b816b73a253dafcee1ce2f0

SHA1
5b741ad41a96f14859297105a44acfdeee641b8b

SHA256
f1ef134b94d1efcabeae5ef965d609d8ec59a0734bb5e070baef8d218123640d

SHA512
15080ff15173f82a4f61cf92f3e1ec5f2336b5f4a0a695faa2c160f674df90912498389a8a731106a276779a303bb510b50c0d3c49ddd1c81b5fe75f7729dd1c

Download Submit
memory/452-16-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/452-14-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/452-17-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/1620-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1620-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1620-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1620-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1620-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1620-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/4624-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4624-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4624-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4624-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads