tofsee | d964d79c457a25804009d5d23d8a4552b08baefb122eeb64a2514e169f7eadfa

General

Target

202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe
Size

14.8MB
MD5

2fed4f867f1b3b5a3f1fe632c09160f0
SHA1

b5209a5cfc4f2ebe1a39041675c7d985fc4dbbea
SHA256

d964d79c457a25804009d5d23d8a4552b08baefb122eeb64a2514e169f7eadfa
SHA512

74809b8a70806be6df304181ce9dd3762203cfcc7eb34d13d4a9fae334f860d887184eabab4343ecfbf738c18ea4a409c7c148b398b15b9985a5db8abef01b7c
SSDEEP

6144:7+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:7+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee discovery evasion 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
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

4308 netsh.exe

pid	process
4308	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\fuikrbuz\ImagePath = "C:\\Windows\\SysWOW64\\fuikrbuz\\ulehobnm.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

Processes:

202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4700 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ulehobnm.exe

pid process

4504 ulehobnm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ulehobnm.exe

description pid process target process

PID 4504 set thread context of 4700 4504 ulehobnm.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2192 sc.exe
4472 sc.exe
2960 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4700	svchost.exe

pid	process
4504	ulehobnm.exe

description	pid	process	target process
PID 4504 set thread context of 4700	4504	ulehobnm.exe	svchost.exe

pid	process
2192	sc.exe
4472	sc.exe
2960	sc.exe

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

Processes:

netsh.exe

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

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

Processes:

sc.exesvchost.exe202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.execmd.exesc.exesc.execmd.exenetsh.exeulehobnm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ulehobnm.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exeulehobnm.exe

description	pid	process	target process
PID 1000 wrote to memory of 2740	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	cmd.exe
PID 1000 wrote to memory of 2740	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	cmd.exe
PID 1000 wrote to memory of 2740	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	cmd.exe
PID 1000 wrote to memory of 3368	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	cmd.exe
PID 1000 wrote to memory of 3368	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	cmd.exe
PID 1000 wrote to memory of 3368	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	cmd.exe
PID 1000 wrote to memory of 2192	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 2192	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 2192	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 4472	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 4472	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 4472	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 2960	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 2960	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 2960	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	sc.exe
PID 1000 wrote to memory of 4308	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	netsh.exe
PID 1000 wrote to memory of 4308	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	netsh.exe
PID 1000 wrote to memory of 4308	1000	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	netsh.exe
PID 4504 wrote to memory of 4700	4504	ulehobnm.exe	svchost.exe
PID 4504 wrote to memory of 4700	4504	ulehobnm.exe	svchost.exe
PID 4504 wrote to memory of 4700	4504	ulehobnm.exe	svchost.exe
PID 4504 wrote to memory of 4700	4504	ulehobnm.exe	svchost.exe
PID 4504 wrote to memory of 4700	4504	ulehobnm.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe
"C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fuikrbuz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ulehobnm.exe" C:\Windows\SysWOW64\fuikrbuz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fuikrbuz binPath= "C:\Windows\SysWOW64\fuikrbuz\ulehobnm.exe /d\"C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fuikrbuz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fuikrbuz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- 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:4308

C:\Windows\SysWOW64\fuikrbuz\ulehobnm.exe
C:\Windows\SysWOW64\fuikrbuz\ulehobnm.exe /d"C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4700

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\ulehobnm.exe

Filesize
10.9MB

MD5
65cf0e98f14ad14a81e68a2f7deafded

SHA1
60990557f63a70c695bbbf7bf67f95044ad13a1f

SHA256
a3c2b432d36ec0b0263efd82d4b97c00c5703e2ff9b9204a9b41dcf145b07b2a

SHA512
549f1ae555227f45a4e7ca654b3968641d176141f3366eabcdaf0086ec472a7eb28dad078508ba5dc5fab67e65fb26c5683e540b9654ac718ad6fcad3a47bede

Download Submit
memory/1000-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/1000-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1000-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1000-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4504-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4504-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4504-14-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4700-11-0x00000000001E0000-0x00000000001F5000-memory.dmp

Filesize
84KB

Download
memory/4700-15-0x00000000001E0000-0x00000000001F5000-memory.dmp

Filesize
84KB

Download
memory/4700-16-0x00000000001E0000-0x00000000001F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads