tofsee | 1d57ced8656b69f8b333b0d53d3950fa5c44b2489d259040ed46d309338be96e

Analysis

max time kernel
146s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/08/2024, 18:27

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General

Target
2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe
Size 14.0MB
Sample240812-w36d3stcmj
SHA256 1d57ced8656b69f8b333b0d53d3950fa5c44b2489d259040ed46d309338be96e
MD5 2fbe79a2d4b23c64c6dc0213491f26c9
SHA1 d0cdbd445c1833fdb35124c280d522c34d093bb3
SHA512 eac38effc4cc548938b97d94bee898461851967968705df6340dc8370685c2d5a24a9b41b1befae455f73ef8316030f91e6812cbd979f20317b2045f86e08340
SSDEEP 6144:4+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:4+r1IeSXMXc7LlxWV4Ug97GZ+ej
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

pid	Process
2884	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\jvvoqpz\ImagePath = "C:\\Windows\\SysWOW64\\jvvoqpz\\tkdgnaml.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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe

Deletes itself 1 IoCs

pid	Process
5100	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4272	tkdgnaml.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4272 set thread context of 5100	4272	tkdgnaml.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
1004	sc.exe
3760	sc.exe
452	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 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.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	tkdgnaml.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 4400	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	92
PID 1524 wrote to memory of 4400	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	92
PID 1524 wrote to memory of 4400	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	92
PID 1524 wrote to memory of 4616	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	94
PID 1524 wrote to memory of 4616	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	94
PID 1524 wrote to memory of 4616	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	94
PID 1524 wrote to memory of 452	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	96
PID 1524 wrote to memory of 452	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	96
PID 1524 wrote to memory of 452	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	96
PID 1524 wrote to memory of 1004	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	98
PID 1524 wrote to memory of 1004	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	98
PID 1524 wrote to memory of 1004	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	98
PID 1524 wrote to memory of 3760	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	102
PID 1524 wrote to memory of 3760	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	102
PID 1524 wrote to memory of 3760	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	102
PID 1524 wrote to memory of 2884	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	105
PID 1524 wrote to memory of 2884	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	105
PID 1524 wrote to memory of 2884	1524	2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe	105
PID 4272 wrote to memory of 5100	4272	tkdgnaml.exe	108
PID 4272 wrote to memory of 5100	4272	tkdgnaml.exe	108
PID 4272 wrote to memory of 5100	4272	tkdgnaml.exe	108
PID 4272 wrote to memory of 5100	4272	tkdgnaml.exe	108
PID 4272 wrote to memory of 5100	4272	tkdgnaml.exe	108

C:\Users\Admin\AppData\Local\Temp\2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jvvoqpz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tkdgnaml.exe" C:\Windows\SysWOW64\jvvoqpz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jvvoqpz binPath= "C:\Windows\SysWOW64\jvvoqpz\tkdgnaml.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jvvoqpz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jvvoqpz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3760
- 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:2884

C:\Windows\SysWOW64\jvvoqpz\tkdgnaml.exe
C:\Windows\SysWOW64\jvvoqpz\tkdgnaml.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-08-12_2fbe79a2d4b23c64c6dc0213491f26c9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5100

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4372,i,3239535018877284530,3457823197501312703,262144 --variations-seed-version --mojo-platform-channel-handle=4400 /prefetch:8
1⤵
PID:4680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tkdgnaml.exe

Path C:\Users\Admin\AppData\Local\Temp\tkdgnaml.exe
Size 13.0MB
SHA256 3fde63e70e6af8c4eb96c35d38967aeda5dfee1f33bec119fd90e8dceab141ca
MD5 fd5e71a58c4e469e0a6ab2ba9b5b9e22
SHA1 175a89372d7f4c7901f59ec6410872f6bbf35c2e
SHA512 97d3610665947e73fdfd0c5969f6ba1578e0dafcea25ec45ce5bdb9379839a847c1cd12e66d25d3e521b1de52768abd960c2576b133989e5a359eb43c9a927a2
SSDEEP 6144:Q+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:Q+r1IeSXMXc7LlxWV4Ug97GZ+ej
MD5 SHA1 SHA512 SSDEEP

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memory/1524-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

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memory/1524-2-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1524-7-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1524-6-0x0000000000400000-0x000000000051A000-memory.dmp

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memory/4272-9-0x0000000000400000-0x000000000051A000-memory.dmp

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memory/4272-10-0x0000000000400000-0x000000000051A000-memory.dmp

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memory/4272-15-0x0000000000400000-0x000000000051A000-memory.dmp

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memory/5100-13-0x0000000001000000-0x0000000001015000-memory.dmp

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memory/5100-11-0x0000000001000000-0x0000000001015000-memory.dmp

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memory/5100-16-0x0000000001000000-0x0000000001015000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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