tofsee | e000777678e885983bbbea7fc659bcf79c7c4ba38d548d3411a58347666dc92a

General

Target

2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe
Size

14.9MB
MD5

59f4267dae33e83b59d952b7d5fe31bc
SHA1

d1e6de12cc46bdb05943adde0c03b4b212685efb
SHA256

e000777678e885983bbbea7fc659bcf79c7c4ba38d548d3411a58347666dc92a
SHA512

927ffd0a7382a54b6561c5d2dc0b948e95498f56dfa194bec4c35f18c2af45e27ed496c884a0d3702537dc50c57fcd967cadda39464e7979e6fe7715f56ee14b
SSDEEP

6144:v+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:v+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee 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

pid	Process
964	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\kdiepwjh\ImagePath = "C:\\Windows\\SysWOW64\\kdiepwjh\\ribelykj.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe

Deletes itself 1 IoCs

pid	Process
3860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1556	ribelykj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1556 set thread context of 3860	1556	ribelykj.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
2440	sc.exe
3376	sc.exe
4648	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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 792 wrote to memory of 3120	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	90
PID 792 wrote to memory of 3120	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	90
PID 792 wrote to memory of 3120	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	90
PID 792 wrote to memory of 780	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	92
PID 792 wrote to memory of 780	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	92
PID 792 wrote to memory of 780	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	92
PID 792 wrote to memory of 3376	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	94
PID 792 wrote to memory of 3376	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	94
PID 792 wrote to memory of 3376	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	94
PID 792 wrote to memory of 4648	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	96
PID 792 wrote to memory of 4648	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	96
PID 792 wrote to memory of 4648	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	96
PID 792 wrote to memory of 2440	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	98
PID 792 wrote to memory of 2440	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	98
PID 792 wrote to memory of 2440	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	98
PID 792 wrote to memory of 964	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	100
PID 792 wrote to memory of 964	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	100
PID 792 wrote to memory of 964	792	2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe	100
PID 1556 wrote to memory of 3860	1556	ribelykj.exe	105
PID 1556 wrote to memory of 3860	1556	ribelykj.exe	105
PID 1556 wrote to memory of 3860	1556	ribelykj.exe	105
PID 1556 wrote to memory of 3860	1556	ribelykj.exe	105
PID 1556 wrote to memory of 3860	1556	ribelykj.exe	105

C:\Users\Admin\AppData\Local\Temp\2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kdiepwjh\
  2⤵
  PID:3120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ribelykj.exe" C:\Windows\SysWOW64\kdiepwjh\
  2⤵
  PID:780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kdiepwjh binPath= "C:\Windows\SysWOW64\kdiepwjh\ribelykj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:3376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kdiepwjh "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:4648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kdiepwjh
  2⤵
  - Launches sc.exe
  PID:2440
- 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
  PID:964

C:\Windows\SysWOW64\kdiepwjh\ribelykj.exe
C:\Windows\SysWOW64\kdiepwjh\ribelykj.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-29_59f4267dae33e83b59d952b7d5fe31bc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:3860

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 --no-appcompat-clear --mojo-platform-channel-handle=2212 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:4468

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.9MB

MD5
cf962801e797acd716f3376e8ad781f2

SHA1
e34f4f135da20bf194ec01ef3f24213aaa75f929

SHA256
5838b25850a3d5c26ba706f74a10bf41569298c80faeb9541d85b058ef5d974d

SHA512
ab388a33b3ee52453e4a5dfc4b6a11e4475db41911ab492ad4ba34147cc197dee1f83c69d6d0fc7f49c8077b21c5d8791de116ccf22c307b4a55765b16e01527

Download Submit
memory/792-1-0x0000000000760000-0x0000000000860000-memory.dmp

Filesize
1024KB

Download
memory/792-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/792-5-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/792-6-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1556-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1556-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1556-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3860-11-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/3860-14-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/3860-16-0x0000000000980000-0x0000000000995000-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