tofsee | 7cae49537cb6924e95212c0cb4c79a9f3b86a652e085b733888052890b7ec68e

General

Target

2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe
Size

12.3MB
MD5

b5b8baadae1b217da5ad840ba6712a03
SHA1

402c25bf0813af7640a96aeed48ee9ff5fcd4324
SHA256

7cae49537cb6924e95212c0cb4c79a9f3b86a652e085b733888052890b7ec68e
SHA512

7fd604b1329e8e61c904a4b7231d31e5cd06743fad8093961a06c3def34409297660525b236c28caf45cfae40f17408fe1ebc5313d80bd72a44b5fff803e7961
SSDEEP

49152:rVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGe:rVdrl/9zG

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
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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4184	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\zibumrjm\ImagePath = "C:\\Windows\\SysWOW64\\zibumrjm\\hgsotdna.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe

Deletes itself 1 IoCs

pid	Process
5028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3192	hgsotdna.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3192 set thread context of 5028	3192	hgsotdna.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
4764	sc.exe
4480	sc.exe
2484	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1036	116	WerFault.exe	82
3204	3192	WerFault.exe	100

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	hgsotdna.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 3900	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	88
PID 116 wrote to memory of 3900	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	88
PID 116 wrote to memory of 3900	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	88
PID 116 wrote to memory of 4056	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	92
PID 116 wrote to memory of 4056	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	92
PID 116 wrote to memory of 4056	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	92
PID 116 wrote to memory of 4480	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	94
PID 116 wrote to memory of 4480	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	94
PID 116 wrote to memory of 4480	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	94
PID 116 wrote to memory of 2484	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	96
PID 116 wrote to memory of 2484	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	96
PID 116 wrote to memory of 2484	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	96
PID 116 wrote to memory of 4764	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	98
PID 116 wrote to memory of 4764	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	98
PID 116 wrote to memory of 4764	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	98
PID 116 wrote to memory of 4184	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	101
PID 116 wrote to memory of 4184	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	101
PID 116 wrote to memory of 4184	116	2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe	101
PID 3192 wrote to memory of 5028	3192	hgsotdna.exe	108
PID 3192 wrote to memory of 5028	3192	hgsotdna.exe	108
PID 3192 wrote to memory of 5028	3192	hgsotdna.exe	108
PID 3192 wrote to memory of 5028	3192	hgsotdna.exe	108
PID 3192 wrote to memory of 5028	3192	hgsotdna.exe	108

C:\Users\Admin\AppData\Local\Temp\2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zibumrjm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hgsotdna.exe" C:\Windows\SysWOW64\zibumrjm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zibumrjm binPath= "C:\Windows\SysWOW64\zibumrjm\hgsotdna.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4480
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zibumrjm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zibumrjm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4764
- 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:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 652
  2⤵
  - Program crash
  PID:1036

C:\Windows\SysWOW64\zibumrjm\hgsotdna.exe
C:\Windows\SysWOW64\zibumrjm\hgsotdna.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b5b8baadae1b217da5ad840ba6712a03_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 528
  2⤵
  - Program crash
  PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 116 -ip 116
1⤵
PID:3880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3192 -ip 3192
1⤵
PID:1460

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\hgsotdna.exe

Filesize
13.0MB

MD5
b75e571255ba784ec0510e6a9f374359

SHA1
8dec7cc3ead00045985ccdd80af1bc79ba0f9807

SHA256
36840272f224f5e98271a281e369a57c65650f62b1e52d5cbc0653f1222d2ebe

SHA512
9ec85882e8df7ce5fbfbd618dd0c92c675eac7b5fb2751ffb77e67a7c7e5e530d988d06ff29f19a0211eae3892609adcc73f0be073c702216f23a4797c55f996

Download Submit
memory/116-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/116-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/116-2-0x00000000006C0000-0x00000000006D3000-memory.dmp

Filesize
76KB

Download
memory/116-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/116-8-0x00000000006C0000-0x00000000006D3000-memory.dmp

Filesize
76KB

Download
memory/116-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/3192-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3192-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3192-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3192-18-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/5028-14-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/5028-16-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/5028-17-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads