tofsee | 103d6f764e3a1d823563157557c9a5d875596f28fb1d305a361309832beed07c

General

Target

2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe
Size

11.3MB
MD5

06bd1eaff94ed6673544a046395e863a
SHA1

986cff31eda9d82dd0a461181c59d804fc6b3caf
SHA256

103d6f764e3a1d823563157557c9a5d875596f28fb1d305a361309832beed07c
SHA512

9d7bfeef59c3110926d3379ac6a53c76e59449de890d3dc1481c2985cbe3cd6e6fc7d28eaf2a73749722cc2e3bad713f9dc0bb2cd097a3c78169c23a62f674e1
SSDEEP

6144:wXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:wXzuKJ8GD96ySzTcANnQMMMMMMMb

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
1816	netsh.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
3164	nlsonwul.exe

Launches sc.exe 3 IoCs

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

pid	Process
1504	sc.exe
3700	sc.exe
4912	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 1 IoCs

pid	pid_target	Process	procid_target
3092	856	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 7 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	sc.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	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 856 wrote to memory of 4816	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	97
PID 856 wrote to memory of 4816	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	97
PID 856 wrote to memory of 4816	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	97
PID 856 wrote to memory of 4624	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	99
PID 856 wrote to memory of 4624	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	99
PID 856 wrote to memory of 4624	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	99
PID 856 wrote to memory of 1504	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	101
PID 856 wrote to memory of 1504	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	101
PID 856 wrote to memory of 1504	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	101
PID 856 wrote to memory of 3700	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	103
PID 856 wrote to memory of 3700	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	103
PID 856 wrote to memory of 3700	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	103
PID 856 wrote to memory of 4912	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	105
PID 856 wrote to memory of 4912	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	105
PID 856 wrote to memory of 4912	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	105
PID 856 wrote to memory of 1816	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	108
PID 856 wrote to memory of 1816	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	108
PID 856 wrote to memory of 1816	856	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	108

C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pifwdqof\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nlsonwul.exe" C:\Windows\SysWOW64\pifwdqof\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pifwdqof binPath= "C:\Windows\SysWOW64\pifwdqof\nlsonwul.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pifwdqof "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pifwdqof
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4912
- 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:1816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 1040
  2⤵
  - Program crash
  PID:3092

C:\Windows\SysWOW64\pifwdqof\nlsonwul.exe
C:\Windows\SysWOW64\pifwdqof\nlsonwul.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:3164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 856 -ip 856
1⤵
PID:4632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

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

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

1

T1562.004

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\nlsonwul.exe

Filesize
11.8MB

MD5
1c56146e0936f46aa26cb35415c28218

SHA1
d7592f9a2402061619382c9a2e0489f28f2a7add

SHA256
6cea029c5cf96d0a8d86f547b3307b7a99b1408bf23aa8528d6b589bc420ace1

SHA512
d24037f9181c43d98aa32698d85a890424e76fd8e68775a01e4047f959832465934125cc5000bb435cd601925349f1daecc9e356f94799f64eb8ce9eb2f684f4

Download Submit
memory/856-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/856-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/856-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/856-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/856-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/856-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads