tofsee | ea9c33f87addc3ca9c0ee0c510a022c879a81863b3c6966e8b398a588a549b86

General

Target

2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe
Size

12.0MB
MD5

67e1f186a1b891f22c2e76e7427fd639
SHA1

bbc15cb6b68329ad3de7040b8b68a684d6aa2320
SHA256

ea9c33f87addc3ca9c0ee0c510a022c879a81863b3c6966e8b398a588a549b86
SHA512

3b26c6053b35b44d84a2e9fb5ee50f643a1e9c8dd1562b854cf5fad655aac4cb7ed0d1496cca2cc7d7887825c0ac9a47dcbb92a65187f13048cb4a959557b620
SSDEEP

49152:wVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGu:wVdrl/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

Processes:

netsh.exe

pid process

4604 netsh.exe

pid	process
4604	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\xwrrcehm\ImagePath = "C:\\Windows\\SysWOW64\\xwrrcehm\\gjrrpnra.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:

2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3392 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

gjrrpnra.exe

pid process

1760 gjrrpnra.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

gjrrpnra.exe

description pid process target process

PID 1760 set thread context of 3392 1760 gjrrpnra.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

1204 sc.exe
4280 sc.exe
4892 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3392	svchost.exe

pid	process
1760	gjrrpnra.exe

description	pid	process	target process
PID 1760 set thread context of 3392	1760	gjrrpnra.exe	svchost.exe

pid	process
1204	sc.exe
4280	sc.exe
4892	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 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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4120 448 WerFault.exe 2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe
2500 1760 WerFault.exe gjrrpnra.exe

pid	pid_target	process	target process
4120	448	WerFault.exe	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe
2500	1760	WerFault.exe	gjrrpnra.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.exe2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.execmd.exesc.exesc.exenetsh.exegjrrpnra.execmd.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	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gjrrpnra.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exegjrrpnra.exe

description	pid	process	target process
PID 448 wrote to memory of 3644	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	cmd.exe
PID 448 wrote to memory of 3644	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	cmd.exe
PID 448 wrote to memory of 3644	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	cmd.exe
PID 448 wrote to memory of 1976	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	cmd.exe
PID 448 wrote to memory of 1976	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	cmd.exe
PID 448 wrote to memory of 1976	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	cmd.exe
PID 448 wrote to memory of 1204	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 1204	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 1204	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 4280	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 4280	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 4280	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 4892	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 4892	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 4892	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	sc.exe
PID 448 wrote to memory of 4604	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	netsh.exe
PID 448 wrote to memory of 4604	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	netsh.exe
PID 448 wrote to memory of 4604	448	2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe	netsh.exe
PID 1760 wrote to memory of 3392	1760	gjrrpnra.exe	svchost.exe
PID 1760 wrote to memory of 3392	1760	gjrrpnra.exe	svchost.exe
PID 1760 wrote to memory of 3392	1760	gjrrpnra.exe	svchost.exe
PID 1760 wrote to memory of 3392	1760	gjrrpnra.exe	svchost.exe
PID 1760 wrote to memory of 3392	1760	gjrrpnra.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xwrrcehm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gjrrpnra.exe" C:\Windows\SysWOW64\xwrrcehm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xwrrcehm binPath= "C:\Windows\SysWOW64\xwrrcehm\gjrrpnra.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xwrrcehm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xwrrcehm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4892
- 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:4604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 1268
  2⤵
  - Program crash
  PID:4120

C:\Windows\SysWOW64\xwrrcehm\gjrrpnra.exe
C:\Windows\SysWOW64\xwrrcehm\gjrrpnra.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-06_67e1f186a1b891f22c2e76e7427fd639_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1760 -s 512
  2⤵
  - Program crash
  PID:2500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 448 -ip 448
1⤵
PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1760 -ip 1760
1⤵
PID:2036

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\gjrrpnra.exe

Filesize
11.4MB

MD5
82ddfe28050958289c242f672a3b8497

SHA1
17ea894415e2e07fb1d95d95ba3f1a9bbe59a570

SHA256
c06bf081db47073c7e0ee8ffc6d8d2b4daf4439032727c557fb048635a74a980

SHA512
266964eac552408f6cc907c4c84f0a41850ebe991b6c6aed1d4ed43c73d6c55f35f8bdca136bc169b1a62e100265d13904f3d725b29ae74b346af566eed294e8

Download Submit
memory/448-8-0x0000000000780000-0x0000000000793000-memory.dmp

Filesize
76KB

Download
memory/448-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/448-2-0x0000000000780000-0x0000000000793000-memory.dmp

Filesize
76KB

Download
memory/448-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/448-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/448-1-0x00000000007C0000-0x00000000008C0000-memory.dmp

Filesize
1024KB

Download
memory/1760-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1760-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1760-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1760-19-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3392-14-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/3392-16-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/3392-17-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads