tofsee | dce5b9da95d9d01aa4be5091d9cdcc52456d04f5e52385b79bc7887410eeea7e

Analysis

max time kernel
143s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 09:58

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General

Target

2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe
Size

13.2MB
MD5

7805744de467df9742263b9b6bad88db
SHA1

f65a57962202de0ab0264ea1c5d5193a2f4bd349
SHA256

dce5b9da95d9d01aa4be5091d9cdcc52456d04f5e52385b79bc7887410eeea7e
SHA512

b15550cc947017eec88d2fb8ad96fed34f48fd998dca4c7f5efbc789889aefb78264908e054a35b63d47d9c3e6eb2eee2fb7e9e41bf7fb5c5af20f0a9d84298e
SSDEEP

196608:H3aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa+:H

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
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\gvdkfijf = "0"	svchost.exe

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
2728	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\gvdkfijf\ImagePath = "C:\\Windows\\SysWOW64\\gvdkfijf\\rrqwhvcf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1204	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2300	rrqwhvcf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2300 set thread context of 1204	2300	rrqwhvcf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2108	sc.exe
2780	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rrqwhvcf.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 1712	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	30
PID 2568 wrote to memory of 1712	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	30
PID 2568 wrote to memory of 1712	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	30
PID 2568 wrote to memory of 1712	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	30
PID 2568 wrote to memory of 2532	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	32
PID 2568 wrote to memory of 2532	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	32
PID 2568 wrote to memory of 2532	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	32
PID 2568 wrote to memory of 2532	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	32
PID 2568 wrote to memory of 2108	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	34
PID 2568 wrote to memory of 2108	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	34
PID 2568 wrote to memory of 2108	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	34
PID 2568 wrote to memory of 2108	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	34
PID 2568 wrote to memory of 2780	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	36
PID 2568 wrote to memory of 2780	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	36
PID 2568 wrote to memory of 2780	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	36
PID 2568 wrote to memory of 2780	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	36
PID 2568 wrote to memory of 2484	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	38
PID 2568 wrote to memory of 2484	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	38
PID 2568 wrote to memory of 2484	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	38
PID 2568 wrote to memory of 2484	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	38
PID 2568 wrote to memory of 2728	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	40
PID 2568 wrote to memory of 2728	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	40
PID 2568 wrote to memory of 2728	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	40
PID 2568 wrote to memory of 2728	2568	2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe	40
PID 2300 wrote to memory of 1204	2300	rrqwhvcf.exe	43
PID 2300 wrote to memory of 1204	2300	rrqwhvcf.exe	43
PID 2300 wrote to memory of 1204	2300	rrqwhvcf.exe	43
PID 2300 wrote to memory of 1204	2300	rrqwhvcf.exe	43
PID 2300 wrote to memory of 1204	2300	rrqwhvcf.exe	43
PID 2300 wrote to memory of 1204	2300	rrqwhvcf.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gvdkfijf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rrqwhvcf.exe" C:\Windows\SysWOW64\gvdkfijf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gvdkfijf binPath= "C:\Windows\SysWOW64\gvdkfijf\rrqwhvcf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gvdkfijf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gvdkfijf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2484
- 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:2728

C:\Windows\SysWOW64\gvdkfijf\rrqwhvcf.exe
C:\Windows\SysWOW64\gvdkfijf\rrqwhvcf.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-03_7805744de467df9742263b9b6bad88db_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1204

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

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

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

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

Filesize
14.7MB

MD5
a2a0f732335f8cb327b87a4df3984fff

SHA1
ac2b722915a368dd679a460fa2ed5fa899f5bac0

SHA256
49569b649716b4f0c699b2806b7d772a45e562819e315472fea545bfc9bbfd78

SHA512
2b30de1bde53df083b7ee4ac3a83b3423edcd2818eae1e02299e0a7c45738c79f54d5acf914dcd15d1fe5b39596c4947b8bd441e1166a451c1d4c18005b583f7

Download Submit
memory/1204-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1204-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1204-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1204-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1204-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2300-17-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2568-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-6-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2568-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/2568-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2568-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads