tofsee | adebf698ce7862226c1794aafa272bc8bdd8363ccfb2ed52964912f89f79e61e

General

Target

2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe
Size

14.6MB
MD5

98fa720e04828c3150ee35c8cb30f403
SHA1

d5b7405bd6d33d41b06f12dc8c15dc6abe65db4a
SHA256

adebf698ce7862226c1794aafa272bc8bdd8363ccfb2ed52964912f89f79e61e
SHA512

f0d572dac42f07c94debb447ff084e523dc9e7e7d597ad789f87d0459193db6d3d1e7c20b4afb072ca7bbd54d090524e625ba5f69e30f64ed610699804c3a3b8
SSDEEP

6144:2+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:2+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

Processes:

netsh.exe

pid process

2640 netsh.exe

pid	process
2640	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\nuruohnb\ImagePath = "C:\\Windows\\SysWOW64\\nuruohnb\\ggflwkru.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1700 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ggflwkru.exe

pid process

2292 ggflwkru.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ggflwkru.exe

description pid process target process

PID 2292 set thread context of 1700 2292 ggflwkru.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

3008 sc.exe
2692 sc.exe
2820 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1700	svchost.exe

pid	process
2292	ggflwkru.exe

description	pid	process	target process
PID 2292 set thread context of 1700	2292	ggflwkru.exe	svchost.exe

pid	process
3008	sc.exe
2692	sc.exe
2820	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exeggflwkru.exe

description	pid	process	target process
PID 1780 wrote to memory of 1952	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 1952	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 1952	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 1952	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 2804	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 2804	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 2804	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 2804	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	cmd.exe
PID 1780 wrote to memory of 3008	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 3008	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 3008	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 3008	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2692	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2692	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2692	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2692	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2820	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2820	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2820	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 1780 wrote to memory of 2820	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	sc.exe
PID 2292 wrote to memory of 1700	2292	ggflwkru.exe	svchost.exe
PID 2292 wrote to memory of 1700	2292	ggflwkru.exe	svchost.exe
PID 2292 wrote to memory of 1700	2292	ggflwkru.exe	svchost.exe
PID 2292 wrote to memory of 1700	2292	ggflwkru.exe	svchost.exe
PID 2292 wrote to memory of 1700	2292	ggflwkru.exe	svchost.exe
PID 2292 wrote to memory of 1700	2292	ggflwkru.exe	svchost.exe
PID 1780 wrote to memory of 2640	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	netsh.exe
PID 1780 wrote to memory of 2640	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	netsh.exe
PID 1780 wrote to memory of 2640	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	netsh.exe
PID 1780 wrote to memory of 2640	1780	2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nuruohnb\
  2⤵
  PID:1952
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ggflwkru.exe" C:\Windows\SysWOW64\nuruohnb\
  2⤵
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nuruohnb binPath= "C:\Windows\SysWOW64\nuruohnb\ggflwkru.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:3008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nuruohnb "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nuruohnb
  2⤵
  - Launches sc.exe
  PID:2820
- 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:2640

C:\Windows\SysWOW64\nuruohnb\ggflwkru.exe
C:\Windows\SysWOW64\nuruohnb\ggflwkru.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:1700

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.4MB

MD5
19d0fddfa22a4eff7f9c12246fc2b022

SHA1
446ca6915baaf66115bf8794387a6c87ea359b0a

SHA256
d59e3d1c05d900df232108cdf4f6ea40f455076296cac203f8e1de780d5e30b2

SHA512
9efb6104938d24c3c73a6abd8d76dd1858d1c14a430152d14f56b9865b133d2631544e5115bbd8ca3ab30e6b2dbcd9754707811f832b3a270df25a8519f549f8

Download Submit
memory/1700-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1700-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1700-7-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1700-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1700-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1780-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1780-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/1780-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1780-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2292-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads