tofsee | a5c7112ff3e20b3f66cad4ceaa8c395dc157a94fad24d5aed5202d53c6714306

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 13:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe
Size

10.2MB
MD5

a841a4cf146be49d8368cb6b92aea1be
SHA1

482a1fbe8a24b61c095db3c32a8ee22534ed7af9
SHA256

a5c7112ff3e20b3f66cad4ceaa8c395dc157a94fad24d5aed5202d53c6714306
SHA512

d7122080cbb2fa84183030afb917e8407617c62291adde3048342fc9b38ec0b72d0ba38f224d81a1b18609ece5b63c3f3207ceaf1028b6e21f7a6be1cd3b03eb
SSDEEP

24576:U/FfqVdOBr70Fm0999999999999999999999999999999999999999999999999V:sFU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\rolcsozq = "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
2156	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\rolcsozq\ImagePath = "C:\\Windows\\SysWOW64\\rolcsozq\\zsnzdsd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	zsnzdsd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3028 set thread context of 2804	3028	zsnzdsd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2996	sc.exe
2328	sc.exe
2920	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 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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zsnzdsd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2272	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	30
PID 2124 wrote to memory of 2272	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	30
PID 2124 wrote to memory of 2272	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	30
PID 2124 wrote to memory of 2272	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	30
PID 2124 wrote to memory of 2956	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	32
PID 2124 wrote to memory of 2956	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	32
PID 2124 wrote to memory of 2956	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	32
PID 2124 wrote to memory of 2956	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	32
PID 2124 wrote to memory of 2996	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	34
PID 2124 wrote to memory of 2996	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	34
PID 2124 wrote to memory of 2996	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	34
PID 2124 wrote to memory of 2996	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	34
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	36
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	36
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	36
PID 2124 wrote to memory of 2328	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	36
PID 2124 wrote to memory of 2920	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	38
PID 2124 wrote to memory of 2920	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	38
PID 2124 wrote to memory of 2920	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	38
PID 2124 wrote to memory of 2920	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	38
PID 2124 wrote to memory of 2156	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	41
PID 2124 wrote to memory of 2156	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	41
PID 2124 wrote to memory of 2156	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	41
PID 2124 wrote to memory of 2156	2124	JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe	41
PID 3028 wrote to memory of 2804	3028	zsnzdsd.exe	43
PID 3028 wrote to memory of 2804	3028	zsnzdsd.exe	43
PID 3028 wrote to memory of 2804	3028	zsnzdsd.exe	43
PID 3028 wrote to memory of 2804	3028	zsnzdsd.exe	43
PID 3028 wrote to memory of 2804	3028	zsnzdsd.exe	43
PID 3028 wrote to memory of 2804	3028	zsnzdsd.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rolcsozq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zsnzdsd.exe" C:\Windows\SysWOW64\rolcsozq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rolcsozq binPath= "C:\Windows\SysWOW64\rolcsozq\zsnzdsd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rolcsozq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rolcsozq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- 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:2156

C:\Windows\SysWOW64\rolcsozq\zsnzdsd.exe
C:\Windows\SysWOW64\rolcsozq\zsnzdsd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a841a4cf146be49d8368cb6b92aea1be.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- 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:2804

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.6MB

MD5
5fd3e1cc211e6e8bfa39f8ff61edd247

SHA1
7f73965dfe3cc81ae94441a90f02813ee2400089

SHA256
68140129513f23e6f8ae4ace60bcd854a78119f14d5b3e11d7505159a02a64df

SHA512
7b50e9487ce979f1e9b4d9c2ea0e68fd5d9b1d1d8f791f317333772ad44a604f8bae455d38d852927ee4310614142d698ad994d4f0703656fa6c00a63376e0c8

Download Submit
memory/2124-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/2124-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2124-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2804-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-17-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads