tofsee | a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 04:49

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General

Target

JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe
Size

153KB
MD5

18e44b2036f311423755b28f21676f82
SHA1

34fffe3ca810d3a4850e60b108bf8b0d140f2c9d
SHA256

a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d
SHA512

927baa57a78dc23f6b9f64cc3fd693db79f7580dd906c6cdebb88a7d539ceede2a5583b8bf15e91d162d3b66833bf568f55b48557466af33f281e80548521126
SSDEEP

1536:g3XTaOHdVEPuyp3GwwsMoqOhvQ87hKWng68gp5ZSuxgRJ355VfyvPt/CD6H:gzamdxyDwGr7hK4z8gp5iL35r6v0O

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\nxjrrjy = "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
2968	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\nxjrrjy\ImagePath = "C:\\Windows\\SysWOW64\\nxjrrjy\\orpkelvf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2936	orpkelvf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 2812	2936	orpkelvf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2620	sc.exe
2124	sc.exe
2844	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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	orpkelvf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2776	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	30
PID 2656 wrote to memory of 2776	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	30
PID 2656 wrote to memory of 2776	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	30
PID 2656 wrote to memory of 2776	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	30
PID 2656 wrote to memory of 2092	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	32
PID 2656 wrote to memory of 2092	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	32
PID 2656 wrote to memory of 2092	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	32
PID 2656 wrote to memory of 2092	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	32
PID 2656 wrote to memory of 2620	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	34
PID 2656 wrote to memory of 2620	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	34
PID 2656 wrote to memory of 2620	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	34
PID 2656 wrote to memory of 2620	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	34
PID 2656 wrote to memory of 2124	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	36
PID 2656 wrote to memory of 2124	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	36
PID 2656 wrote to memory of 2124	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	36
PID 2656 wrote to memory of 2124	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	36
PID 2656 wrote to memory of 2844	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	38
PID 2656 wrote to memory of 2844	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	38
PID 2656 wrote to memory of 2844	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	38
PID 2656 wrote to memory of 2844	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	38
PID 2656 wrote to memory of 2968	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	41
PID 2656 wrote to memory of 2968	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	41
PID 2656 wrote to memory of 2968	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	41
PID 2656 wrote to memory of 2968	2656	JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe	41
PID 2936 wrote to memory of 2812	2936	orpkelvf.exe	43
PID 2936 wrote to memory of 2812	2936	orpkelvf.exe	43
PID 2936 wrote to memory of 2812	2936	orpkelvf.exe	43
PID 2936 wrote to memory of 2812	2936	orpkelvf.exe	43
PID 2936 wrote to memory of 2812	2936	orpkelvf.exe	43
PID 2936 wrote to memory of 2812	2936	orpkelvf.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nxjrrjy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\orpkelvf.exe" C:\Windows\SysWOW64\nxjrrjy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nxjrrjy binPath= "C:\Windows\SysWOW64\nxjrrjy\orpkelvf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nxjrrjy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nxjrrjy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2968

C:\Windows\SysWOW64\nxjrrjy\orpkelvf.exe
C:\Windows\SysWOW64\nxjrrjy\orpkelvf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9785cc2161ee3a09be004bc8346b6d121beaee526de903c66e465178b39471d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- 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:2812

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\orpkelvf.exe

Filesize
11.5MB

MD5
36490f913140f03a71f0256a6522c956

SHA1
0e15e8cb0018e651f8c9fae06ee39e819a5e67d7

SHA256
e958945e3a91579190eaad46b4da18173b0efdc80ba4db14650bbbf9dc5ed94c

SHA512
b371defe27ce1fcac0626fae3524364c2cbd9c175aa0615764d371c728c467f289d0d7913f8e22816f5a6efd52b02a62baf6eabbb4868c10cb63bd3c1e6af769

Download Submit
memory/2656-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2656-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2656-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2656-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2656-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2656-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/2812-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads