tofsee | 9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 00:57

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General

Target

JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe
Size

283KB
MD5

e195bfdd18f903b311011880ebc8137b
SHA1

afc1a2c5616ba8679044268f857b9a8b14515e88
SHA256

9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a
SHA512

53ab4df184d7809435ae72d43e77830ef01cd55d1b4a6ac86353eecf710f327ce9d782d61bae2a54e626ae3887e97e552561b6b110c87aab0ddd308101d65c38
SSDEEP

6144:1sIcItQ9Tbk38eWk/cN0x/US5IjoqcZdje6id:1sIcItQBb9eNcahDqAdje

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\posonuun = "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
2644	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\posonuun\ImagePath = "C:\\Windows\\SysWOW64\\posonuun\\pjflwgye.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	pjflwgye.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2796 set thread context of 2988	2796	pjflwgye.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2420	sc.exe
2772	sc.exe
2860	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pjflwgye.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 1380	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	31
PID 752 wrote to memory of 1380	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	31
PID 752 wrote to memory of 1380	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	31
PID 752 wrote to memory of 1380	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	31
PID 752 wrote to memory of 1940	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	33
PID 752 wrote to memory of 1940	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	33
PID 752 wrote to memory of 1940	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	33
PID 752 wrote to memory of 1940	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	33
PID 752 wrote to memory of 2420	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	35
PID 752 wrote to memory of 2420	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	35
PID 752 wrote to memory of 2420	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	35
PID 752 wrote to memory of 2420	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	35
PID 752 wrote to memory of 2772	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	37
PID 752 wrote to memory of 2772	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	37
PID 752 wrote to memory of 2772	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	37
PID 752 wrote to memory of 2772	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	37
PID 752 wrote to memory of 2860	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	39
PID 752 wrote to memory of 2860	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	39
PID 752 wrote to memory of 2860	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	39
PID 752 wrote to memory of 2860	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	39
PID 752 wrote to memory of 2644	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	42
PID 752 wrote to memory of 2644	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	42
PID 752 wrote to memory of 2644	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	42
PID 752 wrote to memory of 2644	752	JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe	42
PID 2796 wrote to memory of 2988	2796	pjflwgye.exe	44
PID 2796 wrote to memory of 2988	2796	pjflwgye.exe	44
PID 2796 wrote to memory of 2988	2796	pjflwgye.exe	44
PID 2796 wrote to memory of 2988	2796	pjflwgye.exe	44
PID 2796 wrote to memory of 2988	2796	pjflwgye.exe	44
PID 2796 wrote to memory of 2988	2796	pjflwgye.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\posonuun\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pjflwgye.exe" C:\Windows\SysWOW64\posonuun\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create posonuun binPath= "C:\Windows\SysWOW64\posonuun\pjflwgye.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description posonuun "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start posonuun
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- 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:2644

C:\Windows\SysWOW64\posonuun\pjflwgye.exe
C:\Windows\SysWOW64\posonuun\pjflwgye.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cec2ebe9b47146dde04ddcb8f3b5fdf06c37dd715b8e49c0d3c9e41936c3a1a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796
- 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:2988

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\pjflwgye.exe

Filesize
14.2MB

MD5
b75e9402fc95a78e1b5d4214300a5cc7

SHA1
5803838b3b17e441150ac72dc16593ea74e3f152

SHA256
a15aa6d6aa60a631d827fa8a929c63b672eef056eecc4db5f9846fc8422b9f8a

SHA512
38bbcb239f38e106563ecfba6a2eef33ffe5b8202563fc70170c922fc58ff127febe3212c227b4db453de16ddebb163c283fd2a9c5e0318d0172d5f80ce9f119

Download Submit
memory/752-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/752-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/752-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/752-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/752-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/752-1-0x0000000002D40000-0x0000000002E40000-memory.dmp

Filesize
1024KB

Download
memory/2796-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2988-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2988-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads