tofsee | fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 02:32

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General

Target

JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe
Size

13.2MB
MD5

d76e05043d64bf66c8b6a43f3bb0c3a6
SHA1

aa49363192ed4193bca7288208309fcecdccf96d
SHA256

fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802
SHA512

0e9064934779bafce379484d8c00c538c1e61a030f0dce913b4d6e46b40d9e22ce30a43e9764fe5db32c64f9d5a61827ea8047555dd74a6f8f442a77fb2e52fc
SSDEEP

49152:W0Qlolqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqa:W0Qy

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\ttnvrnpo = "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
2788	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\ttnvrnpo\ImagePath = "C:\\Windows\\SysWOW64\\ttnvrnpo\\pueztfce.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2792	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	pueztfce.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2632 set thread context of 2792	2632	pueztfce.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2720	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.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	pueztfce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2536	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	30
PID 2404 wrote to memory of 2536	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	30
PID 2404 wrote to memory of 2536	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	30
PID 2404 wrote to memory of 2536	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	30
PID 2404 wrote to memory of 2112	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	32
PID 2404 wrote to memory of 2112	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	32
PID 2404 wrote to memory of 2112	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	32
PID 2404 wrote to memory of 2112	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	32
PID 2404 wrote to memory of 2720	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	34
PID 2404 wrote to memory of 2720	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	34
PID 2404 wrote to memory of 2720	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	34
PID 2404 wrote to memory of 2720	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	34
PID 2404 wrote to memory of 2772	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	36
PID 2404 wrote to memory of 2772	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	36
PID 2404 wrote to memory of 2772	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	36
PID 2404 wrote to memory of 2772	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	36
PID 2404 wrote to memory of 2860	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	38
PID 2404 wrote to memory of 2860	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	38
PID 2404 wrote to memory of 2860	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	38
PID 2404 wrote to memory of 2860	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	38
PID 2404 wrote to memory of 2788	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	41
PID 2404 wrote to memory of 2788	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	41
PID 2404 wrote to memory of 2788	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	41
PID 2404 wrote to memory of 2788	2404	JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe	41
PID 2632 wrote to memory of 2792	2632	pueztfce.exe	43
PID 2632 wrote to memory of 2792	2632	pueztfce.exe	43
PID 2632 wrote to memory of 2792	2632	pueztfce.exe	43
PID 2632 wrote to memory of 2792	2632	pueztfce.exe	43
PID 2632 wrote to memory of 2792	2632	pueztfce.exe	43
PID 2632 wrote to memory of 2792	2632	pueztfce.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ttnvrnpo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pueztfce.exe" C:\Windows\SysWOW64\ttnvrnpo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ttnvrnpo binPath= "C:\Windows\SysWOW64\ttnvrnpo\pueztfce.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ttnvrnpo "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 ttnvrnpo
  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:2788

C:\Windows\SysWOW64\ttnvrnpo\pueztfce.exe
C:\Windows\SysWOW64\ttnvrnpo\pueztfce.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fb47837ab6258ecec5ee4c3bc7a193f026ce1a39ca6b490cc8990b36e7d3e802.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632
- 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:2792

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\pueztfce.exe

Filesize
14.8MB

MD5
f175a6a4672f2c4383acc46aefdf1713

SHA1
77ba601ebe6d68905a352e01e59372914d4c80fd

SHA256
5c8dfa0c00160c0b9d039186c61b5cf953d7e89a00fe2e404d363d033b5df76b

SHA512
16e055e6c9ef1869bf553e1d1046a3efde0f309ff08bed7d6bcf80a2389de376cb85e621ffa2ac4ab00a8e60abee32fd3467f92d5fa810f3f885a95d834e6ebc

Download Submit
memory/2404-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

Filesize
1024KB

Download
memory/2404-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2404-4-0x0000000000400000-0x0000000002BA2000-memory.dmp

Filesize
39.6MB

Download
memory/2404-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2404-9-0x0000000000400000-0x0000000002BA2000-memory.dmp

Filesize
39.6MB

Download
memory/2632-17-0x0000000000400000-0x0000000002BA2000-memory.dmp

Filesize
39.6MB

Download
memory/2792-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads