tofsee | c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 17:31

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General

Target

JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe
Size

290KB
MD5

e758d3f8e1a43e4b8fd0c982394216a0
SHA1

b8713215a45d83019881f18215f044bac9073a4f
SHA256

c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2
SHA512

fd099504787bf3644253ea503cc742ad07fb1abfc96524649137050c9f597950a0686749df76a6afcf54698d7cfe91d24e6062d1f99132b784b9ffac0357493f
SSDEEP

6144:cKda0k5CPY6+hdbbIPyISpx+dGYIS2oWPfG/5J:cK2cPP+hdbbIapKt2O

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

niflheimr.cn

jotunheim.name

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\vlpgiqsl = "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
2596	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\vlpgiqsl\ImagePath = "C:\\Windows\\SysWOW64\\vlpgiqsl\\aatynrgw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	aatynrgw.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile:.repos	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 2588	2660	aatynrgw.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2940	sc.exe
2296	sc.exe
2712	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	aatynrgw.exe
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	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.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

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Control Panel\Buses\Config0 = 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	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Control Panel\Buses	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2816	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	30
PID 2640 wrote to memory of 2816	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	30
PID 2640 wrote to memory of 2816	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	30
PID 2640 wrote to memory of 2816	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	30
PID 2640 wrote to memory of 2704	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	32
PID 2640 wrote to memory of 2704	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	32
PID 2640 wrote to memory of 2704	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	32
PID 2640 wrote to memory of 2704	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	32
PID 2640 wrote to memory of 2940	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	34
PID 2640 wrote to memory of 2940	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	34
PID 2640 wrote to memory of 2940	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	34
PID 2640 wrote to memory of 2940	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	34
PID 2640 wrote to memory of 2296	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	36
PID 2640 wrote to memory of 2296	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	36
PID 2640 wrote to memory of 2296	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	36
PID 2640 wrote to memory of 2296	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	36
PID 2640 wrote to memory of 2712	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	38
PID 2640 wrote to memory of 2712	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	38
PID 2640 wrote to memory of 2712	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	38
PID 2640 wrote to memory of 2712	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	38
PID 2660 wrote to memory of 2588	2660	aatynrgw.exe	41
PID 2660 wrote to memory of 2588	2660	aatynrgw.exe	41
PID 2660 wrote to memory of 2588	2660	aatynrgw.exe	41
PID 2660 wrote to memory of 2588	2660	aatynrgw.exe	41
PID 2660 wrote to memory of 2588	2660	aatynrgw.exe	41
PID 2660 wrote to memory of 2588	2660	aatynrgw.exe	41
PID 2640 wrote to memory of 2596	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	42
PID 2640 wrote to memory of 2596	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	42
PID 2640 wrote to memory of 2596	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	42
PID 2640 wrote to memory of 2596	2640	JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vlpgiqsl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aatynrgw.exe" C:\Windows\SysWOW64\vlpgiqsl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vlpgiqsl binPath= "C:\Windows\SysWOW64\vlpgiqsl\aatynrgw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vlpgiqsl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2296
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vlpgiqsl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:2596

C:\Windows\SysWOW64\vlpgiqsl\aatynrgw.exe
C:\Windows\SysWOW64\vlpgiqsl\aatynrgw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  PID:2588

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\aatynrgw.exe

Filesize
11.6MB

MD5
86b4383ae88013862a3fc5dfbf661332

SHA1
5107f014bf94a82f2a3e10ebca196736cb78d895

SHA256
ae312bb37e4312fa799cb6fa6311f64f45b7b4256788e6c856d5a1537d63018c

SHA512
83895ef79ad4850f685ec99b36272fb19fdce447f838ce5de8a67bca13c7590b957a3511c90a1f91f7b2ff1c4884e3cb9596cc5a9374d9f1703f8c012673547b

Download Submit
memory/2588-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-3-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/2640-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2640-17-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2640-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-15-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/2660-13-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads