tofsee | 53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 03:21

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General

Target

JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe
Size

337KB
MD5

1e438cc75c27318882e50db6524f3553
SHA1

aa0ac3a45ca2fa037c81eedad6807eb480052cf7
SHA256

53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce
SHA512

a43dc2e12593f61d69d33bf04bf9c91824fc7c98cad7d2c78bb7469139ad08232799eefa813999b2d06f32b18428801df0970d58ca8237115b5d66afbc690d9a
SSDEEP

6144:Ed44FG63LsU8ITQQgb4tZqlZ1YQldwxoKbLyY:iFG63LIrQguolZWQjZiLv

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\flmzfmga = "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
2740	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\flmzfmga\ImagePath = "C:\\Windows\\SysWOW64\\flmzfmga\\hqzhvnve.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	hqzhvnve.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 2812	2696	hqzhvnve.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1028	sc.exe
2880	sc.exe
2136	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hqzhvnve.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1260	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	30
PID 1680 wrote to memory of 1260	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	30
PID 1680 wrote to memory of 1260	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	30
PID 1680 wrote to memory of 1260	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	30
PID 1680 wrote to memory of 2344	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	32
PID 1680 wrote to memory of 2344	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	32
PID 1680 wrote to memory of 2344	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	32
PID 1680 wrote to memory of 2344	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	32
PID 1680 wrote to memory of 1028	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	34
PID 1680 wrote to memory of 1028	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	34
PID 1680 wrote to memory of 1028	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	34
PID 1680 wrote to memory of 1028	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	34
PID 1680 wrote to memory of 2880	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	36
PID 1680 wrote to memory of 2880	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	36
PID 1680 wrote to memory of 2880	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	36
PID 1680 wrote to memory of 2880	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	36
PID 1680 wrote to memory of 2136	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	38
PID 1680 wrote to memory of 2136	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	38
PID 1680 wrote to memory of 2136	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	38
PID 1680 wrote to memory of 2136	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	38
PID 1680 wrote to memory of 2740	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	41
PID 1680 wrote to memory of 2740	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	41
PID 1680 wrote to memory of 2740	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	41
PID 1680 wrote to memory of 2740	1680	JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe	41
PID 2696 wrote to memory of 2812	2696	hqzhvnve.exe	43
PID 2696 wrote to memory of 2812	2696	hqzhvnve.exe	43
PID 2696 wrote to memory of 2812	2696	hqzhvnve.exe	43
PID 2696 wrote to memory of 2812	2696	hqzhvnve.exe	43
PID 2696 wrote to memory of 2812	2696	hqzhvnve.exe	43
PID 2696 wrote to memory of 2812	2696	hqzhvnve.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\flmzfmga\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hqzhvnve.exe" C:\Windows\SysWOW64\flmzfmga\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create flmzfmga binPath= "C:\Windows\SysWOW64\flmzfmga\hqzhvnve.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description flmzfmga "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start flmzfmga
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- 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:2740

C:\Windows\SysWOW64\flmzfmga\hqzhvnve.exe
C:\Windows\SysWOW64\flmzfmga\hqzhvnve.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_53a0d8df737edd824241066638b4ecc859f285e2c74e391c7c7b9dc1e1c640ce.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- 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\hqzhvnve.exe

Filesize
12.7MB

MD5
41016c30448793817dfc3a7528099b99

SHA1
ec4a794e7162de17b6fd16cca50a7c99e5674c75

SHA256
5959113486fdd316bcdf25abe27e6a54ae56915d58a830d28e3f0815a0827571

SHA512
29ef1aba16b933aeac3e8ad78081d2cefc260665e85e0b78dc61f4510c9d9d770e4ecc9f6586dcab9663d4151100ba9f415aa9c288327c8ba487feaa4e392223

Download Submit
memory/1680-8-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/1680-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1680-2-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/1680-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1680-7-0x0000000000400000-0x00000000023AA000-memory.dmp

Filesize
31.7MB

Download
memory/1680-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2696-15-0x0000000000400000-0x00000000023AA000-memory.dmp

Filesize
31.7MB

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

Filesize
84KB

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

Filesize
84KB

Download
memory/2812-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

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

Filesize
4KB

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

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads