tofsee | 09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 15:49

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General

Target

JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe
Size

355KB
MD5

57cd9fbf026f6c5277a21f925ea52737
SHA1

093857eba7ee258cdce50ae072fe363b27defad2
SHA256

09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c
SHA512

73e0bd125ca54972c1834c04eca952dcec9b3b780cdd08ee98f2ee600cfec470eb01ea4a5e0e8d9bea78988c4b225f118e39c4eabd079f23332cb502e41b8b29
SSDEEP

6144:j4EuKO2UPH0UdX3cnULul9oL1GJyR5Yw2gQSyb8KsNoeNS:j3dUPH3Z3cnULI9oBGJyR5wgjybsZN

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\ggrbxouu = "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
2932	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\ggrbxouu\ImagePath = "C:\\Windows\\SysWOW64\\ggrbxouu\\hxseykog.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3044	hxseykog.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 2712	3044	hxseykog.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2172	sc.exe
2780	sc.exe
2888	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	hxseykog.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.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	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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 1736	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	30
PID 2624 wrote to memory of 1736	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	30
PID 2624 wrote to memory of 1736	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	30
PID 2624 wrote to memory of 1736	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	30
PID 2624 wrote to memory of 1716	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	32
PID 2624 wrote to memory of 1716	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	32
PID 2624 wrote to memory of 1716	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	32
PID 2624 wrote to memory of 1716	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	32
PID 2624 wrote to memory of 2172	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	34
PID 2624 wrote to memory of 2172	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	34
PID 2624 wrote to memory of 2172	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	34
PID 2624 wrote to memory of 2172	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	34
PID 2624 wrote to memory of 2780	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	36
PID 2624 wrote to memory of 2780	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	36
PID 2624 wrote to memory of 2780	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	36
PID 2624 wrote to memory of 2780	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	36
PID 2624 wrote to memory of 2888	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	38
PID 2624 wrote to memory of 2888	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	38
PID 2624 wrote to memory of 2888	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	38
PID 2624 wrote to memory of 2888	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	38
PID 2624 wrote to memory of 2932	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	41
PID 2624 wrote to memory of 2932	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	41
PID 2624 wrote to memory of 2932	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	41
PID 2624 wrote to memory of 2932	2624	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	41
PID 3044 wrote to memory of 2712	3044	hxseykog.exe	43
PID 3044 wrote to memory of 2712	3044	hxseykog.exe	43
PID 3044 wrote to memory of 2712	3044	hxseykog.exe	43
PID 3044 wrote to memory of 2712	3044	hxseykog.exe	43
PID 3044 wrote to memory of 2712	3044	hxseykog.exe	43
PID 3044 wrote to memory of 2712	3044	hxseykog.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ggrbxouu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hxseykog.exe" C:\Windows\SysWOW64\ggrbxouu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ggrbxouu binPath= "C:\Windows\SysWOW64\ggrbxouu\hxseykog.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ggrbxouu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ggrbxouu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- 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:2932

C:\Windows\SysWOW64\ggrbxouu\hxseykog.exe
C:\Windows\SysWOW64\ggrbxouu\hxseykog.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- 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:2712

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\hxseykog.exe

Filesize
11.3MB

MD5
d21af6b3a6686ac787516febab135a35

SHA1
3bb921e9060a3ae6f37ff4531b954d12a8aba4b9

SHA256
6f2262d40b7170e9e7157f4e9e62eba03e89635cddb387971356bad724c3588f

SHA512
6c31a181d9702415642dfc2274f6bbd0a9c9930e3a5f6ca3266719b3d932ad14a4a329d9c21bfd0ff109f957ab708e82db480718f3619e63ed973afe3d13b81d

Download Submit
memory/2624-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2624-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2624-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2624-8-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/2624-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2624-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2712-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2712-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2712-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2712-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3044-17-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads