tofsee | fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 11:11

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General

Target

JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe
Size

271KB
MD5

3f65dae6305ca843e7b9b7df2f74d838
SHA1

2c44df4d74900d500dcf9835f6c80ff84d268a37
SHA256

fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb
SHA512

93d1cd17ec557a46c3ac6b32a08d24ec1c8dd26ad3c5e2fbe7c4a9c7ce7d2ce568913844d18f950d89a05b22ff76b528ae672b5fbcee8e35da41eb49cde43971
SSDEEP

6144:DgfpPeqotkXALxePgCA0+A3Ii4b6gvlVUgJ:kXotkXALQvAi94+g7/

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\gonukqdf = "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
2828	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\gonukqdf\ImagePath = "C:\\Windows\\SysWOW64\\gonukqdf\\tnwgtwbn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	tnwgtwbn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2708	2760	tnwgtwbn.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2308	sc.exe
2716	sc.exe
2800	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	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.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	tnwgtwbn.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 2148 wrote to memory of 2380	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	31
PID 2148 wrote to memory of 2380	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	31
PID 2148 wrote to memory of 2380	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	31
PID 2148 wrote to memory of 2380	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	31
PID 2148 wrote to memory of 2028	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	33
PID 2148 wrote to memory of 2028	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	33
PID 2148 wrote to memory of 2028	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	33
PID 2148 wrote to memory of 2028	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	33
PID 2148 wrote to memory of 2308	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	35
PID 2148 wrote to memory of 2308	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	35
PID 2148 wrote to memory of 2308	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	35
PID 2148 wrote to memory of 2308	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	35
PID 2148 wrote to memory of 2716	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	37
PID 2148 wrote to memory of 2716	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	37
PID 2148 wrote to memory of 2716	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	37
PID 2148 wrote to memory of 2716	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	37
PID 2148 wrote to memory of 2800	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	39
PID 2148 wrote to memory of 2800	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	39
PID 2148 wrote to memory of 2800	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	39
PID 2148 wrote to memory of 2800	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	39
PID 2148 wrote to memory of 2828	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	42
PID 2148 wrote to memory of 2828	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	42
PID 2148 wrote to memory of 2828	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	42
PID 2148 wrote to memory of 2828	2148	JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe	42
PID 2760 wrote to memory of 2708	2760	tnwgtwbn.exe	44
PID 2760 wrote to memory of 2708	2760	tnwgtwbn.exe	44
PID 2760 wrote to memory of 2708	2760	tnwgtwbn.exe	44
PID 2760 wrote to memory of 2708	2760	tnwgtwbn.exe	44
PID 2760 wrote to memory of 2708	2760	tnwgtwbn.exe	44
PID 2760 wrote to memory of 2708	2760	tnwgtwbn.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gonukqdf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnwgtwbn.exe" C:\Windows\SysWOW64\gonukqdf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gonukqdf binPath= "C:\Windows\SysWOW64\gonukqdf\tnwgtwbn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2308
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gonukqdf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gonukqdf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:2828

C:\Windows\SysWOW64\gonukqdf\tnwgtwbn.exe
C:\Windows\SysWOW64\gonukqdf\tnwgtwbn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8ee365ed1f5cae302130b5fd5b3e069f91a1d10c94d53cdf5dd6c1db266afb.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:2708

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\tnwgtwbn.exe

Filesize
14.5MB

MD5
496edfd55a8a0901016914ee8eaa3353

SHA1
b7d4782a4bd215ec15f5fa34029fce72ffdf2729

SHA256
8bf5c325b0b9f629f72a34ca0da034ee6172e7754e871bee2de6b34c41adb4bb

SHA512
1857ff7b28e68ad7801e2cd7c3c28b2cbc63f8853c9f9d7a79dc2cf174c234dc5397de019ef5fbbbeefaff770231533efaa37b7a5b5503d4f0d048fa276517f4

Download Submit
memory/2148-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2148-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2148-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2148-10-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2148-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2148-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2708-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-15-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads