tofsee | 1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-12-2024 22:15

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General

Target

JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe
Size

305KB
MD5

338ab2e152c81451b60b32cd347cc0f3
SHA1

54667f010d3e818f5b66f391999d3c0a4b11b8ab
SHA256

1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417
SHA512

7a47e567101158af61caceba109f51db6973129c37b2311b7766990dc4061c03e8597cf3cb9342fbe86601bbef68de92a7b47dcf2876bf2edccd5110d866f9d6
SSDEEP

6144:0PgNS5Ym+loYI38ss45vSUmNe7niKz/LOvk:3NS5Ym+lu8745aUji

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\nxjgykie = "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
2664	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\nxjgykie\ImagePath = "C:\\Windows\\SysWOW64\\nxjgykie\\csnztfjb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2532	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3068	csnztfjb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2532	3068	csnztfjb.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2816	sc.exe
2660	sc.exe
2528	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csnztfjb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 2692 wrote to memory of 1936	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	28
PID 2692 wrote to memory of 1936	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	28
PID 2692 wrote to memory of 1936	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	28
PID 2692 wrote to memory of 1936	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	28
PID 2692 wrote to memory of 2656	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	30
PID 2692 wrote to memory of 2656	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	30
PID 2692 wrote to memory of 2656	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	30
PID 2692 wrote to memory of 2656	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	30
PID 2692 wrote to memory of 2816	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	32
PID 2692 wrote to memory of 2816	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	32
PID 2692 wrote to memory of 2816	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	32
PID 2692 wrote to memory of 2816	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	32
PID 2692 wrote to memory of 2660	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	34
PID 2692 wrote to memory of 2660	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	34
PID 2692 wrote to memory of 2660	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	34
PID 2692 wrote to memory of 2660	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	34
PID 2692 wrote to memory of 2528	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	36
PID 2692 wrote to memory of 2528	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	36
PID 2692 wrote to memory of 2528	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	36
PID 2692 wrote to memory of 2528	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	36
PID 2692 wrote to memory of 2664	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	39
PID 2692 wrote to memory of 2664	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	39
PID 2692 wrote to memory of 2664	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	39
PID 2692 wrote to memory of 2664	2692	JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe	39
PID 3068 wrote to memory of 2532	3068	csnztfjb.exe	41
PID 3068 wrote to memory of 2532	3068	csnztfjb.exe	41
PID 3068 wrote to memory of 2532	3068	csnztfjb.exe	41
PID 3068 wrote to memory of 2532	3068	csnztfjb.exe	41
PID 3068 wrote to memory of 2532	3068	csnztfjb.exe	41
PID 3068 wrote to memory of 2532	3068	csnztfjb.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nxjgykie\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\csnztfjb.exe" C:\Windows\SysWOW64\nxjgykie\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nxjgykie binPath= "C:\Windows\SysWOW64\nxjgykie\csnztfjb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nxjgykie "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nxjgykie
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2528
- 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:2664

C:\Windows\SysWOW64\nxjgykie\csnztfjb.exe
C:\Windows\SysWOW64\nxjgykie\csnztfjb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e142136cd633cd5b79377d1dc5954f50a873e4b621b9cb0d31056e1db4a1417.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- 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:2532

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\csnztfjb.exe

Filesize
11.4MB

MD5
6acbcecf7b83044fa0c392135fba8a5c

SHA1
ddc23ff696e0900c521513a3ef946338166a558b

SHA256
11ecc9cef75b36c00db0df8260f72d4f8be1894ddb2525101a068ddd3f79b685

SHA512
7b7ea8ea25b496ac1a0ffcb6690d394c915b018fa5aaeff8b9beba745aab27498f408c31dee12b2e9d1eaf12bcffa0374bf5c9202593f2253f47d3f75210bf85

Download Submit
memory/2532-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2532-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2532-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2532-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2692-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2692-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2692-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2692-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2692-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

Filesize
1024KB

Download
memory/3068-15-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads