tofsee | 8876921b3b4465d0430de048d2334f8822d8f82044b45ed9f6098654176e2f8b

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
31-12-2024 08:39

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General

Target

JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe
Size

11.7MB
MD5

0eb6b0fc3422af428901ae2040613dd2
SHA1

fcef32de3aba48092800cd8c555e7be0582b8576
SHA256

8876921b3b4465d0430de048d2334f8822d8f82044b45ed9f6098654176e2f8b
SHA512

5dc480eb4a8e3f594a40d74154124e9cc78b8abe475b3f476726428cfa8ad6ebcad6164b71c72c536cd7629c987151a3b9616d6395f69bce9075025aaa13f8b7
SSDEEP

6144:8gZQZcij488Ua7qY57rMzCo8AqtSRV+a1Q:bZij488UaWYMzB5HRV+g

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\nglcenwd = "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
2728	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\nglcenwd\ImagePath = "C:\\Windows\\SysWOW64\\nglcenwd\\pwzxyyoc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2776	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	pwzxyyoc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2776	2736	pwzxyyoc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1540	sc.exe
2808	sc.exe
2964	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pwzxyyoc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1240	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	30
PID 2272 wrote to memory of 1240	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	30
PID 2272 wrote to memory of 1240	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	30
PID 2272 wrote to memory of 1240	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	30
PID 2272 wrote to memory of 2100	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	32
PID 2272 wrote to memory of 2100	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	32
PID 2272 wrote to memory of 2100	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	32
PID 2272 wrote to memory of 2100	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	32
PID 2272 wrote to memory of 1540	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	34
PID 2272 wrote to memory of 1540	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	34
PID 2272 wrote to memory of 1540	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	34
PID 2272 wrote to memory of 1540	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	34
PID 2272 wrote to memory of 2808	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	36
PID 2272 wrote to memory of 2808	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	36
PID 2272 wrote to memory of 2808	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	36
PID 2272 wrote to memory of 2808	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	36
PID 2272 wrote to memory of 2964	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	38
PID 2272 wrote to memory of 2964	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	38
PID 2272 wrote to memory of 2964	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	38
PID 2272 wrote to memory of 2964	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	38
PID 2272 wrote to memory of 2728	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	41
PID 2272 wrote to memory of 2728	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	41
PID 2272 wrote to memory of 2728	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	41
PID 2272 wrote to memory of 2728	2272	JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe	41
PID 2736 wrote to memory of 2776	2736	pwzxyyoc.exe	43
PID 2736 wrote to memory of 2776	2736	pwzxyyoc.exe	43
PID 2736 wrote to memory of 2776	2736	pwzxyyoc.exe	43
PID 2736 wrote to memory of 2776	2736	pwzxyyoc.exe	43
PID 2736 wrote to memory of 2776	2736	pwzxyyoc.exe	43
PID 2736 wrote to memory of 2776	2736	pwzxyyoc.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nglcenwd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1240
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwzxyyoc.exe" C:\Windows\SysWOW64\nglcenwd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nglcenwd binPath= "C:\Windows\SysWOW64\nglcenwd\pwzxyyoc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nglcenwd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nglcenwd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- 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:2728

C:\Windows\SysWOW64\nglcenwd\pwzxyyoc.exe
C:\Windows\SysWOW64\nglcenwd\pwzxyyoc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0eb6b0fc3422af428901ae2040613dd2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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:2776

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\pwzxyyoc.exe

Filesize
13.7MB

MD5
2003f5d76944a3507257b7dcd8023679

SHA1
bf6141fdb55db70c6399bde2eedd89c889073392

SHA256
0b0396f1bb0e7eac2af54c31d6455b90df25cf91599da3484d0ea5a8d4147c4e

SHA512
5b018d60b18e84d170e759809a6dbb07f1fa94e5f851cdb1beb7a148fd1cd33d47431362230bce9f0ee44f357e78b50364e7e8e9ee68e609fd5d4ca4eca04abf

Download Submit
memory/2272-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2272-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2272-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2272-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2736-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2776-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads