tofsee | c9ce74a6fde17c62cff139a74cb86d26c53196d0712a3ae677fa74910b34047b

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 12:24

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General

Target

8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe
Size

287KB
MD5

8b781b88987500ec50c623ccf8aa6a8a
SHA1

857882d0763580b23e64e1f3e4f7eb7bd9173b5b
SHA256

c9ce74a6fde17c62cff139a74cb86d26c53196d0712a3ae677fa74910b34047b
SHA512

d5f730c21bb733beb4230d006b2cb39a2a560598c08832ab6510a600eb80371cc72d05a3f45f5131a54faa8346916ac49c4f1963c17dc4eecf2de786308ac2cb
SSDEEP

6144:8wkmQ1kUgOdYL9yOPoeA8rFXj77QWldyQG1/e:PrXyYL9yOPk8rFT70WY

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\wpmxrgor = "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
2684	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\wpmxrgor\ImagePath = "C:\\Windows\\SysWOW64\\wpmxrgor\\ahkijjzn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2864	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2624	ahkijjzn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2624 set thread context of 2864	2624	ahkijjzn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2080	sc.exe
2900	sc.exe
2636	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ahkijjzn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2764	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2764	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2764	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2764	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	30
PID 2716 wrote to memory of 3012	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	32
PID 2716 wrote to memory of 3012	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	32
PID 2716 wrote to memory of 3012	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	32
PID 2716 wrote to memory of 3012	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	32
PID 2716 wrote to memory of 2900	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	34
PID 2716 wrote to memory of 2900	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	34
PID 2716 wrote to memory of 2900	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	34
PID 2716 wrote to memory of 2900	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	34
PID 2716 wrote to memory of 2636	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	36
PID 2716 wrote to memory of 2636	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	36
PID 2716 wrote to memory of 2636	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	36
PID 2716 wrote to memory of 2636	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	36
PID 2716 wrote to memory of 2080	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	38
PID 2716 wrote to memory of 2080	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	38
PID 2716 wrote to memory of 2080	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	38
PID 2716 wrote to memory of 2080	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	38
PID 2716 wrote to memory of 2684	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	41
PID 2716 wrote to memory of 2684	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	41
PID 2716 wrote to memory of 2684	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	41
PID 2716 wrote to memory of 2684	2716	8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe	41
PID 2624 wrote to memory of 2864	2624	ahkijjzn.exe	43
PID 2624 wrote to memory of 2864	2624	ahkijjzn.exe	43
PID 2624 wrote to memory of 2864	2624	ahkijjzn.exe	43
PID 2624 wrote to memory of 2864	2624	ahkijjzn.exe	43
PID 2624 wrote to memory of 2864	2624	ahkijjzn.exe	43
PID 2624 wrote to memory of 2864	2624	ahkijjzn.exe	43

C:\Users\Admin\AppData\Local\Temp\8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wpmxrgor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ahkijjzn.exe" C:\Windows\SysWOW64\wpmxrgor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wpmxrgor binPath= "C:\Windows\SysWOW64\wpmxrgor\ahkijjzn.exe /d\"C:\Users\Admin\AppData\Local\Temp\8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wpmxrgor "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wpmxrgor
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2080
- 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:2684

C:\Windows\SysWOW64\wpmxrgor\ahkijjzn.exe
C:\Windows\SysWOW64\wpmxrgor\ahkijjzn.exe /d"C:\Users\Admin\AppData\Local\Temp\8b781b88987500ec50c623ccf8aa6a8a_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624
- 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:2864

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\ahkijjzn.exe

Filesize
10.3MB

MD5
bd4489095370c105bff1649bec96fc0b

SHA1
c63c046936151d67ca245182496ccfff76953382

SHA256
a058340ce7190bbdc52e8ee648284714b9cabadd6e2dac5201e3f41080b6f27c

SHA512
1f5f70fe2b36ddadd0842562792b826462c18dd124c689840cc6a99875cf043776385dcbc07d3d08cb23cea18eda902fcf77a64ba576838a7fff67cea6b52017

Download Submit
memory/2624-15-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2716-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2716-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2716-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2716-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2716-1-0x0000000002CD0000-0x0000000002DD0000-memory.dmp

Filesize
1024KB

Download
memory/2716-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2864-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2864-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2864-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2864-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2864-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads