tofsee | 9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 08:53

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General

Target

JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe
Size

291KB
MD5

d19143b5b307f466773d78beaffdfddd
SHA1

3a0c0f85cac9a9c190d1b634e4a8d1b9ce139c62
SHA256

9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942
SHA512

1767680e382d3879beda7361f844e75401714f33ede60c40a23715b53174f325307b0d7ed6228af25c4fa7ee15080f2e75cac40d08bb9bc17a05ad5ab1ab9f41
SSDEEP

6144:bLAYn+dp6In11uvJXgWxvRma9zxWQYeTGDMwfzh:bMWRI10vJQ+vRma9zxWQEdfzh

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\kzzhxbn = "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
2948	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\kzzhxbn\ImagePath = "C:\\Windows\\SysWOW64\\kzzhxbn\\hepusczw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2592	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2428	hepusczw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2428 set thread context of 2592	2428	hepusczw.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
2244	sc.exe
2780	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_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hepusczw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 876 wrote to memory of 1988	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	31
PID 876 wrote to memory of 1988	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	31
PID 876 wrote to memory of 1988	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	31
PID 876 wrote to memory of 1988	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	31
PID 876 wrote to memory of 2920	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	33
PID 876 wrote to memory of 2920	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	33
PID 876 wrote to memory of 2920	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	33
PID 876 wrote to memory of 2920	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	33
PID 876 wrote to memory of 2864	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	35
PID 876 wrote to memory of 2864	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	35
PID 876 wrote to memory of 2864	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	35
PID 876 wrote to memory of 2864	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	35
PID 876 wrote to memory of 2244	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	37
PID 876 wrote to memory of 2244	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	37
PID 876 wrote to memory of 2244	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	37
PID 876 wrote to memory of 2244	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	37
PID 876 wrote to memory of 2780	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	39
PID 876 wrote to memory of 2780	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	39
PID 876 wrote to memory of 2780	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	39
PID 876 wrote to memory of 2780	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	39
PID 876 wrote to memory of 2948	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	42
PID 876 wrote to memory of 2948	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	42
PID 876 wrote to memory of 2948	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	42
PID 876 wrote to memory of 2948	876	JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe	42
PID 2428 wrote to memory of 2592	2428	hepusczw.exe	44
PID 2428 wrote to memory of 2592	2428	hepusczw.exe	44
PID 2428 wrote to memory of 2592	2428	hepusczw.exe	44
PID 2428 wrote to memory of 2592	2428	hepusczw.exe	44
PID 2428 wrote to memory of 2592	2428	hepusczw.exe	44
PID 2428 wrote to memory of 2592	2428	hepusczw.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kzzhxbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hepusczw.exe" C:\Windows\SysWOW64\kzzhxbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kzzhxbn binPath= "C:\Windows\SysWOW64\kzzhxbn\hepusczw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kzzhxbn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kzzhxbn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- 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:2948

C:\Windows\SysWOW64\kzzhxbn\hepusczw.exe
C:\Windows\SysWOW64\kzzhxbn\hepusczw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9b847b83bb51c8cf825e4b2fc385dab4e0e2c518029a1cedd8575f5f581bc942.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2428
- 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:2592

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\hepusczw.exe

Filesize
14.5MB

MD5
f0ca1d4b65dd3a4e36ef4eeedf79c5a2

SHA1
6ac51c53bff99336ef84ef3642963ade9746f49b

SHA256
805048cd84e179a0ecb53c40c91df34a43212e717c11bb061270d888364c9e31

SHA512
d6ac08e931483a46ea06879f189a66e461d02befc369703db3451c7b8188f1d2358c42d9ed3c2a8d857dfedb8ea5bf1961f36b1352b7736146de3b307b844e7b

Download Submit
memory/876-1-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/876-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/876-4-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/876-8-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/876-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2428-15-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/2592-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2592-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2592-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2592-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2592-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads