tofsee | 17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23/12/2024, 14:32

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General

Target

JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe
Size

159KB
MD5

7272673adb381a42bf168133972442a5
SHA1

d6eaf59359ea2d1bb61877d077c9f9c97422759c
SHA256

17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899
SHA512

72eee2da5918a2fe52dc72f9a76730379c2fc85d0694ad25efadc588dd7b64f3e7ba8229cd9e78ecfadf5d331a274409b370399afe135aa2d3bf469faf40d6d5
SSDEEP

3072:IK7tyStkBJQXJAkcFjwNMhKNa7hHXSdmrFgotXEwKHbKOOlLlm:IWtkBJQXBco7+INaUHb8l

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\obmkxund = "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
2568	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\obmkxund\ImagePath = "C:\\Windows\\SysWOW64\\obmkxund\\jsbjxpxg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2612	jsbjxpxg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2612 set thread context of 2816	2612	jsbjxpxg.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2696	sc.exe
2676	sc.exe
2584	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_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.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	jsbjxpxg.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 2688 wrote to memory of 2804	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	30
PID 2688 wrote to memory of 2804	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	30
PID 2688 wrote to memory of 2804	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	30
PID 2688 wrote to memory of 2804	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	30
PID 2688 wrote to memory of 2820	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	32
PID 2688 wrote to memory of 2820	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	32
PID 2688 wrote to memory of 2820	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	32
PID 2688 wrote to memory of 2820	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	32
PID 2688 wrote to memory of 2676	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	34
PID 2688 wrote to memory of 2676	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	34
PID 2688 wrote to memory of 2676	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	34
PID 2688 wrote to memory of 2676	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	34
PID 2688 wrote to memory of 2584	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	36
PID 2688 wrote to memory of 2584	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	36
PID 2688 wrote to memory of 2584	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	36
PID 2688 wrote to memory of 2584	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	36
PID 2688 wrote to memory of 2696	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	38
PID 2688 wrote to memory of 2696	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	38
PID 2688 wrote to memory of 2696	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	38
PID 2688 wrote to memory of 2696	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	38
PID 2688 wrote to memory of 2568	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	41
PID 2688 wrote to memory of 2568	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	41
PID 2688 wrote to memory of 2568	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	41
PID 2688 wrote to memory of 2568	2688	JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe	41
PID 2612 wrote to memory of 2816	2612	jsbjxpxg.exe	43
PID 2612 wrote to memory of 2816	2612	jsbjxpxg.exe	43
PID 2612 wrote to memory of 2816	2612	jsbjxpxg.exe	43
PID 2612 wrote to memory of 2816	2612	jsbjxpxg.exe	43
PID 2612 wrote to memory of 2816	2612	jsbjxpxg.exe	43
PID 2612 wrote to memory of 2816	2612	jsbjxpxg.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\obmkxund\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jsbjxpxg.exe" C:\Windows\SysWOW64\obmkxund\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create obmkxund binPath= "C:\Windows\SysWOW64\obmkxund\jsbjxpxg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description obmkxund "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start obmkxund
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- 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:2568

C:\Windows\SysWOW64\obmkxund\jsbjxpxg.exe
C:\Windows\SysWOW64\obmkxund\jsbjxpxg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_17687f6b5a69cbaa84309f9ced25b3731c9fd6f4704abf9291877e6c5e57e899.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612
- 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:2816

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\jsbjxpxg.exe

Filesize
13.7MB

MD5
d2c945137c54b59b93d27fd7d629702e

SHA1
a5a40055a5566b188d129b5a094348fcf7e42ec1

SHA256
b80a797233b77c10331ba8fa26d29190e030c3be202e6870ecf0ed5a9d8a7f34

SHA512
4ac5feff2be33c8c3223198bcc36cbaef4add360429b9e17f2784f618435a438e223b6dfd562f03f7a803abfefb18f024a78b0fb707720f4cba787f411b63962

Download Submit
memory/2612-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2688-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2688-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-8-0x0000000000260000-0x0000000000273000-memory.dmp

Filesize
76KB

Download
memory/2688-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2688-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2688-1-0x0000000000260000-0x0000000000273000-memory.dmp

Filesize
76KB

Download
memory/2816-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads