tofsee | 59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 19:06

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General

Target

JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe
Size

327KB
MD5

6f1d253c3614753b87aab018fa163871
SHA1

903ffbf67398e8ded5dae30767f65bf6958126de
SHA256

59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d
SHA512

a46e9e740799991c44d7d707c2770b4b7df756d8833a8a37fc83d6855383cec3e337cd485eee147f7c70ca88f0667f0f81a20cccb593f3e237d7805d2c682188
SSDEEP

6144:taBO3imrOouSABnevchIagXe6l2uAzBlHMSWZFq:YG1OouSQqcqaoe6l+BtlW

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\paibizjf = "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
2880	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\paibizjf\ImagePath = "C:\\Windows\\SysWOW64\\paibizjf\\slwmxung.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2764	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2824	slwmxung.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 2764	2824	slwmxung.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2740	sc.exe
2812	sc.exe
2704	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	svchost.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	slwmxung.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.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 2684 wrote to memory of 2440	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	30
PID 2684 wrote to memory of 2440	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	30
PID 2684 wrote to memory of 2440	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	30
PID 2684 wrote to memory of 2440	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	30
PID 2684 wrote to memory of 2904	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	32
PID 2684 wrote to memory of 2904	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	32
PID 2684 wrote to memory of 2904	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	32
PID 2684 wrote to memory of 2904	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	32
PID 2684 wrote to memory of 2740	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	34
PID 2684 wrote to memory of 2740	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	34
PID 2684 wrote to memory of 2740	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	34
PID 2684 wrote to memory of 2740	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	34
PID 2684 wrote to memory of 2812	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	36
PID 2684 wrote to memory of 2812	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	36
PID 2684 wrote to memory of 2812	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	36
PID 2684 wrote to memory of 2812	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	36
PID 2684 wrote to memory of 2704	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	38
PID 2684 wrote to memory of 2704	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	38
PID 2684 wrote to memory of 2704	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	38
PID 2684 wrote to memory of 2704	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	38
PID 2684 wrote to memory of 2880	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	41
PID 2684 wrote to memory of 2880	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	41
PID 2684 wrote to memory of 2880	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	41
PID 2684 wrote to memory of 2880	2684	JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe	41
PID 2824 wrote to memory of 2764	2824	slwmxung.exe	43
PID 2824 wrote to memory of 2764	2824	slwmxung.exe	43
PID 2824 wrote to memory of 2764	2824	slwmxung.exe	43
PID 2824 wrote to memory of 2764	2824	slwmxung.exe	43
PID 2824 wrote to memory of 2764	2824	slwmxung.exe	43
PID 2824 wrote to memory of 2764	2824	slwmxung.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\paibizjf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\slwmxung.exe" C:\Windows\SysWOW64\paibizjf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create paibizjf binPath= "C:\Windows\SysWOW64\paibizjf\slwmxung.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description paibizjf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start paibizjf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- 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:2880

C:\Windows\SysWOW64\paibizjf\slwmxung.exe
C:\Windows\SysWOW64\paibizjf\slwmxung.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59824f33b2473ed4cbd2f876dd08298598a2ae682ce600a524212b2a9397e52d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- 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:2764

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\slwmxung.exe

Filesize
11.3MB

MD5
11257ec5b8d62762b04e159ee6ad62cd

SHA1
2f9855caf2c53dd344517ffae6c18f1dd5601b4e

SHA256
a9cac6deca7f0a0358989a948e3a648072f81c3a804053e003bb72735fdec03c

SHA512
ce5d270ee30d428774945313cd7ae5bc4832166f1cb9115ac325ff3a65b73f05e5d70baa3081d17e95c896190b45ba8557275da47d3583e79ab1e3cadd3731df

Download Submit
memory/2684-7-0x0000000000400000-0x00000000023A9000-memory.dmp

Filesize
31.7MB

Download
memory/2684-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2684-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2684-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2764-14-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2764-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2764-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2764-18-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2824-17-0x0000000000400000-0x00000000023A9000-memory.dmp

Filesize
31.7MB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads