tofsee | acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 20:23

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General

Target

JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe
Size

316KB
MD5

fb84a1e83259f25496b4a5eae9ffca35
SHA1

3eeb9d179e6c6a5d9c3b98a894d4afd1111a93a2
SHA256

acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507
SHA512

79af94756301cc4d0067f05cfc64dc19abe84b5f76057edcf210a85dfb4ee23533e243eb34ed9ae9c3353855c44b92a6fe2e0e53a4f149cf9b4a5adcc5b4dac3
SSDEEP

6144:rjho0K+fMn1AFSK2/7u0reiZ0cGBjDTrV+Mlyv:fhIn1AV2/7u0reiZ0cGBjZ+M

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\kprkgvkf = "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
2780	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\kprkgvkf\ImagePath = "C:\\Windows\\SysWOW64\\kprkgvkf\\wjspqvhu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	wjspqvhu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2852	2788	wjspqvhu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2496	sc.exe
2776	sc.exe
2920	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	wjspqvhu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.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 2536 wrote to memory of 1372	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	30
PID 2536 wrote to memory of 1372	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	30
PID 2536 wrote to memory of 1372	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	30
PID 2536 wrote to memory of 1372	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	30
PID 2536 wrote to memory of 2272	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	32
PID 2536 wrote to memory of 2272	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	32
PID 2536 wrote to memory of 2272	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	32
PID 2536 wrote to memory of 2272	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	32
PID 2536 wrote to memory of 2496	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	34
PID 2536 wrote to memory of 2496	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	34
PID 2536 wrote to memory of 2496	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	34
PID 2536 wrote to memory of 2496	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	34
PID 2536 wrote to memory of 2776	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	36
PID 2536 wrote to memory of 2776	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	36
PID 2536 wrote to memory of 2776	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	36
PID 2536 wrote to memory of 2776	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	36
PID 2536 wrote to memory of 2920	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	38
PID 2536 wrote to memory of 2920	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	38
PID 2536 wrote to memory of 2920	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	38
PID 2536 wrote to memory of 2920	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	38
PID 2536 wrote to memory of 2780	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	41
PID 2536 wrote to memory of 2780	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	41
PID 2536 wrote to memory of 2780	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	41
PID 2536 wrote to memory of 2780	2536	JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe	41
PID 2788 wrote to memory of 2852	2788	wjspqvhu.exe	43
PID 2788 wrote to memory of 2852	2788	wjspqvhu.exe	43
PID 2788 wrote to memory of 2852	2788	wjspqvhu.exe	43
PID 2788 wrote to memory of 2852	2788	wjspqvhu.exe	43
PID 2788 wrote to memory of 2852	2788	wjspqvhu.exe	43
PID 2788 wrote to memory of 2852	2788	wjspqvhu.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kprkgvkf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wjspqvhu.exe" C:\Windows\SysWOW64\kprkgvkf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2272
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kprkgvkf binPath= "C:\Windows\SysWOW64\kprkgvkf\wjspqvhu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kprkgvkf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kprkgvkf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- 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:2780

C:\Windows\SysWOW64\kprkgvkf\wjspqvhu.exe
C:\Windows\SysWOW64\kprkgvkf\wjspqvhu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_acc65b903f1813a624aec1b51366375e0996d32dfd200074e1f87c175f5ff507.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2852

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\wjspqvhu.exe

Filesize
10.4MB

MD5
b8d66cba460c09a0192a6018de71de79

SHA1
46e51893901a4a7a6347012bffdd8dd9e360556b

SHA256
e61f98914aa93d275ae14c5db33cb147aef45dd15820ed334cf7f326d5e9e4ee

SHA512
8a8a2c89c082733491d4820b6c76b6003fcd7674216dbf7fb69d02c829f1ccc0ff754d92c3c9aee41a332c3c3024dae6a245eadae285bb9af0f3daab36b4c15b

Download Submit
memory/2536-8-0x0000000000260000-0x0000000000273000-memory.dmp

Filesize
76KB

Download
memory/2536-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2536-2-0x0000000000260000-0x0000000000273000-memory.dmp

Filesize
76KB

Download
memory/2536-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2536-9-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2536-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2536-7-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download
memory/2788-18-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download
memory/2852-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads