tofsee | fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef

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
24-12-2024 10:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe
Size

285KB
MD5

9ae18937bee35e429d3cf973cc2c66bc
SHA1

a2c8feadc6ef096d7de3d3ba138409e8cd4631eb
SHA256

fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef
SHA512

e34fd5eafa5c742729dffdbe401d5d10b5231fb90a2038c7a7f856e87a82f832e4c1bf67be2ae7af86d679c2fce6b786622b8ec088f990b759e6b16b6194fbd1
SSDEEP

6144:yKFbjOROKji302CSXuzbgwu6L7ITsqSigaTwVf:FbjOROMYRxXunnn7s

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\vbnbtrcm = "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
2832	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\vbnbtrcm\ImagePath = "C:\\Windows\\SysWOW64\\vbnbtrcm\\lesewqsf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2680	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2252	lesewqsf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 2680	2252	lesewqsf.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2692	sc.exe
2808	sc.exe
2668	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	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	lesewqsf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2452	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	31
PID 2328 wrote to memory of 2452	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	31
PID 2328 wrote to memory of 2452	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	31
PID 2328 wrote to memory of 2452	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	31
PID 2328 wrote to memory of 2132	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	33
PID 2328 wrote to memory of 2132	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	33
PID 2328 wrote to memory of 2132	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	33
PID 2328 wrote to memory of 2132	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	33
PID 2328 wrote to memory of 2692	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	35
PID 2328 wrote to memory of 2692	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	35
PID 2328 wrote to memory of 2692	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	35
PID 2328 wrote to memory of 2692	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	35
PID 2328 wrote to memory of 2808	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	37
PID 2328 wrote to memory of 2808	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	37
PID 2328 wrote to memory of 2808	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	37
PID 2328 wrote to memory of 2808	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	37
PID 2328 wrote to memory of 2668	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	39
PID 2328 wrote to memory of 2668	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	39
PID 2328 wrote to memory of 2668	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	39
PID 2328 wrote to memory of 2668	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	39
PID 2328 wrote to memory of 2832	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	42
PID 2328 wrote to memory of 2832	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	42
PID 2328 wrote to memory of 2832	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	42
PID 2328 wrote to memory of 2832	2328	JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe	42
PID 2252 wrote to memory of 2680	2252	lesewqsf.exe	44
PID 2252 wrote to memory of 2680	2252	lesewqsf.exe	44
PID 2252 wrote to memory of 2680	2252	lesewqsf.exe	44
PID 2252 wrote to memory of 2680	2252	lesewqsf.exe	44
PID 2252 wrote to memory of 2680	2252	lesewqsf.exe	44
PID 2252 wrote to memory of 2680	2252	lesewqsf.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vbnbtrcm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lesewqsf.exe" C:\Windows\SysWOW64\vbnbtrcm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vbnbtrcm binPath= "C:\Windows\SysWOW64\vbnbtrcm\lesewqsf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vbnbtrcm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vbnbtrcm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- 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:2832

C:\Windows\SysWOW64\vbnbtrcm\lesewqsf.exe
C:\Windows\SysWOW64\vbnbtrcm\lesewqsf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe8eab1915f8ab5c7b8de91e09fae88b4c98626c317e7d61d6acb116fe29efef.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- 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:2680

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\lesewqsf.exe

Filesize
10.1MB

MD5
f0998350dc794bf49d943cb94ba37489

SHA1
524e67ab62b405ef7fc1cf3db328a61f3cf2de6a

SHA256
85b281c6b73effe0c34aa512498fd64f12e8945bcc93e60d8bf34cafcec8c772

SHA512
ea74166d932f6b2a76d8cfeb10300964c42d3abcade1e3ad8cd99ee38c7e9921053611451273ba7c32dc5475fb8f4b42bab318ca14007030c787d7d8c8bac2e1

Download Submit
memory/2252-16-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2328-7-0x00000000003C0000-0x00000000003CD000-memory.dmp

Filesize
52KB

Download
memory/2328-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2328-8-0x00000000003D0000-0x00000000003E3000-memory.dmp

Filesize
76KB

Download
memory/2328-0-0x00000000003C0000-0x00000000003CD000-memory.dmp

Filesize
52KB

Download
memory/2328-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2328-1-0x00000000003D0000-0x00000000003E3000-memory.dmp

Filesize
76KB

Download
memory/2680-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2680-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads