tofsee | 0548cb99d5e3f66650abba816c4a0f2e175eec00a79dbf0d72ad4732f84423cb

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 23:44

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General

Target

JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe
Size

11.9MB
MD5

3f292c43499ee4ba98361c0f1b365a33
SHA1

0d835ff79890f1269674a1c6e25ca3b926bfe726
SHA256

0548cb99d5e3f66650abba816c4a0f2e175eec00a79dbf0d72ad4732f84423cb
SHA512

40f35639e5fd4a398ae5a722e5731747c65293c18e103a0987af86b1bc67bdb0f7f0cba87753a490ea50cfb512afb2c89e32eeb42ab7db97e51f5e753224c2ec
SSDEEP

6144:kU7GjEC3ezR7ba5Kr6zFIKBQG18IAHORqctttttttttttttttttttttttttttttH:kU7nZzRva51z2G18IAHeq

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\lkelvyaj = "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
2752	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\lkelvyaj\ImagePath = "C:\\Windows\\SysWOW64\\lkelvyaj\\odekxicb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3068	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
964	odekxicb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 964 set thread context of 3068	964	odekxicb.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1548	sc.exe
1636	sc.exe
1800	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	odekxicb.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	30
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	30
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	30
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	30
PID 2036 wrote to memory of 1520	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	32
PID 2036 wrote to memory of 1520	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	32
PID 2036 wrote to memory of 1520	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	32
PID 2036 wrote to memory of 1520	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	32
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	35
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	35
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	35
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	35
PID 2036 wrote to memory of 1636	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	37
PID 2036 wrote to memory of 1636	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	37
PID 2036 wrote to memory of 1636	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	37
PID 2036 wrote to memory of 1636	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	37
PID 2036 wrote to memory of 1800	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	39
PID 2036 wrote to memory of 1800	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	39
PID 2036 wrote to memory of 1800	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	39
PID 2036 wrote to memory of 1800	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	39
PID 2036 wrote to memory of 2752	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	42
PID 2036 wrote to memory of 2752	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	42
PID 2036 wrote to memory of 2752	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	42
PID 2036 wrote to memory of 2752	2036	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	42
PID 964 wrote to memory of 3068	964	odekxicb.exe	44
PID 964 wrote to memory of 3068	964	odekxicb.exe	44
PID 964 wrote to memory of 3068	964	odekxicb.exe	44
PID 964 wrote to memory of 3068	964	odekxicb.exe	44
PID 964 wrote to memory of 3068	964	odekxicb.exe	44
PID 964 wrote to memory of 3068	964	odekxicb.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lkelvyaj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\odekxicb.exe" C:\Windows\SysWOW64\lkelvyaj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lkelvyaj binPath= "C:\Windows\SysWOW64\lkelvyaj\odekxicb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lkelvyaj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lkelvyaj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1800
- 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:2752

C:\Windows\SysWOW64\lkelvyaj\odekxicb.exe
C:\Windows\SysWOW64\lkelvyaj\odekxicb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:964
- 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:3068

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\odekxicb.exe

Filesize
11.3MB

MD5
cc8f3ab79e5e4ec9095962d660fc6005

SHA1
6ea3f1401b1402a27ba6218f2093e9a721be3cda

SHA256
571aa6c5817302c0b72ebd05483bcf809fb0f104a05b37852d73a2b2bb7bc7fe

SHA512
9b2ae1b2ae72f821204785bd8d012bcfb99652a157c7c91062debcdba8fb63e004fcb2a2622af935703a0e5283b3f927883a1b2347cecb85f6290df87b0d4b57

Download Submit
memory/964-17-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2036-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2036-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2036-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-1-0x0000000001810000-0x0000000001910000-memory.dmp

Filesize
1024KB

Download
memory/2036-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3068-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3068-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3068-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3068-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3068-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads