tofsee | 27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 00:54

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General

Target

JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe
Size

331KB
MD5

02048a10ea697604d4afca796a0ab93b
SHA1

fe06af1d3e80afcdce458a0d7bb2ee62b1533141
SHA256

27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0
SHA512

e25d88f3a9837eaa5d7732950db48b2cf9ccacb4c72fc35165daf31a74dad799c09a29adb281ca1c995ba4a43e844275a2c6fe9fcf1f6a1d062fe9b2127f36fb
SSDEEP

6144:F7+WqgwH1pbCLYCdNyZMQsyOlimfkkJaw:F6uu1pbCL90ZMQfrUjaw

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

ovicrush.cn

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\kqlxrxpb = "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
2648	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\kqlxrxpb\ImagePath = "C:\\Windows\\SysWOW64\\kqlxrxpb\\jssqukrc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2824	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2940	jssqukrc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2940 set thread context of 2824	2940	jssqukrc.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2672	sc.exe
2816	sc.exe
2864	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	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_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.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	jssqukrc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2056	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	31
PID 2100 wrote to memory of 2056	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	31
PID 2100 wrote to memory of 2056	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	31
PID 2100 wrote to memory of 2056	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	31
PID 2100 wrote to memory of 2920	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	33
PID 2100 wrote to memory of 2920	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	33
PID 2100 wrote to memory of 2920	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	33
PID 2100 wrote to memory of 2920	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	33
PID 2100 wrote to memory of 2864	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	35
PID 2100 wrote to memory of 2864	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	35
PID 2100 wrote to memory of 2864	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	35
PID 2100 wrote to memory of 2864	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	35
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	37
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	37
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	37
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	37
PID 2100 wrote to memory of 2816	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	39
PID 2100 wrote to memory of 2816	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	39
PID 2100 wrote to memory of 2816	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	39
PID 2100 wrote to memory of 2816	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	39
PID 2940 wrote to memory of 2824	2940	jssqukrc.exe	42
PID 2940 wrote to memory of 2824	2940	jssqukrc.exe	42
PID 2940 wrote to memory of 2824	2940	jssqukrc.exe	42
PID 2940 wrote to memory of 2824	2940	jssqukrc.exe	42
PID 2940 wrote to memory of 2824	2940	jssqukrc.exe	42
PID 2940 wrote to memory of 2824	2940	jssqukrc.exe	42
PID 2100 wrote to memory of 2648	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	43
PID 2100 wrote to memory of 2648	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	43
PID 2100 wrote to memory of 2648	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	43
PID 2100 wrote to memory of 2648	2100	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kqlxrxpb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jssqukrc.exe" C:\Windows\SysWOW64\kqlxrxpb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kqlxrxpb binPath= "C:\Windows\SysWOW64\kqlxrxpb\jssqukrc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kqlxrxpb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kqlxrxpb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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:2648

C:\Windows\SysWOW64\kqlxrxpb\jssqukrc.exe
C:\Windows\SysWOW64\kqlxrxpb\jssqukrc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2940
- 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:2824

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\jssqukrc.exe

Filesize
12.7MB

MD5
5b2c2226ff17d6fcce5087dc8f180ff9

SHA1
85c6e64a232f2a9c661ae9bedaaee2a1dc47d3d9

SHA256
502b0ca1a7f55e3f236de97e2579270a71525558828354bf6838d61b03f0255b

SHA512
1f6dccf8430a5f2e640daeb90d7cf53bfa2798c45686fd6b7552a037e14c57149a652c26551c2ed7c9a168c94b3bb4f28e9ff97cfd4612e8a8f8600ffd01e760

Download Submit
memory/2100-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2100-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-14-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download
memory/2100-15-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2100-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2824-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-13-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads