tofsee | a492284b3b05e75509bd1b8b6e7f73b5bf7f78263d5725082a8c76bb782b3c63

Analysis

max time kernel
147s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 12:02

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General

Target

a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe
Size

14.8MB
MD5

a1cdfab5a4af43636fe8141ba9bb2215
SHA1

fe8e0d854dee3d741167f4c302b5f05c71e23189
SHA256

a492284b3b05e75509bd1b8b6e7f73b5bf7f78263d5725082a8c76bb782b3c63
SHA512

9dca7bbfbcc6178eecc0221afae418b5012d27b4023e754d0db54811d57074b21583f400408fe06790869585eee163ece122dfd064050287ce7d3561c151e37f
SSDEEP

12288:F1vfanyphPu2xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFz:zvfEyph

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.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\smwuzcik = "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
2824	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\smwuzcik\ImagePath = "C:\\Windows\\SysWOW64\\smwuzcik\\qkkbmvmo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2644	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	qkkbmvmo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2644	2748	qkkbmvmo.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2344	sc.exe
2148	sc.exe
580	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	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.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	sc.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	qkkbmvmo.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2156	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	30
PID 2368 wrote to memory of 2156	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	30
PID 2368 wrote to memory of 2156	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	30
PID 2368 wrote to memory of 2156	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	30
PID 2368 wrote to memory of 2416	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	32
PID 2368 wrote to memory of 2416	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	32
PID 2368 wrote to memory of 2416	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	32
PID 2368 wrote to memory of 2416	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	32
PID 2368 wrote to memory of 2344	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	34
PID 2368 wrote to memory of 2344	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	34
PID 2368 wrote to memory of 2344	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	34
PID 2368 wrote to memory of 2344	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	34
PID 2368 wrote to memory of 2148	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	36
PID 2368 wrote to memory of 2148	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	36
PID 2368 wrote to memory of 2148	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	36
PID 2368 wrote to memory of 2148	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	36
PID 2368 wrote to memory of 580	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	38
PID 2368 wrote to memory of 580	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	38
PID 2368 wrote to memory of 580	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	38
PID 2368 wrote to memory of 580	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	38
PID 2368 wrote to memory of 2824	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	41
PID 2368 wrote to memory of 2824	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	41
PID 2368 wrote to memory of 2824	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	41
PID 2368 wrote to memory of 2824	2368	a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe	41
PID 2748 wrote to memory of 2644	2748	qkkbmvmo.exe	44
PID 2748 wrote to memory of 2644	2748	qkkbmvmo.exe	44
PID 2748 wrote to memory of 2644	2748	qkkbmvmo.exe	44
PID 2748 wrote to memory of 2644	2748	qkkbmvmo.exe	44
PID 2748 wrote to memory of 2644	2748	qkkbmvmo.exe	44
PID 2748 wrote to memory of 2644	2748	qkkbmvmo.exe	44

C:\Users\Admin\AppData\Local\Temp\a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\smwuzcik\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qkkbmvmo.exe" C:\Windows\SysWOW64\smwuzcik\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create smwuzcik binPath= "C:\Windows\SysWOW64\smwuzcik\qkkbmvmo.exe /d\"C:\Users\Admin\AppData\Local\Temp\a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description smwuzcik "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start smwuzcik
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:580
- 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:2824

C:\Windows\SysWOW64\smwuzcik\qkkbmvmo.exe
C:\Windows\SysWOW64\smwuzcik\qkkbmvmo.exe /d"C:\Users\Admin\AppData\Local\Temp\a1cdfab5a4af43636fe8141ba9bb2215_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- 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:2644

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\qkkbmvmo.exe

Filesize
12.6MB

MD5
c5d9e02489cb19a5b5b730f20763ac1b

SHA1
6fa3f610228b319b52c42533757ab609ae2e386d

SHA256
d9dc5276820470d1b9643f5632630d8ba21ad9e12c6927c4ad8683d30ec8866e

SHA512
1fe79486de2be1bf84b37652c0a78da9e51a1f04b4aba58ee8df56baf100591f1340e2094b2d1d67c5cd96b5774e53218dc10544b3de370954021c29e515bc34

Download Submit
memory/2368-7-0x0000000000400000-0x0000000003379000-memory.dmp

Filesize
47.5MB

Download
memory/2368-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2368-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2368-1-0x0000000003520000-0x0000000003620000-memory.dmp

Filesize
1024KB

Download
memory/2644-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2748-15-0x0000000000400000-0x0000000003379000-memory.dmp

Filesize
47.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads