tofsee | cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559

Analysis

max time kernel
148s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 02:00

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General

Target

JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe
Size

136KB
MD5

9b65a7119b0bca572ee813bf80b152ef
SHA1

34f024ed899317f7b46d61e186d9ad4be7d0e813
SHA256

cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559
SHA512

44a87588436df80884c5ddb95b762febe66ded454ce2310d1bfb249ba89d79014dd39b89ed1eb0d9d7e8be8cc1ffa655ee60eb74e7f2a3f4df9abb408bf6f3af
SSDEEP

1536:TL0xHUcaPRbcisykYAoVIdZaR7ykf0TSRpoF2I6NHujdKAJGWa0XZ6E/9nD5zB/J:naiIiJAYPf06NO/JPa0p64JD5zJoYQ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\jewfjxhi = "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
2732	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\jewfjxhi\ImagePath = "C:\\Windows\\SysWOW64\\jewfjxhi\\iugoozow.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3004	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3044	iugoozow.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 3004	3044	iugoozow.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2720	sc.exe
2660	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iugoozow.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 1568	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	30
PID 2916 wrote to memory of 1568	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	30
PID 2916 wrote to memory of 1568	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	30
PID 2916 wrote to memory of 1568	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	30
PID 2916 wrote to memory of 2760	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	32
PID 2916 wrote to memory of 2760	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	32
PID 2916 wrote to memory of 2760	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	32
PID 2916 wrote to memory of 2760	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	32
PID 2916 wrote to memory of 2712	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	34
PID 2916 wrote to memory of 2712	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	34
PID 2916 wrote to memory of 2712	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	34
PID 2916 wrote to memory of 2712	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	34
PID 2916 wrote to memory of 2720	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	36
PID 2916 wrote to memory of 2720	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	36
PID 2916 wrote to memory of 2720	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	36
PID 2916 wrote to memory of 2720	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	36
PID 2916 wrote to memory of 2660	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	38
PID 2916 wrote to memory of 2660	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	38
PID 2916 wrote to memory of 2660	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	38
PID 2916 wrote to memory of 2660	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	38
PID 2916 wrote to memory of 2732	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	41
PID 2916 wrote to memory of 2732	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	41
PID 2916 wrote to memory of 2732	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	41
PID 2916 wrote to memory of 2732	2916	JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe	41
PID 3044 wrote to memory of 3004	3044	iugoozow.exe	43
PID 3044 wrote to memory of 3004	3044	iugoozow.exe	43
PID 3044 wrote to memory of 3004	3044	iugoozow.exe	43
PID 3044 wrote to memory of 3004	3044	iugoozow.exe	43
PID 3044 wrote to memory of 3004	3044	iugoozow.exe	43
PID 3044 wrote to memory of 3004	3044	iugoozow.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jewfjxhi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iugoozow.exe" C:\Windows\SysWOW64\jewfjxhi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jewfjxhi binPath= "C:\Windows\SysWOW64\jewfjxhi\iugoozow.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jewfjxhi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jewfjxhi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2732

C:\Windows\SysWOW64\jewfjxhi\iugoozow.exe
C:\Windows\SysWOW64\jewfjxhi\iugoozow.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd23cbd1e13b53d1932af8dbd1a93718edb9efaf6fde950c1fe380764f464559.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- 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:3004

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\iugoozow.exe

Filesize
14.4MB

MD5
15f8f07fdf1134013196a57ad229a41e

SHA1
bb0a350a84ebce3556ba151b531af1e566c8bf51

SHA256
42783f49008040caf4aa60bf961f08ee659bffc801781e82080028bcf11a395e

SHA512
31135f257724cd231aa67bf728a6e794dc3387edd05f5be67a8953fc19c9777586ad45b4c34ff569f8632afc7f4825289fdfce840a0ad7baea25a638531519da

Download Submit
memory/2916-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/2916-3-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2916-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-9-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/3004-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3004-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-15-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads