tofsee | 13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 08:28

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General

Target

JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe
Size

138KB
MD5

b6486108ef7350618488a8ecee3d9782
SHA1

09a6f333cf62f3c754e1317abdfa0d1146a30652
SHA256

13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2
SHA512

949f233b393ee14886e022cc959457f64b84f0367b2a7a2263634a71c31e7cc6b2c347d2010a3d1376dd53dc17c52aa9b0a1a2706eeaebac5926d574325699ca
SSDEEP

3072:zPlxLfHhPIJbhanKUqs+r55shCxiSdzZj4:zvDBIJbh/dPM6JL

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\gwjlulwz = "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
2712	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\gwjlulwz\ImagePath = "C:\\Windows\\SysWOW64\\gwjlulwz\\hkidxeoy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
536	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	hkidxeoy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 536	2856	hkidxeoy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2248	sc.exe
2832	sc.exe
2976	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hkidxeoy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 2040	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	30
PID 644 wrote to memory of 2040	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	30
PID 644 wrote to memory of 2040	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	30
PID 644 wrote to memory of 2040	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	30
PID 644 wrote to memory of 2488	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	32
PID 644 wrote to memory of 2488	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	32
PID 644 wrote to memory of 2488	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	32
PID 644 wrote to memory of 2488	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	32
PID 644 wrote to memory of 2248	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	34
PID 644 wrote to memory of 2248	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	34
PID 644 wrote to memory of 2248	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	34
PID 644 wrote to memory of 2248	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	34
PID 644 wrote to memory of 2832	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	36
PID 644 wrote to memory of 2832	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	36
PID 644 wrote to memory of 2832	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	36
PID 644 wrote to memory of 2832	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	36
PID 644 wrote to memory of 2976	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	38
PID 644 wrote to memory of 2976	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	38
PID 644 wrote to memory of 2976	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	38
PID 644 wrote to memory of 2976	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	38
PID 644 wrote to memory of 2712	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	41
PID 644 wrote to memory of 2712	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	41
PID 644 wrote to memory of 2712	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	41
PID 644 wrote to memory of 2712	644	JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe	41
PID 2856 wrote to memory of 536	2856	hkidxeoy.exe	43
PID 2856 wrote to memory of 536	2856	hkidxeoy.exe	43
PID 2856 wrote to memory of 536	2856	hkidxeoy.exe	43
PID 2856 wrote to memory of 536	2856	hkidxeoy.exe	43
PID 2856 wrote to memory of 536	2856	hkidxeoy.exe	43
PID 2856 wrote to memory of 536	2856	hkidxeoy.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gwjlulwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hkidxeoy.exe" C:\Windows\SysWOW64\gwjlulwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gwjlulwz binPath= "C:\Windows\SysWOW64\gwjlulwz\hkidxeoy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gwjlulwz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gwjlulwz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- 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:2712

C:\Windows\SysWOW64\gwjlulwz\hkidxeoy.exe
C:\Windows\SysWOW64\gwjlulwz\hkidxeoy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13ff4676c5a7e487edda736c39cc17cef014686f02b0109a06b5471f5e46f2c2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- 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:536

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\hkidxeoy.exe

Filesize
14.6MB

MD5
ae57726efaeb7cf10815b8f85e1d7de4

SHA1
baaa48db6a270a6e58a3c39fbbda2adb6a89f2b7

SHA256
5bf0b23176e3465b61e4103a6244badca768be46eece5f9a0b7236ed77f85903

SHA512
05218bbbf71f43b6ed65b0e5882c0c42c9f60fe2e368a18395e66d4ea04277552777f5fdf8b4db29635873d7931fbffade4761613a66c8c18effd1c32404ba40

Download Submit
memory/536-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/536-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/536-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/536-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/536-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/644-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/644-3-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/644-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/644-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/644-9-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2856-17-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads