tofsee | 74868d600acb1c900eb7643f849d64b4e029a0417d091b1833672bbc0eaf49a1

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21-10-2024 20:29

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General

Target

6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe
Size

13.2MB
MD5

6744b518ec9ccb2012bdbf736c7e187a
SHA1

2d1197901aca6e7e331319a57ac3eeaf15245731
SHA256

74868d600acb1c900eb7643f849d64b4e029a0417d091b1833672bbc0eaf49a1
SHA512

d3b84833a751b58d70d3e590df0982c5965d8cfa81bfcce9eeca47dff42355201dc30d396a7ea69ec49823ee874c29ed4bf97a069aeabfe393e45bebc2cd2f77
SSDEEP

49152:NgMtttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt1:N

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

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\chjjzxqy = "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
2676	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\chjjzxqy\ImagePath = "C:\\Windows\\SysWOW64\\chjjzxqy\\gxtarquy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1836	gxtarquy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 3000	1836	gxtarquy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2788	sc.exe
2804	sc.exe
2896	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	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.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	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	gxtarquy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2632	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	30
PID 2200 wrote to memory of 2632	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	30
PID 2200 wrote to memory of 2632	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	30
PID 2200 wrote to memory of 2632	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	30
PID 2200 wrote to memory of 2800	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2800	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2800	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2800	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2788	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	34
PID 2200 wrote to memory of 2788	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	34
PID 2200 wrote to memory of 2788	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	34
PID 2200 wrote to memory of 2788	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	34
PID 2200 wrote to memory of 2804	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	36
PID 2200 wrote to memory of 2804	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	36
PID 2200 wrote to memory of 2804	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	36
PID 2200 wrote to memory of 2804	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	36
PID 2200 wrote to memory of 2896	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	38
PID 2200 wrote to memory of 2896	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	38
PID 2200 wrote to memory of 2896	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	38
PID 2200 wrote to memory of 2896	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	38
PID 2200 wrote to memory of 2676	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	41
PID 2200 wrote to memory of 2676	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	41
PID 2200 wrote to memory of 2676	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	41
PID 2200 wrote to memory of 2676	2200	6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe	41
PID 1836 wrote to memory of 3000	1836	gxtarquy.exe	43
PID 1836 wrote to memory of 3000	1836	gxtarquy.exe	43
PID 1836 wrote to memory of 3000	1836	gxtarquy.exe	43
PID 1836 wrote to memory of 3000	1836	gxtarquy.exe	43
PID 1836 wrote to memory of 3000	1836	gxtarquy.exe	43
PID 1836 wrote to memory of 3000	1836	gxtarquy.exe	43

C:\Users\Admin\AppData\Local\Temp\6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\chjjzxqy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gxtarquy.exe" C:\Windows\SysWOW64\chjjzxqy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create chjjzxqy binPath= "C:\Windows\SysWOW64\chjjzxqy\gxtarquy.exe /d\"C:\Users\Admin\AppData\Local\Temp\6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description chjjzxqy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start chjjzxqy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- 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:2676

C:\Windows\SysWOW64\chjjzxqy\gxtarquy.exe
C:\Windows\SysWOW64\chjjzxqy\gxtarquy.exe /d"C:\Users\Admin\AppData\Local\Temp\6744b518ec9ccb2012bdbf736c7e187a_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1836
- 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:3000

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\gxtarquy.exe

Filesize
11.7MB

MD5
088f2ca2a8051ed9290b43e9547c5260

SHA1
136668e5f54b890d62313d79ae3ba44dee36703b

SHA256
81af7b1616cdf0a0b24390ffb50a1fe3e87c2091d3bcf4536edaa53816801c4b

SHA512
7422fddcd7d772894f0c8d3ea54a4fca6b45d0ea829002419931aa7267b4a9aac6ade3cbdeb1b9836a2efd66e5f186c6aa1cde43eedac06c48809b1a78c599fc

Download Submit
memory/1836-15-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2200-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2200-3-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2200-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2200-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2200-8-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3000-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3000-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3000-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3000-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads