tofsee | 7ec2f5fa69e89fa6c3e23ff269f55517ad6ccf833db9c33d13abeae3fe0eaf0f

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-10-2024 01:40

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General

Target

15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe
Size

10.7MB
MD5

15abd71fa9afdedfbc3f64e46c477ded
SHA1

4497a99e9a59dd93c0cf04ea356f491ae39bf709
SHA256

7ec2f5fa69e89fa6c3e23ff269f55517ad6ccf833db9c33d13abeae3fe0eaf0f
SHA512

51f6016b01d29ca1d0b3f233de56fcf8fa9d31ed104f1a8be7c0f8fbe6ab15a4d6d0e2ba98bb5f759f180d9e1a8faa1b41ea523aba8b6b37e2beebed74c0f89d
SSDEEP

6144:tvk9RADRUv1CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP:uRAD

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\jbkuamrz = "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
2604	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\jbkuamrz\ImagePath = "C:\\Windows\\SysWOW64\\jbkuamrz\\oonteszc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2980	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2212	oonteszc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2212 set thread context of 2980	2212	oonteszc.exe	39

Launches sc.exe 3 IoCs

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

pid	Process
2100	sc.exe
2992	sc.exe
3060	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	15abd71fa9afdedfbc3f64e46c477ded_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	oonteszc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 1044	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	28
PID 2412 wrote to memory of 1044	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	28
PID 2412 wrote to memory of 1044	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	28
PID 2412 wrote to memory of 1044	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	28
PID 2412 wrote to memory of 2444	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	30
PID 2412 wrote to memory of 2444	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	30
PID 2412 wrote to memory of 2444	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	30
PID 2412 wrote to memory of 2444	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	30
PID 2412 wrote to memory of 2100	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	32
PID 2412 wrote to memory of 2100	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	32
PID 2412 wrote to memory of 2100	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	32
PID 2412 wrote to memory of 2100	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	32
PID 2412 wrote to memory of 2992	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	34
PID 2412 wrote to memory of 2992	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	34
PID 2412 wrote to memory of 2992	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	34
PID 2412 wrote to memory of 2992	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	34
PID 2412 wrote to memory of 3060	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	36
PID 2412 wrote to memory of 3060	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	36
PID 2412 wrote to memory of 3060	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	36
PID 2412 wrote to memory of 3060	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	36
PID 2212 wrote to memory of 2980	2212	oonteszc.exe	39
PID 2212 wrote to memory of 2980	2212	oonteszc.exe	39
PID 2212 wrote to memory of 2980	2212	oonteszc.exe	39
PID 2212 wrote to memory of 2980	2212	oonteszc.exe	39
PID 2212 wrote to memory of 2980	2212	oonteszc.exe	39
PID 2212 wrote to memory of 2980	2212	oonteszc.exe	39
PID 2412 wrote to memory of 2604	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	40
PID 2412 wrote to memory of 2604	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	40
PID 2412 wrote to memory of 2604	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	40
PID 2412 wrote to memory of 2604	2412	15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe	40

C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jbkuamrz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oonteszc.exe" C:\Windows\SysWOW64\jbkuamrz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2444
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jbkuamrz binPath= "C:\Windows\SysWOW64\jbkuamrz\oonteszc.exe /d\"C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jbkuamrz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jbkuamrz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3060
- 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:2604

C:\Windows\SysWOW64\jbkuamrz\oonteszc.exe
C:\Windows\SysWOW64\jbkuamrz\oonteszc.exe /d"C:\Users\Admin\AppData\Local\Temp\15abd71fa9afdedfbc3f64e46c477ded_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2212
- 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:2980

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\oonteszc.exe

Filesize
10.4MB

MD5
fc29f129ecdc83b737f5e269446e1545

SHA1
3bdb7bff3ee50471bdecbcea8038fcbaf8f2906a

SHA256
2e7131a742fe31ed013d5858d285b5ddf31b158d8581558ea0daa0e9ea6d6ad9

SHA512
bfd75ffec996b5606f2f3621f87bae710657f8253c5cadb7eec9792ae7e57f7d5810accf4ef1451b2d817ebe72fda83144188feb7515e56ee4dec6791730d56a

Download Submit
memory/2212-12-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2412-2-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2412-1-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2412-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2412-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2980-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads