tofsee | 66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 06:44

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General

Target

JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe
Size

238KB
MD5

8271ce4f3cbd9b09bf15c5a68e88b0da
SHA1

8a67d568576e34c1c6e94b61f659f450df2ef96d
SHA256

66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac
SHA512

27c67f1762515a99e1260866235aee0904685144af6f09bb5c384a0caca2e95438310b690f12e32b8d46d349d9027d2d76a589bcfdaed3c75e69ce05dd2a0bd4
SSDEEP

3072:a7V2YJR9xNKX/hxlknRrKpyCaU0m+J2x5UrqGjcxSVggjcGkNIVqI7sxkgaBChMg:bYr9xNKXSnQMmJWr0K7ITsq7igavwVf

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\eqwqtmst = "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
2576	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\eqwqtmst\ImagePath = "C:\\Windows\\SysWOW64\\eqwqtmst\\opnxatyj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	opnxatyj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2056	2828	opnxatyj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2736	sc.exe
2604	sc.exe
2712	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	netsh.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	opnxatyj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.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 2160 wrote to memory of 2796	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	30
PID 2160 wrote to memory of 2796	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	30
PID 2160 wrote to memory of 2796	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	30
PID 2160 wrote to memory of 2796	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	30
PID 2160 wrote to memory of 2788	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	32
PID 2160 wrote to memory of 2788	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	32
PID 2160 wrote to memory of 2788	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	32
PID 2160 wrote to memory of 2788	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	32
PID 2160 wrote to memory of 2736	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	34
PID 2160 wrote to memory of 2736	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	34
PID 2160 wrote to memory of 2736	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	34
PID 2160 wrote to memory of 2736	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	34
PID 2160 wrote to memory of 2604	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	36
PID 2160 wrote to memory of 2604	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	36
PID 2160 wrote to memory of 2604	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	36
PID 2160 wrote to memory of 2604	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	36
PID 2160 wrote to memory of 2712	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	38
PID 2160 wrote to memory of 2712	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	38
PID 2160 wrote to memory of 2712	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	38
PID 2160 wrote to memory of 2712	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	38
PID 2160 wrote to memory of 2576	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	41
PID 2160 wrote to memory of 2576	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	41
PID 2160 wrote to memory of 2576	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	41
PID 2160 wrote to memory of 2576	2160	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	41
PID 2828 wrote to memory of 2056	2828	opnxatyj.exe	43
PID 2828 wrote to memory of 2056	2828	opnxatyj.exe	43
PID 2828 wrote to memory of 2056	2828	opnxatyj.exe	43
PID 2828 wrote to memory of 2056	2828	opnxatyj.exe	43
PID 2828 wrote to memory of 2056	2828	opnxatyj.exe	43
PID 2828 wrote to memory of 2056	2828	opnxatyj.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eqwqtmst\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\opnxatyj.exe" C:\Windows\SysWOW64\eqwqtmst\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eqwqtmst binPath= "C:\Windows\SysWOW64\eqwqtmst\opnxatyj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eqwqtmst "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eqwqtmst
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:2576

C:\Windows\SysWOW64\eqwqtmst\opnxatyj.exe
C:\Windows\SysWOW64\eqwqtmst\opnxatyj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2056

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\opnxatyj.exe

Filesize
12.0MB

MD5
f73f55ed726cc2c193910c370d439e7b

SHA1
2304d23abb7a83911659799596e1fb4ea24d568a

SHA256
6a6739bc04c7012c750d467b9d846bbe145ea6ace7fc1d2c59b753cfca790e3d

SHA512
a00f18f544f9b081cb7eb082e66c126fa940a47f60dce291895bbc6613aeace79d3574e4db997ca91f60b793ea354244872254b41305a45c35d186ccb10bc24d

Download Submit
memory/2056-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2056-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2056-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2056-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2056-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2160-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2160-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2160-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2160-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2160-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2828-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads