tofsee | 295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 22:30

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General

Target

295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe
Size

71KB
MD5

70f1e7a328be9195b2f73a10de1ca4b9
SHA1

2fb0843ffd6852ab931958ae6d9375a833f1e441
SHA256

295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627
SHA512

1f006ac611ae1130b6f245a51bacfcfb58f5cd01385ca4561d8817eb951daf3312a05fa3966f4598d940b11276a7f7f3a8adeec359978ed43f16179643a9fd4d
SSDEEP

1536:Dk3s21VCAe/TxSYS+q4TjFWL9JdpIAUc:DmVCAExSYHq4FApIb

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\zeozmjjo = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2900	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\zeozmjjo\ImagePath = "C:\\Windows\\SysWOW64\\zeozmjjo\\exiyjgzs.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2904	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3020	exiyjgzs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2904	3020	exiyjgzs.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2976	sc.exe
2344	sc.exe
2748	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	exiyjgzs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2480	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	30
PID 2108 wrote to memory of 2480	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	30
PID 2108 wrote to memory of 2480	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	30
PID 2108 wrote to memory of 2480	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	30
PID 2108 wrote to memory of 1172	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	32
PID 2108 wrote to memory of 1172	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	32
PID 2108 wrote to memory of 1172	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	32
PID 2108 wrote to memory of 1172	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	32
PID 2108 wrote to memory of 2976	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	34
PID 2108 wrote to memory of 2976	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	34
PID 2108 wrote to memory of 2976	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	34
PID 2108 wrote to memory of 2976	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	34
PID 2108 wrote to memory of 2344	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	36
PID 2108 wrote to memory of 2344	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	36
PID 2108 wrote to memory of 2344	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	36
PID 2108 wrote to memory of 2344	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	36
PID 2108 wrote to memory of 2748	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	38
PID 2108 wrote to memory of 2748	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	38
PID 2108 wrote to memory of 2748	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	38
PID 2108 wrote to memory of 2748	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	38
PID 2108 wrote to memory of 2900	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	40
PID 2108 wrote to memory of 2900	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	40
PID 2108 wrote to memory of 2900	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	40
PID 2108 wrote to memory of 2900	2108	295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe	40
PID 3020 wrote to memory of 2904	3020	exiyjgzs.exe	43
PID 3020 wrote to memory of 2904	3020	exiyjgzs.exe	43
PID 3020 wrote to memory of 2904	3020	exiyjgzs.exe	43
PID 3020 wrote to memory of 2904	3020	exiyjgzs.exe	43
PID 3020 wrote to memory of 2904	3020	exiyjgzs.exe	43
PID 3020 wrote to memory of 2904	3020	exiyjgzs.exe	43

C:\Users\Admin\AppData\Local\Temp\295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe
"C:\Users\Admin\AppData\Local\Temp\295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zeozmjjo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\exiyjgzs.exe" C:\Windows\SysWOW64\zeozmjjo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zeozmjjo binPath= "C:\Windows\SysWOW64\zeozmjjo\exiyjgzs.exe /d\"C:\Users\Admin\AppData\Local\Temp\295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zeozmjjo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zeozmjjo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2900

C:\Windows\SysWOW64\zeozmjjo\exiyjgzs.exe
C:\Windows\SysWOW64\zeozmjjo\exiyjgzs.exe /d"C:\Users\Admin\AppData\Local\Temp\295abf468b9fe0a935544ef8f1dd3048bb458395ec88011decd5f948ebaea627.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020
- 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:2904

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\exiyjgzs.exe

Filesize
10.5MB

MD5
46a10d834c2bf147b4d74e911c902342

SHA1
a9882978deb5fa437aa704623ce2aa136ec57fd0

SHA256
c386af4e5ee1870109561aa94e3f0647f563e01fa2c16c9d1dd6375d8b606e65

SHA512
ff8950d0e95b68834725fa6d4f2739a1b5420469121fbb7f37ac53c8f8aaa9879582dafca5c85f855002390f8fd72b91612844799f0db5a6ed363c9fb5c27f77

Download Submit
memory/2904-3-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2904-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2904-6-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2904-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2904-9-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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