tofsee | d46421db9e494d84927336c31c562240b2ff081429e02199e9d85e3e050ca033

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24-09-2024 07:21

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General

Target

202409246577141f035830a975a4a321fa116d92mafia.exe
Size

10.6MB
MD5

6577141f035830a975a4a321fa116d92
SHA1

2f7c6acd12193bfa417bfa44c9127df92f87c74f
SHA256

d46421db9e494d84927336c31c562240b2ff081429e02199e9d85e3e050ca033
SHA512

34f67c602b41c79db84d82bb26f413691c69f3b4a208ddd395598432c0cca2f39d1abc0ba07a29c96aa3f4a750d4b9adf015d6febe716de4ac4c0e7e93aa0bb0
SSDEEP

6144:E+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:E+r1IeSXMXc7LlxWV4Ug97GZ+ej

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\dyhvzmyq = "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
2204	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\dyhvzmyq\ImagePath = "C:\\Windows\\SysWOW64\\dyhvzmyq\\qsnevpwp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2688	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	qsnevpwp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2688	2832	qsnevpwp.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2680	sc.exe
476	sc.exe
2480	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	202409246577141f035830a975a4a321fa116d92mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qsnevpwp.exe
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 1912	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	31
PID 1624 wrote to memory of 1912	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	31
PID 1624 wrote to memory of 1912	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	31
PID 1624 wrote to memory of 1912	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	31
PID 1624 wrote to memory of 1736	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	33
PID 1624 wrote to memory of 1736	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	33
PID 1624 wrote to memory of 1736	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	33
PID 1624 wrote to memory of 1736	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	33
PID 1624 wrote to memory of 476	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	35
PID 1624 wrote to memory of 476	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	35
PID 1624 wrote to memory of 476	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	35
PID 1624 wrote to memory of 476	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	35
PID 1624 wrote to memory of 2480	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	37
PID 1624 wrote to memory of 2480	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	37
PID 1624 wrote to memory of 2480	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	37
PID 1624 wrote to memory of 2480	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	37
PID 1624 wrote to memory of 2680	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	39
PID 1624 wrote to memory of 2680	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	39
PID 1624 wrote to memory of 2680	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	39
PID 1624 wrote to memory of 2680	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	39
PID 2832 wrote to memory of 2688	2832	qsnevpwp.exe	42
PID 2832 wrote to memory of 2688	2832	qsnevpwp.exe	42
PID 2832 wrote to memory of 2688	2832	qsnevpwp.exe	42
PID 2832 wrote to memory of 2688	2832	qsnevpwp.exe	42
PID 2832 wrote to memory of 2688	2832	qsnevpwp.exe	42
PID 2832 wrote to memory of 2688	2832	qsnevpwp.exe	42
PID 1624 wrote to memory of 2204	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	43
PID 1624 wrote to memory of 2204	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	43
PID 1624 wrote to memory of 2204	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	43
PID 1624 wrote to memory of 2204	1624	202409246577141f035830a975a4a321fa116d92mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\202409246577141f035830a975a4a321fa116d92mafia.exe
"C:\Users\Admin\AppData\Local\Temp\202409246577141f035830a975a4a321fa116d92mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dyhvzmyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qsnevpwp.exe" C:\Windows\SysWOW64\dyhvzmyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dyhvzmyq binPath= "C:\Windows\SysWOW64\dyhvzmyq\qsnevpwp.exe /d\"C:\Users\Admin\AppData\Local\Temp\202409246577141f035830a975a4a321fa116d92mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dyhvzmyq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2480
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dyhvzmyq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- 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:2204

C:\Windows\SysWOW64\dyhvzmyq\qsnevpwp.exe
C:\Windows\SysWOW64\dyhvzmyq\qsnevpwp.exe /d"C:\Users\Admin\AppData\Local\Temp\202409246577141f035830a975a4a321fa116d92mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- 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:2688

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\qsnevpwp.exe

Filesize
11.3MB

MD5
719aebe697304bd6110e2a469a0b5026

SHA1
1541a7077c752228f095922f2234cbafe8446e66

SHA256
d97b6aa8ca3b2a130b848959255b52b05ac2848f5ccf75caef131839dca87db0

SHA512
b01984a29966256b3116652284153f78aafc41791388951e2ae6b895d1a7a8d8a7843497f3d32e106c3da0e3268a4db472e2981ab3be27dc8bef62d4db9a2b10

Download Submit
memory/1624-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/1624-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1624-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1624-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-7-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2832-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads