tofsee | 053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30

General

Target

053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe
Size

11.9MB
MD5

8d0341e2f29fe413381e62419f0c517d
SHA1

3d245dae612e7854a68ccf35644e2e9009bd31a5
SHA256

053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30
SHA512

9ce23b8d972dcbb8ac6269dee84dbf55281d0abe3bfeb892c05745d18da9cf2a7d21759df50b6e718ccd5833cef94ab29bb3c136c7e5242f80b1da9b93bc5403
SSDEEP

3072:uLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:3OMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
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
2560	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\qykgwnid\ImagePath = "C:\\Windows\\SysWOW64\\qykgwnid\\hmwrlxuw.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe

Deletes itself 1 IoCs

pid	Process
1708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3960	hmwrlxuw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3960 set thread context of 1708	3960	hmwrlxuw.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2176	sc.exe
2172	sc.exe
3508	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5068	216	WerFault.exe	83
512	3960	WerFault.exe	94

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	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.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	hmwrlxuw.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 216 wrote to memory of 1112	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	84
PID 216 wrote to memory of 1112	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	84
PID 216 wrote to memory of 1112	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	84
PID 216 wrote to memory of 4564	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	86
PID 216 wrote to memory of 4564	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	86
PID 216 wrote to memory of 4564	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	86
PID 216 wrote to memory of 2176	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	88
PID 216 wrote to memory of 2176	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	88
PID 216 wrote to memory of 2176	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	88
PID 216 wrote to memory of 2172	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	90
PID 216 wrote to memory of 2172	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	90
PID 216 wrote to memory of 2172	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	90
PID 216 wrote to memory of 3508	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	92
PID 216 wrote to memory of 3508	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	92
PID 216 wrote to memory of 3508	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	92
PID 216 wrote to memory of 2560	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	95
PID 216 wrote to memory of 2560	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	95
PID 216 wrote to memory of 2560	216	053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe	95
PID 3960 wrote to memory of 1708	3960	hmwrlxuw.exe	100
PID 3960 wrote to memory of 1708	3960	hmwrlxuw.exe	100
PID 3960 wrote to memory of 1708	3960	hmwrlxuw.exe	100
PID 3960 wrote to memory of 1708	3960	hmwrlxuw.exe	100
PID 3960 wrote to memory of 1708	3960	hmwrlxuw.exe	100

C:\Users\Admin\AppData\Local\Temp\053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe
"C:\Users\Admin\AppData\Local\Temp\053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qykgwnid\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hmwrlxuw.exe" C:\Windows\SysWOW64\qykgwnid\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qykgwnid binPath= "C:\Windows\SysWOW64\qykgwnid\hmwrlxuw.exe /d\"C:\Users\Admin\AppData\Local\Temp\053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qykgwnid "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qykgwnid
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3508
- 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:2560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 644
  2⤵
  - Program crash
  PID:5068

C:\Windows\SysWOW64\qykgwnid\hmwrlxuw.exe
C:\Windows\SysWOW64\qykgwnid\hmwrlxuw.exe /d"C:\Users\Admin\AppData\Local\Temp\053fabc1ed76327272fb89724448f254a98cd8e62b266e0f70a1747ef8f8cc30.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3960 -s 556
  2⤵
  - Program crash
  PID:512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 216 -ip 216
1⤵
PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3960 -ip 3960
1⤵
PID:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hmwrlxuw.exe

Filesize
14.8MB

MD5
2597ccf18c2ff7d7190640d7b145c98a

SHA1
2b503e72f28850064946b72ba8a07a14f6c63820

SHA256
dbde0896fb8c34861cbb705f1f1ad2bcc4bebb326ce78eff2c7cbdbfa539669f

SHA512
e0900cc9c6d54ac8c0f1b67ea4005cb385d20fb724f08f35ab8b39de8c5fc131e3c26003771e5c207ce0fcd58dd0b8b00267bf73f675f7c8440550ad9bb8fb6a

Download Submit
memory/216-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/216-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/216-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/216-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/216-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/216-1-0x00000000007E0000-0x00000000008E0000-memory.dmp

Filesize
1024KB

Download
memory/1708-14-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/1708-16-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/1708-17-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/3960-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3960-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3960-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3960-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads