tofsee | c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591

General

Target

c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe
Size

10.5MB
MD5

f437958a717001f8bb29ca023faf9bb7
SHA1

6771eacfab06f9290ca7276974e206316739e8bb
SHA256

c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591
SHA512

37b3ea8fe4ac0288611010d69da0556c105eb3a886c512d4047f70f335dee9ce4cf76d5eda46d627a0d2965a187aa6ce0f434c279d8c64db25b8b4dcc059c6ff
SSDEEP

12288:jnWdwQB3a1ZAXYlVR7jbMviJvK3SRL/R/R/R/R/R/R/R/R/R/R/R/R/R/R/R/R/D:jnWdFB3a1ZLlsviJv9

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
2580	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\njjlupue\ImagePath = "C:\\Windows\\SysWOW64\\njjlupue\\odijdloh.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	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe

Deletes itself 1 IoCs

pid	Process
512	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2252	odijdloh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 512	2252	odijdloh.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3056	sc.exe
4692	sc.exe
3932	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
4800	2104	WerFault.exe	81
4464	2252	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	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	odijdloh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 1420	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	82
PID 2104 wrote to memory of 1420	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	82
PID 2104 wrote to memory of 1420	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	82
PID 2104 wrote to memory of 1676	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	84
PID 2104 wrote to memory of 1676	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	84
PID 2104 wrote to memory of 1676	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	84
PID 2104 wrote to memory of 3056	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	86
PID 2104 wrote to memory of 3056	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	86
PID 2104 wrote to memory of 3056	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	86
PID 2104 wrote to memory of 4692	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	88
PID 2104 wrote to memory of 4692	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	88
PID 2104 wrote to memory of 4692	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	88
PID 2104 wrote to memory of 3932	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	92
PID 2104 wrote to memory of 3932	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	92
PID 2104 wrote to memory of 3932	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	92
PID 2104 wrote to memory of 2580	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	95
PID 2104 wrote to memory of 2580	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	95
PID 2104 wrote to memory of 2580	2104	c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe	95
PID 2252 wrote to memory of 512	2252	odijdloh.exe	102
PID 2252 wrote to memory of 512	2252	odijdloh.exe	102
PID 2252 wrote to memory of 512	2252	odijdloh.exe	102
PID 2252 wrote to memory of 512	2252	odijdloh.exe	102
PID 2252 wrote to memory of 512	2252	odijdloh.exe	102

C:\Users\Admin\AppData\Local\Temp\c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe
"C:\Users\Admin\AppData\Local\Temp\c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\njjlupue\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\odijdloh.exe" C:\Windows\SysWOW64\njjlupue\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create njjlupue binPath= "C:\Windows\SysWOW64\njjlupue\odijdloh.exe /d\"C:\Users\Admin\AppData\Local\Temp\c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description njjlupue "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start njjlupue
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3932
- 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:2580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 1244
  2⤵
  - Program crash
  PID:4800

C:\Windows\SysWOW64\njjlupue\odijdloh.exe
C:\Windows\SysWOW64\njjlupue\odijdloh.exe /d"C:\Users\Admin\AppData\Local\Temp\c205b7fe1ffd71e1a00dbd175dde5352aa7e7e7c81754994c5ad0923e629d591.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 528
  2⤵
  - Program crash
  PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2104 -ip 2104
1⤵
PID:2356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2252 -ip 2252
1⤵
PID:1688

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\odijdloh.exe

Filesize
12.7MB

MD5
b8d7bdc50e623deba0ce15574d9e9a36

SHA1
a7e10cfb7ef5e4bb9c8607cea54001cc99d777cd

SHA256
20a107019f5640a15fe19f06f327fa74fb72bb9c1fc6bb98383afd30cb542d95

SHA512
79fd58659184c4d862486ead9462af1d175a9e2e67d8bffef196e8e4531f1b8b5332116d80e864af6e93fd740c12a23c9ebddd6a8485453f084a775278ba20f4

Download Submit
memory/512-12-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/512-14-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/512-15-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/2104-1-0x00000000008E0000-0x00000000009E0000-memory.dmp

Filesize
1024KB

Download
memory/2104-2-0x0000000000810000-0x0000000000823000-memory.dmp

Filesize
76KB

Download
memory/2104-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2104-9-0x0000000000810000-0x0000000000823000-memory.dmp

Filesize
76KB

Download
memory/2252-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2252-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads