tofsee | 1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00

General

Target

1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe
Size

219KB
MD5

4f7ba95b7c8b74d0d1b62314192c5f90
SHA1

076667f044a302714a0b9bbe87c96a2db02ece7b
SHA256

1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00
SHA512

6f26213119178a2a5962ffa30c18a2cb23a5ae073da9df404a253a58c41b88e4fe6a6fbb0091efb34d04bffb6c99b413e16dfc7d9cbca8b5b1a17bc282f8564b
SSDEEP

3072:hrHIQm9TOcx4AGPmQ2OvWRNqxDJMIeALuIcY3bCl2OVdRUXqHy5kVw+HM:ZHUMPOyJveAao3afQ2VxHM

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
4420	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\jglcprbx\ImagePath = "C:\\Windows\\SysWOW64\\jglcprbx\\amlzkucw.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe

Deletes itself 1 IoCs

pid	Process
3364	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
924	amlzkucw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 924 set thread context of 3364	924	amlzkucw.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2420	sc.exe
516	sc.exe
2264	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
404	4528	WerFault.exe	82

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	amlzkucw.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4528 wrote to memory of 4844	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	83
PID 4528 wrote to memory of 4844	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	83
PID 4528 wrote to memory of 4844	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	83
PID 4528 wrote to memory of 3004	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	85
PID 4528 wrote to memory of 3004	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	85
PID 4528 wrote to memory of 3004	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	85
PID 4528 wrote to memory of 2420	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	87
PID 4528 wrote to memory of 2420	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	87
PID 4528 wrote to memory of 2420	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	87
PID 4528 wrote to memory of 516	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	90
PID 4528 wrote to memory of 516	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	90
PID 4528 wrote to memory of 516	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	90
PID 4528 wrote to memory of 2264	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	92
PID 4528 wrote to memory of 2264	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	92
PID 4528 wrote to memory of 2264	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	92
PID 4528 wrote to memory of 4420	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	95
PID 4528 wrote to memory of 4420	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	95
PID 4528 wrote to memory of 4420	4528	1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe	95
PID 924 wrote to memory of 3364	924	amlzkucw.exe	101
PID 924 wrote to memory of 3364	924	amlzkucw.exe	101
PID 924 wrote to memory of 3364	924	amlzkucw.exe	101
PID 924 wrote to memory of 3364	924	amlzkucw.exe	101
PID 924 wrote to memory of 3364	924	amlzkucw.exe	101

C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe
"C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jglcprbx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\amlzkucw.exe" C:\Windows\SysWOW64\jglcprbx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jglcprbx binPath= "C:\Windows\SysWOW64\jglcprbx\amlzkucw.exe /d\"C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jglcprbx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jglcprbx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- 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:4420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 1040
  2⤵
  - Program crash
  PID:404

C:\Windows\SysWOW64\jglcprbx\amlzkucw.exe
C:\Windows\SysWOW64\jglcprbx\amlzkucw.exe /d"C:\Users\Admin\AppData\Local\Temp\1180b0c41b2c32e770ae110ca2668a8e4f6e961cc25abac36989eb4cf750bc00N.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:924
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4528 -ip 4528
1⤵
PID:724

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\amlzkucw.exe

Filesize
11.2MB

MD5
67fc4b0e34e6fb18695ddb461335f3eb

SHA1
256ff7478d1946e2e5e89a0ab870736febf83a1a

SHA256
246a8b86a4a5278c8e71ca17876b1e09e9844bf7acfad7cbf9189ab82a91cd84

SHA512
dd5f4d0ca2318988f25c55e223ffe419d48844384f91d21bbe25d872b409c743158e405a8efdaf5ba789333e72f6539334289ba6568d64098f5e2cbac47c472d

Download Submit
memory/924-14-0x0000000000400000-0x0000000002BAD000-memory.dmp

Filesize
39.7MB

Download
memory/3364-11-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/3364-13-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/3364-15-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/4528-1-0x0000000002E00000-0x0000000002F00000-memory.dmp

Filesize
1024KB

Download
memory/4528-2-0x0000000002D10000-0x0000000002D23000-memory.dmp

Filesize
76KB

Download
memory/4528-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4528-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4528-8-0x0000000002D10000-0x0000000002D23000-memory.dmp

Filesize
76KB

Download
memory/4528-7-0x0000000000400000-0x0000000002BAD000-memory.dmp

Filesize
39.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads