tofsee | d3e803eeb70ddbfc8156b770fd62b409c6f0041e04eb7a6bd83ada319ac1a03c

General

Target

2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe
Size

10.7MB
MD5

25f6954599436d8d8a90d50e0c3f0641
SHA1

e592d127dc719a07390093839714c6049267956d
SHA256

d3e803eeb70ddbfc8156b770fd62b409c6f0041e04eb7a6bd83ada319ac1a03c
SHA512

661df871289cbc313baf82ee32e38a8a5ce57b43682b2e21cffcb33f9b40b21fdf1d43554bc514dde04beb6a08dc3fb4b032d81dd8b59309c302384fc0487af5
SSDEEP

6144:V2MDRs+9skCSisUPOdxJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJx:V2y6eCSio

Score

10^/10

tofsee defense_evasion discovery 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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4984	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\kglxjsgg\ImagePath = "C:\\Windows\\SysWOW64\\kglxjsgg\\erdatglv.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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
1168	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1972	erdatglv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 1168	1972	erdatglv.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4448	sc.exe
4540	sc.exe
4544	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
3544	1972	WerFault.exe	100
5724	5276	WerFault.exe	84

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	erdatglv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5276 wrote to memory of 4112	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	87
PID 5276 wrote to memory of 4112	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	87
PID 5276 wrote to memory of 4112	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	87
PID 5276 wrote to memory of 1408	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	90
PID 5276 wrote to memory of 1408	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	90
PID 5276 wrote to memory of 1408	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	90
PID 5276 wrote to memory of 4448	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	92
PID 5276 wrote to memory of 4448	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	92
PID 5276 wrote to memory of 4448	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	92
PID 5276 wrote to memory of 4540	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	96
PID 5276 wrote to memory of 4540	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	96
PID 5276 wrote to memory of 4540	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	96
PID 5276 wrote to memory of 4544	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	98
PID 5276 wrote to memory of 4544	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	98
PID 5276 wrote to memory of 4544	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	98
PID 1972 wrote to memory of 1168	1972	erdatglv.exe	101
PID 1972 wrote to memory of 1168	1972	erdatglv.exe	101
PID 1972 wrote to memory of 1168	1972	erdatglv.exe	101
PID 1972 wrote to memory of 1168	1972	erdatglv.exe	101
PID 1972 wrote to memory of 1168	1972	erdatglv.exe	101
PID 5276 wrote to memory of 4984	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	105
PID 5276 wrote to memory of 4984	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	105
PID 5276 wrote to memory of 4984	5276	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5276
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kglxjsgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\erdatglv.exe" C:\Windows\SysWOW64\kglxjsgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kglxjsgg binPath= "C:\Windows\SysWOW64\kglxjsgg\erdatglv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kglxjsgg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kglxjsgg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4544
- 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:4984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5276 -s 1048
  2⤵
  - Program crash
  PID:5724

C:\Windows\SysWOW64\kglxjsgg\erdatglv.exe
C:\Windows\SysWOW64\kglxjsgg\erdatglv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1972 -s 508
  2⤵
  - Program crash
  PID:3544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1972 -ip 1972
1⤵
PID:3368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 5276 -ip 5276
1⤵
PID:5184

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\erdatglv.exe

Filesize
10.7MB

MD5
6173216f69490cc59eec498520708add

SHA1
f23368d5a6f59f77b49ec42f00fee04a506a022b

SHA256
5176bd3bb892c015f45a43a8b416ed82a217d6c5038ee57124cf1a9de0fa5e08

SHA512
2f0cabdf5b3567723b94d06f7294630713e2bac91ab3409c4c14580b80b51d35d230276bbc085b2fae1d05983be397babb976d7afaaa0dbdac7ebd400b77c58b

Download Submit
memory/1168-8-0x0000000000780000-0x0000000000795000-memory.dmp

Filesize
84KB

Download
memory/1168-14-0x0000000000780000-0x0000000000795000-memory.dmp

Filesize
84KB

Download
memory/1168-15-0x0000000000780000-0x0000000000795000-memory.dmp

Filesize
84KB

Download
memory/1972-10-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/5276-1-0x0000000006FE0000-0x00000000070E0000-memory.dmp

Filesize
1024KB

Download
memory/5276-2-0x0000000006FB0000-0x0000000006FC3000-memory.dmp

Filesize
76KB

Download
memory/5276-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5276-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5276-12-0x0000000006FB0000-0x0000000006FC3000-memory.dmp

Filesize
76KB

Download
memory/5276-11-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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