tofsee | ca8cd50f6169f29ba5298e89fbf2ccaf1326dc507caa524131c25071e14855be

General

Target

2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe
Size

13.5MB
MD5

4988b1597a3f88204157ecb4755143d9
SHA1

8dce6f9d4b50546e7123a636057ba1aabf66f606
SHA256

ca8cd50f6169f29ba5298e89fbf2ccaf1326dc507caa524131c25071e14855be
SHA512

9de036a6270832d0ed18e4da9b4e24b661e0442b892fee72497a0b3676362319a9d509f2806315231ced9a03906d8ecfd39efa0a7513cd13e1625728b03d1019
SSDEEP

49152:5qL7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7Iy:5l

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
1412	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\gjegxyte\ImagePath = "C:\\Windows\\SysWOW64\\gjegxyte\\lkyaolme.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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
2144	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4296	lkyaolme.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4296 set thread context of 2144	4296	lkyaolme.exe	113

Launches sc.exe 3 IoCs

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

pid	Process
4780	sc.exe
4884	sc.exe
4924	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
4836	2280	WerFault.exe	85
3752	4296	WerFault.exe	106

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lkyaolme.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	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 968	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	96
PID 2280 wrote to memory of 968	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	96
PID 2280 wrote to memory of 968	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	96
PID 2280 wrote to memory of 1380	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	98
PID 2280 wrote to memory of 1380	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	98
PID 2280 wrote to memory of 1380	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	98
PID 2280 wrote to memory of 4780	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	100
PID 2280 wrote to memory of 4780	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	100
PID 2280 wrote to memory of 4780	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	100
PID 2280 wrote to memory of 4884	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	102
PID 2280 wrote to memory of 4884	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	102
PID 2280 wrote to memory of 4884	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	102
PID 2280 wrote to memory of 4924	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	104
PID 2280 wrote to memory of 4924	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	104
PID 2280 wrote to memory of 4924	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	104
PID 2280 wrote to memory of 1412	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	107
PID 2280 wrote to memory of 1412	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	107
PID 2280 wrote to memory of 1412	2280	2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe	107
PID 4296 wrote to memory of 2144	4296	lkyaolme.exe	113
PID 4296 wrote to memory of 2144	4296	lkyaolme.exe	113
PID 4296 wrote to memory of 2144	4296	lkyaolme.exe	113
PID 4296 wrote to memory of 2144	4296	lkyaolme.exe	113
PID 4296 wrote to memory of 2144	4296	lkyaolme.exe	113

C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gjegxyte\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lkyaolme.exe" C:\Windows\SysWOW64\gjegxyte\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gjegxyte binPath= "C:\Windows\SysWOW64\gjegxyte\lkyaolme.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gjegxyte "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gjegxyte
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4924
- 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:1412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2280 -s 1036
  2⤵
  - Program crash
  PID:4836

C:\Windows\SysWOW64\gjegxyte\lkyaolme.exe
C:\Windows\SysWOW64\gjegxyte\lkyaolme.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 540
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2280 -ip 2280
1⤵
PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4296 -ip 4296
1⤵
PID:1172

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\lkyaolme.exe

Filesize
12.2MB

MD5
9aa1e4070c1bc41bb2232c43a156e632

SHA1
d967110be630e7442eea7c358b6fd5d5d65fa2ab

SHA256
f0dd7dbde715968eee10d238e8ba9e452da76b0b1b7828e494db703a2ce069b5

SHA512
66a87e0ea1f1813212511bd882275ab7757ca619e25f17358a586df2492a56ce41ed553200149b0ed9474ad15c35e8c6f5f769dda3e9a6917ba4b86f804c86c1

Download Submit
memory/2144-14-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/2144-17-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/2144-16-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/2280-7-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/2280-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2280-8-0x00000000005F0000-0x0000000000603000-memory.dmp

Filesize
76KB

Download
memory/2280-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-2-0x00000000005F0000-0x0000000000603000-memory.dmp

Filesize
76KB

Download
memory/4296-11-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/4296-13-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/4296-12-0x0000000000400000-0x0000000000522000-memory.dmp

Filesize
1.1MB

Download
memory/4296-18-0x0000000000400000-0x0000000000522000-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