tofsee | 6ef63158e5bd1d1c10729f312a724516ec1b743f6af62b70ccfe4222b5b812ed

Analysis

max time kernel
150s
max time network
114s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/07/2026, 18:45

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-07-31_34374987977df6f217154242b1566a50_amadey_elex_remcos_smoke-loader.exe
Size 10.3MB
Sample260731-xd41dsem6s
SHA256 6ef63158e5bd1d1c10729f312a724516ec1b743f6af62b70ccfe4222b5b812ed
MD5 34374987977df6f217154242b1566a50
SHA1 13679d23f92be09d9e0835e32828143f96b5df5a
SHA512 8be25db1daa42221de9119b3d36e56a81df1677c0d8eff7532a5c1a5c2cd30841e939ea2e5ea1ba8ad59e239ce2393d5eabbf4a0b0674804dc1b9083f61a4db9
SSDEEP 49152:yawwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwX:y
TLSH
T1BCB65C70D4B38A3EC470067CBB193B155ABFE7B0DB8925F6939008F3586B955386628F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery tofsee trojan

Malware Config

Signatures

Family: Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5436	472	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 1 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	2026-07-31_34374987977df6f217154242b1566a50_amadey_elex_remcos_smoke-loader.exe

C:\Users\Admin\AppData\Local\Temp\2026-07-31_34374987977df6f217154242b1566a50_amadey_elex_remcos_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-31_34374987977df6f217154242b1566a50_amadey_elex_remcos_smoke-loader.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 472 -s 332
  2⤵
  - Program crash
  PID:5436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 472 -ip 472
1⤵
PID:3760

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/472-2-0x0000000000A50000-0x0000000000A63000-memory.dmp

Download

memory/472-1-0x0000000000A70000-0x0000000000B70000-memory.dmp