remcos | 0ca989caf3674f15e7072c37e9c89c48cef3500f0f02bc1f3786f71625869c1a

Analysis

max time kernel
148s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
11/02/2025, 15:27

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General

Target

TELEFONOS DE MEXICO.exe
Size

969KB
MD5

f9538485432d3ec640f89096ba2d4d00
SHA1

b050b847b1fe8be78d56b29bd23c25e05c227a92
SHA256

5d695d8a0bb1d919cc77a2aa2488a61797bfa065238160278ee458120630aaf9
SHA512

ea7aeedd15f4d6a6005f8cfb7d404dfb0c302c837e48de7e3ff44d7d5908f8de6c0a81f736d874a491eddc89fdf753976be6f635e7e8512f5abb7f32caa8cfc5
SSDEEP

24576:oFZAiQHDhht8m7FpUi1L1OXJz5zzz3zzzozzz3zzzNz:CZAiQHlhtz7FpWdwz

Score

10^/10

remcos fileooo discovery rat

Malware Config

Extracted

Family

remcos

Botnet

fileooo

188.127.225.33:5637

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
65-VD9T89
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Downloads MZ/PE file 1 IoCs

flow	pid	Process
57	2860	Process not Found

Suspicious use of SetThreadContext 9 IoCs

description	pid	Process	procid_target
PID 2980 set thread context of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 set thread context of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 set thread context of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 set thread context of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 set thread context of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 set thread context of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 set thread context of 1680	2980	TELEFONOS DE MEXICO.exe	95
PID 2980 set thread context of 3292	2980	TELEFONOS DE MEXICO.exe	96
PID 2980 set thread context of 776	2980	TELEFONOS DE MEXICO.exe	97

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5096	1680	WerFault.exe	95
224	1688	WerFault.exe	90

System Location Discovery: System Language Discovery 1 TTPs 2 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	aspnet_wp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1896	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 4536	2980	TELEFONOS DE MEXICO.exe	86
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3468	2980	TELEFONOS DE MEXICO.exe	87
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 3436	2980	TELEFONOS DE MEXICO.exe	88
PID 2980 wrote to memory of 732	2980	TELEFONOS DE MEXICO.exe	89
PID 2980 wrote to memory of 732	2980	TELEFONOS DE MEXICO.exe	89
PID 2980 wrote to memory of 732	2980	TELEFONOS DE MEXICO.exe	89
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 1688	2980	TELEFONOS DE MEXICO.exe	90
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 2348	2980	TELEFONOS DE MEXICO.exe	91
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 4808	2980	TELEFONOS DE MEXICO.exe	93
PID 2980 wrote to memory of 1696	2980	TELEFONOS DE MEXICO.exe	94

C:\Users\Admin\AppData\Local\Temp\TELEFONOS DE MEXICO.exe
"C:\Users\Admin\AppData\Local\Temp\TELEFONOS DE MEXICO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4536
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:3468
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:3436
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:732
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  PID:1688
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 12
    3⤵
    - Program crash
    PID:224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:2348
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:4808
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:1696
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  PID:1680
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 12
    3⤵
    - Program crash
    PID:5096
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:3292
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1680 -ip 1680
1⤵
PID:1244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1688 -ip 1688
1⤵
PID:968

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTc1ODEyMDMwIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/776-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2348-16-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2980-24-0x00007FF7A9A90000-0x00007FF7A9B88000-memory.dmp

Filesize
992KB

Download
memory/3292-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3436-13-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3436-9-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3436-10-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3468-6-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3468-12-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3468-4-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-1-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-7-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-0-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-2-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-26-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-11-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-30-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-31-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4536-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4808-18-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download