remcos | 317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 22:28

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General

Target

317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe
Size

973KB
MD5

6fe54bc668928242bae70a31dc0b5a34
SHA1

2c5eea3caa2cbed83a311efdd1a68c0205db1175
SHA256

317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87
SHA512

cde3a253403a5936a6b7aaa6dee6f194121a61f52772a96bdb727d56134866b42e27e8384e760b5f83b7cde1eabcc067f5046f490963af87904f48ee2e2dae5c
SSDEEP

24576:YQ3AghukvVdP/tGOn0b7hvtbL67vgnEz9Z1zSB:YQQRIobXL6zgEz9ZNSB

Score

10^/10

remcos host discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Host

oyo.work.gd:3142

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
pdf
mouse_option
false
mutex
jkm-I9KENP
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
ios
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 516 set thread context of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93

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	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4836	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93
PID 516 wrote to memory of 4836	516	317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe	93

C:\Users\Admin\AppData\Local\Temp\317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe
"C:\Users\Admin\AppData\Local\Temp\317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:516
- C:\Users\Admin\AppData\Local\Temp\317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe
  "C:\Users\Admin\AppData\Local\Temp\317d12a9179fccb79792d2f7bf33b31549a9e45ddfdde7c5bfa4210bbdfdad87.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4836

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\pdf\logs.dat

Filesize
144B

MD5
3511a6e74e5480cbb49f1683a0c6c84b

SHA1
20cafd3db16610b8c671462310a4c86c31ea9791

SHA256
57f095b086c5e055f068c599f645a68518b3ae68bb8ffdbeb2921a6afb66aae2

SHA512
d49f8f54bb28a11ca076a77dcc45310a5e17a923bfe5f90eb3a043a15616b10977cbbea1b6e3bafaa6d269185ba1940b412efea74052a7382d0ff3c13e5a7e5f

Download Submit
memory/516-6-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/516-2-0x0000000005600000-0x0000000005BA4000-memory.dmp

Filesize
5.6MB

Download
memory/516-3-0x0000000005050000-0x00000000050E2000-memory.dmp

Filesize
584KB

Download
memory/516-4-0x0000000005030000-0x000000000503A000-memory.dmp

Filesize
40KB

Download
memory/516-5-0x0000000005320000-0x00000000053BC000-memory.dmp

Filesize
624KB

Download
memory/516-21-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/516-7-0x00000000750AE000-0x00000000750AF000-memory.dmp

Filesize
4KB

Download
memory/516-8-0x00000000052E0000-0x00000000052F2000-memory.dmp

Filesize
72KB

Download
memory/516-9-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/516-10-0x0000000006790000-0x0000000006850000-memory.dmp

Filesize
768KB

Download
memory/516-1-0x0000000000540000-0x0000000000638000-memory.dmp

Filesize
992KB

Download
memory/516-0-0x00000000750AE000-0x00000000750AF000-memory.dmp

Filesize
4KB

Download
memory/4836-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-85-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4836-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download