remcos | e3ae16bb86c551e285199b4936337c98c9cf0267e636f51a69bae10a5135475e

General

Target

06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe
Size

981KB
MD5

5609198accfb2ccedb39e7755ed6a36c
SHA1

2bc0ee0e47c40a298038863338c4c07d7029d695
SHA256

06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f
SHA512

f49ad0d40d40f9073a90cabd73065c4d2ab9de0f340dd109196161ad8bcbd2f73917c5232ec752241231df6ce069e5a0503c844f522a3e7c49daa3ed66a290d3
SSDEEP

24576:IAZCJVAeo/UMV0w7KpWXPL8YKSdtJ/JVw6:mPOd8WIYKSdt5

Score

10^/10

remcos host discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

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 4396 set thread context of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102

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	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1860	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102
PID 4396 wrote to memory of 1860	4396	06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe	102

C:\Users\Admin\AppData\Local\Temp\06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe
"C:\Users\Admin\AppData\Local\Temp\06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Users\Admin\AppData\Local\Temp\06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe
  "C:\Users\Admin\AppData\Local\Temp\06d30761437ffb30ac9ac077bb3761b5e4c077f3b74f8ed3b7372e104dccf83f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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:\ProgramData\pdf\logs.dat

Filesize
144B

MD5
1f0db0cdcfbb5e3863c0fa77eed08e39

SHA1
1404b01405bf59c39a46d01f02ec56673a97dd22

SHA256
0085860c816a2051c908b3efffa167b72af27d1865450de978a3b6b1405134c2

SHA512
45913a983d44b1a8fe5449b7c356a184991f00ab0a611e85af1bb031f206dc0ed78c0ebbb344dc3590fe3c4d09da40c55a74c2733f3bd91c618fbd8323f44d7e

Download Submit
memory/1860-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1860-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4396-20-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/4396-1-0x0000000000EA0000-0x0000000000F9C000-memory.dmp

Filesize
1008KB

Download
memory/4396-3-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/4396-10-0x0000000006C30000-0x0000000006CF0000-memory.dmp

Filesize
768KB

Download
memory/4396-2-0x0000000006030000-0x00000000065D4000-memory.dmp

Filesize
5.6MB

Download
memory/4396-0-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

Filesize
4KB

Download
memory/4396-9-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/4396-8-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

Filesize
4KB

Download
memory/4396-7-0x0000000006020000-0x0000000006032000-memory.dmp

Filesize
72KB

Download
memory/4396-6-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/4396-5-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/4396-4-0x0000000005B80000-0x0000000005C1C000-memory.dmp

Filesize
624KB

Download

Analysis

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