remcos | 74ee5102bd8e4e93ea1eb069e049d2b0e7f1b6678dabe4c6f25e5975b760d03a

General

Target

Order Confirmation 10184.exe
Size

3.5MB
MD5

df2ace5c6db82428462e74d47d0465bf
SHA1

ad0284fecf66d6b740fde18c1929aeabd8f3c83d
SHA256

eda27c1bb7dbc080b1db6b379e99b435a4bece82d82ac57265fc46e4998ee387
SHA512

153035ccb7b7bcf94367717cc4fbe70947bf4de5de33b5fea673e24348e2e0f0f9381b73c47af1f860c12e00b49cb7f058f053415b08e716fd3b087a4b5a01fe
SSDEEP

24576:ULBjHOz3eHyTm8o0NQVwDigJIeOjBKw31I:UNLOz3eHyTm8bOVHuOjBKw31I

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:52121

officerem.duckdns.org:52121

Attributes

audio_folder
MicRecords
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
Rmc-6GPUH1
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3272 set thread context of 744	3272	Order Confirmation 10184.exe	85

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	ngen.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 744	3272	Order Confirmation 10184.exe	85
PID 3272 wrote to memory of 1908	3272	Order Confirmation 10184.exe	86
PID 3272 wrote to memory of 1908	3272	Order Confirmation 10184.exe	86
PID 3272 wrote to memory of 1908	3272	Order Confirmation 10184.exe	86

C:\Users\Admin\AppData\Local\Temp\Order Confirmation 10184.exe
"C:\Users\Admin\AppData\Local\Temp\Order Confirmation 10184.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
  2⤵
  PID:1908

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

Replay Monitor

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Downloads

memory/744-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-4-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-5-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/744-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3272-1-0x0000028C24680000-0x0000028C24688000-memory.dmp

Filesize
32KB

Download
memory/3272-0-0x00007FFF4AD73000-0x00007FFF4AD75000-memory.dmp

Filesize
8KB

Download
memory/3272-10-0x00007FFF4AD70000-0x00007FFF4B831000-memory.dmp

Filesize
10.8MB

Download
memory/3272-2-0x00007FFF4AD70000-0x00007FFF4B831000-memory.dmp

Filesize
10.8MB

Download
memory/3272-3-0x0000028C3EBF0000-0x0000028C3ECBC000-memory.dmp

Filesize
816KB

Download

Analysis

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