remcos | 3299af172e776e5df6405662ac37f436fa49d0a41a95f8cda3f24006d78743ed

Analysis

max time kernel
148s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 16:14

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General

Target

scan00093944.pdf.exe
Size

1.6MB
MD5

1a2e594a704d93994d0f361d24230eda
SHA1

d7ce5cc39741222c2739081dd7171de223897b11
SHA256

36336b168fdd5dcf5172b9f91137d58e8747c4c263b505f303255a91be62bafb
SHA512

68929288d281743071dcec104e26f154a1520b895937954373427f01ff70f838e4a7c377b3dcfdbe94febf14560578d218339c06797a0cffce4e3ababfd9543a
SSDEEP

24576:ffmMv6Ckr7Mny5QL13DTHOVaB7LekaKaLaU9fEkC2iSKyf+l:f3v+7/5QLZTuy7Le+aT95myW

Score

10^/10

remcos remotehost1 discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost1

tochisglobal.ddnsking.com:6426

tochisglobal.ddns.net:6426

backups1122.duckdns.org:6426

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
-KS7514
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3052 set thread context of 2804	3052	scan00093944.pdf.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	scan00093944.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3052	scan00093944.pdf.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2804	3052	scan00093944.pdf.exe	31
PID 3052 wrote to memory of 2804	3052	scan00093944.pdf.exe	31
PID 3052 wrote to memory of 2804	3052	scan00093944.pdf.exe	31
PID 3052 wrote to memory of 2804	3052	scan00093944.pdf.exe	31
PID 3052 wrote to memory of 2804	3052	scan00093944.pdf.exe	31

C:\Users\Admin\AppData\Local\Temp\scan00093944.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\scan00093944.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\scan00093944.pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2804-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-3-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-6-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-5-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2804-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3052-2-0x0000000003EE0000-0x00000000042E0000-memory.dmp

Filesize
4.0MB

Download