remcos | e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18/10/2024, 02:58

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General

Target

e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe
Size

1.6MB
MD5

3827880ffe45d597900398f3b19f8b1e
SHA1

9382b462efa1c745dba267d3a80d6389705ad3f6
SHA256

e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657
SHA512

7d10ba028db070e46c6ff71f371a3c0a9c86e0805cca32ddda3f71dbba7c1f8d76f5b9408f8c31c8bb1c1cbab441875761732cb85c3fef4f7463f51b68675cad
SSDEEP

24576:ffmMv6Ckr7Mny5QLjHseM8D+KrBk7YykokV313hvRtTVrJUic:f3v+7/5QLYBK1kEy5c19RLrJA

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

www.projectusf.com:2404

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
gfh
mouse_option
false
mutex
Rmc-J91LMC
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Quote.vbs	Quote.exe

Executes dropped EXE 1 IoCs

pid	Process
2992	Quote.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4544-2-0x00000000045E0000-0x00000000049E0000-memory.dmp	autoit_exe
behavioral2/files/0x0008000000023c7c-5.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2992 set thread context of 4860	2992	Quote.exe	88

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 3 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	e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quote.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2992	Quote.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4860	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 2992	4544	e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe	87
PID 4544 wrote to memory of 2992	4544	e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe	87
PID 4544 wrote to memory of 2992	4544	e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe	87
PID 2992 wrote to memory of 4860	2992	Quote.exe	88
PID 2992 wrote to memory of 4860	2992	Quote.exe	88
PID 2992 wrote to memory of 4860	2992	Quote.exe	88
PID 2992 wrote to memory of 4860	2992	Quote.exe	88

C:\Users\Admin\AppData\Local\Temp\e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe
"C:\Users\Admin\AppData\Local\Temp\e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Users\Admin\AppData\Local\done\Quote.exe
  "C:\Users\Admin\AppData\Local\Temp\e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2992
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4860

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

C:\ProgramData\gfh\logs.dat

Filesize
144B

MD5
f6236ec47b69808ed9c8e88096f029be

SHA1
a6a1bdc13b5d63b9b114bfeaef371693c922a286

SHA256
3b414b8af7788ca1714a3c94ab77e9151ca4331e682472327c4288c1e0494fa5

SHA512
db546327873f5dae4a3eb20c5a2a2e176ef971c8a08127fdd9b919f95e53ee057e4e29646fce5ab2a2817cbd996c5e17f079eec9a4c86ef4b3c25af9cf4d93b9

Download Submit
C:\Users\Admin\AppData\Local\done\Quote.exe

Filesize
1.6MB

MD5
3827880ffe45d597900398f3b19f8b1e

SHA1
9382b462efa1c745dba267d3a80d6389705ad3f6

SHA256
e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657

SHA512
7d10ba028db070e46c6ff71f371a3c0a9c86e0805cca32ddda3f71dbba7c1f8d76f5b9408f8c31c8bb1c1cbab441875761732cb85c3fef4f7463f51b68675cad

Download Submit
memory/2992-10-0x0000000004180000-0x0000000004580000-memory.dmp

Filesize
4.0MB

Download
memory/4544-2-0x00000000045E0000-0x00000000049E0000-memory.dmp

Filesize
4.0MB

Download
memory/4860-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4860-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download