remcos | a1c3e17317a6578fee600bc9bbc3a7fe621d65839b8ca372989483734aeed3b6

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 00:49

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General

Target

Iwfifvwzd4.exe
Size

395KB
MD5

c942e578f5449ab92e720f47f2cbbb8f
SHA1

460cdca7556f9ee5dc5492096b21c997a3d1a819
SHA256

84f6968bec673a61d9408dd7a9dc1bf38be61c947078887d27d09210792f5eee
SHA512

262f5cd85d2e1ed6266937e9fd64207f3266a6dc05c75599cc19f845fed7aa56e5314204955649dea0798b49571093394d296eca5bfe002cdd2451e8213d6991
SSDEEP

6144:h4MUo9SMQq3NB3cgT0YAOjVmiV13wYi/4TG:nS+3b4EmiTjigT

Score

10^/10

remcos lime discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

Lime

latua.nsupdate.info:7722

fanta.nsupdate.info:7722

coke.nsupdate.info:7722

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
renovatedds-E7QW6H
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
take_screenshot_title
wikipedia;solitaire;

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 3376 set thread context of 2024	3376	Iwfifvwzd4.exe	83

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	Iwfifvwzd4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3376	Iwfifvwzd4.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2024	Iwfifvwzd4.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83
PID 3376 wrote to memory of 2024	3376	Iwfifvwzd4.exe	83

C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe
"C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe
  "C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2024

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:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
dc823592eacca133ddd6cf6a963df0b9

SHA1
b3fc517b5e8e6646a70132e37396a89dc33a9745

SHA256
d9fc29c14082f3fbcca0879eab3cce2d11beb33fbcf1bbaf88394ca2df4d2b00

SHA512
7261b40bffef763155c6ecf6b6bd05b913b0ef6b3f579ab33e26ac79e2a0b7408d1c3d15524b51be6954d7f177fff9e170c9c04640e7228070aa909fb423c5bd

Download Submit
memory/2024-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2024-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2024-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2024-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2024-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3376-4-0x0000000004BA0000-0x0000000004BAA000-memory.dmp

Filesize
40KB

Download
memory/3376-7-0x0000000005EC0000-0x0000000005EF2000-memory.dmp

Filesize
200KB

Download
memory/3376-8-0x0000000005EF0000-0x0000000005F44000-memory.dmp

Filesize
336KB

Download
memory/3376-9-0x0000000005F80000-0x0000000005F9E000-memory.dmp

Filesize
120KB

Download
memory/3376-11-0x0000000005FF0000-0x000000000600C000-memory.dmp

Filesize
112KB

Download
memory/3376-6-0x0000000005E30000-0x0000000005EA6000-memory.dmp

Filesize
472KB

Download
memory/3376-5-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/3376-0-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/3376-3-0x0000000004BC0000-0x0000000004C52000-memory.dmp

Filesize
584KB

Download
memory/3376-21-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/3376-2-0x0000000005330000-0x00000000058D4000-memory.dmp

Filesize
5.6MB

Download
memory/3376-1-0x0000000000140000-0x00000000001A8000-memory.dmp

Filesize
416KB

Download