remcos | 11eb819cbd3fdf4c4058d142846e0068f19ac472524cef23565db6eb19422dbe

Analysis

max time kernel
148s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 11:49

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General

Target

lib.exe
Size

1.2MB
MD5

b2aa20bc49612dad305b97c79abc54ce
SHA1

b010ca5464ca9900348b5f1f5a07165595cee3e3
SHA256

11eb819cbd3fdf4c4058d142846e0068f19ac472524cef23565db6eb19422dbe
SHA512

de2674f5a350cd0f542ae586169ea0b57433be697fc30b58185422f46685974f25843208244f22813f032d178e1a191d74f5af2374845cb305cdcd012abef70b
SSDEEP

24576:yoZAAchGnifgJ+mlr7Q/5h/731IMWj6IhHD5EzLSMkWwz16J:PSAiWlreqrK2dx

Score

10^/10

remcos lamp7 discovery rat

Malware Config

Extracted

Family

remcos

Version

2.5.1 Pro

Botnet

Lamp7

37.252.4.208:9008

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
true
keylog_file
data.bin
keylog_flag
false
keylog_folder
Radio
keylog_path
%Temp%
mouse_option
false
mutex
1252cbf49-88cd-4b59-a7eb-fc6c523fde-84YHI8
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

Blocklisted process makes network request 5 IoCs

flow	pid	Process
21	2752	cmd.exe
23	2752	cmd.exe
24	2752	cmd.exe
25	2752	cmd.exe
26	2752	cmd.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\RealtekLan.job	cmd.exe

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	lib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2540	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2532	lib.exe
2540	ipconfig.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2540	ipconfig.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2752	cmd.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2532 wrote to memory of 2540	2532	lib.exe	31
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33
PID 2540 wrote to memory of 2752	2540	ipconfig.exe	33

C:\Users\Admin\AppData\Local\Temp\lib.exe
"C:\Users\Admin\AppData\Local\Temp\lib.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\system32\ipconfig.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe"
    3⤵
    - Blocklisted process makes network request
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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:\Users\Admin\AppData\Local\Temp\Radio\data.bin

Filesize
74B

MD5
d1ecf2c4163892213bc3bea769781224

SHA1
b102d440f9103c1f552371be5276403485020b35

SHA256
a4f64b9ee19027c80edccd23767976d0754fe3e519d45ffed80e1750f3c781f2

SHA512
dfe341d7f053d4be9d79535dea66a26a1c8b7577492c736147831ddbeadd2b7bab1e82ae0e0f3a7c28eef00611f46e212f43d2c324663fea395e6a64365fac97

Download Submit
memory/2532-1-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/2532-4-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/2532-3-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/2532-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2540-29-0x0000000004160000-0x0000000004195000-memory.dmp

Filesize
212KB

Download
memory/2540-2-0x0000000000090000-0x0000000000092000-memory.dmp

Filesize
8KB

Download
memory/2540-23-0x00000000006C0000-0x00000000006C8000-memory.dmp

Filesize
32KB

Download
memory/2540-24-0x0000000004160000-0x0000000004195000-memory.dmp

Filesize
212KB

Download
memory/2752-27-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2752-28-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/2752-33-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2752-37-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2752-34-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2752-39-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2752-26-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download