remcos | 0fb925b5db5af723fc79d103158873db49ec4bfb26557b1e1745e91893d93fc3

General

Target

2e5f8f122f26f109ceaeef0d703c2d21.exe
Size

5.8MB
MD5

2e5f8f122f26f109ceaeef0d703c2d21
SHA1

f57c12a86d4270f0f42aabedbd59313cd927e33e
SHA256

0fb925b5db5af723fc79d103158873db49ec4bfb26557b1e1745e91893d93fc3
SHA512

78034facde86fd4d54674479504310995ababcb8555d0ee2d0ff00e7e051eef88e4897d200c0ff38780e463516eed4d7ee2bdab077ce6b89b58061611ead0927
SSDEEP

98304:5tLutWh4NYxtJpkxhGRvPLOqjajvD333yuFm6ko:uOxtJahKdjaKuFXx

Score

10^/10

remcos 25��septiembre��2024 discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

25��Septiembre��2024

C2

098urni4389udn3u4imf8rufue.con-ip.com:5023

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-469YID
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JudgeUpdater = "C:\\Users\\Admin\\Music\\JudgeUpdater\\EyesJudger.exe"	2e5f8f122f26f109ceaeef0d703c2d21.exe

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	2e5f8f122f26f109ceaeef0d703c2d21.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e5f8f122f26f109ceaeef0d703c2d21.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2880	2e5f8f122f26f109ceaeef0d703c2d21.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3524 wrote to memory of 2880	3524	2e5f8f122f26f109ceaeef0d703c2d21.exe	86
PID 3524 wrote to memory of 2880	3524	2e5f8f122f26f109ceaeef0d703c2d21.exe	86
PID 3524 wrote to memory of 2880	3524	2e5f8f122f26f109ceaeef0d703c2d21.exe	86
PID 3524 wrote to memory of 2880	3524	2e5f8f122f26f109ceaeef0d703c2d21.exe	86
PID 3524 wrote to memory of 2880	3524	2e5f8f122f26f109ceaeef0d703c2d21.exe	86

C:\Users\Admin\AppData\Local\Temp\2e5f8f122f26f109ceaeef0d703c2d21.exe
"C:\Users\Admin\AppData\Local\Temp\2e5f8f122f26f109ceaeef0d703c2d21.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Users\Admin\AppData\Local\Temp\2e5f8f122f26f109ceaeef0d703c2d21.exe
  "C:\Users\Admin\AppData\Local\Temp\2e5f8f122f26f109ceaeef0d703c2d21.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
b8acb07e04d6d5ee729e7619e95378e6

SHA1
d587518e22f56774d309a086bba2bcd8ca241554

SHA256
5c0ac41d382651ddc897eafe5ee2a9388f157d05c0356ce55f1d6bfeeafe4603

SHA512
86a636ed901a2a5aeac5fe0ee058a4291baedd9d0164f1571242367132ce307ff8b96dfece5a367fbe58826846b562c712446a2d631149550ce164a53364462e

Download Submit
memory/2880-13-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-58-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-16-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-50-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-10-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-12-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-45-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-44-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-52-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-57-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-17-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-7-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-39-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-38-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-18-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/2880-32-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-25-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-26-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/2880-31-0x00000000009E0000-0x0000000000A62000-memory.dmp

Filesize
520KB

Download
memory/3524-11-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-20-0x00000000005AD000-0x00000000005C5000-memory.dmp

Filesize
96KB

Download
memory/3524-3-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-4-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-8-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-0-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-6-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-5-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-1-0x0000000000400000-0x00000000009DA000-memory.dmp

Filesize
5.9MB

Download
memory/3524-2-0x00000000005AD000-0x00000000005C5000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads