remcos | c44506fe6e1ede5a104008755abf5b6ace51f1a84ad656a2dccc7f2c39c0eca2

Analysis

max time kernel
149s
max time network
126s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
20/07/2024, 14:05

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

Setup.exe
Size

2.0MB
MD5

371c165e3e3c1a000051b78d7b0e7e79
SHA1

2a2ecbbd4840c486b3507a18307369336ec5a1aa
SHA256

5ae3838d77c2102766538f783d0a4b4205e7d2cdba4e0ad2ab332dc8ab32fea9
SHA512

4e6bd3f85c71a8ff0db1e92675295d5bbd0ee8cf24d4df4150a922e9c25fa1f7116263ac4e55c9a9420416fd0388db593c1fe43d22d0a8d25caa20eeb13f5080
SSDEEP

24576:fsLSdP5XOFS5DbCVVtBF8SIIa0awy+qW5M8hbGY7WVaQX/VjjFD7YpmTfWD3B7jn:ELmVOFUK1JIIa0awN5d7WVaQX1T+z9D

Score

10^/10

remcos fudstub rat

Malware Config

Extracted

Family

remcos

Botnet

fudstub

213.5.130.58:443

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
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
Crashreport
keylog_path
%AppData%
mouse_option
false
mutex
Rmc-0H4R64
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
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 3068 set thread context of 2296	3068	Setup.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3068	Setup.exe
3068	Setup.exe
2296	cmd.exe
2296	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3068	Setup.exe
2296	cmd.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2296	3068	Setup.exe	28
PID 3068 wrote to memory of 2296	3068	Setup.exe	28
PID 3068 wrote to memory of 2296	3068	Setup.exe	28
PID 3068 wrote to memory of 2296	3068	Setup.exe	28
PID 3068 wrote to memory of 2296	3068	Setup.exe	28
PID 2296 wrote to memory of 2884	2296	cmd.exe	32
PID 2296 wrote to memory of 2884	2296	cmd.exe	32
PID 2296 wrote to memory of 2884	2296	cmd.exe	32
PID 2296 wrote to memory of 2884	2296	cmd.exe	32
PID 2296 wrote to memory of 2884	2296	cmd.exe	32
PID 2296 wrote to memory of 2884	2296	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2296
- - C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    3⤵
    PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\a84a767c

Filesize
1.2MB

MD5
fcdb658a149689bf688cf20ca01fb790

SHA1
e95e4bdd0a39cf23cdeb34c668f9f1dd956f1a7b

SHA256
39974ac793e4a994841ae190a555de60969e9d005a3adeabfdc9b932adf77974

SHA512
59dd7e67bfd17d27adb82c531e9cefd8da73f68fb351696b6ad74c3a3c439eeea42f4d5c4e4ee50f1890073b508341682b188e5e5ecb37b137c90826ebd1c641

Download Submit
memory/2296-25-0x00000000778D0000-0x0000000077A79000-memory.dmp

Filesize
1.7MB

Download
memory/2296-74-0x0000000074941000-0x000000007494F000-memory.dmp

Filesize
56KB

Download
memory/2296-73-0x0000000074940000-0x0000000074AB4000-memory.dmp

Filesize
1.5MB

Download
memory/2296-71-0x0000000074940000-0x0000000074AB4000-memory.dmp

Filesize
1.5MB

Download
memory/2296-70-0x0000000074940000-0x0000000074AB4000-memory.dmp

Filesize
1.5MB

Download
memory/2296-23-0x0000000074941000-0x000000007494F000-memory.dmp

Filesize
56KB

Download
memory/2884-81-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-83-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-90-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-89-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-88-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-87-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-86-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-85-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-84-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-82-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-79-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2884-75-0x00000000778D0000-0x0000000077A79000-memory.dmp

Filesize
1.7MB

Download
memory/2884-76-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3068-1-0x00000000778D0000-0x0000000077A79000-memory.dmp

Filesize
1.7MB

Download
memory/3068-0-0x0000000074940000-0x0000000074AB4000-memory.dmp

Filesize
1.5MB

Download
memory/3068-12-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/3068-21-0x0000000061E00000-0x0000000061ECA000-memory.dmp

Filesize
808KB

Download
memory/3068-13-0x0000000074940000-0x0000000074AB4000-memory.dmp

Filesize
1.5MB

Download
memory/3068-17-0x0000000059800000-0x000000005986E000-memory.dmp

Filesize
440KB

Download
memory/3068-22-0x0000000050310000-0x0000000050349000-memory.dmp

Filesize
228KB

Download
memory/3068-16-0x0000000050000000-0x0000000050116000-memory.dmp

Filesize
1.1MB

Download
memory/3068-18-0x0000000057000000-0x000000005703F000-memory.dmp

Filesize
252KB

Download
memory/3068-19-0x0000000050120000-0x000000005030D000-memory.dmp

Filesize
1.9MB

Download
memory/3068-20-0x0000000057800000-0x0000000057812000-memory.dmp

Filesize
72KB

Download