remcos | c44506fe6e1ede5a104008755abf5b6ace51f1a84ad656a2dccc7f2c39c0eca2

Resubmissions

19-07-2024 19:18

240719-x1c57azane 10

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
19-07-2024 19:18

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

Processes:

Setup.exe

description	pid	Process	procid_target
PID 2312 set thread context of 616	2312	Setup.exe	30

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Setup.execmd.exe

pid	Process
2312	Setup.exe
2312	Setup.exe
616	cmd.exe
616	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Setup.execmd.exe

pid	Process
2312	Setup.exe
616	cmd.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Setup.execmd.exe

description	pid	Process	procid_target
PID 2312 wrote to memory of 616	2312	Setup.exe	30
PID 2312 wrote to memory of 616	2312	Setup.exe	30
PID 2312 wrote to memory of 616	2312	Setup.exe	30
PID 2312 wrote to memory of 616	2312	Setup.exe	30
PID 2312 wrote to memory of 616	2312	Setup.exe	30
PID 616 wrote to memory of 1592	616	cmd.exe	32
PID 616 wrote to memory of 1592	616	cmd.exe	32
PID 616 wrote to memory of 1592	616	cmd.exe	32
PID 616 wrote to memory of 1592	616	cmd.exe	32
PID 616 wrote to memory of 1592	616	cmd.exe	32
PID 616 wrote to memory of 1592	616	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:2312
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:616
- - C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    3⤵
    PID:1592

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\ba3c5cc

Filesize
1.2MB

MD5
ee89543e1bae0212c0db3050557fdf5b

SHA1
fbf03c20f62f7890b2f0d2e1bd6f36da5f353ddc

SHA256
61aa62303003deeca437005836b2aadca774664ec499f1e57767f9a51cdc03c7

SHA512
0535c9ad517ba4814c072d59d2850e75b28b8257a31738d5749d19b77b60424be38cfd72fd96261a3ed25461e383d530046ef8f4f241ceb810d15f8b987199e5

Download Submit
memory/616-74-0x00000000742F0000-0x0000000074464000-memory.dmp

Filesize
1.5MB

Download
memory/616-72-0x00000000742F0000-0x0000000074464000-memory.dmp

Filesize
1.5MB

Download
memory/616-71-0x00000000742F0000-0x0000000074464000-memory.dmp

Filesize
1.5MB

Download
memory/616-26-0x00000000771F0000-0x0000000077399000-memory.dmp

Filesize
1.7MB

Download
memory/616-24-0x00000000742F0000-0x0000000074464000-memory.dmp

Filesize
1.5MB

Download
memory/1592-84-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-85-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-91-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-90-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-89-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-88-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-87-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-86-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-83-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-82-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-80-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-76-0x00000000000C0000-0x0000000000143000-memory.dmp

Filesize
524KB

Download
memory/1592-75-0x00000000771F0000-0x0000000077399000-memory.dmp

Filesize
1.7MB

Download
memory/2312-22-0x0000000061E00000-0x0000000061ECA000-memory.dmp

Filesize
808KB

Download
memory/2312-12-0x0000000074302000-0x0000000074304000-memory.dmp

Filesize
8KB

Download
memory/2312-13-0x00000000742F0000-0x0000000074464000-memory.dmp

Filesize
1.5MB

Download
memory/2312-14-0x00000000742F0000-0x0000000074464000-memory.dmp

Filesize
1.5MB

Download
memory/2312-16-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/2312-0-0x00000000742F0000-0x0000000074464000-memory.dmp

Filesize
1.5MB

Download
memory/2312-1-0x00000000771F0000-0x0000000077399000-memory.dmp

Filesize
1.7MB

Download
memory/2312-17-0x0000000050000000-0x0000000050116000-memory.dmp

Filesize
1.1MB

Download
memory/2312-18-0x0000000059800000-0x000000005986E000-memory.dmp

Filesize
440KB

Download
memory/2312-19-0x0000000057000000-0x000000005703F000-memory.dmp

Filesize
252KB

Download
memory/2312-20-0x0000000050120000-0x000000005030D000-memory.dmp

Filesize
1.9MB

Download
memory/2312-21-0x0000000057800000-0x0000000057812000-memory.dmp

Filesize
72KB

Download
memory/2312-23-0x0000000050310000-0x0000000050349000-memory.dmp

Filesize
228KB

Download