remcos | d80af7862cef512d90e2b4605667de680679c468b70986e2cf0d15f85e97f44d

General

Target

fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe
Size

8.2MB
MD5

aa6e85858efca5028eadcf3a317fbbdc
SHA1

3ef8bf2c75b73030105e2af6b7484f6cd6470cc7
SHA256

fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0
SHA512

b8dcd361ad90b5fad9813b53f0ae8a2a9a2643f4af3ae13e2234cb8dbcb2453657c17a40c9cd1acb130e040d00b48ced01480decc1a7895bb84d9e9694cbfc23
SSDEEP

196608:2NfOH6v/+gNpzr0L8bFYInjxdRRsGV5XbEBkJ58u1y5BgpljlHy:2k6LjzoLA+adRRssXgBg5p1QBSxlS

Score

10^/10

remcos giga10 discovery rat rezer0

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

giga10

C2

CEDSXoissLv2NiM.club:5762

PgqduOYXVZeNNam.xyz:5762

USd7O88wEMlUtX5.xyz:5762

pMfiryhhkiN98Px.xyz:5762

Se2Qwz60L2OxZNM.xyz:5762

GWtY0fiG58DCq6F.xyz:5762

maui16azsncpo97.info:5762

mj99puoba6c3gun.info:5762

tu90to3b4q4uqze.info:5762

cwt1u0vv8ic357ov.info:5762

agaoajz1hrvevre.info:5762

poykoqnl7jkj632.info:5762

cbiq1neygyp1wno.info:5762

BCBNcQ393Z3HPLQ.club:5762

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
Remcos-UQ8E24
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

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

resource	yara_rule
behavioral2/memory/452-10-0x0000000007D10000-0x0000000007D3E000-memory.dmp	rezer0

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 452 set thread context of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84

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 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4780	schtasks.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 4780	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	82
PID 452 wrote to memory of 4780	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	82
PID 452 wrote to memory of 4780	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	82
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84
PID 452 wrote to memory of 2572	452	fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe	84

C:\Users\Admin\AppData\Local\Temp\fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe
"C:\Users\Admin\AppData\Local\Temp\fa958470655b38f6efcfcc94d9d9c41153a840e46593a092ebf158ebc02059a0.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:452
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YrztqVJUmKh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDCC3.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDCC3.tmp

Filesize
1KB

MD5
14906bf095934fdda7b8f996a6d2650a

SHA1
b9cf442f76930225f2441b0b5a832978dfeebf23

SHA256
80828b089f992a113e52d5e453783fdbf13a01ba24584c96f848cd7ff96493b9

SHA512
794af45b771aae05ddb1f7b38ba8c83a1962ed7dc761403699d76046f7114bcc7939ce05a0a8c532db0e972b5e0e60ffdaaa87b2f518f9c59665a19996fc7474

Download Submit
memory/452-10-0x0000000007D10000-0x0000000007D3E000-memory.dmp

Filesize
184KB

Download
memory/452-1-0x0000000000FD0000-0x0000000001800000-memory.dmp

Filesize
8.2MB

Download
memory/452-3-0x0000000006210000-0x00000000062A2000-memory.dmp

Filesize
584KB

Download
memory/452-4-0x00000000062B0000-0x0000000006306000-memory.dmp

Filesize
344KB

Download
memory/452-5-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/452-6-0x0000000006410000-0x000000000641A000-memory.dmp

Filesize
40KB

Download
memory/452-7-0x00000000078B0000-0x00000000078C0000-memory.dmp

Filesize
64KB

Download
memory/452-11-0x0000000007DF0000-0x0000000007E8C000-memory.dmp

Filesize
624KB

Download
memory/452-9-0x0000000007C80000-0x0000000007C92000-memory.dmp

Filesize
72KB

Download
memory/452-25-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/452-8-0x00000000078C0000-0x0000000007C14000-memory.dmp

Filesize
3.3MB

Download
memory/452-12-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/452-13-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/452-2-0x0000000006720000-0x0000000006CC4000-memory.dmp

Filesize
5.6MB

Download
memory/452-0-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/2572-22-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2572-24-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2572-19-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2572-23-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2572-26-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads