MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


RemcosRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
SHA3-384 hash: 605fd418415653a7e468cbc3fb95362734fc5095f508a4599154bcb3b53bf8188236e9657aa233c11e76e20f1ba7cd54
SHA1 hash: c47ede40c72c1451337fe9ae6a67ec385813522b
MD5 hash: c640fc3549cca10fe0cb0eb046d83521
humanhash: whiskey-mockingbird-skylark-floor
File name:PO CBV87654468,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:638'640 bytes
First seen:2020-10-28 06:51:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:DsfFALfts57lgXPB0TyvqKd4ZpIUMpYjOKS8Uy1C:zb
TLSH BBD4983D6E8826A36177E676A0F50587FEE8658673781C4B01C33B486D5AF023E9734E
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: s7.itlinkonline.com
Sending IP: 95.217.94.198
From: Nelly Juarez Reyes <njuarez@ridgid.com.mx>
Subject: RE: Order PO CBV87654468
Attachment: PO CBV87654468,pdf.iso (contains "PO CBV87654468,pdf.exe")

RemcosRAT C2:
insidelife1.ddns.net:8811 (216.38.7.231)

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/80287/
Detection(s):
PUA.Win.Trojan.Generic-6629274-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/514553
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 306392 Sample: PO CBV87654468,pdf.exe Startdate: 28/10/2020 Architecture: WINDOWS Score: 100 26 insidelife1.ddns.net 2->26 32 Multi AV Scanner detection for domain / URL 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for dropped file 2->36 38 15 other signatures 2->38 7 PO CBV87654468,pdf.exe 1 4 2->7         started        11 vlc.exe 1 2->11         started        13 vlc.exe 2->13         started        signatures3 process4 file5 24 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 7->24 dropped 40 Injects a PE file into a foreign processes 7->40 15 PO CBV87654468,pdf.exe 2 7->15         started        18 vlc.exe 11->18         started        20 vlc.exe 11->20         started        22 vlc.exe 13->22         started        signatures6 process7 dnsIp8 28 insidelife1.ddns.net 216.38.7.231, 49757, 49758, 49759 ASN-GIGENETUS United States 15->28 30 192.168.2.1 unknown unknown 15->30
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 18:15:42 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4jwjlmzlmtr7pnoxfvjl4l6xznjmpiwb34s7km32pa5bonpya2wq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201028-26vgn9y896/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
insidelife1.ddns.net:8811
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

iso a6d8ed9921a12981440e39514a980c2e7a255b4aa284692d8fdc5aa967921857

RemcosRAT

Executable exe e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad

(this sample)

  
Dropped by
MD5 d525cd7939631f2a6314e9db20553b39
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a6d8ed9921a12981440e39514a980c2e7a255b4aa284692d8fdc5aa967921857
Cape
Cape
https://www.capesandbox.com/analysis/80287/

Comments