MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c1ce706aa7b96510a66e677037aa60b52ad2bbe1b02c2dc708e338842fe7e4a. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments

SHA256 hash: 3c1ce706aa7b96510a66e677037aa60b52ad2bbe1b02c2dc708e338842fe7e4a
SHA3-384 hash: 67ae6cf65c8407d13bf0a9a62925453f8f36808cbbb5e21de87ffe35cde0e03773c1ec7628ddc412deffc3fb58950574
SHA1 hash: 473ba564d50551f441f2886ce8e7596a3b2c257b
MD5 hash: 6aa1dc2cf3bd3bf171dad674cdbb1fda
humanhash: sweet-cold-july-sodium
File name:20NS10-A-R 20-9-7,pdf.exe
Download: download sample
Signature RemcosRAT
File size:700'592 bytes
First seen:2020-10-21 13:06:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 3072:oeJNLAamm0mn6TEVS3ZdtbJzh0XEjZcWrOXV4XP9VGvLsLLQXAd5aIt+aOsSy14E:oK5ABm0mI04ZdJJV4sYGXWg
Threatray 919 similar samples on MalwareBazaar
TLSH 2BE41A7C9EC42977E5BA9276C9F559DBBA027D1371216C0E909B73420A73B933DC280E
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: jax4mhob25.registeredsite.com
Sending IP: 64.69.218.113
From: George Tzivelopoulos <e-Texelco1@texelco.gr>
Subject: PO 14704 - MEL - 20' TC Reefer / Sailing Schedule
Attachment: 20NS10-A-R 20-9-7.r00 (contains "20NS10-A-R 20-9-7,pdf.exe")

RemcosRAT C2:
incidencias6645.ddns.net

Intelligence


File Origin
# of uploads :
1
# of downloads :
58
Origin country :
n/a
Vendor Threat Intelligence
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
Setting a global event handler for the keyboard
Connection attempt to an infection source
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 301983 Sample: 20NS10-A-R 20-9-7,pdf.exe Startdate: 21/10/2020 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for dropped file 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 15 other signatures 2->46 6 20NS10-A-R 20-9-7,pdf.exe 1 4 2->6         started        10 vlc.exe 1 2->10         started        12 vlc.exe 2->12         started        process3 file4 26 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 6->26 dropped 28 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 6->28 dropped 30 C:\Users\...\20NS10-A-R 20-9-7,pdf.exe.log, ASCII 6->30 dropped 48 Injects a PE file into a foreign processes 6->48 14 20NS10-A-R 20-9-7,pdf.exe 2 3 6->14         started        32 C:\Users\user\AppData\Local\...\vlc.exe.log, ASCII 10->32 dropped 18 vlc.exe 10->18         started        20 vlc.exe 10->20         started        22 vlc.exe 10->22         started        24 vlc.exe 12->24         started        signatures5 process6 dnsIp7 36 incidencias6645.ddns.net 185.244.30.10, 49756, 8638 DAVID_CRAIGGG Netherlands 14->36 38 192.168.2.1 unknown unknown 14->38 34 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 14->34 dropped file8
Threat name:
ByteCode-MSIL.Spyware.Stelega
Status:
Malicious
First seen:
2020-10-21 12:26:50 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
persistence rat family:remcos
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
incidencias6645.ddns.net:8638
Unpacked files
SH256 hash:
3c1ce706aa7b96510a66e677037aa60b52ad2bbe1b02c2dc708e338842fe7e4a
MD5 hash:
6aa1dc2cf3bd3bf171dad674cdbb1fda
SHA1 hash:
473ba564d50551f441f2886ce8e7596a3b2c257b
SH256 hash:
bb7b222fb006fd5d04c59e17f852ccf4011850bb8ea20ca220246364f603bb25
MD5 hash:
246ead135ca0ae1c96bf0c1b29dc25cb
SHA1 hash:
2586388f71ff9bed1cbed075c31b9bf565685f44
SH256 hash:
5fda7ee9bc5175075ee399ebf129d02f46eee3955ec06d359409e913ba7612d7
MD5 hash:
a10645a9d67ce46819443318e9b3063c
SHA1 hash:
a1ba5cfd0eb7fda77e513e3cc5c647baba61e29e
SH256 hash:
5da1f8d5377b40902038f255e5734fbf082ceae386c7b5617261823e284dc4ef
MD5 hash:
df24417dde6ef25d1d34a34ee3a7c298
SHA1 hash:
f5c4140629cd69512c941adf2c5216763e468c01
Detections:
win_remcos_g0 win_remcos_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:win_remcos_auto
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

Executable exe 3c1ce706aa7b96510a66e677037aa60b52ad2bbe1b02c2dc708e338842fe7e4a

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments