MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d79a8f491c0112c3f26572350336fe7d22674f5550f37894643eba980ae5bd32. 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: 9


Intelligence 9 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d79a8f491c0112c3f26572350336fe7d22674f5550f37894643eba980ae5bd32
SHA3-384 hash: 6960a6e840e372f987358fcf11b32b92347d7d69c1a9536fda0aa4f87ccfb966204b3ccfc644019a6c39c9aa0eeb0c10
SHA1 hash: c8896408108d937aa7e51b75a69f7882c781bcd9
MD5 hash: 248b9f1f26b6a3270afd188ef293304b
humanhash: five-iowa-bacon-blue
File name:Attached file.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:966'144 bytes
First seen:2021-02-20 07:54:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 84671db4a18e3679141801e399e741d4 (2 x RemcosRAT)
ssdeep 12288:bqLRve0noZ5a7yI5+bIBM+XzdQu3ECoDaMycZ+3e:bU5ngpI5oXkgtDocSe
Threatray 1'620 similar samples on MalwareBazaar
TLSH F7257FF3990A4AE0F37B053DF48BE73414A7F8B3390956652E947B058A6AB58F430877
Reporter abuse_ch
Tags:DHL exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail.issuedelivery.online
Sending IP: 161.97.149.176
From: Dhl Customer Support <help@issuedelivery.online>
Subject: Order Delivery Failed
Attachment: Attachment.iso (contains "Attached file.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Detection:
DLAgent07
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118073/
Detection(s):
Win.Dropper.Fareit-9832696-0
Create hunting rule

PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Connection attempt
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Setting a global event handler for the keyboard
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/613204
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Found malware configuration
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
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 355618 Sample: Attached file.exe Startdate: 20/02/2021 Architecture: WINDOWS Score: 100 34 tprem4g.casacam.net 2->34 38 Multi AV Scanner detection for domain / URL 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 12 other signatures 2->44 7 Attached file.exe 1 18 2->7         started        12 Godlnest.exe 2->12         started        14 Godlnest.exe 2->14         started        signatures3 process4 dnsIp5 36 cdn.discordapp.com 162.159.129.233, 443, 49710 CLOUDFLARENETUS United States 7->36 26 C:\Users\Public\Librariesbehaviorgraphodlnest.exe, PE32 7->26 dropped 46 Writes to foreign memory regions 7->46 48 Allocates memory in foreign processes 7->48 50 Creates a thread in another existing process (thread injection) 7->50 16 ieinstal.exe 2 3 7->16         started        52 Multi AV Scanner detection for dropped file 12->52 54 Machine Learning detection for dropped file 12->54 56 Injects a PE file into a foreign processes 12->56 20 ieinstal.exe 12->20         started        22 ieinstal.exe 14->22         started        file6 signatures7 process8 dnsIp9 28 tprem.ddnsfree.com 185.206.225.51, 2404 M247GB United Kingdom 16->28 30 tprem009.hopto.org 185.244.30.113, 2404 DAVID_CRAIGGG Netherlands 16->30 32 3 other IPs or domains 16->32 24 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 16->24 dropped file10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d79a8f491c0112c3f26572350336fe7d22674f5550f37894643eba980ae5bd32/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2021-02-20 07:55:09 UTC
AV detection:
27 of 47 (57.45%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=26ni6si4aejmh4tfoi2qgnx6purgot2vkdzxrfdeh25jqcxfxuza._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
08c39e0ca34ceb7834c367901d68c40c0c5b7429f7636395e456415e1c5addc7
RemcosRAT
17c742f29afb5c4352f3fb0079fbb0b2d72da1e65cfc59695f9a7259088b4615
RemcosRAT
1d61d1e99f05f85dbe885fc183a1b5fe81c0d47350868484186705d491a6577a
RemcosRAT
3a16a07b5af879c69e9e1225c0f5c6226fe505eff39d7a2195b1f9876fa804bf
RemcosRAT
56fec820ce36b3b5f155dba31e5ba880078fc7bcc6420fc2fb4ca5af6ac5725b
RemcosRAT
64ec407029e6f62da7f2898dc4644c58f970546eb9679f5c540295debfa6006a
RemcosRAT
d1f06a9a99968fd2cc395b4e3d2f8d1aa515189ce3aae3bf67bf9808380a6316
RemcosRAT
de207ca43d42f8ec2066469bb68012d54652bd20369880c239aca6fb7f5ca0dd
RemcosRAT
e035c0475a5447371bbe31537fb8410273c51d86d16e47d631538f5ce5b0d87d
RemcosRAT
e65bff9943ab7ccc3713619a8d908f6caf5392c0c47defe3b66ca9009d2177ed
RemcosRAT
+ 1'610 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210220-q4fgbme56a/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
tprem.ddnsfree.com:2404
tprerem2.ddnsfree.com:2404
tprem009.hopto.org:2404
tprem4g.ddns.net:2404
tpremm.hopto.org:2404
tprem4g.casacam.net:2404
tprem8g.hopto.org:2404
Unpacked files
SH256 hash:
742d9dde82f369f53ebd096e97446b429793401ab681f63e6b24b87ebc1bbc06
MD5 hash:
6a9a262f0ad021baff8e22a6dd4a53ae
SHA1 hash:
160189d345c18854b631a20011103edd2fdd136f
Link:
https://www.unpac.me/results/769514e5-89e3-4a40-ae8a-d5b9b9a0f06a/
SH256 hash:
d79a8f491c0112c3f26572350336fe7d22674f5550f37894643eba980ae5bd32
MD5 hash:
248b9f1f26b6a3270afd188ef293304b
SHA1 hash:
c8896408108d937aa7e51b75a69f7882c781bcd9
Link:
https://www.unpac.me/results/769514e5-89e3-4a40-ae8a-d5b9b9a0f06a/
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
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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
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:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
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 b8786a48e0c3d21a761efc72b3817d6b636e934128311bfaa4f3cb04adc43555

RemcosRAT

Executable exe d79a8f491c0112c3f26572350336fe7d22674f5550f37894643eba980ae5bd32

(this sample)

  
Dropped by
MD5 153105c3513baee09b5a214df42813b6
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118073/
  
Dropped by
SHA256 b8786a48e0c3d21a761efc72b3817d6b636e934128311bfaa4f3cb04adc43555

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