MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5ea758baddc8ee59eae86bdf492b597aec1c861115519357d3697f91f610c73c. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5ea758baddc8ee59eae86bdf492b597aec1c861115519357d3697f91f610c73c
SHA3-384 hash: 2485307839517afb0bcb7196335d2f327c4ebd60a17d44b211d66f2f419a4f016e6dfd7a24d37777af56fd0024c76b22
SHA1 hash: c281c8ce2662cbe93c67c2d19fec858067dfa487
MD5 hash: e7c9bad8e2757e9c35fbc9c461dc9280
humanhash: river-winter-uniform-floor
File name:Payment-101920.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:450'560 bytes
First seen:2020-10-19 18:09:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:X+UpPN4sLpAADih/AZ+blT+zQM57j+Wuirq:XNpPNftAAI/XblT+zQMBj+WL
Threatray 1'084 similar samples on MalwareBazaar
TLSH 12A4E0602245AF68E43DB33B34A7507013F2A895C326DB2D7FE973FA1462F446661B1E
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: gmail.com
Sending IP: 37.49.225.237
From: Office <cdy3079@gmail.com>
Subject: Payment 10-19-2020
Attachment: Payment-101920.gz (contains "Payment-101920.exe")

RemcosRAT C2:
185.165.153.243:2021

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73054/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.424.10244.8660.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Forced shutdown of a system process
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/495852
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 300370 Sample: Payment-101920.exe Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for dropped file 2->36 38 Sigma detected: Scheduled temp file as task from temp location 2->38 40 12 other signatures 2->40 7 Payment-101920.exe 7 2->7         started        process3 file4 22 C:\Users\user\AppData\...behaviorgraphdcBrKTLNdN.exe, PE32 7->22 dropped 24 C:\Users\...behaviorgraphdcBrKTLNdN.exe:Zone.Identifier, ASCII 7->24 dropped 26 C:\Users\user\AppData\Local\...\tmp801D.tmp, XML 7->26 dropped 28 C:\Users\user\...\Payment-101920.exe.log, ASCII 7->28 dropped 42 Writes to foreign memory regions 7->42 44 Allocates memory in foreign processes 7->44 46 Injects a PE file into a foreign processes 7->46 11 vbc.exe 7->11         started        14 vbc.exe 2 3 7->14         started        18 schtasks.exe 1 7->18         started        signatures5 process6 dnsIp7 48 Contains functionality to steal Chrome passwords or cookies 11->48 50 Contains functionality to capture and log keystrokes 11->50 52 Contains functionality to inject code into remote processes 11->52 54 Contains functionality to steal Firefox passwords or cookies 11->54 32 185.165.153.243, 2021, 49733, 49759 DAVID_CRAIGGG Netherlands 14->32 30 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 14->30 dropped 20 conhost.exe 18->20         started        file8 signatures9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5ea758baddc8ee59eae86bdf492b597aec1c861115519357d3697f91f610c73c/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 13:35:59 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=l2tvrow5zdxft2xinppusk2zplwbzbqrcvizgv6tnf7zd5qqy46a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
13c90812e04490df7a3bc89e62dc71257610eb7244023ce7a6188adcb7657af1
RemcosRAT
1a1924da9d272ea46f8a0a62d7e2ecf01746e9a7621c8b1c36950788c3a3bd8c
RemcosRAT
485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87
RemcosRAT
68ea8e450d6a5df8ae9d671ac8f4d1f60548992e0e7b0ed32c1587fe7d7d14f2
RemcosRAT
736bd7b09aa1e987edac64868cc8e5db0d86e709652e0588e2023d052f3def8f
RemcosRAT
857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198
RemcosRAT
be83ef519ed5e3e444b10b4dd8a77515cda4993c6ce69f565405c9c2bd0901bc
RemcosRAT
d6465a100cfd41b10fdcd0c8423e2ac3e6cb3601c97f39077efd8d786cef5234
RemcosRAT
d7c62c1526c39e136b5c7a703c92ec5f8a67c987a7414e0cbb145172671a2293
RemcosRAT
e39c2e98071d4440d02e6d1aa86111536d6d01554489bd71f890455c05e424d3
RemcosRAT
+ 1'074 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos
Link:
https://tria.ge/reports/201019-mkmj4na81j/
Behaviour
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Remcos
Unpacked files
SH256 hash:
5ea758baddc8ee59eae86bdf492b597aec1c861115519357d3697f91f610c73c
MD5 hash:
e7c9bad8e2757e9c35fbc9c461dc9280
SHA1 hash:
c281c8ce2662cbe93c67c2d19fec858067dfa487
Link:
https://www.unpac.me/results/6e54cd1d-ccee-4ca8-acbf-d79020fe225f/
SH256 hash:
f21578fe032b7678e25c01cae04961c3ee6574f868d99592ea07725204192017
MD5 hash:
ddff0169e0d6366bea1642762201a9da
SHA1 hash:
3f197c984d20132704f456c5567d86eafce14690
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/6e54cd1d-ccee-4ca8-acbf-d79020fe225f/
SH256 hash:
209a9301af578943153210213d74e59f5402ef13b61adafd13d9fc3b04671a4b
MD5 hash:
2fa627a2894e27ee6c523e648df6c9a1
SHA1 hash:
4ba54bf431d63ebfa2241d150de650e76a2b29cf
Link:
https://www.unpac.me/results/6e54cd1d-ccee-4ca8-acbf-d79020fe225f/
SH256 hash:
9927b0c54996badc91f17775cfe74ff81b7a1770817994084f5526be51da851d
MD5 hash:
add5bc761bc2f117ab8be451a0ea3673
SHA1 hash:
6aa08c1132e4e56010037c622b3195adc7831454
Link:
https://www.unpac.me/results/6e54cd1d-ccee-4ca8-acbf-d79020fe225f/
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/6e54cd1d-ccee-4ca8-acbf-d79020fe225f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5ea758baddc8ee59eae86bdf492b597aec1c861115519357d3697f91f610c73c

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

gz 76869a30bbdf21b0d47076ff7d55a0c38a892a22b737f24a4872848f3da2ba5f

RemcosRAT

Executable exe 5ea758baddc8ee59eae86bdf492b597aec1c861115519357d3697f91f610c73c

(this sample)

  
Dropped by
MD5 75290c73045fa806c6e591060015671b
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 76869a30bbdf21b0d47076ff7d55a0c38a892a22b737f24a4872848f3da2ba5f
Cape
Cape
https://www.capesandbox.com/analysis/73054/

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