MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b6f4a000f03183f2bbbebf07130189f5f5b9617dba37f9b90980ec228ba8180. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5b6f4a000f03183f2bbbebf07130189f5f5b9617dba37f9b90980ec228ba8180
SHA3-384 hash: b83724d6ac57d624fa6eaef1527f9d9996e128c31113efad6129322680e9791085e53768e3a26115cd8cea4f60f8e45b
SHA1 hash: 77f3fc85a989662f128695d307f53fee23f84975
MD5 hash: 2d5deefb5eb5d7d4d7edf6e0e3d94ada
humanhash: golf-fourteen-bluebird-grey
File name:KRAHN PURCHASE ORDER_102120,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'066'544 bytes
First seen:2020-10-21 10:10:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 43f29e85d3150ea9833f321c3be626c8 (9 x ModiLoader, 1 x NetWire, 1 x AveMariaRAT)
ssdeep 12288:WhVKeF40BRicbRToD1whMmvlThTD3mG91gX2jU6vK4fMsdF6eIDx:WhU0RicG6b9T17mG9uX2NKDkF6zDx
Threatray 1'081 similar samples on MalwareBazaar
TLSH 91356C627290C332D072C6B9CD5EA6787599FE40ED287846F7EC7D4A6F35E81202B247
Reporter abuse_ch
Tags:exe RemcosRAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: s7.itlinkonline.com
Sending IP: 95.217.94.194
From: KRAHN Chemie Deutschland GmbH <sales.de@krahn.eu>
Subject: KRAHN PO_102120
Attachment: KRAHN PURCHASE ORDER_102120,pdf.iso (contains "KRAHN PURCHASE ORDER_102120,pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
67
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/74005/
Detection(s):
SecuriteInfo.com.Artemis40C354B68313.10960.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Launching a process
Running batch commands
Creating a process with a hidden window
Deleting a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Connection attempt to an infection source
Unauthorized injection to a system process
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/505626
Signature
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
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: Fodhelper UAC Bypass
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: 301866 Sample: KRAHN PURCHASE ORDER_102120... Startdate: 21/10/2020 Architecture: WINDOWS Score: 100 42 storyofpadi.ddns.net 2->42 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 Detected Remcos RAT 2->60 62 10 other signatures 2->62 9 KRAHN PURCHASE ORDER_102120,pdf.exe 1 15 2->9         started        14 Cnipdrv.exe 13 2->14         started        16 Cnipdrv.exe 13 2->16         started        signatures3 process4 dnsIp5 46 cdn.discordapp.com 162.159.133.233, 443, 49743 CLOUDFLARENETUS United States 9->46 48 discord.com 162.159.135.232, 443, 49742 CLOUDFLARENETUS United States 9->48 40 C:\Users\user\AppData\Local\...\Cnipdrv.exe, PE32 9->40 dropped 64 Writes to foreign memory regions 9->64 66 Creates a thread in another existing process (thread injection) 9->66 68 Injects a PE file into a foreign processes 9->68 18 notepad.exe 4 9->18         started        21 ieinstal.exe 2 9->21         started        50 162.159.128.233, 443, 49761 CLOUDFLARENETUS United States 14->50 52 162.159.129.233, 443, 49762, 49767 CLOUDFLARENETUS United States 14->52 70 Multi AV Scanner detection for dropped file 14->70 72 Machine Learning detection for dropped file 14->72 24 ieinstal.exe 14->24         started        54 162.159.138.232, 443, 49766 CLOUDFLARENETUS United States 16->54 26 ieinstal.exe 16->26         started        file6 signatures7 process8 dnsIp9 38 C:\Users\Public38atso.bat, ASCII 18->38 dropped 28 cmd.exe 1 18->28         started        30 cmd.exe 1 18->30         started        44 storyofpadi.ddns.net 79.134.225.69, 2130, 49756, 49757 FINK-TELECOM-SERVICESCH Switzerland 21->44 file10 process11 process12 32 conhost.exe 28->32         started        34 reg.exe 1 1 28->34         started        36 conhost.exe 30->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5b6f4a000f03183f2bbbebf07130189f5f5b9617dba37f9b90980ec228ba8180/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-10-21 09:33:46 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lnxuuaapammd6k535pyhcmayt5pvxfqx3orx7g4qtahmekf2qgaa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
31963673bc347fe4a6c795c90a0bcbddbf701158feab1b831bce2b082aeacf7f
RemcosRAT
46ff7f6619eda7e3b2c5b36a2d3f21b154749d31ae2695c4d23c992361ce1f58
RemcosRAT
47d694226b7f034e868ded9f3ebc12b1afbf9bbccb791f4a98c61955f10efa19
RemcosRAT
5b1f1843bbb992e3d5c635aa69d8409de4ae4d3f04cf19994d8e953e99cf451a
RemcosRAT
99a8e371d2d05838012be53f7e86a675acdc9be4770eb4372779a85a574c2f1a
RemcosRAT
9b60c965a1425ff01954ce6a917cb4486d5af5cb36f538233139042ea324a64e
RemcosRAT
b8c6d9ced99143d34fd8829125c6ff46bc0c55569f401ec4d1354f3d0825c4c4
RemcosRAT
c358b44f578fd2dedbb1899038415395ae2052c113aaa149481cde295e022bda
RemcosRAT
ce30dea0b1d4fa181753600eb63c1d2f1a7de1bd848dcdbe196f6a35afef0ea9
RemcosRAT
fb28260466e3ce4029f48c81b60a1ef83e755e772672a28cea1f00f51984c808
RemcosRAT
+ 1'071 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence trojan family:modiloader rat family:remcos
Link:
https://tria.ge/reports/201021-jnmc5jznax/
Behaviour
Modifies registry key
Modifies system certificate store
Suspicious use of WriteProcessMemory
Adds Run key to start application
ModiLoader First Stage
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Unpacked files
SH256 hash:
5b6f4a000f03183f2bbbebf07130189f5f5b9617dba37f9b90980ec228ba8180
MD5 hash:
2d5deefb5eb5d7d4d7edf6e0e3d94ada
SHA1 hash:
77f3fc85a989662f128695d307f53fee23f84975
Link:
https://www.unpac.me/results/00c3e44e-7f86-454e-81a2-6b47abe863aa/
SH256 hash:
539b4045d41eac690b06247498a642c9d938ce5f9402d7abcd433b2906596784
MD5 hash:
02640b2c79bd8a8e947658ed06194b51
SHA1 hash:
82e0c93ef3fd7d93da5df93d17245e8c3bd0f8c2
Link:
https://www.unpac.me/results/00c3e44e-7f86-454e-81a2-6b47abe863aa/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5b6f4a000f03183f2bbbebf07130189f5f5b9617dba37f9b90980ec228ba8180

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:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:MALWARE_Win_DLAgent03
Create hunting rule
Author:ditekSHen
Description:Detects known Delphi downloader agent downloading second stage payload, notably from discord

File information

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

Malspam

RemcosRAT

iso 828b5e900fe707ed2e0614fcaa0e566c89f8beb8dcb431183f6981518b973fbd

RemcosRAT

Executable exe 5b6f4a000f03183f2bbbebf07130189f5f5b9617dba37f9b90980ec228ba8180

(this sample)

  
Dropped by
MD5 2b3571045fab1c72d5bdb0bdf16655ec
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/74005/
  
Dropped by
SHA256 828b5e900fe707ed2e0614fcaa0e566c89f8beb8dcb431183f6981518b973fbd

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