MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8df890fac057175f86dc5f301f1e1f6d45b2a1b36598934c3fc0144cf433137. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
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SHA256 hash: b8df890fac057175f86dc5f301f1e1f6d45b2a1b36598934c3fc0144cf433137
SHA3-384 hash: 8380b9ee693a97ffac05a06b4fc9d3b4dfcf43ec0204e07dcd4f3947fbc1e4423960478553117ea86b847dd69e6f1b4f
SHA1 hash: 7e923179fdf835e128a6da8de1fac9b91fd164e1
MD5 hash: 5f5552248193a7dde6896cc8482733ca
humanhash: four-fillet-juliet-virginia
File name:Document.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'413'120 bytes
First seen:2022-05-03 13:42:38 UTC
Last seen:2022-05-04 09:10:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a3587ebbd639674c0c7b8eeb6ae6abda (1 x RemcosRAT)
ssdeep 24576:9i0Ehe4IlwPaq58042u2HjhPUnC9cNV4A:9wIhqKvQjhsQc
Threatray 7'671 similar samples on MalwareBazaar
TLSH T12C658E21B3408576C7220E35CC0BD3BD6826BE717E16658777E93E8E5E3B390B5252A3
TrID 26.5% (.EXE) Win32 Executable Delphi generic (14182/79/4)
24.5% (.SCR) Windows screen saver (13101/52/3)
19.7% (.EXE) Win64 Executable (generic) (10523/12/4)
8.4% (.EXE) Win32 Executable (generic) (4505/5/1)
5.6% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
File icon (PE):PE icon
dhash icon 10808a8c8c8a8010 (77 x Formbook, 51 x AgentTesla, 44 x RemcosRAT)
Reporter madjack_red
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Document.exe
Verdict:
Malicious activity
Analysis date:
2022-05-03 15:48:25 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/7d64b07b-1e20-4baa-8482-1539c8eee9d0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/268420/
Detection(s):
SecuriteInfo.com.BackDoor.Infector.133.25576.16504.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching the process to interact with network services
Launching a process
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/16197/overview
Behaviour
MalwareBazaar
CheckScreenResolution
CheckCmdLine
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe keylogger replace.exe
Link:
https://www.filescan.io/uploads/6271316862b1ae4451d1a2ef/reports/b7d7cd4d-e785-48db-af4c-0272baa72513/overview
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/68982192-050f-4de7-89d3-f73936e26157
Result
Threat name:
DBatLoader Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/987141
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Delayed program exit found
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 619636 Sample: Document.exe Startdate: 03/05/2022 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 5 other signatures 2->61 8 Document.exe 1 22 2->8         started        13 Cnetkwg.exe 14 2->13         started        15 Cnetkwg.exe 17 2->15         started        process3 dnsIp4 41 l-0003.l-dc-msedge.net 13.107.43.12, 443, 49741, 49746 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 8->41 43 q7bfdg.dm.files.1drv.com 8->43 49 2 other IPs or domains 8->49 33 C:\Users\Public\Libraries\Cnetkwg.exe, PE32 8->33 dropped 35 C:\Users\...\Cnetkwg.exe:Zone.Identifier, ASCII 8->35 dropped 71 Writes to foreign memory regions 8->71 73 Creates a thread in another existing process (thread injection) 8->73 75 Injects a PE file into a foreign processes 8->75 17 DpiScaling.exe 2 2 8->17         started        21 cmd.exe 1 8->21         started        45 l-0004.l-dc-msedge.net 13.107.43.13, 443, 49782, 49785 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 13->45 47 q7bfdg.dm.files.1drv.com 13->47 51 2 other IPs or domains 13->51 77 Multi AV Scanner detection for dropped file 13->77 79 Allocates memory in foreign processes 13->79 23 logagent.exe 13->23         started        53 3 other IPs or domains 15->53 25 DpiScaling.exe 15->25         started        file5 signatures6 process7 dnsIp8 37 nuvez110.camdvr.org 94.46.246.59, 2404, 49779 UKSERVERS-ASUKDedicatedServersHostingandCo-Location United Kingdom 17->37 39 nuvez111.casacam.net 17->39 63 Contains functionality to steal Chrome passwords or cookies 17->63 65 Contains functionality to inject code into remote processes 17->65 67 Contains functionality to steal Firefox passwords or cookies 17->67 27 cmd.exe 1 21->27         started        29 conhost.exe 21->29         started        69 Delayed program exit found 23->69 signatures9 process10 process11 31 conhost.exe 27->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8df890fac057175f86dc5f301f1e1f6d45b2a1b36598934c3fc0144cf433137/
Threat name:
Win32.Backdoor.NetWiredRc
Create hunting rule
Status:
Malicious
First seen:
2022-05-03 13:43:13 UTC
File Type:
PE (Exe)
Extracted files:
42
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xdpysd5mavyxl6dnyxzqd4pb63kfwkq3gzmysngd7qaujt2dge3q._file
Verdict:
malicious
Similar samples:
150935662d729e862eaf1e72dc86f91c651cb993bd2c856181b036adc911fe23
RemcosRAT
25f95bec948dd2f304c9a68b61e057d3f7ac656ec3b9849c87c0751949e858e8
RemcosRAT
2667a1afb145f5a585ebda58b782a6453429e5c1b7d7286d2cd14d3de5065c45
RemcosRAT
6299e5f3946878e16130c6454bcd90bf319b3dcf8bd13d9a56bb867ba82eb655
RemcosRAT
713114d1dcb9d12994f1cfcb7cc765283cff3f2242ee57cdf15e849e15213a0b
RemcosRAT
83d7062a6e44aed6a161da23937cc66f97982e045d933dc4dd2049df4496d34b
RemcosRAT
9c9243f11dd44d1f1ac97716014be57244dca97a514e73d5f13da03392cba358
RemcosRAT
9ef6b1868ca09cf927398496746dc5c1e73980fe7e3c1ffe4f45004a1f11d16b
RemcosRAT
ba1b1f218d5236e121b68da9183c90e8e6640f91c77a5e8d0ea5eead270f2199
RemcosRAT
cc584053d88f795417a45c3f1eec2ccd26d42187ee6363f765a9af5e3f8ab8f8
RemcosRAT
+ 7'661 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:test persistence rat trojan
Link:
https://tria.ge/reports/220503-qz8r5safhk/
Behaviour
Modifies system certificate store
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Adds Run key to start application
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
nuvez111.casacam.net:2404
nuvez110.camdvr.org:2404
harvey205.camdvr.org:2404
harvey206.casacam.net:2404
harvey207.accesscam.org:2404
leaflet308.casacam.net:2404
Unpacked files
SH256 hash:
21c0fb2b53a8dc9d38a9cef684adce53f0dd311c3e8861cddda7946408f00b77
MD5 hash:
e91f52a1d9b8f23ae40be2e76017452c
SHA1 hash:
f86fd2cfcc8513e76c7c3ae74ae03d509aa3f453
Link:
https://www.unpac.me/results/43d55dd5-d60a-435e-a838-082290d04e7c/
SH256 hash:
b8df890fac057175f86dc5f301f1e1f6d45b2a1b36598934c3fc0144cf433137
MD5 hash:
5f5552248193a7dde6896cc8482733ca
SHA1 hash:
7e923179fdf835e128a6da8de1fac9b91fd164e1
Link:
https://www.unpac.me/results/43d55dd5-d60a-435e-a838-082290d04e7c/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8df890fac05/report/overview.html
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/b8df890fac057175f86dc5f301f1e1f6d45b2a1b36598934c3fc0144cf433137

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
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:Detects win.remcos.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/268420/

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