MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf80023d35bef226afa7cae9b91ae7128a9c52eb70a7428e5a019ef2ac0ceba0. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf80023d35bef226afa7cae9b91ae7128a9c52eb70a7428e5a019ef2ac0ceba0
SHA3-384 hash: 12cab79716407bb7322724c0196a0b230774eec3758c7ced24ad09721b49181929a6591dd26ce7191b383d4d5e56c7be
SHA1 hash: 1e4e3b7cda47eb3c4a2993c9e6800f61fcb5b487
MD5 hash: 29590740dcea22eff7887452dc757d7a
humanhash: dakota-louisiana-purple-tennis
File name:DOCUMENT.EXE
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:835'072 bytes
First seen:2022-04-21 07:47:39 UTC
Last seen:2022-04-21 08:05:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7eb9a673f51c76bc419bd48122f0267a (2 x RemcosRAT, 1 x NetWire, 1 x DBatLoader)
ssdeep 12288:5ak03Y2ci01sS32v0I24Vl5IDQfyjd6kR/MVw8gdhKzaRHrL:45IFz32vfLVl6DQ6jd/MnBz
Threatray 7'618 similar samples on MalwareBazaar
TLSH T148058E16B3915036D0332E785C5F96B46926BE21EF29B9862EF8FC0C3F356E23419257
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 7cf4b6ae8cd0e0f4 (2 x RemcosRAT, 1 x ModiLoader, 1 x NetWire)
Reporter cocaman
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Document.exe
Verdict:
Malicious activity
Analysis date:
2022-04-20 17:07:41 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/660b374a-c618-4a3a-81f8-08d267f30114

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/265343/
Detection(s):
Win.Dropper.Formbook-9917440-0
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/62610c34eab80a7a6c51fe00/reports/d6b67ba2-c005-45f9-9e68-1323e8f78c5a/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/85fd6684-99c5-428e-b318-51bc4711b056
Result
Threat name:
DBatLoader Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/980464
Signature
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
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Sigma detected: Suspicious Program Location with Network Connections
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 612951 Sample: DOCUMENT.EXE Startdate: 21/04/2022 Architecture: WINDOWS Score: 100 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 8 other signatures 2->63 8 DOCUMENT.EXE 1 23 2->8         started        13 Hrquggd.exe 16 2->13         started        15 Hrquggd.exe 16 2->15         started        process3 dnsIp4 43 zdzndq.dm.files.1drv.com 8->43 51 2 other IPs or domains 8->51 33 C:\Users\Public\Libraries\Hrquggd.exe, PE32 8->33 dropped 35 C:\Users\...\Hrquggd.exe:Zone.Identifier, ASCII 8->35 dropped 73 Writes to foreign memory regions 8->73 75 Creates a thread in another existing process (thread injection) 8->75 77 Injects a PE file into a foreign processes 8->77 17 DpiScaling.exe 2 2 8->17         started        21 cmd.exe 1 8->21         started        45 dm-files.ha.1drv.com 157.55.109.230, 443, 49782, 49785 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 13->45 47 zdzndq.dm.files.1drv.com 13->47 53 2 other IPs or domains 13->53 79 Multi AV Scanner detection for dropped file 13->79 23 DpiScaling.exe 13->23         started        49 192.168.2.1 unknown unknown 15->49 55 3 other IPs or domains 15->55 25 DpiScaling.exe 15->25         started        file5 signatures6 process7 dnsIp8 37 nuvez111.casacam.net 94.46.246.59, 2404, 49780 UKSERVERS-ASUKDedicatedServersHostingandCo-Location United Kingdom 17->37 39 nuvez112.ddns.net 17->39 41 2 other IPs or domains 17->41 65 Contains functionality to steal Chrome passwords or cookies 17->65 67 Contains functionality to inject code into remote processes 17->67 69 Contains functionality to steal Firefox passwords or cookies 17->69 71 Delayed program exit found 17->71 27 cmd.exe 1 21->27         started        29 conhost.exe 21->29         started        signatures9 process10 process11 31 conhost.exe 27->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf80023d35bef226afa7cae9b91ae7128a9c52eb70a7428e5a019ef2ac0ceba0/
Threat name:
Win32.Backdoor.NetWiredRc
Create hunting rule
Status:
Malicious
First seen:
2022-04-20 22:07:08 UTC
File Type:
PE (Exe)
Extracted files:
51
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z6aaepjvx3zcnl5hzlu3sgxhckfjyuxloctufds2agppflam5oqa._file
Verdict:
malicious
Similar samples:
25f95bec948dd2f304c9a68b61e057d3f7ac656ec3b9849c87c0751949e858e8
RemcosRAT
3ba7ad2a718413ab6d36dd156bbdd5ac1bcca860f039b14c4cb4382aee58bc88
RemcosRAT
6299e5f3946878e16130c6454bcd90bf319b3dcf8bd13d9a56bb867ba82eb655
RemcosRAT
9c9243f11dd44d1f1ac97716014be57244dca97a514e73d5f13da03392cba358
RemcosRAT
9ea23f24620fd64243f22df105d30b97810377238aed2fd83aa31665198175db
RemcosRAT
9ef6b1868ca09cf927398496746dc5c1e73980fe7e3c1ffe4f45004a1f11d16b
RemcosRAT
ba1b1f218d5236e121b68da9183c90e8e6640f91c77a5e8d0ea5eead270f2199
RemcosRAT
+ 7'608 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/220421-jm4t4adgb4/
Behaviour
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:
nuvez112.ddns.net:2404
nuvez111.ddns.net:2404
nuvez110.ddns.net:2404
nuvez111.casacam.net:2404
nuvez110.camdvr.org:2404
Unpacked files
SH256 hash:
cb9250eb1969ef939afaa4241bf68db390d6b4b122d6266d88a15a1a1d7270d1
MD5 hash:
cd6093410773b9dde4a69d6411ec5bb6
SHA1 hash:
5f58401a5441a36f6d8d3e14438bbeba96567367
Detections:
win_dbatloader_w0
Create hunting rule
Link:
https://www.unpac.me/results/4e800630-d82a-4841-a6d1-23b3f9f6a287/
Parent samples :
cf80023d35bef226afa7cae9b91ae7128a9c52eb70a7428e5a019ef2ac0ceba0
b2d45c9e0e80aa26cec7cfdd54a0bcd634de6233d68450374488b89ed3db47dc
SH256 hash:
cf80023d35bef226afa7cae9b91ae7128a9c52eb70a7428e5a019ef2ac0ceba0
MD5 hash:
29590740dcea22eff7887452dc757d7a
SHA1 hash:
1e4e3b7cda47eb3c4a2993c9e6800f61fcb5b487
Link:
https://www.unpac.me/results/4e800630-d82a-4841-a6d1-23b3f9f6a287/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cf80023d35be/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/cf80023d35bef226afa7cae9b91ae7128a9c52eb70a7428e5a019ef2ac0ceba0

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.

Malspam

RemcosRAT

iso eb0a00a601360aca8e5f211262247051f5741e75fecf2de11236dccd17c3ecaa

RemcosRAT

Executable exe cf80023d35bef226afa7cae9b91ae7128a9c52eb70a7428e5a019ef2ac0ceba0

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 eb0a00a601360aca8e5f211262247051f5741e75fecf2de11236dccd17c3ecaa
Cape
Cape
https://www.capesandbox.com/analysis/265343/
  
Dropped by
MD5 105a613ec0a85ba328747cc814addad1

Comments