MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81b648fca4135b631044dd68aee71ee704dcc930ae635658b9438585c5dc6b90. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81b648fca4135b631044dd68aee71ee704dcc930ae635658b9438585c5dc6b90
SHA3-384 hash: 151cb24855a78af9d9a634476dbcf841dc7021c4696de3bd0bebda4ca3b8afd6749122ee8942f0f75cc8855e8f825f0a
SHA1 hash: 8f5911c4d0fad08a3f7f669afaf13e867a22950e
MD5 hash: 69952fcb36ea7b98b4e6e329aae836f3
humanhash: aspen-fruit-twelve-blue
File name:RFQ_4200004864664899008.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:776'704 bytes
First seen:2022-05-09 06:14:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8aaab755596d4e153deff3d89570bbae (2 x RemcosRAT, 1 x AveMariaRAT, 1 x BitRAT)
ssdeep 12288:8l9yyrn6OMyZINEg+Cu9aZvofn7EqNNY0ENwMeBAFCvU9r4FKI4/8:ClLRZId+d9aZvcVLOGHswJ
Threatray 1'279 similar samples on MalwareBazaar
TLSH T10DF49E62F2D08573C03659748C0BB6A65E36BE203E74A8972BE53D4C5F39AD43939393
TrID 22.3% (.EXE) Win32 Executable Delphi generic (14182/79/4)
20.6% (.SCR) Windows screen saver (13101/52/3)
16.5% (.EXE) Win64 Executable (generic) (10523/12/4)
15.7% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
7.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon bab0f1ecccce9e98 (17 x Formbook, 4 x SnakeKeylogger, 4 x RemcosRAT)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
241
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ_4200004864664899008.exe
Verdict:
Suspicious activity
Analysis date:
2022-05-09 06:16:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/83487db8-df40-41f5-b061-e6afb990a2fc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Generic-9938653-0
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
Sending an HTTP GET request
Creating a file
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/16763/overview
Behaviour
MalwareBazaar
CheckScreenResolution
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe greyware keylogger packed replace.exe
Link:
https://www.filescan.io/uploads/6278b17cbe0219041a866367/reports/aa9ba396-ccd2-48f0-969f-c314d9091b90/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/92687c6b-f21c-48b9-a98c-6e1f8cb0f4c7
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/989974
Signature
Allocates memory in foreign processes
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
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
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: 622470 Sample: RFQ_4200004864664899008.exe Startdate: 09/05/2022 Architecture: WINDOWS Score: 100 34 grannyclassone.ddns.net 2->34 36 firedownplay43883.duckdns.org 2->36 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->52 54 4 other signatures 2->54 7 RFQ_4200004864664899008.exe 1 16 2->7         started        12 Owhzblq.exe 13 2->12         started        14 Owhzblq.exe 14 2->14         started        signatures3 process4 dnsIp5 38 tothproject.hu 185.33.54.16, 443, 49717, 49720 SERVERGARDEN-ASServergardenKftHU Hungary 7->38 24 C:\Users\Public\Libraries\Owhzblq.exe, PE32 7->24 dropped 26 C:\Users\...\Owhzblq.exe:Zone.Identifier, ASCII 7->26 dropped 56 Writes to foreign memory regions 7->56 58 Allocates memory in foreign processes 7->58 60 Creates a thread in another existing process (thread injection) 7->60 16 logagent.exe 2 7->16         started        62 Multi AV Scanner detection for dropped file 12->62 64 Injects a PE file into a foreign processes 12->64 20 logagent.exe 12->20         started        22 DpiScaling.exe 14->22         started        file6 signatures7 process8 dnsIp9 28 grannyclassone.ddns.net 79.134.225.79, 49744, 49748, 49752 FINK-TELECOM-SERVICESCH Switzerland 16->28 30 firedownplay43883.duckdns.org 16->30 32 192.168.2.1 unknown unknown 16->32 40 Contains functionality to steal Chrome passwords or cookies 16->40 42 Contains functionality to inject code into remote processes 16->42 44 Contains functionality to steal Firefox passwords or cookies 16->44 46 Delayed program exit found 16->46 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81b648fca4135b631044dd68aee71ee704dcc930ae635658b9438585c5dc6b90/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2022-05-09 02:42:45 UTC
File Type:
PE (Exe)
Extracted files:
63
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qg3er7fecnnwgece3vuk5zy644cnzsjqvzrvmwfziocylro4noia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
08c0273e2bd04a047d150303d4cd05076c2d2877afa82543ce43fc8296d86a7c
RemcosRAT
31a6f2f0d3d503cabf02e31fee5edab37f32c97360f9204654130ab98f5143b6
RemcosRAT
48d05f98dc0e107ca09492b3f4e3728464d8c844870057c0aabc728f0043b2f7
RemcosRAT
99e39ef9a5267ed9790fbef614fa3a0054025c1cb866295e9e320bc95b128280
RemcosRAT
9c9243f11dd44d1f1ac97716014be57244dca97a514e73d5f13da03392cba358
RemcosRAT
b8df890fac057175f86dc5f301f1e1f6d45b2a1b36598934c3fc0144cf433137
RemcosRAT
bd09b7f6ad0ca7e7c74eee9ecab5fd3de92f24529c708370710161847d0861be
RemcosRAT
db5a12184d9b6acdf484a88b3e65aa9435f8a9d7eda48418aef2d028b98913d4
RemcosRAT
+ 1'269 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost persistence rat trojan
Link:
https://tria.ge/reports/220509-gzwm5scdg9/
Behaviour
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
firedownplay43883.duckdns.org:6190
grannyclassone.ddns.net:6190
Unpacked files
SH256 hash:
81b648fca4135b631044dd68aee71ee704dcc930ae635658b9438585c5dc6b90
MD5 hash:
69952fcb36ea7b98b4e6e329aae836f3
SHA1 hash:
8f5911c4d0fad08a3f7f669afaf13e867a22950e
Link:
https://www.unpac.me/results/6f7958aa-ad77-48cb-afcd-3aa8f0f802bc/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81b648fca413/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
Link:
https://yomi.yoroi.company/submissions/81b648fca4135b631044dd68aee71ee704dcc930ae635658b9438585c5dc6b90

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.

  
Delivery method
Distributed via e-mail link

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