MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ca4b47f6524c20ad58b65228857c61b95e94666c79f40509b22bf31b9769298. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ca4b47f6524c20ad58b65228857c61b95e94666c79f40509b22bf31b9769298
SHA3-384 hash: fea990096217de79d08f76a3fe364d55077509f34ac56dda7e30cc589c0961778cd97a71d194d3fb88a8062f3e2e90d3
SHA1 hash: 20ed4539b714058d8d78c3064ab6dd56bd4f3e36
MD5 hash: b1e89a3885c79790b925509be083f0db
humanhash: oxygen-bulldog-berlin-west
File name:decode_1c10a99c19fb36be353864fd5f0732c8d817395d104907a6386df97dd3af72c8
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:492'544 bytes
First seen:2023-07-07 13:54:08 UTC
Last seen:2023-08-15 14:49:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 04d77d421b8e5297898a3fce39d74267 (41 x RemcosRAT)
ssdeep 12288:vRXxReZj3WZfj/2eSseWFaIe2+f8CL47bs/Zf27DU:vx7cyF2eSsewS8W47eZO
Threatray 2'202 similar samples on MalwareBazaar
TLSH T12BA4BF02BAC1C072D57651300D2AF775DAF9BD20183A457BB3DA1D9BFD70190B63AAB2
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter jstrosch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
299
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
decode_1c10a99c19fb36be353864fd5f0732c8d817395d104907a6386df97dd3af72c8
Verdict:
Malicious activity
Analysis date:
2023-07-07 13:54:52 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/606f1f9b-f0f7-45e8-a857-65e7f9976b43

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/410871/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/96319/overview
Behaviour
MalwareBazaar
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
Gathering data
Verdict:
Malicious
Labled as:
Remcos.Generic
Link:
https://www.hybrid-analysis.com/sample/4ca4b47f6524c20ad58b65228857c61b95e94666c79f40509b22bf31b9769298
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/fe33c345-b672-45bd-bdf0-87791145b56c
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4ca4b47f6524c20ad58b65228857c61b95e94666c79f40509b22bf31b9769298/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-07-07 13:55:07 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jssli73fetbavvmlmuriqv6gdok6srtgy6puaue3ek7tdolwskma._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
29cbb0d27bbc787365e8c2aa11205b0218a178eda781bca644f8c77e55ad03c7
RemcosRAT
49e4d4f6aaf967b656487d0d3dc27ecf3812b2d454b85339ae9ea79021bbe0d6
RemcosRAT
55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16
RemcosRAT
67c7c5ec03b9334d1a132f2b0fd7ddc99515ccdb2372aa3b16463ea34d09f060
RemcosRAT
9474ca0fa771bd4dd2202e312ada0090f6890635b9039b5be855cc7cb8eab6ee
RemcosRAT
b41e4528449d3fa1730eca98df0dc9fd9e3683ccfaedf1d72ee2af2899f18db8
RemcosRAT
df906c77d802e4e977ff24b11e1840d6948338250023a27b2b30ad9ac6e3f4ba
RemcosRAT
e970fdbbcd35127388ad909820df33fbe5d0a7bd4b52ccde011c5782edfe03fc
RemcosRAT
f60667b9e2a0a25221cdb47844149beb3b1cd08abbc3360e8684fad9d8aaa20e
RemcosRAT
f82c643baf10986a8ad197d2565b7a093aa1eef8b9d4463f4a42d3cc81a45b8f
RemcosRAT
+ 2'192 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:3julio
Link:
https://tria.ge/reports/230707-q74hdsaf4w/
Behaviour
Suspicious use of SetWindowsHookEx
Malware Config
C2 Extraction:
dosremdos.duckdns.org:7778
Unpacked files
SH256 hash:
4ca4b47f6524c20ad58b65228857c61b95e94666c79f40509b22bf31b9769298
MD5 hash:
b1e89a3885c79790b925509be083f0db
SHA1 hash:
20ed4539b714058d8d78c3064ab6dd56bd4f3e36
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/dcedaf45-b84c-4972-9803-931d4e9e2be0/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ca4b47f6524/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/4ca4b47f6524c20ad58b65228857c61b95e94666c79f40509b22bf31b9769298

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
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
Other
Cape
Cape
https://www.capesandbox.com/analysis/410871/

Comments