MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a55a66b82ded5ef43e4d5ae844b41fffa03faa798a6ac190a9e32e95071d7491. 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: 5


Intelligence 5 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a55a66b82ded5ef43e4d5ae844b41fffa03faa798a6ac190a9e32e95071d7491
SHA3-384 hash: 94c6f506f7b3d71c54162db530a3bfc43df4ebcdc8128fc39d0bc506654e05a3e255999b995e956d0887fb5325308620
SHA1 hash: c08dda03e44c69798f8c6283d442cbb3c6a4069b
MD5 hash: 69732920186c8fc39c1fa32d3208b832
humanhash: football-speaker-yellow-autumn
File name:tax-irs.img
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:753'664 bytes
First seen:2021-02-15 19:43:55 UTC
Last seen:Never
File type: img
MIME type:application/x-iso9660-image
ssdeep 12288:S0iJvCuxH7JqglVmqRK7SvA/Y0YyDgq1dd8PjGGgMRn:FgCOh5suvu2kH1
TLSH 7CF427425B28BADFF68527B11C039E40354695E098643B6DF3ED5BEDD47E87EB03A088
Reporter abuse_ch
Tags:img IRS nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: dns13784.phdns20.es
Sending IP: 185.45.75.217
From: IRS <e-service@irs.gov>
Subject: E-file Provider Services
Attachment: tax-irs.img (contains "tax-irs.exe")

RemcosRAT C2:
calvinlarry3551.hopto.org:1604 (194.5.97.232)

Pointing to nVpn:

% Information related to '194.5.97.0 - 194.5.97.255'

% Abuse contact for '194.5.97.0 - 194.5.97.255' is 'abuse@privacyfirst.sh'

inetnum: 194.5.97.0 - 194.5.97.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-UK5
country: GB
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
mnt-by: PRIVACYFIRST-MNT
status: SUB-ALLOCATED PA
created: 2018-07-23T09:31:45Z
last-modified: 2020-08-26T17:48:55Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
PUA.Win.Downloader.Soft32downloader-6691270-0
Create hunting rule

Result
Verdict:
MALICIOUS
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a55a66b82ded5ef43e4d5ae844b41fffa03faa798a6ac190a9e32e95071d7491/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-02-15 19:44:05 UTC
AV detection:
8 of 46 (17.39%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uvngnobn5vppipsnlluejna776qd7ktzrjvmdefj4mxjkby5osiq._file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Backdoor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a55a66b82ded5ef43e4d5ae844b41fffa03faa798a6ac190a9e32e95071d7491

File information

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

Malspam

RemcosRAT

img a55a66b82ded5ef43e4d5ae844b41fffa03faa798a6ac190a9e32e95071d7491

(this sample)

RemcosRAT

Executable exe c67a752275a99a0ba74a93e5a715a591ad9db9eb010759cdf41b1e7df980e84d

  
Dropping
MD5 32e3f556afee586ec9e4fa504c3c1b5c
  
Dropping
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 c67a752275a99a0ba74a93e5a715a591ad9db9eb010759cdf41b1e7df980e84d

Comments