MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b530ffc8af72cb51943f2fb8f38bc778c4544f57b61de593960dd4a97327ca64. 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: 9
| SHA256 hash: | b530ffc8af72cb51943f2fb8f38bc778c4544f57b61de593960dd4a97327ca64 |
|---|---|
| SHA3-384 hash: | d9f58e6cb32d11963a2a8efa4fe03b8452284fd1d33ad6fe70984a1c1de030dc436d57f0e0e810f0f79db65d64b22b43 |
| SHA1 hash: | 03c5bcdc077a42a8f8c51bbd4c1975d74572ce14 |
| MD5 hash: | 9ba9616a69760f5904e6442cb21c0449 |
| humanhash: | william-xray-golf-burger |
| File name: | Contract.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 771'072 bytes |
| First seen: | 2020-10-21 07:55:52 UTC |
| Last seen: | 2020-10-25 21:44:27 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:AesDpcJqvOnF9e2iNoRLAROZOuNjHUwVo11OwNVWdfqXP0tDz:A/1KFbho1AwNVWd9 |
| Threatray | 882 similar samples on MalwareBazaar |
| TLSH | DDF4CE3532E9BF10E06D463BC9A0A461DBFADC03EA12D46ABCDD369D5FB1BA50512703 |
| Reporter |  abuse_ch |
| Tags: | exe nVpn RAT RemcosRAT |
abuse_ch
Malspam distributing RemcosRAT:HELO: arslanturktr.com
Sending IP: 37.49.225.237
From: Ensar Ozserdar | Arslanturk S.A <ensar.ozserdar@arslanturktr.com>
Subject: New Contract
Attachment: Contract.gz (contains "Contract.exe")
RemcosRAT C2:
185.140.53.233:2021
Hosted on nVpn:
% Information related to '185.140.53.0 - 185.140.53.255'
% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'
inetnum: 185.140.53.0 - 185.140.53.255
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-BE
country: BE
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-10-02T20:59:33Z
source: RIPE
Intelligence
File Origin
# of uploads :
2
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Forced shutdown of a system process
Enabling autorun by creating a file
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Detected Remcos RAT
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Status:
Malicious
First seen:
2020-10-20 17:35:56 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 872 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
rat family:remcos
Behaviour
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Remcos
Unpacked files
SH256 hash:
b530ffc8af72cb51943f2fb8f38bc778c4544f57b61de593960dd4a97327ca64
MD5 hash:
9ba9616a69760f5904e6442cb21c0449
SHA1 hash:
03c5bcdc077a42a8f8c51bbd4c1975d74572ce14
SH256 hash:
a80a256ec6a2ed86b7dd19c83421c607ad09dd32d31f114c6404e90ba2c2d055
MD5 hash:
233b5f9868d8f1d371ab49570cfccfda
SHA1 hash:
45ce263c7cd9717d985d2d12433dc2c05632efd4
Detections:
win_remcos_g0
win_remcos_auto
SH256 hash:
5443ddc4c8c2b7a556475f4e55f4fd9fcfbf444dc6421d781d80d262c49fe68c
MD5 hash:
c2a6cad80c9d398b877b7e4e615236f3
SHA1 hash:
7b87a00ec656240f911f265b7a263ae9133d5163
SH256 hash:
cd1cf0960810b949e177cd8e19892a3b9e7bf016db53248ba6355331878d9211
MD5 hash:
a3f94479fd5f96e0ee95f7fd6d67d60c
SHA1 hash:
c417aaf2fc3cb75caea6321d47c76dfad4b35144
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Please note that we are no longer able to provide a coverage score for Virus Total.
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: | ach_RemcosRAT |
|---|---|
| Author: | abuse.ch |
| Rule name: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | Parallax |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies Parallax RAT. |
| Rule name: | Remcos |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Remcos in memory |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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