MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af5e020c1ac3f3590036495b28ebad3153c66986da343142db222a5df5d42b2d. 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 9 File information Comments

SHA256 hash:	af5e020c1ac3f3590036495b28ebad3153c66986da343142db222a5df5d42b2d
SHA3-384 hash:	698968f9ce83f5fe755d6aabc352f41d9e35f0cc2d6a4ad31c0f5d8fbed1b92a299baa73ee19c1a7162ff9d99cf7d2f2
SHA1 hash:	3fdada0e5c3a0e73f38f5b5bc16c13323ad30ff4
MD5 hash:	5f4f037e04be43a34b342e4e481e1a90
humanhash:	mirror-lithium-uniform-oven
File name:	Urgent order 1812021-672 Q30721,pdf.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	909'312 bytes
First seen:	2021-01-18 07:50:01 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:xw2ut5cBAII91RrMqxtN9pWs6m4nq0K9F7VU2b0luxzCiydpN:GUI91RrMqxtN9d6m4q0T2b0lNpN
Threatray	2 similar samples on MalwareBazaar
TLSH	F815083D71A44B15E8396FF05A6483EC8BBDEE591526DE09FCC13AF7E9727018206623
Reporter	abuse_ch
Tags:	exe nVpn RAT RemcosRAT

abuse_ch

Malspam distributing RemcosRAT:

HELO: mail.ciemonteria.co
Sending IP: 104.131.84.225
From: "Mr. BOHDAN G." <info@dynatect.de>
Subject: RE: Purchase order Q307/21
Attachment: Urgent order 1812021-672 Q30721,pdf.iso (contains "Urgent order 1812021-672 Q30721,pdf.exe")

RemcosRAT C2:
goddywin.freedynamicdns.net:2525 (185.140.53.131)

Pointing to 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-EU
country: EU
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: 2020-11-06T23:02:44Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

114

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Urgent order 1812021-672 Q30721,pdf.exe

Verdict:

Malicious activity

Analysis date:

2021-01-18 07:55:51 UTC

Tags:

trojan rat remcos

Link:

https://app.any.run/tasks/b0376cf8-a81d-4f7f-b251-d0f6666e3b52

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/112421/

Detection(s):

SecuriteInfo.com.Trojan.Siggen11.57608.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

DNS request

Sending a UDP request

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Launching a process

Creating a process with a hidden window

Deleting a recently created file

Unauthorized injection to a recently created process

Creating a file

Sending a TCP request to an infection source

Enabling autorun by creating a file

Result

Threat name:

Remcos

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/583406

Signature

.NET source code contains potential unpacker

Binary contains a suspicious time stamp

Detected Remcos RAT

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

Machine Learning detection for dropped file

Machine Learning detection for sample

Sigma detected: Remcos

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:

Download SVG

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/af5e020c1ac3f3590036495b28ebad3153c66986da343142db222a5df5d42b2d/

Threat name:

Win32.Trojan.Wacatac

Status:

Malicious

First seen:

2021-01-18 07:50:17 UTC

AV detection:

6 of 46 (13.04%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=v5paeda2ypzvsabwjfnsr25ngfj4m2mg3i2dcqw3eivf35oufmwq._file

Verdict:

unknown

RemcosRAT

ee86f083fdb8d5e2f4d1d609faf964fa08a01875bc0abb364aeb09bb83c35f8c

RemcosRAT

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos rat

Link:

https://tria.ge/reports/210118-vrns7g5nfx/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Remcos

Malware Config

C2 Extraction:

goddywin.freedynamicdns.net:2525

Unpacked files

SH256 hash:

fe13f25f0c030c4672222f13d6ce914b7fdd4061b260aecd70c38e73dee93a4e

MD5 hash:

5297ecec101d156aa42b8e2355ec549f

SHA1 hash:

913dede90b34ee63304fd359e3a29833baf17bbe

Link:

https://www.unpac.me/results/80db50eb-57f0-4005-a2d7-757450b7d1f8/

SH256 hash:

4e35d8b65f3b68c8d8b71f1bc02c785ba90ddf13c0df968684df725fdb21d499

MD5 hash:

419fcfc56aa51b5fb8ac6ffc06785f6e

SHA1 hash:

1f99b0e429bfdba7b1439a427e223b77e6c3bce9

Detections:

win_remcos_g0

win_remcos_auto

Link:

https://www.unpac.me/results/80db50eb-57f0-4005-a2d7-757450b7d1f8/

SH256 hash:

2f65f6c4917c8a30a86d06797091de971a1bc3bd6ba9c6e31c202b7a452b7a9d

MD5 hash:

3d2ebababc6c571ce1374e83dae89ab3

SHA1 hash:

0471146dcfbd2e4d63bf1e7b3a86dd7c6d6eddb7

Link:

https://www.unpac.me/results/80db50eb-57f0-4005-a2d7-757450b7d1f8/

SH256 hash:

af5e020c1ac3f3590036495b28ebad3153c66986da343142db222a5df5d42b2d

MD5 hash:

5f4f037e04be43a34b342e4e481e1a90

SHA1 hash:

3fdada0e5c3a0e73f38f5b5bc16c13323ad30ff4

Link:

https://www.unpac.me/results/80db50eb-57f0-4005-a2d7-757450b7d1f8/

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/af5e020c1ac3f3590036495b28ebad3153c66986da343142db222a5df5d42b2d

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 Create hunting rule
Author:	abuse.ch

Rule name:	Chrome_stealer_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Chrome in files like avemaria

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer Create hunting rule
Author:	ditekSHen
Description:	detects Windows exceutables potentially bypassing UAC using eventvwr.exe

Rule name:	Keylog_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Contains Keylog

Rule name:	Parallax Create hunting rule
Author:	@bartblaze
Description:	Identifies Parallax RAT.

Rule name:	Remcos Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Remcos in memory

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:	autogenerated rule brought to you by yara-signator