MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0. 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 6 File information Comments

SHA256 hash:	2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0
SHA3-384 hash:	24ff6f679c86aa8f5929f02c05db353ee7ff779ebb4e56853c9f35fa22e6932293d6c0ef0b841e8c76c9ab2d559a6510
SHA1 hash:	74ce9041a05b4195660d3ce5ac1f6f620f14818d
MD5 hash:	fbf6c63acd92d191fb1a77f15b90850c
humanhash:	river-fix-sink-edward
File name:	6FNEaMg3dNB7sGi.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	703'488 bytes
First seen:	2020-10-18 06:34:30 UTC
Last seen:	2020-10-18 07:57:11 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:0gEcQd3STz36T4IBIZT9oPb6Gxbql62ebKcJUwAbjYFbgAiaiZ:0gEd38jc1i5oPb6Gx2lf5Db0fC
Threatray	809 similar samples on MalwareBazaar
TLSH	A4E4BE166645BF14F1BD173BDCB48820D3FAEC01DA26DA3EAED13ACE44B1BA49511B07
Reporter	abuse_ch
Tags:	DHL exe nVpn RAT RemcosRAT

abuse_ch

Malspam distributing RemcosRAT:

HELO: mysmtp5
Sending IP: 52.175.198.254
From: 'DHL Customer Service" (customer@dhI.com)
Subject: UPS - Package Arrival Notification
Attachment: UPS Detail.img (contains "6FNEaMg3dNB7sGi.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

149

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/72624/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.424.3172.11166.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a window

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

Unauthorized injection to a recently created process

Creating a file

DNS request

Setting a global event handler for the keyboard

Sending a TCP request to an infection source

Enabling autorun by creating a file

Result

Threat name:

Remcos

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/494581

Signature

Contains functionality to capture and log keystrokes

Contains functionality to inject code into remote processes

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Detected Remcos RAT

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

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 dynamic DNS services

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/2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0/

Threat name:

ByteCode-MSIL.Backdoor.Remcos

Status:

Malicious

First seen:

2020-10-17 21:46:52 UTC

AV detection:

22 of 29 (75.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=flcwiv7f37mip4yyvmllxsh2s4iqsw4mwtfoth22gq2yzgufalya._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

1a1924da9d272ea46f8a0a62d7e2ecf01746e9a7621c8b1c36950788c3a3bd8c

RemcosRAT

485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87

RemcosRAT

4ca67f02ee334674afe88b3a4329449ecbfb8d9f83ceccc9198c5edecdafa96b

RemcosRAT

71d7c76b658053e46f6dff1e25fc4ed32bdbe2afd879ce510ce79d327c34bc31

RemcosRAT

76d694e6cd2c80db5b3e4a46497548a424e0f1babf5c36402cc48060ebe5ced0

RemcosRAT

8698337edbeaff1bcd719babffa69ff876d5ee74349886e5cba349b7cae7e19f

RemcosRAT

be83ef519ed5e3e444b10b4dd8a77515cda4993c6ce69f565405c9c2bd0901bc

RemcosRAT

c1db0bc7089675799a66c321a0401a402b94e0d455037b0cbd76e54188de43c8

RemcosRAT

fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054

RemcosRAT

+ 799 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

rat family:remcos

Link:

https://tria.ge/reports/201018-n15cp9as5e/

Behaviour

Creates scheduled task(s)

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Remcos

Unpacked files

SH256 hash:

edebe554d6ca8ac8ae3a709b95a294d7dbae8f566e000958051b1ab8e7cc31f1

MD5 hash:

94e671e157220498d2f1098737896cb8

SHA1 hash:

6d54464cc523bd840557784138ef369f091339e8

Link:

https://www.unpac.me/results/1fec3cb2-612f-48d3-a510-5f870454875b/

SH256 hash:

bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049

MD5 hash:

a92cc1f6e0a2742350dfda6726db14c0

SHA1 hash:

e5404e3ed46498deb8ad8966a774540c2b8e9c1e

Link:

https://www.unpac.me/results/1fec3cb2-612f-48d3-a510-5f870454875b/

SH256 hash:

927d25d5c5c51decd6052a2677742dfde8295f428e775dc0bba4a8eeb7c19668

MD5 hash:

cbbf9950036a5085f28a1012c10fb54f

SHA1 hash:

e5a0a895115eb65fbeb1e4758ba0a14f7dbb6470

Link:

https://www.unpac.me/results/1fec3cb2-612f-48d3-a510-5f870454875b/

SH256 hash:

0f2574db1d5043944e5c9ed2d83bfc450032382659b9a3150dd17cb75b18fe5b

MD5 hash:

14e8e83ee21b6a0be310741ccf866721

SHA1 hash:

216902b0fcf0d206ae3f667bf4535a0232cbb9b4

Detections:

win_remcos_g0

win_remcos_auto

Link:

https://www.unpac.me/results/1fec3cb2-612f-48d3-a510-5f870454875b/

Parent samples :

fc0abbcd2fbe032bc1bda90e14e1d029dfcf42ab6b98def50a47ff8823aa2349
76d694e6cd2c80db5b3e4a46497548a424e0f1babf5c36402cc48060ebe5ced0
fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054
2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0
a362c422dd9a2c24a7cc96dc14244742d24274b78da4b0a27157ac9e7c38b04a
b35741dc7b3748ad255394b04aa0b6f2a25fda177ba6ad504a2b802f555c33b2
3e369df40fa1613981245f3c71f9dd443dab8933e854b15de9735b5be53ef8fb

SH256 hash:

2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0

MD5 hash:

fbf6c63acd92d191fb1a77f15b90850c

SHA1 hash:

74ce9041a05b4195660d3ce5ac1f6f620f14818d

Link:

https://www.unpac.me/results/1fec3cb2-612f-48d3-a510-5f870454875b/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

AgentTesla

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0

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:	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:	win_remcos_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator