MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054. 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:	fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054
SHA3-384 hash:	e0b084822016b44c90c1250ad0e45e3910c143c4435e49ba611f944b64c8edfee5cb233e1121045338ac4989112add77
SHA1 hash:	f0b39308a9fb58898af53cb311769d434e4920ec
MD5 hash:	55e6f1277b539c9d335f4f9465e0b045
humanhash:	jersey-timing-lima-lamp
File name:	36bgu0AlofWEwXq.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	649'728 bytes
First seen:	2020-10-17 17:43:04 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:Rc6PICTwB3jg/m1vd/SPDASxFBEfPJLjUgs0RY6zKCPyKw:SwenSPjxFBOPJNRv
Threatray	890 similar samples on MalwareBazaar
TLSH	71D49D217AD8EF68F1BD53379464540093F9FC52AA32C56E3EE922CE0AB1F90D621717
Reporter	abuse_ch
Tags:	DHL exe RAT RemcosRAT

abuse_ch

Malspam distributing RemcosRAT:

HELO: mysmtp1
Sending IP: 13.66.133.204
From: 'DHI Customer Service <customer@dhi.com>
Subject: DHL - Pending delivery
Attachment: DHL Detail.img (contains "36bgu0AlofWEwXq.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

136

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/72574/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.424.32719.9959.UNOFFICIAL

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

Unauthorized injection to a recently created process

Creating a file

DNS request

Setting a global event handler for the keyboard

Connection attempt 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/494487

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/fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054/

Threat name:

ByteCode-MSIL.Backdoor.Remcos

Status:

Malicious

First seen:

2020-10-17 15:29:16 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=7r75g677jgbhm3cepprddsdkyjj34lwib4mpne77kc2g6zwa6bka._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

1a1924da9d272ea46f8a0a62d7e2ecf01746e9a7621c8b1c36950788c3a3bd8c

RemcosRAT

485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87

RemcosRAT

4ca67f02ee334674afe88b3a4329449ecbfb8d9f83ceccc9198c5edecdafa96b

RemcosRAT

71d7c76b658053e46f6dff1e25fc4ed32bdbe2afd879ce510ce79d327c34bc31

RemcosRAT

736bd7b09aa1e987edac64868cc8e5db0d86e709652e0588e2023d052f3def8f

RemcosRAT

76d694e6cd2c80db5b3e4a46497548a424e0f1babf5c36402cc48060ebe5ced0

RemcosRAT

80f45086395417ea3bda68a20d2fc5b0bc5050c000023d82544fd2b5b5a8ce89

RemcosRAT

8698337edbeaff1bcd719babffa69ff876d5ee74349886e5cba349b7cae7e19f

RemcosRAT

be83ef519ed5e3e444b10b4dd8a77515cda4993c6ce69f565405c9c2bd0901bc

RemcosRAT

+ 880 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

rat family:remcos

Link:

https://tria.ge/reports/201017-y99y2986hx/

Behaviour

Creates scheduled task(s)

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Remcos

Unpacked files

SH256 hash:

8e2478c2283f19f1074eded1c5bbf08d785c6eb4cf951ea33fcb052f0a1e220f

MD5 hash:

c3cdb23d839f0d67f91af67ceb875656

SHA1 hash:

ba2ec30406c44d58f5db4282cc5f9abea39709e7

Link:

https://www.unpac.me/results/c2cc26f8-3537-4d7f-88e1-3ae667af7972/

SH256 hash:

9735367b8fcddbcabb1b921379f9c1723ba5f2ecc8e006398549d4e9ec3e09e1

MD5 hash:

ee29c9b3fa9caca8929b6863b993f1b9

SHA1 hash:

d382ee98b3a8c9d7a3741dd8079458bad7537738

Link:

https://www.unpac.me/results/c2cc26f8-3537-4d7f-88e1-3ae667af7972/

SH256 hash:

bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049

MD5 hash:

a92cc1f6e0a2742350dfda6726db14c0

SHA1 hash:

e5404e3ed46498deb8ad8966a774540c2b8e9c1e

Link:

https://www.unpac.me/results/c2cc26f8-3537-4d7f-88e1-3ae667af7972/

SH256 hash:

0f2574db1d5043944e5c9ed2d83bfc450032382659b9a3150dd17cb75b18fe5b

MD5 hash:

14e8e83ee21b6a0be310741ccf866721

SHA1 hash:

216902b0fcf0d206ae3f667bf4535a0232cbb9b4

Detections:

win_remcos_g0

win_remcos_auto

Link:

https://www.unpac.me/results/c2cc26f8-3537-4d7f-88e1-3ae667af7972/

Parent samples :

fc0abbcd2fbe032bc1bda90e14e1d029dfcf42ab6b98def50a47ff8823aa2349
76d694e6cd2c80db5b3e4a46497548a424e0f1babf5c36402cc48060ebe5ced0
fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054
2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0
a362c422dd9a2c24a7cc96dc14244742d24274b78da4b0a27157ac9e7c38b04a
b35741dc7b3748ad255394b04aa0b6f2a25fda177ba6ad504a2b802f555c33b2
3e369df40fa1613981245f3c71f9dd443dab8933e854b15de9735b5be53ef8fb

SH256 hash:

fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054

MD5 hash:

55e6f1277b539c9d335f4f9465e0b045

SHA1 hash:

f0b39308a9fb58898af53cb311769d434e4920ec

Link:

https://www.unpac.me/results/c2cc26f8-3537-4d7f-88e1-3ae667af7972/

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

Threat name:

Remcos

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/fc7fd37bff4982766c447be231c86ac253be2ec80f18f693ff50b46f66c0f054

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