MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5fcc312a31029c692e592e1b70ec22e1008cfb3df910ab2fec80a193d420fe08. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5fcc312a31029c692e592e1b70ec22e1008cfb3df910ab2fec80a193d420fe08
SHA3-384 hash: 6f54a31f0817f342e4f12e90bbbc36cc016439332a6a223338a5ec4cebda5d2d223b3795a27198cb7f77df5364a61f7e
SHA1 hash: 77643a9ed9ab9a1a627abc2b6e3c77766610d8b6
MD5 hash: 71afa50a017808b5526c81bfcd0a1683
humanhash: foxtrot-butter-coffee-helium
File name:PO FH8765446878.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:491'008 bytes
First seen:2020-10-23 17:35:10 UTC
Last seen:2020-10-23 19:09:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:t9QOMZ5bKYMC2iaX0I1Clr6LFQ0GXgoyyX5VXNEXH73JvfTtR:taOkbKYMC2L1IG2IB
Threatray 944 similar samples on MalwareBazaar
TLSH E8A4723CADD5263796BBD6B6C9F619DBFA5178433112AC0E90D713820923BA77DC201E
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: server.uthink.eu
Sending IP: 87.76.27.126
From: Diago Gimenez<compras@valmec.com.ar>
Subject: RE: Pedido PO FH8765446878
Attachment: PO FH8765446878.iso (contains "PO FH8765446878.exe")

RemcosRAT C2:
uzbektourism8739.ddns.net:4354 (185.244.30.8)

Pointing to nVpn:

% Information related to '185.244.30.0 - 185.244.30.255'

% Abuse contact for '185.244.30.0 - 185.244.30.255' is 'abuse@privacyfirst.sh'

inetnum: 185.244.30.0 - 185.244.30.255
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-HU
country: HU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-29T14:10:27Z
last-modified: 2020-10-07T21:39:48Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75114/
Detection(s):
SecuriteInfo.com.Artemis71AFA50A0178.20778.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Connection attempt to an infection source
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/508352
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 303297 Sample: PO FH8765446878.exe Startdate: 23/10/2020 Architecture: WINDOWS Score: 100 35 uzbektourism8739.ddns.net 2->35 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for dropped file 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 12 other signatures 2->47 7 PO FH8765446878.exe 1 4 2->7         started        11 vlc.exe 1 2->11         started        13 vlc.exe 2->13         started        signatures3 process4 file5 27 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 7->27 dropped 29 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 7->29 dropped 31 C:\Users\user\...\PO FH8765446878.exe.log, ASCII 7->31 dropped 49 Injects a PE file into a foreign processes 7->49 15 PO FH8765446878.exe 2 3 7->15         started        19 PO FH8765446878.exe 7->19         started        33 C:\Users\user\AppData\Local\...\vlc.exe.log, ASCII 11->33 dropped 21 vlc.exe 11->21         started        23 vlc.exe 13->23         started        signatures6 process7 dnsIp8 37 uzbektourism8739.ddns.net 185.244.30.8, 4354, 49752, 49753 DAVID_CRAIGGG Netherlands 15->37 39 192.168.2.1 unknown unknown 15->39 25 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 15->25 dropped file9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5fcc312a31029c692e592e1b70ec22e1008cfb3df910ab2fec80a193d420fe08/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-10-23 15:14:06 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=l7gdckrrakogslszfynxb3bc4eaiz6z57eikwl7mqcqzhvba7yea._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
046ff9f608525faf76e353263ddad485e547ff4797b183ddd850f0f2c8209f91
RemcosRAT
1a1924da9d272ea46f8a0a62d7e2ecf01746e9a7621c8b1c36950788c3a3bd8c
RemcosRAT
485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87
RemcosRAT
65228df6e85371a2b4b1e5340f11e36cdc94f8b39bda216c0ed143eaac36912b
RemcosRAT
736bd7b09aa1e987edac64868cc8e5db0d86e709652e0588e2023d052f3def8f
RemcosRAT
7a6f6659840dc30d797d816e1b2bbeb847c36c2e330fe45369b9037a113e8bc6
RemcosRAT
a0e87c60c05c9b9a184ad81e279fabb2e997ab1d79cba0248548d846ecab8510
RemcosRAT
b530ffc8af72cb51943f2fb8f38bc778c4544f57b61de593960dd4a97327ca64
RemcosRAT
bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d
RemcosRAT
ca60958a09d1cd5817504857d90b846a9ce6f6ee1bed7686318b3741108b709c
RemcosRAT
+ 934 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/201023-ycwtm2n2yn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
uzbektourism8739.ddns.net:4354
Unpacked files
SH256 hash:
5fda7ee9bc5175075ee399ebf129d02f46eee3955ec06d359409e913ba7612d7
MD5 hash:
a10645a9d67ce46819443318e9b3063c
SHA1 hash:
a1ba5cfd0eb7fda77e513e3cc5c647baba61e29e
Link:
https://www.unpac.me/results/53c2b98a-85f0-4a8d-b00e-2d9442b050fa/
SH256 hash:
2b0be46b7ab1781db82924b3f0f31659582d19ce73aa662f91c1f1f0d959a4a0
MD5 hash:
52a81b1fb1f5bb03c46de4e3ba9ca12c
SHA1 hash:
d60f162b17862251d6ae3dc9155809d4a6e43ba5
Link:
https://www.unpac.me/results/53c2b98a-85f0-4a8d-b00e-2d9442b050fa/
SH256 hash:
b5e21b0e89bc5ee32b10f40476f6d609be80a4f9e6acc8af755485ae12536c1c
MD5 hash:
a5d4c7d46cf8b5a9598dea83ab8f0622
SHA1 hash:
96caacc447f0d9a50fc901cc86db5806455f4d5d
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/53c2b98a-85f0-4a8d-b00e-2d9442b050fa/
SH256 hash:
5fcc312a31029c692e592e1b70ec22e1008cfb3df910ab2fec80a193d420fe08
MD5 hash:
71afa50a017808b5526c81bfcd0a1683
SHA1 hash:
77643a9ed9ab9a1a627abc2b6e3c77766610d8b6
Link:
https://www.unpac.me/results/53c2b98a-85f0-4a8d-b00e-2d9442b050fa/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5fcc312a31029c692e592e1b70ec22e1008cfb3df910ab2fec80a193d420fe08

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

File information

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

Malspam

RemcosRAT

iso e032f9a2df3b1da692dfca8d6bc256c29a8294f5d6fd0ace335e595068b5f0c5

RemcosRAT

Executable exe 5fcc312a31029c692e592e1b70ec22e1008cfb3df910ab2fec80a193d420fe08

(this sample)

  
Dropped by
MD5 1094148b71f40b91e99b252e834e76ed
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e032f9a2df3b1da692dfca8d6bc256c29a8294f5d6fd0ace335e595068b5f0c5
Cape
Cape
https://www.capesandbox.com/analysis/75114/

Comments