MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d
SHA3-384 hash: 56a6c4531cd37924653b4a7e0ea5676e35a3dbbf24404c4e43ace2843e8dd8c6b6011e6128e76bc897b17a1ebff01718
SHA1 hash: 3d818fe9b77e28e0a416a92e55c004483a80ec0d
MD5 hash: 6446d8fe5bbbdca34ccf9260accc8024
humanhash: india-triple-louisiana-carolina
File name:DHL Express Shipment Confirmation.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:774'144 bytes
First seen:2020-10-21 13:08:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9a9a604add49b2c4a1781d20e7247f0f (6 x Loki, 1 x RemcosRAT, 1 x AgentTesla)
ssdeep 12288:bvVpPk7WuYkn6Mhp5KuDHCsY3csg2+Ls5PFKuHd68sGZ8PFWuu7EMAc/x8pQHq:bDPk5lP/jDYfgFwVE8fOcuOAc/x8r
Threatray 921 similar samples on MalwareBazaar
TLSH 99F49EF3A2BD4837C163163D9C0B5764A935FE502E28F9862BF41C4C9F39A913D29297
Reporter abuse_ch
Tags:DHL exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: Dhl.com
Sending IP: 83.149.106.3
From: DHL EXPRESS DELIVERY <Billings21@Dhl.com>
Subject: DHL Express Shipment Confirmation For victim-email
Attachment: DHL Express Shipment Confirmation.zip (contains "DHL Express Shipment Confirmation.exe")

RemcosRAT C2:
kay34.duckdns.org:2267 (185.140.53.208)

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-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 :
1
# of downloads :
78
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/74135/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Sending a UDP request
DNS request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Sending a TCP request 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/505866
Signature
Contains functionality to capture and log keystrokes
Contains functionality to detect sleep reduction / modifications
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
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 301987 Sample: DHL Express Shipment Confir... Startdate: 21/10/2020 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Detected unpacking (changes PE section rights) 2->46 48 11 other signatures 2->48 10 DHL Express Shipment Confirmation.exe 2->10         started        13 remcos.exe 2->13         started        15 remcos.exe 2->15         started        process3 signatures4 50 Maps a DLL or memory area into another process 10->50 17 DHL Express Shipment Confirmation.exe 4 5 10->17         started        20 remcos.exe 13->20         started        22 remcos.exe 15->22         started        process5 file6 36 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 17->36 dropped 38 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 17->38 dropped 24 wscript.exe 1 17->24         started        process7 process8 26 cmd.exe 1 24->26         started        process9 28 remcos.exe 26->28         started        31 conhost.exe 26->31         started        signatures10 52 Multi AV Scanner detection for dropped file 28->52 54 Detected unpacking (changes PE section rights) 28->54 56 Detected unpacking (overwrites its own PE header) 28->56 58 6 other signatures 28->58 33 remcos.exe 2 3 28->33         started        process11 dnsIp12 40 kay34.duckdns.org 185.140.53.208, 2267, 49737 DAVID_CRAIGGG Sweden 33->40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-10-21 12:03:29 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x6snvkk2gazfhjc4yaszpup2ibawr64i4yt5yox2jm2urjx7re6q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
046ff9f608525faf76e353263ddad485e547ff4797b183ddd850f0f2c8209f91
RemcosRAT
1a1924da9d272ea46f8a0a62d7e2ecf01746e9a7621c8b1c36950788c3a3bd8c
RemcosRAT
3c1ce706aa7b96510a66e677037aa60b52ad2bbe1b02c2dc708e338842fe7e4a
RemcosRAT
3e306d7047d78c4f7381e51c0fa80b840e5fa76b14393195faea2791166671b5
RemcosRAT
485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87
RemcosRAT
65228df6e85371a2b4b1e5340f11e36cdc94f8b39bda216c0ed143eaac36912b
RemcosRAT
736bd7b09aa1e987edac64868cc8e5db0d86e709652e0588e2023d052f3def8f
RemcosRAT
7a6f6659840dc30d797d816e1b2bbeb847c36c2e330fe45369b9037a113e8bc6
RemcosRAT
b530ffc8af72cb51943f2fb8f38bc778c4544f57b61de593960dd4a97327ca64
RemcosRAT
ca60958a09d1cd5817504857d90b846a9ce6f6ee1bed7686318b3741108b709c
RemcosRAT
+ 911 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos persistence
Link:
https://tria.ge/reports/201021-8tr3r8fvsx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
kay34.duckdns.org:2267
Unpacked files
SH256 hash:
bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d
MD5 hash:
6446d8fe5bbbdca34ccf9260accc8024
SHA1 hash:
3d818fe9b77e28e0a416a92e55c004483a80ec0d
Link:
https://www.unpac.me/results/44d39ef9-388b-4e8f-a62d-f8f6153153bc/
SH256 hash:
3acc72dea587176d6c0803421a35be9d837e465501d048f2cad6ad79557e176b
MD5 hash:
8c572614ac7a04968c66a3828508b43e
SHA1 hash:
1f6864bf6b81feddec974bd8a8df161c7cda8a74
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/44d39ef9-388b-4e8f-a62d-f8f6153153bc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Lokibot
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d

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

File information

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

Malspam

RemcosRAT

zip 8c6ac1dad92d2ef64b46a4ef2e0661233286bcb1d4154b90af0bd6123f31290b

RemcosRAT

Executable exe bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d

(this sample)

  
Dropped by
MD5 63843f5469a33df1223381200fe33418
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/74135/
  
Dropped by
SHA256 8c6ac1dad92d2ef64b46a4ef2e0661233286bcb1d4154b90af0bd6123f31290b

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