MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b15744a72a1cc86bd567d3b96f3fecc02f23a3bcdcd8db310341defd91247c30. 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: 8


Intelligence 8 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b15744a72a1cc86bd567d3b96f3fecc02f23a3bcdcd8db310341defd91247c30
SHA3-384 hash: 3530d0c0709471630fd1239fd030f96c47c2a78415f87d4517824fbc430ff75279b0f7859883286ae965f265d11bc911
SHA1 hash: 8176836f590f1c40f95777a05ca3ff1d583239ee
MD5 hash: c00239e96907f75b034bee0d72806f3b
humanhash: mockingbird-one-yellow-neptune
File name:Purchase order PIA 503 20,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:671'032 bytes
First seen:2020-11-07 11:27:39 UTC
Last seen:2020-11-13 16:10:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:UBIXvqnEfmJ3VnvRjFSJdbhJq/oc8aOZOb/+L/2maGkQI+148tpQU/MPCgYbJQYY:E3lL+148tCSMPjOSO91FFSXnKqXMDC
Threatray 1'041 similar samples on MalwareBazaar
TLSH A1E496F450AF10A2F15B846436AEBDA402B2B9C7DBDA9D48037DF6311BBDB523B0464D
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail.seitel.biz
Sending IP: 156.54.7.82
From: Ludovica Esposito <caravell@caravel.it>
Subject: PURCHASE ORDER PIA 503/20
Attachment: Purchase order PIA 503 20,pdf.iso (contains "Purchase order PIA 503 20,pdf.exe")

RemcosRAT C2:
evangelical7395.ddns.net

Intelligence

File Origin
# of uploads :
4
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.DownLoader33.63577.9075.1786.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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/523838
Signature
.NET source code contains very large array initializations
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
Initial sample is a PE file and has a suspicious name
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: 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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b15744a72a1cc86bd567d3b96f3fecc02f23a3bcdcd8db310341defd91247c30/
Threat name:
ByteCode-MSIL.Trojan.APost
Create hunting rule
Status:
Malicious
First seen:
2020-11-06 14:31:17 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wflujjzkdtegxvlh2o4w6p7myaxshi543tmnwmidihpp3ejepqya._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
046ff9f608525faf76e353263ddad485e547ff4797b183ddd850f0f2c8209f91
RemcosRAT
1a1a49629b078b28852b0c9de34d8581ddb2c06bf09950bc4fc07262b65f72a7
RemcosRAT
4579780c18fb273fd0884237c7a4021dbbb38494194d8c1840449e8a62d29251
RemcosRAT
485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87
RemcosRAT
5fcc312a31029c692e592e1b70ec22e1008cfb3df910ab2fec80a193d420fe08
RemcosRAT
833b575dac3a049ede0d27e2ff801d2e8d647cf04006f0037e1a9c71d7c8ace4
RemcosRAT
ab9041fe7e0a4a439521d6eb01cc16d74c00a0427c86b067120ac453ba7329d9
RemcosRAT
b530ffc8af72cb51943f2fb8f38bc778c4544f57b61de593960dd4a97327ca64
RemcosRAT
d5e7d49983a219e75540be866377c4b283614a31e41f9e5223ab6ad18a1cfe61
RemcosRAT
e32decb9aac454a38a186b4f7bc59e471c78e2cf6a5fff25c0d8b68d1c46805c
RemcosRAT
+ 1'031 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201107-f5gkhkeabs/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
evangelical7395.ddns.net:6735
Unpacked files
SH256 hash:
12d27ab4a91bdb386aa9a169db0b095fa6b6d857e226fd28a1e3914dbb4f7fe3
MD5 hash:
59bc27db4dd00f8e7a0184c42295af4f
SHA1 hash:
0667871e58fae1ec99b8ce78a35ed2e62503ef57
Link:
https://www.unpac.me/results/de925921-07bb-48e5-a2cf-359daadb3362/
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/de925921-07bb-48e5-a2cf-359daadb3362/
SH256 hash:
ac2ecf6ad998eb875c9adc18dda0e0802186282532967f5abb9b3bbe179424b8
MD5 hash:
1490c7c0027d67f9fa9928beb700835f
SHA1 hash:
9f1ceaa1392ebf7e2a00e1df3b3deabbf415fa57
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/de925921-07bb-48e5-a2cf-359daadb3362/
SH256 hash:
b15744a72a1cc86bd567d3b96f3fecc02f23a3bcdcd8db310341defd91247c30
MD5 hash:
c00239e96907f75b034bee0d72806f3b
SHA1 hash:
8176836f590f1c40f95777a05ca3ff1d583239ee
Link:
https://www.unpac.me/results/de925921-07bb-48e5-a2cf-359daadb3362/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Embedded_PE
Create hunting rule
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

iso 6d90f81ac249da0b21b88657a85215b2ce065ca08347f526af6d5a39aa7b77f8

RemcosRAT

Executable exe b15744a72a1cc86bd567d3b96f3fecc02f23a3bcdcd8db310341defd91247c30

(this sample)

  
Dropped by
MD5 e0ceedf5ff7753dc9da8dafaa416521c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 6d90f81ac249da0b21b88657a85215b2ce065ca08347f526af6d5a39aa7b77f8

Comments