MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7ae5ac27e29e826ac3a5e407f1f760aa6d239e8de85280886adc7bc4113cace0. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7ae5ac27e29e826ac3a5e407f1f760aa6d239e8de85280886adc7bc4113cace0
SHA3-384 hash: ffaea69b9d4d7ba132c09d4fc365f524ada5fae7ecc2ee907981e0fa1c3d4c592b874c51dd7e1f40813c75163021dc1e
SHA1 hash: ba30f8bf70c111abd46dbae19779a74533a0a9d7
MD5 hash: eea563299caef713fadc6d4364a2ea9d
humanhash: magnesium-floor-violet-item
File name:ADJUNTO_EXTRACTO_6304436413791777271886_119133286117580343742032861_149881796216827597734120_3235296466249137363112_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'202'112 bytes
First seen:2020-11-26 06:52:09 UTC
Last seen:2020-11-26 08:42:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:z/zRmvI6+1kP9Kwo2G+ZPhzFqTBbRrOP9+HZHy9euNq7GqQ7w717:DQugo25LsY9ay9Ro7hr7
Threatray 1'174 similar samples on MalwareBazaar
TLSH 8CA505407C43341F79A902F89ED762E891CE710929781B396D6718BCD60E56BBCEF4B2
Reporter abuse_ch
Tags:exe Outlook RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: NAM02-CY1-obe.outbound.protection.outlook.com
Sending IP: 40.92.4.52
From: info. Extracto <electromacltda55@outlook.es>
Subject: EXTRACTO SERFINANZA.
Attachment: ADJUNTO_EXTRACTO_6304436413791777271886_119133286117580343742032861_149881796216827597734120_3235296 (contains "ADJUNTO_EXTRACTO_6304436413791777271886_119133286117580343742032861_149881796216827597734120_3235296466249137363112_pdf.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Deleting a recently created file
Running batch commands
DNS request
Connection attempt
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
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/547797
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
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 domain / URL
Multi AV Scanner detection for dropped file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 323005 Sample: 3112_pdf.exe Startdate: 26/11/2020 Architecture: WINDOWS Score: 100 55 databasepropersonombrecomercialideasearchwords.services 2->55 57 g.msn.com 2->57 61 Multi AV Scanner detection for domain / URL 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Detected Remcos RAT 2->65 67 4 other signatures 2->67 11 3112_pdf.exe 3 2->11         started        15 PxxoServicesNet.exe 2 2->15         started        17 PxxoServicesNet.exe 2 2->17         started        signatures3 process4 file5 53 C:\Users\user\AppData\...\3112_pdf.exe.log, ASCII 11->53 dropped 77 Contains functionality to steal Chrome passwords or cookies 11->77 79 Contains functionality to capture and log keystrokes 11->79 81 Contains functionality to inject code into remote processes 11->81 83 Contains functionality to steal Firefox passwords or cookies 11->83 19 3112_pdf.exe 4 5 11->19         started        22 3112_pdf.exe 11->22         started        85 Injects a PE file into a foreign processes 15->85 24 PxxoServicesNet.exe 15->24         started        26 PxxoServicesNet.exe 15->26         started        28 PxxoServicesNet.exe 15->28         started        30 PxxoServicesNet.exe 17->30         started        32 PxxoServicesNet.exe 17->32         started        signatures6 process7 file8 47 C:\Users\user\AppData\...\PxxoServicesNet.exe, PE32 19->47 dropped 49 C:\...\PxxoServicesNet.exe:Zone.Identifier, ASCII 19->49 dropped 34 wscript.exe 1 19->34         started        process9 process10 36 cmd.exe 1 34->36         started        process11 38 PxxoServicesNet.exe 3 36->38         started        42 conhost.exe 36->42         started        file12 51 C:\Users\user\...\PxxoServicesNet.exe.log, ASCII 38->51 dropped 69 Multi AV Scanner detection for dropped file 38->69 71 Machine Learning detection for dropped file 38->71 73 Contains functionality to steal Chrome passwords or cookies 38->73 75 3 other signatures 38->75 44 PxxoServicesNet.exe 2 4 38->44         started        signatures13 process14 dnsIp15 59 databasepropersonombrecomercialideasearchwords.services 186.169.81.240, 7580 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 44->59
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7ae5ac27e29e826ac3a5e407f1f760aa6d239e8de85280886adc7bc4113cace0/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-11-26 06:53:06 UTC
File Type:
PE (.Net Exe)
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pls2yj7ct2bgvq5f4qd7d53avjwshhun5bjibcdk3r54iej4vtqa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
4a94b062dbb9df940520146d100df5b019795d0f508d7ba89d24eb18725e1608
RemcosRAT
54c9967a2b3467f1a5961630d0bd429400e781de19866a383267c40e0f9acf2f
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
843326e8aabda8025975ae55e6d36fcd8bb79e2e1a5f25e86303b82f16c3bac5
RemcosRAT
b29880b2403337ef4fb3c644c4b033327cb6e2828d28799a0cc6a708cc0afaa4
RemcosRAT
b8bcf3a59b89b2ebc0fb7cfba5f8f726de83b08acd072b55c557cf89d16210c9
RemcosRAT
c5378608f92bd8f9e84214eb91c5cf33f8697b08f07f7caf6f1ee553b3fab650
RemcosRAT
f6c8f18b6a8db8307ea07c171236d118f91924e497027eeb305800ba2eee4fbe
RemcosRAT
+ 1'164 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201126-m38629gmwx/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
databasepropersonombrecomercialideasearchwords.services:7580
Unpacked files
SH256 hash:
6882cd40fd3e73cf06bd81fc1207365d55b094a23abc6029a524d936dcc967b2
MD5 hash:
29fa6372c7187c3308fc71e48173f264
SHA1 hash:
10a13983322dc301d5f159e4715cc0cda93714cc
Link:
https://www.unpac.me/results/b2e9bb68-2970-4fb2-a0b7-45bb1780a4b3/
SH256 hash:
99a6ba81c27cbc16a3e7137e44591499919e7e24f93ed005d64edd6f9493cd49
MD5 hash:
31bf75df29a67d423dfd1617e3c3df24
SHA1 hash:
62fcea3257b4b0b966214986712a5dd8cfa24771
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/b2e9bb68-2970-4fb2-a0b7-45bb1780a4b3/
SH256 hash:
7ae5ac27e29e826ac3a5e407f1f760aa6d239e8de85280886adc7bc4113cace0
MD5 hash:
eea563299caef713fadc6d4364a2ea9d
SHA1 hash:
ba30f8bf70c111abd46dbae19779a74533a0a9d7
Link:
https://www.unpac.me/results/b2e9bb68-2970-4fb2-a0b7-45bb1780a4b3/
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: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

rar 5cf2802d2b47a4c7bd44ecb9a814ded6cb14eef89d8551bdc5ac17d86081633a

RemcosRAT

Executable exe 7ae5ac27e29e826ac3a5e407f1f760aa6d239e8de85280886adc7bc4113cace0

(this sample)

  
Dropped by
MD5 7ab7e5712a30156693533ca131146851
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 5cf2802d2b47a4c7bd44ecb9a814ded6cb14eef89d8551bdc5ac17d86081633a
Cape
Cape
https://www.capesandbox.com/analysis/105605/

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