MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b6a2988b79150655b57d5df600c7c41fd6aa6bb58a4fe747e4d5fdddd641f8c. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b6a2988b79150655b57d5df600c7c41fd6aa6bb58a4fe747e4d5fdddd641f8c
SHA3-384 hash: bf253d2b94dbf7b5e50f2a52e430b1844cc923fa90b1a6c39fd306271755159ad4667af326c381363687d89a5781a919
SHA1 hash: 51a52a391c24cc1b2f5569c81e4318a9080172f1
MD5 hash: 932fe4709953931599cc6dd849fe1874
humanhash: seventeen-grey-yankee-nine
File name:Cobro Juridico_075668325584_526275704_126342146020588310_19956328_09723861113279491_2015318_424058177822_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:558'080 bytes
First seen:2020-08-28 05:46:32 UTC
Last seen:2020-08-28 07:04:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:5F9lpTh30iIkATwRflcYcng2XLVE3CRis/v5ifiugRkeN:5F9lpTh3nETAfyYl2pEyos/
Threatray 765 similar samples on MalwareBazaar
TLSH 09C478D51054169294772EE035B2C3230AE1D2BDFC14BF1BEA8BF5BA1AD6F4F8902D46
Reporter abuse_ch
Tags:ESP exe geo RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: NAM12-BN8-obe.outbound.protection.outlook.com
Sending IP: 40.92.21.25
From: Diesel Unidos Ltda <dieselunidos@hotmail.com>
Subject: COBRO JURIDICO SERFINANZA.
Attachment: Cobro Juridico_075668325584_526275704_126342146020588310_19956328_09723861113279491_2015318_42405817 (contains "Cobro Juridico_075668325584_526275704_126342146020588310_19956328_09723861113279491_2015318_424058177822_pdf.exe")

RemcosRAT C2:
recuperaciondecartera.website:6790

Intelligence

File Origin
# of uploads :
2
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/52162/
Detection(s):
SecuriteInfo.com.Generic.mg.932fe47099539315.3523.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/453189
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
Contains functionalty to change the wallpaper
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
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 278964 Sample: 7822_pdf.exe Startdate: 28/08/2020 Architecture: WINDOWS Score: 100 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 5 other signatures 2->52 10 7822_pdf.exe 2 2->10         started        13 PXServiceNet.exe 2 2->13         started        15 PXServiceNet.exe 2 2->15         started        process3 signatures4 54 Contains functionalty to change the wallpaper 10->54 56 Contains functionality to steal Chrome passwords or cookies 10->56 58 Contains functionality to capture and log keystrokes 10->58 62 2 other signatures 10->62 17 7822_pdf.exe 4 5 10->17         started        20 7822_pdf.exe 10->20         started        60 Injects a PE file into a foreign processes 13->60 22 PXServiceNet.exe 13->22         started        24 PXServiceNet.exe 15->24         started        process5 file6 38 C:\Users\user\AppData\...\PXServiceNet.exe, PE32 17->38 dropped 40 C:\Users\...\PXServiceNet.exe:Zone.Identifier, ASCII 17->40 dropped 26 wscript.exe 1 17->26         started        process7 process8 28 cmd.exe 1 26->28         started        process9 30 PXServiceNet.exe 2 28->30         started        33 conhost.exe 28->33         started        signatures10 64 Multi AV Scanner detection for dropped file 30->64 66 Contains functionalty to change the wallpaper 30->66 68 Machine Learning detection for dropped file 30->68 70 3 other signatures 30->70 35 PXServiceNet.exe 2 4 30->35         started        process11 dnsIp12 42 recuperaciondecartera.website 186.169.51.45, 6790 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 35->42 44 192.168.2.1 unknown unknown 35->44
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b6a2988b79150655b57d5df600c7c41fd6aa6bb58a4fe747e4d5fdddd641f8c/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-08-28 02:21:12 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnvctcfxsfigkw2x2xpwadd4ih6wvjv3lcsp45d6jvp53xled6ga._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
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RemcosRAT
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3bdfaf82d5d56f2546be44b3355f8d72cc0508984586e0fba3d704a5adabf7d1
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64ba0f4265f9ed3f3f9315ee0256b360827074d5f898a7eb07ed98dd5f7fec7e
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970ffc480d61b37737f34ddf738e257a99162cce8338f7c59fdd4ab995ae9dfc
RemcosRAT
b3ae13e392ebe3eec95949395786577344472af7588ed1db4577c597a417e8a4
RemcosRAT
c8c1e04edd5c422d065e27a3a73931d373de200419cd9ba649fdfadee686e5f2
RemcosRAT
d69aa1932b2e702e5065ee19da9fc9cf2b05e7dbaa617141b14eaa501a14955e
RemcosRAT
+ 755 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200828-lsfhdyad46/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
recuperaciondecartera.website:6790
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1b6a2988b79150655b57d5df600c7c41fd6aa6bb58a4fe747e4d5fdddd641f8c

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: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 5142b3e0ec0454554c7d99d26a090f1f26dd4f7cc49e94be312f765231d26f09

RemcosRAT

Executable exe 1b6a2988b79150655b57d5df600c7c41fd6aa6bb58a4fe747e4d5fdddd641f8c

(this sample)

  
Dropped by
MD5 ddefd73748d4095c67649bd904f8dfee
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/52162/
  
Dropped by
SHA256 5142b3e0ec0454554c7d99d26a090f1f26dd4f7cc49e94be312f765231d26f09

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