MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3fceaabe401036d5b259a767747f86c6563db8d122c87e70506ce84ad622638. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e3fceaabe401036d5b259a767747f86c6563db8d122c87e70506ce84ad622638
SHA3-384 hash: e58225510760602e63763e9710c1fa42e77850d8e59e1b7b119b161625a6df2b38d596c241b513321dba20cda79c6a74
SHA1 hash: c738d07984d406be0aa87d36eae86e7fa81f68b7
MD5 hash: b83b2773148e40f003ffd62920a88ab1
humanhash: stream-early-autumn-neptune
File name:PO.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:171'520 bytes
First seen:2021-01-19 13:08:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 43f1b4fb55ffa0f3576d845e7070130e (5 x Loki, 5 x Formbook, 4 x AgentTesla)
ssdeep 3072:sPWrCpB4uD4AGLqMWF7Q72EtNSRdXOGYNlAqe0SpGoxCsjprLpxecf6Khg9/QZ:OWrCpB4xmFU7LtNSzXzYNi0Swexecf6S
Threatray 1'817 similar samples on MalwareBazaar
TLSH 73F3014EA1DCDE71D491DAF24F1640EE46EB10E7171301BBDBE0387A6AAE4C6E07166C
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: navrangmachinery.com
Sending IP: 104.129.27.155
From: info@navrangmachinery.com
Subject: PO
Attachment: PO.iso (contains "PO.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO.exe
Verdict:
Malicious activity
Analysis date:
2021-01-19 13:38:16 UTC
Tags:
rat remcos trojan keylogger stealer
Link:
https://app.any.run/tasks/003cd9b5-ffaf-46f2-8a17-ff62a7ed564d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/112905/
Detection(s):
Win.Malware.Atraps-9822567-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a file in the %temp% directory
Deleting a recently created file
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Sending a UDP request
Creating a process from a recently created file
Creating a window
DNS request
Reading critical registry keys
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
Stealing user critical data
Enabling autorun by creating a file
Result
Verdict:
MALICIOUS
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:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/585014
Signature
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
Detected unpacking (creates a PE file in dynamic memory)
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)
Maps a DLL or memory area into another process
Sigma detected: Remcos
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 341541 Sample: PO.exe Startdate: 19/01/2021 Architecture: WINDOWS Score: 100 72 Malicious sample detected (through community Yara rule) 2->72 74 Antivirus detection for dropped file 2->74 76 Antivirus / Scanner detection for submitted sample 2->76 78 7 other signatures 2->78 11 PO.exe 4 2->11         started        15 remcos.exe 1 2->15         started        17 remcos.exe 1 2->17         started        process3 file4 64 C:\Users\user\AppData\Local\Temp\...\file.exe, PE32 11->64 dropped 66 C:\...\631efcfa33984133a4d53cafd1db6808.xml, XML 11->66 dropped 96 Contains functionality to steal Chrome passwords or cookies 11->96 98 Contains functionality to capture and log keystrokes 11->98 100 Contains functionality to inject code into remote processes 11->100 102 Contains functionality to steal Firefox passwords or cookies 11->102 19 PO.exe 4 5 11->19         started        22 cmd.exe 1 11->22         started        24 remcos.exe 1 15->24         started        27 remcos.exe 15->27         started        104 Maps a DLL or memory area into another process 17->104 29 remcos.exe 17->29         started        signatures5 process6 file7 60 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->60 dropped 62 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->62 dropped 31 wscript.exe 1 19->31         started        33 conhost.exe 22->33         started        35 schtasks.exe 1 22->35         started        86 Maps a DLL or memory area into another process 24->86 37 remcos.exe 24->37         started        signatures8 process9 process10 39 cmd.exe 1 31->39         started        process11 41 remcos.exe 1 39->41         started        44 conhost.exe 39->44         started        signatures12 88 Antivirus detection for dropped file 41->88 90 Detected unpacking (creates a PE file in dynamic memory) 41->90 92 Tries to steal Mail credentials (via file registry) 41->92 94 5 other signatures 41->94 46 remcos.exe 2 3 41->46         started        process13 dnsIp14 70 eileenwmsscm.duckdns.org 185.140.53.234, 2558, 49734, 49735 DAVID_CRAIGGG Sweden 46->70 106 Injects a PE file into a foreign processes 46->106 50 remcos.exe 1 46->50         started        53 remcos.exe 13 46->53         started        56 remcos.exe 1 46->56         started        58 2 other processes 46->58 signatures15 process16 dnsIp17 80 Tries to steal Instant Messenger accounts or passwords 50->80 82 Tries to steal Mail credentials (via file access) 50->82 68 192.168.2.1 unknown unknown 53->68 84 Tries to harvest and steal browser information (history, passwords, etc) 53->84 signatures18
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e3fceaabe401036d5b259a767747f86c6563db8d122c87e70506ce84ad622638/
Threat name:
Win32.Trojan.Malrep
Create hunting rule
Status:
Malicious
First seen:
2021-01-19 13:09:11 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4p6ovk7eaebw2wzftj3hor7ynrswhw4nciwipzyfa3hijllcey4a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
07cb866df6df9ad51ce01426b0a0466834619e72c2653ff7c25320cc3c0a3f9a
RemcosRAT
138fa2cd5e89767fd71e4e32719550f54910e3ecc3f81fea5341321cc1b5d429
RemcosRAT
5ab68910c53ccaea0aa6c9e51fa8ad92433cba369163f99f636973b32abda555
RemcosRAT
763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b
RemcosRAT
bcacb340582be7a1764da1d56bd4e86d027987eb6a985ca973fa9d1509eb0863
RemcosRAT
c71eac19ad546b1d4e4ed84966072f03236e6d0ed99e6ce94bc19df2bac3b0e1
RemcosRAT
e85de613abef99e65212dcd6f8077b03763fa37fa81e7921907c9e9c3859b632
RemcosRAT
f05b74930aa9777625a66d2852fb0b690461ef0b5598d35b2d7959721456600d
RemcosRAT
f2a8ae610f1847b1344ffaa1c252543a9e4f5208b0644be9d8f5d7d6770c9ae2
RemcosRAT
f7e29cbf47c9804eb341836873ea6837be7a46639978f44d9ba2670d47e68d56
RemcosRAT
+ 1'807 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat spyware
Link:
https://tria.ge/reports/210119-97hfas8h7n/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
eileenwmsscm.duckdns.org:2558
Unpacked files
SH256 hash:
9b2b5e1ed885c75b68036310ff56829fc6a799b8b36bd9c403715ca1b45b5c3b
MD5 hash:
810c4d34d5bf2a1e4de3597ed0f4390e
SHA1 hash:
fd850ce99329c035e4e2db91256c5ed6b61b095e
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/389d91fb-bbf5-4abf-aaf2-0b5b9fffa71f/
SH256 hash:
e3fceaabe401036d5b259a767747f86c6563db8d122c87e70506ce84ad622638
MD5 hash:
b83b2773148e40f003ffd62920a88ab1
SHA1 hash:
c738d07984d406be0aa87d36eae86e7fa81f68b7
Link:
https://www.unpac.me/results/389d91fb-bbf5-4abf-aaf2-0b5b9fffa71f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e3fceaabe401036d5b259a767747f86c6563db8d122c87e70506ce84ad622638

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

iso 7019fa87cde1cfa1361c47108f1321ab5dd611c1104423c6d7df3d0052bf1643

RemcosRAT

Executable exe e3fceaabe401036d5b259a767747f86c6563db8d122c87e70506ce84ad622638

(this sample)

  
Dropped by
MD5 929a4a32dd214eeab18b716a05ea1323
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7019fa87cde1cfa1361c47108f1321ab5dd611c1104423c6d7df3d0052bf1643
Cape
Cape
https://www.capesandbox.com/analysis/112905/

Comments