MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eb55fdd4d15cf3d07905037073a275ba2697e8fdb2a9f60c0b16cf70969cd476. 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: eb55fdd4d15cf3d07905037073a275ba2697e8fdb2a9f60c0b16cf70969cd476
SHA3-384 hash: ea11712d91b854d2b3a4c1a624c79194b5afaeff501697a7daca2009700777348edba45afb63946c3534ff464f8259ad
SHA1 hash: af8b9bebcf914532b0e01f1286536465aa6790a3
MD5 hash: b0da133665a2d0af6ac00040b1e872ce
humanhash: echo-bakerloo-finch-artist
File name:b0da133665a2d0af6ac00040b1e872ce.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:842'752 bytes
First seen:2021-07-04 06:55:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 24576:K7XHKkhu3vLUIggtePvyb2JUC41Lbbqj2WPngKhi2:KzqgI/MUtLbbHWYKz
TLSH DB05124425E953E6F1769BB612B93510C77CF622E61FEA4D0C8922CD0D22F81CECA797
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b0da133665a2d0af6ac00040b1e872ce.exe
Verdict:
Malicious activity
Analysis date:
2021-07-04 06:56:28 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/a2558ed0-fb0c-44ee-84f8-958a933175ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/169566/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.900-1.UNOFFICIAL
Create hunting rule

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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/42f465be-30ef-4ff9-b6ea-7bdf5e8b5619
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/811532
Signature
.NET source code contains very large strings
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 443943 Sample: XecEMJQdUx.exe Startdate: 04/07/2021 Architecture: WINDOWS Score: 100 59 sdegreenfieldsdeeenf.duckdns.org 2->59 61 fieldsdegreenf.duckdns.org 2->61 63 aaeeerbbbeee.duckdns.org 2->63 85 Multi AV Scanner detection for domain / URL 2->85 87 Found malware configuration 2->87 89 Malicious sample detected (through community Yara rule) 2->89 91 11 other signatures 2->91 14 XecEMJQdUx.exe 3 2->14         started        18 remcos.exe 2 2->18         started        20 remcos.exe 2 2->20         started        signatures3 process4 file5 57 C:\Users\user\AppData\...\XecEMJQdUx.exe.log, ASCII 14->57 dropped 101 Contains functionality to steal Chrome passwords or cookies 14->101 103 Contains functionality to inject code into remote processes 14->103 105 Contains functionality to steal Firefox passwords or cookies 14->105 107 Delayed program exit found 14->107 22 XecEMJQdUx.exe 4 5 14->22         started        109 Injects a PE file into a foreign processes 18->109 25 remcos.exe 18->25         started        27 remcos.exe 20->27         started        signatures6 process7 file8 51 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 22->51 dropped 53 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 22->53 dropped 55 C:\Users\user\AppData\Local\...\install.vbs, data 22->55 dropped 29 wscript.exe 1 22->29         started        process9 process10 31 cmd.exe 1 29->31         started        process11 33 remcos.exe 3 31->33         started        36 conhost.exe 31->36         started        signatures12 79 Multi AV Scanner detection for dropped file 33->79 81 Detected unpacking (creates a PE file in dynamic memory) 33->81 83 Injects a PE file into a foreign processes 33->83 38 remcos.exe 3 33->38         started        process13 dnsIp14 65 sdegreenfieldsdeeenf.duckdns.org 195.133.40.19, 49769, 49775, 49778 SPD-NETTR Russian Federation 38->65 67 fieldsdegreenf.duckdns.org 203.159.80.101, 49730, 49772, 49777 LOVESERVERSGB Netherlands 38->67 69 aaeeerbbbeee.duckdns.org 38->69 93 Writes to foreign memory regions 38->93 95 Allocates memory in foreign processes 38->95 97 Installs a global keyboard hook 38->97 99 Injects a PE file into a foreign processes 38->99 42 svchost.exe 38->42         started        signatures15 process16 process17 44 iexplore.exe 42->44         started        process18 46 iexplore.exe 44->46         started        49 iexplore.exe 44->49         started        dnsIp19 71 github.com 140.82.121.3, 443, 49737, 49738 GITHUBUS United States 46->71 73 avatars.githubusercontent.com 185.199.108.133, 443, 49744, 49745 FASTLYUS Netherlands 46->73 77 2 other IPs or domains 46->77 75 js.monitor.azure.com 49->75
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/eb55fdd4d15cf3d07905037073a275ba2697e8fdb2a9f60c0b16cf70969cd476/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-03 20:54:06 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5nk73vgrltz5a6ifanyhhitvxitjp2h5wku7mdalc3hxbfu42r3a._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:chrome persistence rat
Link:
https://tria.ge/reports/210704-hrvec5r41e/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
fieldsdegreenf.duckdns.org:6553
aaeeerbbbeee.duckdns.org:6553
sdegreenfieldsdeeenf.duckdns.org:6553
Unpacked files
SH256 hash:
ea2374c8bd34ec2b2c851ed8d3080da0dc7443fb013f771b8da2f134e95d7f4b
MD5 hash:
5a9a65ebf93ca99ce9ffa42f66170a93
SHA1 hash:
89057baf7d9321e027a0e07822de236e0a95f25c
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/5b476f22-e17c-44bc-ac4f-c8808196cf46/
Parent samples :
eb55fdd4d15cf3d07905037073a275ba2697e8fdb2a9f60c0b16cf70969cd476
d144ad20d75ca601f1189b61459dd9f330ca804db475823bd3e0bb3c0c89f4df
1a5fef4a3bbce0a3e77343c3794484a88a4cbe42a466e09749aba58ea081bd8d
16b834e15f6d2c66cb5f2b8b5acbe63830408847d3731d60625b57c1c0e9ad5a
cbe42b277b9e2d8ad915917a6c9a6cca9858efb70c342462a0a6701b39dda1fc
95d7c99af4ea07ed847623e0cb78145ac3e462b8fc294a62258d84cae3fe8af1
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/5b476f22-e17c-44bc-ac4f-c8808196cf46/
SH256 hash:
ba0d9eac4ac68acb73c428e51ec597604e0a3a9dac1c2daab465512f1d5743c7
MD5 hash:
303fb1821c2e900378c9a779acecdbdf
SHA1 hash:
6890af1dccf88fca1d7fbc5cde37a0f90867616a
Link:
https://www.unpac.me/results/5b476f22-e17c-44bc-ac4f-c8808196cf46/
SH256 hash:
eb55fdd4d15cf3d07905037073a275ba2697e8fdb2a9f60c0b16cf70969cd476
MD5 hash:
b0da133665a2d0af6ac00040b1e872ce
SHA1 hash:
af8b9bebcf914532b0e01f1286536465aa6790a3
Link:
https://www.unpac.me/results/5b476f22-e17c-44bc-ac4f-c8808196cf46/
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/eb55fdd4d15cf3d07905037073a275ba2697e8fdb2a9f60c0b16cf70969cd476

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

RemcosRAT

Executable exe eb55fdd4d15cf3d07905037073a275ba2697e8fdb2a9f60c0b16cf70969cd476

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/169566/
  
URLhaus
https://urlhaus.abuse.ch/url/1411476/
  
Delivery method
Distributed via web download

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