MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50
SHA3-384 hash: d0cfceb467d3f322069ff7fd879798565db61b9798d78ad8462407e7adf7faed84840dde4f3a8756b7c792451fb16bce
SHA1 hash: ed1cbd51bfdf169c779c4d2e513b9c9f84280091
MD5 hash: c813a9e8804b2ef30228904f0a72da27
humanhash: orange-ohio-happy-fifteen
File name:c813a9e8804b2ef30228904f0a72da27.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:901'120 bytes
First seen:2023-10-26 09:12:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:FTvQYzyNylikP9/omIRsbAEHeVL/evf6IKEWpbJ5:dZzSW1+NL/dWA
Threatray 2'758 similar samples on MalwareBazaar
TLSH T15415234536F81775E6FE2FF6ACB160111BBA73AA2D75D34C1D8940DB15A3B008B21B2B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
343
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
lokibot
Create hunting rule
ID:
1
File name:
New Text Document.exe
Verdict:
Malicious activity
Analysis date:
2023-10-26 08:33:03 UTC
Tags:
opendir loader sinkhole trojan lokibot stealer redline stealc lumma formbook xloader smoke autoit rat asyncrat remote amadey botnet spyware metamorfo oski
Link:
https://app.any.run/tasks/2d8e849b-d515-4912-9aac-fb95608252b1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Connecting to a non-recommended domain
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed remcos
Link:
https://www.filescan.io/uploads/653a2da0bc703e36b08e3f92/reports/73241d4d-7aee-4263-bef6-686d9a968b20/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/da52aea8-0d9d-481a-9f72-8ea0badd694f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1332561
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
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 / registry access)
Tries to steal Mail credentials (via file registry)
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1332561 Sample: HVuACIbZyx.exe Startdate: 26/10/2023 Architecture: WINDOWS Score: 100 25 29122021.sytes.net 2->25 27 geoplugin.net 2->27 39 Multi AV Scanner detection for domain / URL 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 11 other signatures 2->45 8 HVuACIbZyx.exe 3 2->8         started        signatures3 process4 signatures5 47 Contains functionality to bypass UAC (CMSTPLUA) 8->47 49 Tries to steal Mail credentials (via file registry) 8->49 51 Contains functionalty to change the wallpaper 8->51 53 7 other signatures 8->53 11 HVuACIbZyx.exe 3 15 8->11         started        process6 dnsIp7 29 29122021.sytes.net 79.110.62.77, 49710, 49712, 6110 LASOTELFR Germany 11->29 31 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 11->31 23 C:\ProgramData\remcos\logs.dat, data 11->23 dropped 55 Maps a DLL or memory area into another process 11->55 57 Installs a global keyboard hook 11->57 16 HVuACIbZyx.exe 1 11->16         started        19 HVuACIbZyx.exe 1 11->19         started        21 HVuACIbZyx.exe 2 11->21         started        file8 signatures9 process10 signatures11 33 Tries to steal Instant Messenger accounts or passwords 16->33 35 Tries to harvest and steal browser information (history, passwords, etc) 16->35 37 Tries to steal Mail credentials (via file / registry access) 19->37
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-10-26 04:06:47 UTC
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2p7s2zatem7m5monl4mvhu32mlsp2mri3sedgpiocl4izzdf7jia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3bdd69de010f0f5eab2291127a6645fb8ed19f279276a6e7bf1122cf1937d61c
RemcosRAT
4eecb3d02825158bc36d86c8d75f37137a11576eb8fb9fec7e592648fd369f96
RemcosRAT
6d69abf704c0ac0c71d7d35cc0eaa5b0ba230b7538ee159ad415b06798143c33
RemcosRAT
70844fa5991d0089d8e76bb510ba8aeaeb1f0f053741c5876b15c4ced5075dc9
RemcosRAT
81e133f9aae32be3ff7a818fe7fa37eea017740c139e825641cf50dfaaa2a0a9
RemcosRAT
a8c7f79f118f3ff57bef79b5877355adab4269c99a6c61dfca429a46ff0fb357
RemcosRAT
b09ad34d756d9477b24bca1cb4dfcc95e21aa67f72817560dba0d9042255bdca
RemcosRAT
be8ccfb19dab5c8d7b4273dc77b34c7ca0afea516e6bf85f607904345a3ad54f
RemcosRAT
d1e1c9332fa8a6bd045fd4ccfa11055a4e17d1cad72239aab2400870191c4185
RemcosRAT
d31044022de445b61ba735083a47c5fd1f4d5c8dfcf544da489572ce3fafdc79
RemcosRAT
+ 2'748 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:29122021 collection rat spyware stealer
Link:
https://tria.ge/reports/231026-k6q8safd9s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
29122021.sytes.net:6110
Unpacked files
SH256 hash:
44a8ceca90bca826bf2e7faf5f4fea24a30f97fe75f2553b7ae26784de8ea856
MD5 hash:
be8d0f301d6a450aa2d219470ded392d
SHA1 hash:
f075b8e525d2cb768f0ed4f07a34e35570b31b9a
Link:
https://www.unpac.me/results/1aeede34-363a-4ccf-859b-788c3c74b655/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/1aeede34-363a-4ccf-859b-788c3c74b655/
SH256 hash:
6ff0dbf9267942c3314cfd4aa0f10e8bbdf12efce14b1907ae45b2b1779208d1
MD5 hash:
df148a362f26a29e61672876c7466141
SHA1 hash:
b23092033ad493ff213d6cb70c20dafda89b474c
Link:
https://www.unpac.me/results/1aeede34-363a-4ccf-859b-788c3c74b655/
SH256 hash:
f1efd86756d2b913e17e6de502d9de494ffa89b503a209f4d82d204ad1d4be6b
MD5 hash:
7b44ded7282157013ab154538a36e760
SHA1 hash:
a239dc29c3d0f77b646ed0fd90b684417a68fb16
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/1aeede34-363a-4ccf-859b-788c3c74b655/
Parent samples :
d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50
f1efd86756d2b913e17e6de502d9de494ffa89b503a209f4d82d204ad1d4be6b
SH256 hash:
d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50
MD5 hash:
c813a9e8804b2ef30228904f0a72da27
SHA1 hash:
ed1cbd51bfdf169c779c4d2e513b9c9f84280091
Link:
https://www.unpac.me/results/1aeede34-363a-4ccf-859b-788c3c74b655/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d3ff2d641323/report/overview.html
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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
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 d3ff2d6413233eceb1cd5f1953d37a62e4fd3228dc88333d0e12f88ce465fa50

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2722095/
  
Delivery method
Distributed via web download

Comments