MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7f4245d63e1dd21c5af3e0ddf682ac517eda484bf6650f3e0d5d856f4cc68fa. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7f4245d63e1dd21c5af3e0ddf682ac517eda484bf6650f3e0d5d856f4cc68fa
SHA3-384 hash: f0e990dcce3a54bf4533c81ab4e3ee10ff835ed7f6da43c4c28e5d258a9b6c581e3b2a66bd843b470933375d0f6efc3a
SHA1 hash: 204223344d400ccad7f29a41d677755e5890395c
MD5 hash: b4b8bccd580837d9a1086debe48ccd7e
humanhash: glucose-alabama-nuts-bakerloo
File name:b4b8bccd580837d9a1086debe48ccd7e.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:484'958 bytes
First seen:2021-10-09 15:11:10 UTC
Last seen:2021-10-09 16:22:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 12288:/x+43HoSOvIBUuchV8jkS3KRz7525QJbrSu5APB4wv:/0437FkNz7StBLv
TLSH T112A42343B3C6D8F3D5CF06B54584AA72F2BB8B1945130F16E7551F3ABC8824B9A10F96
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
289
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b4b8bccd580837d9a1086debe48ccd7e.exe
Verdict:
Malicious activity
Analysis date:
2021-10-09 15:20:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0f7ef4aa-aef9-4c7f-b1aa-7f2fa04f9145

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/196307/
Detection(s):
SecuriteInfo.com.Dropped.Trojan.GenericKDZ.78799.16868.27938.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
60%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/6161b1447b67fa0cf5175701/reports/e506d8b2-ecaf-4ca0-a6dd-9a6c52f34a16/overview
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a7f4245d63e1dd21c5af3e0ddf682ac517eda484bf6650f3e0d5d856f4cc68fa/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-10-09 15:12:08 UTC
AV detection:
12 of 28 (42.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u72cixld4hosdrnphyg562bkyul63jeex5tfb47a2xmfn5gmnd5a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:netgeneration persistence rat
Link:
https://tria.ge/reports/211009-sk6qcafcgl/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Program crash
Adds Run key to start application
Deletes itself
Loads dropped DLL
Adds policy Run key to start application
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
Venonletmonitprradministratioran.loseyourip.com:24091
Unpacked files
SH256 hash:
ec4c0c71f226762c42558828098477cfc7c8304c6d712e25e414cd72c576ab86
MD5 hash:
dacf6dbc448c75dc6d9f75c5f39140ab
SHA1 hash:
3c49cfd2242307743d8c44d7b3c583017f2008ac
Link:
https://www.unpac.me/results/6c15fa4a-7939-4ffc-98eb-a14760af024a/
SH256 hash:
a7f4245d63e1dd21c5af3e0ddf682ac517eda484bf6650f3e0d5d856f4cc68fa
MD5 hash:
b4b8bccd580837d9a1086debe48ccd7e
SHA1 hash:
204223344d400ccad7f29a41d677755e5890395c
Link:
https://www.unpac.me/results/6c15fa4a-7939-4ffc-98eb-a14760af024a/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a7f4245d63e1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.37
Link:
https://yomi.yoroi.company/submissions/a7f4245d63e1dd21c5af3e0ddf682ac517eda484bf6650f3e0d5d856f4cc68fa

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule

File information

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

Web download

RemcosRAT

Executable exe a7f4245d63e1dd21c5af3e0ddf682ac517eda484bf6650f3e0d5d856f4cc68fa

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1660752/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/196307/

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