MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8ff3d012ca9f71c55c6de7f56de2aa6900612f59171f2aa8e02237e28a70a48. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8ff3d012ca9f71c55c6de7f56de2aa6900612f59171f2aa8e02237e28a70a48
SHA3-384 hash: c90b7ad4e50504e3824a1719d30449c57c63e199a631fe9ebc79fc408105c674d0f402e089629f0f268312620f48cb49
SHA1 hash: b1e5328c3bcd15d7be580b3b5fcac3f7c2392ddf
MD5 hash: 902ecb364fbb412f60ee41605a5ffa8e
humanhash: beryllium-early-sixteen-burger
File name:902ecb364fbb412f60ee41605a5ffa8e.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:474'112 bytes
First seen:2022-01-05 08:19:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f15bed3346039b42bc33c9080047f8c (26 x RemcosRAT)
ssdeep 12288:iegN0jfYLclGb0bVT6e+MT2MffZS/gaSYo:ENywLclGIeMT2MXZRaSV
Threatray 901 similar samples on MalwareBazaar
TLSH T176A49D11B9C1C032D17252700D29FB759AFCBC302935597BB3DA5D9ABE700C1BB2A6A7
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://f0616073.xsph.ru/Music.exe
Verdict:
Suspicious activity
Analysis date:
2022-01-05 03:38:20 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/5cf18b58-c750-4cee-ac4d-b9502c98f636

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/217398/
Detection(s):
Win.Trojan.Remcos-9753190-0
Create hunting rule

Win.Trojan.Remcos-9841897-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
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
Creating a window
Running batch commands
Setting a keyboard event handler
Launching a process
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware keylogger
Link:
https://www.filescan.io/uploads/61d554b9bfe53d318f273bb8/reports/c06ef5ec-1584-40f4-85c6-f5681bfcd3dc/overview
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/b34847c0-92a9-4304-bd0d-7a256a8f2490
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/915708
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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
Deletes itself after installation
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Suspicious Svchost Process
Sigma detected: WScript or CScript Dropper
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 548187 Sample: JGqdzO67fp.exe Startdate: 05/01/2022 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 9 other signatures 2->47 9 JGqdzO67fp.exe 4 5 2->9         started        13 Music.exe 2->13         started        15 Music.exe 2->15         started        process3 file4 31 C:\Users\user\AppData\Roaming\...\Music.exe, PE32 9->31 dropped 33 C:\Users\user\...\Music.exe:Zone.Identifier, ASCII 9->33 dropped 35 C:\Users\user\AppData\Local\...\install.vbs, data 9->35 dropped 57 Contains functionality to steal Chrome passwords or cookies 9->57 59 Contains functionality to inject code into remote processes 9->59 61 Contains functionality to steal Firefox passwords or cookies 9->61 63 Delayed program exit found 9->63 17 wscript.exe 1 9->17         started        signatures5 process6 signatures7 39 Deletes itself after installation 17->39 20 cmd.exe 1 17->20         started        process8 process9 22 Music.exe 3 104 20->22         started        26 conhost.exe 20->26         started        dnsIp10 37 kent0mushinec0n3t.casacam.net 95.143.179.186, 32095 RHTEC-ASrh-tecIPBackboneDE Russian Federation 22->37 49 Multi AV Scanner detection for dropped file 22->49 51 Machine Learning detection for dropped file 22->51 53 Contains functionality to steal Chrome passwords or cookies 22->53 55 6 other signatures 22->55 28 svchost.exe 22->28         started        signatures11 process12 signatures13 65 Contains functionality to steal Chrome passwords or cookies 28->65 67 Contains functionality to steal Firefox passwords or cookies 28->67 69 Delayed program exit found 28->69
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8ff3d012ca9f71c55c6de7f56de2aa6900612f59171f2aa8e02237e28a70a48/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-01-04 18:34:00 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd7t2ajmvh3ryvog3z7vnxrku2iamexvsfy7fkuoairx4kfhbjea._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
18f51c19c22914e634d9cfcd86018e676e91d1c4a9293c247a3c9da84dce3f60
RemcosRAT
4a843bea699f8a40ae3b92c04e01139d61880ce1c519e369a966e814593d1d81
RemcosRAT
7a25e7868a967540a3dc4c8fa89f07444c4b714c4d2f3add235a7f0c33099c57
RemcosRAT
7f514ed5e1ec262953e6252a4089531c519e95d700c5808415b0f049fc59a5f0
RemcosRAT
ef6a74a99e6f3945eda8bd082a0adbcc2df584aff03838ed1b5face974a4a6b7
RemcosRAT
+ 891 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:music persistence rat
Link:
https://tria.ge/reports/220105-j8fpdsaah9/
Behaviour
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
kent0mushinec0n3t.casacam.net:32095
Unpacked files
SH256 hash:
b8ff3d012ca9f71c55c6de7f56de2aa6900612f59171f2aa8e02237e28a70a48
MD5 hash:
902ecb364fbb412f60ee41605a5ffa8e
SHA1 hash:
b1e5328c3bcd15d7be580b3b5fcac3f7c2392ddf
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/3a329796-88c7-4f8f-82e7-2289aa1674df/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b8ff3d012ca9f71c55c6de7f56de2aa6900612f59171f2aa8e02237e28a70a48

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 b8ff3d012ca9f71c55c6de7f56de2aa6900612f59171f2aa8e02237e28a70a48

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/217398/
  
URLhaus
https://urlhaus.abuse.ch/url/1951975/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1952364/

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