MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f82ddb5a7484a583727029b8474105a7fa4af2f61f2bd0a71c4794e5aad39453. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f82ddb5a7484a583727029b8474105a7fa4af2f61f2bd0a71c4794e5aad39453
SHA3-384 hash: 4c85a9fc511948e62ef3b1f7409cd52fa52c039ae885d8ed9d6816f0a658d67cebedab832ed90f8c9dcf2db866accc88
SHA1 hash: 0e7d157df42bfce3629a890255f4863f49fa1d6e
MD5 hash: d33d2cc2bb1c1021b6342d926cf11116
humanhash: mango-earth-winter-mountain
File name:NEW INQUIRY 20210825.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'634'304 bytes
First seen:2021-08-25 07:11:01 UTC
Last seen:2021-08-25 13:49:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:kHF+2LKKTVqtzt+8RQsLhBN9aTom5OuayIimUYgKTPmC+4T3DJrtxi7AIEph88oL:k4EK+whf9aTXEualgQPy4T3trtpDWXx
Threatray 812 similar samples on MalwareBazaar
TLSH T18675AF25778077DAE8A50F728823268883F295472731F76F1CC567E89D31B1B872B663
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NEW INQUIRY 20210825.exe
Verdict:
Malicious activity
Analysis date:
2021-08-25 07:12:17 UTC
Tags:
trojan rat remcos keylogger
Link:
https://app.any.run/tasks/68cacd31-a06e-46bb-a023-e70fed123c54

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/182208/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
Creating a file in the %temp% directory
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Sending a UDP request
Launching the default Windows debugger (dwwin.exe)
DNS request
Connection attempt
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun
Result
Verdict:
UNKNOWN
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/644c6ffd-ed33-4826-a212-70e451c5b843
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/838820
Signature
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates an undocumented autostart registry key
Delayed program exit found
Detected Remcos RAT
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 471251 Sample: NEW INQUIRY 20210825.exe Startdate: 25/08/2021 Architecture: WINDOWS Score: 100 62 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 4 other signatures 2->68 8 NEW INQUIRY 20210825.exe 15 7 2->8         started        process3 dnsIp4 58 www.google.com 172.217.168.36, 443, 49697, 49704 GOOGLEUS United States 8->58 46 C:\Users\user\AppData\Roaming\MAINPROC.exe, PE32 8->46 dropped 48 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 8->48 dropped 50 C:\Users\...\MAINPROC.exe:Zone.Identifier, ASCII 8->50 dropped 52 C:\Users\...52EW INQUIRY 20210825.exe.log, ASCII 8->52 dropped 82 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->82 13 MAINPROC.exe 14 5 8->13         started        18 cmd.exe 1 8->18         started        file5 signatures6 process7 dnsIp8 60 www.google.com 13->60 54 C:\Users\user\AppData\Local\Temp\SMSS.exe, PE32 13->54 dropped 84 Multi AV Scanner detection for dropped file 13->84 86 Writes to foreign memory regions 13->86 88 Drops PE files with benign system names 13->88 90 2 other signatures 13->90 20 AddInProcess32.exe 2 2 13->20         started        24 SMSS.exe 13->24         started        26 SMSS.exe 13->26         started        32 4 other processes 13->32 28 reg.exe 1 1 18->28         started        30 conhost.exe 18->30         started        file9 signatures10 process11 dnsIp12 56 kashbilly2.ddns.net 79.134.225.95, 49718, 6060 FINK-TELECOM-SERVICESCH Switzerland 20->56 70 Contains functionalty to change the wallpaper 20->70 72 Contains functionality to steal Chrome passwords or cookies 20->72 74 Contains functionality to inject code into remote processes 20->74 80 3 other signatures 20->80 76 Multi AV Scanner detection for dropped file 24->76 34 SMSS.exe 24->34         started        36 SMSS.exe 26->36         started        78 Creates an undocumented autostart registry key 28->78 38 SMSS.exe 32->38         started        40 SMSS.exe 32->40         started        42 SMSS.exe 32->42         started        44 SMSS.exe 32->44         started        signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f82ddb5a7484a583727029b8474105a7fa4af2f61f2bd0a71c4794e5aad39453/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-08-25 07:12:06 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7aw5wwtuqssyg4tqfg4eoqifu75ev4xwd4v5bjy4i6kolkwtsrjq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
239d05f508f2055daa1e4bf62f465f3ccbe7104fcb3c98504630d40d37466e02
RemcosRAT
9ade8e3be001803151f0013e9e36c53ce9b8f7aed9841a8950084e396979b164
RemcosRAT
a09b27f0e56a772894ce2213d62e8411f163f98d9da988f2b8e0e57e591889c8
RemcosRAT
c7252a49ccd370842153de690f9ff8655abb16318c668a8a3deb006853530bdc
RemcosRAT
ca12d3f00e654a8c51e15c6eaed8330721e48f398f877fc0ed68a983d3191a37
RemcosRAT
f138fb2bb1b74757f02ed6159d3766cd5bbae760e04907ea7520bc09dd968783
RemcosRAT
f5d2a49f8800562ae2edb68fb838b64196844c2425fea90663baf4f7d7776f81
RemcosRAT
f77ee1da37991ac453867f3ec63c1e0d18f139d6585c5158fc92b78aa4f07b02
RemcosRAT
+ 802 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost agilenet persistence rat suricata
Link:
https://tria.ge/reports/210825-9hnr6er186/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Modifies WinLogon for persistence
Remcos
suricata: ET MALWARE Remocs 3.x Unencrypted Checkin
suricata: ET MALWARE Remocs 3.x Unencrypted Server Response
Malware Config
C2 Extraction:
kashbilly2.ddns.net:6060
Unpacked files
SH256 hash:
f82ddb5a7484a583727029b8474105a7fa4af2f61f2bd0a71c4794e5aad39453
MD5 hash:
d33d2cc2bb1c1021b6342d926cf11116
SHA1 hash:
0e7d157df42bfce3629a890255f4863f49fa1d6e
Link:
https://www.unpac.me/results/3fb88c1e-cd20-462e-8491-e00fdcba2b59/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/f82ddb5a7484a583727029b8474105a7fa4af2f61f2bd0a71c4794e5aad39453

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:AlternativesExample1
Create hunting rule
Rule name:AlternativesExample1
Create hunting rule
Rule name:pe_imphash
Create hunting rule
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.

Malspam

RemcosRAT

Executable exe f82ddb5a7484a583727029b8474105a7fa4af2f61f2bd0a71c4794e5aad39453

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/182208/

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