MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aafe9e6368558fe7cf16b19ba3579678cb4fbed684f7ef62fa63f61cbff3b896. 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: 11


Intelligence 11 IOCs 1 YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aafe9e6368558fe7cf16b19ba3579678cb4fbed684f7ef62fa63f61cbff3b896
SHA3-384 hash: 86d428f2aedcab1fe60682eeddcd5bdd8645b0e9944330938e843ef130eceb1d659866ca9a3e546ea719f5b6a40e735a
SHA1 hash: 4079d470499d35f20dd68a73ac212e3e67eab30d
MD5 hash: ca7e038044d7107b1c0c04f14fac12af
humanhash: yankee-utah-batman-bakerloo
File name:EXTRACTOSERFINANZA951519390158745693478909849.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:18'928 bytes
First seen:2021-06-15 03:01:56 UTC
Last seen:2021-06-15 03:36:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:3d6YzaeQrxLB4lfLqC4roBp8IYUiqhhgEXHT7hg:3UeQpOlfOHYOqhhgEnhg
Threatray 1'811 similar samples on MalwareBazaar
TLSH 3D826CD58AB45E21D899E37A9CF4C4043B323B4AF8A2DB7B4549404AD68374017BAF3D
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
186.169.54.239:1921

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
186.169.54.239:1921 https://threatfox.abuse.ch/ioc/114972/

Intelligence

File Origin
# of uploads :
2
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
EXTRACTOSERFINANZA951519390158745693478909849.exe
Verdict:
Malicious activity
Analysis date:
2021-06-15 03:04:53 UTC
Tags:
trojan rat remcos keylogger
Link:
https://app.any.run/tasks/932e446b-fac9-47b9-9d2d-59deb98dda7c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Variant.Bulz.516692.24524.1956.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
Moving a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Creating a process from a recently created file
Creating a window
Deleting a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Sending a TCP request to an infection source
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/f6431f96-c513-4529-817a-3d977067165f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/802094
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to hide a thread from the debugger
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
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
Sigma detected: WScript or CScript Dropper
Tries to evade analysis by execution special instruction which cause usermode exception
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 434490 Sample: EXTRACTOSERFINANZA951519390... Startdate: 15/06/2021 Architecture: WINDOWS Score: 100 96 Found malware configuration 2->96 98 Malicious sample detected (through community Yara rule) 2->98 100 Detected Remcos RAT 2->100 102 5 other signatures 2->102 11 EXTRACTOSERFINANZA951519390158745693478909849.exe 15 8 2->11         started        15 ProService.exe 2->15         started        17 ProService.exe 2->17         started        process3 dnsIp4 92 apdocroto.gq 104.21.14.60, 49710, 49720, 80 CLOUDFLARENETUS United States 11->92 114 Contains functionality to steal Chrome passwords or cookies 11->114 116 Contains functionality to capture and log keystrokes 11->116 118 Contains functionality to inject code into remote processes 11->118 124 2 other signatures 11->124 19 EXTRACTOSERFINANZA951519390158745693478909849.exe 4 5 11->19         started        22 WerFault.exe 9 11->22         started        25 cmd.exe 1 11->25         started        27 WerFault.exe 11->27         started        120 Hides threads from debuggers 15->120 122 Injects a PE file into a foreign processes 15->122 29 WerFault.exe 15->29         started        37 3 other processes 15->37 31 WerFault.exe 17->31         started        33 cmd.exe 17->33         started        35 ProService.exe 17->35         started        signatures5 process6 file7 78 C:\Users\user\AppData\...\ProService.exe, PE32 19->78 dropped 80 C:\Users\...\ProService.exe:Zone.Identifier, ASCII 19->80 dropped 82 C:\Users\user\AppData\Local\...\install.vbs, data 19->82 dropped 39 wscript.exe 1 19->39         started        104 Tries to evade analysis by execution special instruction which cause usermode exception 22->104 41 conhost.exe 25->41         started        43 timeout.exe 1 25->43         started        84 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 29->84 dropped 86 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 31->86 dropped 45 conhost.exe 33->45         started        47 timeout.exe 33->47         started        49 conhost.exe 37->49         started        51 timeout.exe 37->51         started        signatures8 process9 process10 53 cmd.exe 1 39->53         started        process11 55 ProService.exe 14 7 53->55         started        60 conhost.exe 53->60         started        dnsIp12 90 apdocroto.gq 55->90 88 C:\Users\user\AppData\...\uf4j3g0c.newcfg, XML 55->88 dropped 106 Multi AV Scanner detection for dropped file 55->106 108 Machine Learning detection for dropped file 55->108 110 Contains functionality to steal Chrome passwords or cookies 55->110 112 4 other signatures 55->112 62 ProService.exe 55->62         started        65 WerFault.exe 55->65         started        68 cmd.exe 55->68         started        70 WerFault.exe 55->70         started        file13 signatures14 process15 dnsIp16 94 databasenash2020.online 186.169.54.239, 1921, 49728 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 62->94 76 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 65->76 dropped 72 conhost.exe 68->72         started        74 timeout.exe 68->74         started        file17 process18
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aafe9e6368558fe7cf16b19ba3579678cb4fbed684f7ef62fa63f61cbff3b896/
Threat name:
ByteCode-MSIL.Downloader.Foold
Create hunting rule
Status:
Malicious
First seen:
2021-06-15 03:02:09 UTC
AV detection:
10 of 46 (21.74%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vl7j4y3ikwh6ptywwgn2gv4wpdfu7pwwqt366yx2mp3bzp7txcla._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
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RemcosRAT
+ 1'801 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:proservices persistence rat
Link:
https://tria.ge/reports/210615-7v2b2fb27e/
Behaviour
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
databasenash2020.online:1921
Unpacked files
SH256 hash:
aafe9e6368558fe7cf16b19ba3579678cb4fbed684f7ef62fa63f61cbff3b896
MD5 hash:
ca7e038044d7107b1c0c04f14fac12af
SHA1 hash:
4079d470499d35f20dd68a73ac212e3e67eab30d
Link:
https://www.unpac.me/results/5803fbe9-85b0-4e59-bc78-53b3f01c6f7f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/aafe9e6368558fe7cf16b19ba3579678cb4fbed684f7ef62fa63f61cbff3b896

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Comments