MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c492932d633ea366294ad1c6b29169805e50338f522265d5d8531aff6d77882. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c492932d633ea366294ad1c6b29169805e50338f522265d5d8531aff6d77882
SHA3-384 hash: 66d8a90e56e018732315fa621a9f0f6e078cffb0df2ec3b18c6282a9a45f063141bc1b4049caf06c63d625e66ae8711e
SHA1 hash: 65e8b468d395053082def0a5018a334f6949916e
MD5 hash: a61b54096cce4880f200925c86b26dd0
humanhash: grey-minnesota-lemon-nitrogen
File name:a61b54096cce4880f200925c86b26dd0.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:36'864 bytes
First seen:2021-05-31 04:35:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d01b793cfeabb1210a9dfd924e5cbf0d (3 x RemcosRAT)
ssdeep 768:fNnmZ/8vPlLUdhfJ8v6utFpVsuRregrWChgzWb7Dsr1:1nwu4DejVLyOhgzWYr
Threatray 1'790 similar samples on MalwareBazaar
TLSH A2F2E145D283616CC678813E0053370DB23566DB2719C6BA0B94017DFFEBB0E3E2BA5A
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
192.99.27.223:1178

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
192.99.27.223:1178 https://threatfox.abuse.ch/ioc/67655/

Intelligence

File Origin
# of uploads :
1
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a61b54096cce4880f200925c86b26dd0.exe
Verdict:
Malicious activity
Analysis date:
2021-05-31 04:36:07 UTC
Tags:
rat remcos trojan
Link:
https://app.any.run/tasks/07c7877b-cc63-4a8c-a727-49605d1ffe9e

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/163302/
Detection(s):
Win.Malware.Azden-7587127-0
Create hunting rule

Win.Malware.Rescoms-6598304-0
Create hunting rule

Win.Malware.Zusy-6832224-0
Create hunting rule

Win.Trojan.Remcos-9753190-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process from a recently created file
Setting a keyboard event handler
Sending a custom TCP request
Sending a UDP request
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Enabling autorun
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.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/794441
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
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
Creates an undocumented autostart registry key
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses cmd line tools excessively to alter registry or file data
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 426837 Sample: WBjDCLqrZy.exe Startdate: 31/05/2021 Architecture: WINDOWS Score: 100 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Detected Remcos RAT 2->55 57 3 other signatures 2->57 9 WBjDCLqrZy.exe 4 4 2->9         started        13 XAMPPGift.exe 2->13         started        15 XAMPPGift.exe 2->15         started        17 2 other processes 2->17 process3 file4 43 C:\Users\...\XAMPPGift.exe:Zone.Identifier, ASCII 9->43 dropped 45 C:\Users\user\AppData\Roaming\XAMPPGift.exe, MS-DOS 9->45 dropped 75 Detected unpacking (changes PE section rights) 9->75 77 Creates an undocumented autostart registry key 9->77 79 Contains functionality to detect virtual machines (IN, VMware) 9->79 81 5 other signatures 9->81 19 cmd.exe 1 9->19         started        22 cmd.exe 1 9->22         started        signatures5 process6 signatures7 59 Uses ping.exe to sleep 19->59 24 XAMPPGift.exe 1 2 19->24         started        28 PING.EXE 1 19->28         started        30 conhost.exe 19->30         started        61 Uses cmd line tools excessively to alter registry or file data 22->61 63 Uses ping.exe to check the status of other devices and networks 22->63 32 conhost.exe 22->32         started        34 reg.exe 1 22->34         started        process8 dnsIp9 47 192.99.27.223, 1178, 49735 OVHFR Canada 24->47 67 Antivirus detection for dropped file 24->67 69 Multi AV Scanner detection for dropped file 24->69 71 Detected unpacking (changes PE section rights) 24->71 73 5 other signatures 24->73 36 cmd.exe 1 24->36         started        49 127.0.0.1 unknown unknown 28->49 signatures10 process11 signatures12 65 Uses cmd line tools excessively to alter registry or file data 36->65 39 conhost.exe 36->39         started        41 reg.exe 1 36->41         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c492932d633ea366294ad1c6b29169805e50338f522265d5d8531aff6d77882/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2021-05-29 06:22:00 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hressmwwgpvdmyuuvuogwkiwtac6kazy6urcmxk5quy275wxpcba._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0ef4ceb36c6bc5067390aa323ea7908be59da236315e41d0857d3426cfcc2ce1
RemcosRAT
1619a67b0219aac78f1e5e8ac86ec2cf68641ba65a19653fc176916275b6f6ad
RemcosRAT
210560d23e3c023c90bd24ed0d76c68732dc267277fc6adcc3c991cb611bb06a
RemcosRAT
22e473a7adb1bf3da0d6b900d5ec9f1b4a455bde122d31d6509b8d7b5bd9eab1
RemcosRAT
26ceb57e95635a8c48ff8dbe512475716cd7b4155de3f34cd2932f90a688a7d0
RemcosRAT
9d692165cbb8d2a181769b723e7300b02f534fec4563d4bd155b4c293d6ebe72
RemcosRAT
a81dc80c4e292405023f9c59504e55045ca754901cd06185d041642ce91a33b2
RemcosRAT
ab64843d1074c1091118c175f2ca85e43d66a7918faf479be9d6d2613583fce3
RemcosRAT
ba3e637da6f5ba0a5c1574f32d5e11ee595f7388b641762f4d11fddbc70dda79
RemcosRAT
fcae844517a704e1636de212ce4d80ca4fd1a191c00ed6465071c65608b05389
RemcosRAT
+ 1'780 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos evasion persistence rat trojan
Link:
https://tria.ge/reports/210531-p1wetjeybe/
Behaviour
Modifies registry key
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Modifies WinLogon
Loads dropped DLL
Adds policy Run key to start application
Executes dropped EXE
Modifies WinLogon for persistence
Remcos
UAC bypass
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.94
Link:
https://yomi.yoroi.company/submissions/3c492932d633ea366294ad1c6b29169805e50338f522265d5d8531aff6d77882

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
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:suspicious_packer_section
Create hunting rule
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/
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.

Cape
Cape
https://www.capesandbox.com/analysis/163302/

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