MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ffbc5e54216b20404fd721b3ceab3b8b078dfbba0f42376223c37e34ef4fbf23. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ffbc5e54216b20404fd721b3ceab3b8b078dfbba0f42376223c37e34ef4fbf23
SHA3-384 hash: 7188ce874cbca355f9d190f178935b7754b9440620fe2af78736087297c2bee8ec5d23741ee11ccf502950720c450beb
SHA1 hash: 298a8a897725749864d8650c1d5d23bbcddb73a7
MD5 hash: 3368d7af54523d7dc1901ab5d1b40a9b
humanhash: india-three-stairway-music
File name:3368d7af54523d7dc1901ab5d1b40a9b
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:666'112 bytes
First seen:2021-11-15 09:14:58 UTC
Last seen:2021-11-15 11:14:06 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 12288:0RWzQhIWX7jDWthSgsxt0XTFH4eQqvCJk8WfXRZDTtc:PpthSgsgTFH4ePvCJk8yLDTy
Threatray 356 similar samples on MalwareBazaar
TLSH T1E1E47D5822E49E6FD0AE03BCE0A94514D3F4F511A647E71F1FD0A1B82CB73A2CD456AB
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/205851/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.42063.29490.24193.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Launching cmd.exe command interpreter
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6192251f3edf00a722d51230/reports/07c730c2-ccf2-4c67-9b43-da49f9b78f3c/overview
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/d937d801-8312-4397-9e11-8cdd60c72daa
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/889271
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
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 steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an autostart registry key pointing to binary in C:\Windows
Detected Remcos RAT
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
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
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 dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 521753 Sample: 6Xzgfme0z6 Startdate: 15/11/2021 Architecture: WINDOWS Score: 100 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for dropped file 2->78 80 11 other signatures 2->80 11 6Xzgfme0z6.exe 3 2->11         started        15 Windows NT session.exe 2 2->15         started        17 Windows NT session.exe 2 2->17         started        process3 file4 66 C:\Users\user\AppData\...\6Xzgfme0z6.exe.log, ASCII 11->66 dropped 92 Contains functionality to detect virtual machines (IN, VMware) 11->92 94 Contains functionality to steal Chrome passwords or cookies 11->94 96 Contains functionality to capture and log keystrokes 11->96 102 2 other signatures 11->102 19 6Xzgfme0z6.exe 1 5 11->19         started        98 Drops executables to the windows directory (C:\Windows) and starts them 15->98 100 Injects a PE file into a foreign processes 15->100 23 Windows NT session.exe 15->23         started        25 Windows NT session.exe 17->25         started        signatures5 process6 file7 62 C:\Windows\...\Windows NT session.exe, PE32 19->62 dropped 64 C:\...\Windows NT session.exe:Zone.Identifier, ASCII 19->64 dropped 84 Creates an autostart registry key pointing to binary in C:\Windows 19->84 27 cmd.exe 1 19->27         started        30 cmd.exe 1 19->30         started        signatures8 process9 signatures10 86 Uses ping.exe to sleep 27->86 32 Windows NT session.exe 3 27->32         started        36 PING.EXE 1 27->36         started        39 conhost.exe 27->39         started        88 Uses cmd line tools excessively to alter registry or file data 30->88 90 Uses ping.exe to check the status of other devices and networks 30->90 41 conhost.exe 30->41         started        43 reg.exe 1 30->43         started        process11 dnsIp12 60 C:\Users\user\...\Windows NT session.exe.log, ASCII 32->60 dropped 72 Injects a PE file into a foreign processes 32->72 45 Windows NT session.exe 1 4 32->45         started        49 Windows NT session.exe 32->49         started        68 127.0.0.1 unknown unknown 36->68 file13 signatures14 process15 dnsIp16 70 yjune2021.duckdns.org 194.5.97.131, 3030, 49762 DANILENKODE Netherlands 45->70 104 Detected Remcos RAT 45->104 106 Installs a global keyboard hook 45->106 51 cmd.exe 1 45->51         started        54 iexplore.exe 45->54         started        signatures17 process18 signatures19 82 Uses cmd line tools excessively to alter registry or file data 51->82 56 conhost.exe 51->56         started        58 reg.exe 1 51->58         started        process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ffbc5e54216b20404fd721b3ceab3b8b078dfbba0f42376223c37e34ef4fbf23/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-15 09:12:18 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
27bcc1c0158070cc8702bcb31fc4d675d13164422bcc780eac92d8fe0f82319c
RemcosRAT
3ba791b1f4e43ad7fc18ae7ab47ee3580c07014f774940af3af7ad6f962e6243
RemcosRAT
4a87512a48ce1d4b32e3a86365697f92b16d6637c9df9cb48b217b218c199446
RemcosRAT
62a722ed154c727e00114a8f5adaddf55b14ecd259b139f70d2631a65e5be661
RemcosRAT
80524e38d83418165e3b94d048ce7aacce3f5ac2f51968c3aea368784704b1f2
RemcosRAT
8c28be8d03e03cc453d1d00056cc6e317b73eec62cee2f6eba7d8dcd72cffd03
RemcosRAT
98c5215393b361836966cd6fa42a5a6381f7f9a5f190070c0c6790fe7c374220
RemcosRAT
9ffff542424c27e44cd1c0ae15166fbd66f2802dd41728b55ebbf0f812d10952
RemcosRAT
e56c6cd91b5f5a7d149056d6a40c5e6706e42dffe1abc66e2d3d4382c40dbbfb
RemcosRAT
ebc008a7b326afef547049414a909b2120e6e09b560c67e4b79d173195180691
RemcosRAT
+ 346 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:oct end brand:microsoft evasion persistence phishing rat trojan
Link:
https://tria.ge/reports/211115-k7xf7aefgj/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Modifies registry key
Runs ping.exe
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Detected potential entity reuse from brand microsoft.
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
UAC bypass
Malware Config
C2 Extraction:
yjune2021.duckdns.org:3030
Unpacked files
SH256 hash:
86fe170cc6dd3a576807c1192a06ead68bf210f9ccd14f1a81d4f44c2dbcc25f
MD5 hash:
bf5c170790a9378101dbc312303925e3
SHA1 hash:
bddaf21c02ba5cec7c4dfd1b1f289e23714a8ba8
Link:
https://www.unpac.me/results/953fa4a9-1abb-4fd4-98c0-cfa17de49996/
SH256 hash:
8649d4e818eed47bf09f07ec9b503f838a6e80cb2cb412515bc0a9ef7aa990d1
MD5 hash:
2671896f4a2d332964e4b4a59331874e
SHA1 hash:
4a9db63f54ff60e0959c71aac92b04009f7ce80b
Link:
https://www.unpac.me/results/953fa4a9-1abb-4fd4-98c0-cfa17de49996/
SH256 hash:
5d299cfa7601a5dfd635eb1326e4d0998958348d63914d780b5aea956e0ef3f5
MD5 hash:
a4a54b939ce5c2e48feceefa263d524b
SHA1 hash:
116c73b7a370f78dd0030a7c5cb8c1efa95c8477
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/953fa4a9-1abb-4fd4-98c0-cfa17de49996/
SH256 hash:
ffbc5e54216b20404fd721b3ceab3b8b078dfbba0f42376223c37e34ef4fbf23
MD5 hash:
3368d7af54523d7dc1901ab5d1b40a9b
SHA1 hash:
298a8a897725749864d8650c1d5d23bbcddb73a7
Link:
https://www.unpac.me/results/953fa4a9-1abb-4fd4-98c0-cfa17de49996/
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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.

Web download

RemcosRAT

Executable exe ffbc5e54216b20404fd721b3ceab3b8b078dfbba0f42376223c37e34ef4fbf23

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/205851/
  
URLhaus
https://urlhaus.abuse.ch/url/1788030/

Comments


Avatar
zbet commented on 2021-11-15 09:15:00 UTC

url : hxxp://kizitox.ga/chungzx.exe