MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 46336468a43514fedfce240a5a3ca440c938d465c59fba6ce8d3b9383c5521cd. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 46336468a43514fedfce240a5a3ca440c938d465c59fba6ce8d3b9383c5521cd
SHA3-384 hash: a266d73ad4962f9d13579a1e9d060dfece90181a29487e0991d8cb65385e4562dc351064f6db369a6703f972eea20b1a
SHA1 hash: bbb48a60aa774829cd22d86dfe0530fb79b35b83
MD5 hash: 57cbb0c81ccbd1c74fa39bd6d1d32884
humanhash: alanine-rugby-social-enemy
File name:richiealvin.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:810'496 bytes
First seen:2021-01-20 14:46:11 UTC
Last seen:Never
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:RQDxnZJouRJSyBry3eF22QXBF1PNcjdrAl28SCo42Y1e0LwmmtWMq27PIIkOShIF:ER8jgYUGwmmWMrDiqvg
Threatray 1'440 similar samples on MalwareBazaar
TLSH FA05BD0D13044A6FE5787770C05E6B6003A06EBDBA23EB3ABDA07557FA627D1913353A
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
richiealvin.exe
Verdict:
Malicious activity
Analysis date:
2021-01-20 15:43:10 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/d147fe53-96a6-4f2d-a10c-88e16f450e69

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/114559/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun by creating a file
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:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/586280
Signature
.NET source code contains potential unpacker
Contains functionality to capture and log keystrokes
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
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 342175 Sample: richiealvin.exe Startdate: 20/01/2021 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Multi AV Scanner detection for dropped file 2->57 59 Sigma detected: Scheduled temp file as task from temp location 2->59 61 9 other signatures 2->61 11 richiealvin.exe 7 2->11         started        process3 file4 43 C:\Users\user\AppData\...\FTZWsOJmyD.exe, PE32 11->43 dropped 45 C:\Users\user\AppData\Local\...\tmp3C38.tmp, XML 11->45 dropped 47 C:\Users\user\AppData\...\richiealvin.exe.log, ASCII 11->47 dropped 71 Contains functionalty to change the wallpaper 11->71 73 Contains functionality to steal Chrome passwords or cookies 11->73 75 Contains functionality to capture and log keystrokes 11->75 77 2 other signatures 11->77 15 richiealvin.exe 3 5 11->15         started        18 schtasks.exe 1 11->18         started        signatures5 process6 file7 49 C:\Users\user\AppData\...\system32.exe, PE32 15->49 dropped 51 C:\Users\...\system32.exe:Zone.Identifier, ASCII 15->51 dropped 20 wscript.exe 1 15->20         started        22 conhost.exe 18->22         started        process8 process9 24 cmd.exe 1 20->24         started        process10 26 system32.exe 5 24->26         started        30 conhost.exe 24->30         started        file11 41 C:\Users\user\AppData\...\system32.exe.log, ASCII 26->41 dropped 63 Multi AV Scanner detection for dropped file 26->63 65 Detected unpacking (creates a PE file in dynamic memory) 26->65 67 Contains functionalty to change the wallpaper 26->67 69 3 other signatures 26->69 32 system32.exe 3 1 26->32         started        35 schtasks.exe 1 26->35         started        signatures12 process13 dnsIp14 53 91.193.75.185, 1989, 49727, 49730 DAVID_CRAIGGG Serbia 32->53 37 svchost.exe 32->37         started        39 conhost.exe 35->39         started        process15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/46336468a43514fedfce240a5a3ca440c938d465c59fba6ce8d3b9383c5521cd/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-01-20 05:22:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iyzwi2fegukp5x6oeqffupfeidetrvdfywp3u3hi2o4tqpcvehgq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
09be972858f7ed888f35048caf1f20787063e5b26777446b5ae5fa621fd577f4
RemcosRAT
0bd4a6df9d752c54589dca027df07822dc2595fa1a73a48be50e7f4e5e7116fe
RemcosRAT
0f5b2cff522a0ce0f6f7f811c88df8b6f7336304d25f2777cb53b23fbe1f76ac
RemcosRAT
3827b74e0bdab2de9236a5157690e90526a50d128e18f869b3d283c1a09069e9
RemcosRAT
3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda
RemcosRAT
3f584a0e45a98791e456118d425aed123eab4e8b6c053ff608c48e19da9a59c6
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
9696a44528dca762c88b2a88292d2fcb4a6ab16ce5ed1057a4faf2ba2c179d04
RemcosRAT
b8a2d4913e6415895cc93065001f694f0e6e46dfe42bf6ee885c6da54a4c6f9a
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
+ 1'430 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos ransomware rat
Link:
https://tria.ge/reports/210120-5848x79n1x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
91.193.75.185:1989
Unpacked files
SH256 hash:
e6e9898b120a9e7f826e8d0ba3f22cfb5e893e5c35d1ef13beb6900aa9ee246d
MD5 hash:
bfafe06f08c7cb7b0a0157668e220c7a
SHA1 hash:
59dafbf243e5c72e9a0ce50e0e2232c8d95197b7
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/e9f67ab3-40eb-49a9-a40c-f150ed5dbf6e/
SH256 hash:
dc25451a951428825dbba5252cfdcebb8b365f6308531a3bc12655875e5c7bda
MD5 hash:
a6eedaaa715d616e2d960cd9939352d1
SHA1 hash:
2e8921fb3799ebe4ae1479af69ea0482efd3e076
Link:
https://www.unpac.me/results/e9f67ab3-40eb-49a9-a40c-f150ed5dbf6e/
SH256 hash:
ebe07b31b2a0b7d5a7176d9f0689c782c6c60c4aac3d25a46b7fc3b4c8e9893e
MD5 hash:
ba43353cc37fda411e5998bb6c038247
SHA1 hash:
2a4ae28d87ac9f34118fdee8636c9e9f6cac36ec
Link:
https://www.unpac.me/results/e9f67ab3-40eb-49a9-a40c-f150ed5dbf6e/
SH256 hash:
46336468a43514fedfce240a5a3ca440c938d465c59fba6ce8d3b9383c5521cd
MD5 hash:
57cbb0c81ccbd1c74fa39bd6d1d32884
SHA1 hash:
bbb48a60aa774829cd22d86dfe0530fb79b35b83
Link:
https://www.unpac.me/results/e9f67ab3-40eb-49a9-a40c-f150ed5dbf6e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/46336468a43514fedfce240a5a3ca440c938d465c59fba6ce8d3b9383c5521cd

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: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: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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/114559/

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