MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d61d1e99f05f85dbe885fc183a1b5fe81c0d47350868484186705d491a6577a. 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 9 File information Comments 1

SHA256 hash: 1d61d1e99f05f85dbe885fc183a1b5fe81c0d47350868484186705d491a6577a
SHA3-384 hash: dd01162b144000eea5b200b5a198852c37fe85538bd22ab3fc081e81001f3748517f501989b2f8f60dc389e3eb0dc04c
SHA1 hash: 362ed5f39490dba723b8a26d7c6e8ace29e44f3d
MD5 hash: 857d821d391c1fd9b19d12b06ae982e4
humanhash: lithium-september-december-purple
File name:INV WJD000030036000137675999, xlsx.scr
Download: download sample
Signature RemcosRAT
File size:917'136 bytes
First seen:2021-02-16 16:18:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 64b747126920f2db0c64929f48d320a0 (10 x RemcosRAT)
ssdeep 12288:DOzzcxrBWwx/vdym2RHAxMGD5usGjgnCoDaMycZ+HB9:DUzQJ1Z2xzGDAsG0ntDocGB9
Threatray 1'590 similar samples on MalwareBazaar
TLSH 4715B4F2E95A4E31F05B143DE58AF7341826BCF1391D84AA5EE87F09AAA331C35114B7
Reporter DFNCERT
Tags:RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV WJD000030036000137675999, xlsx.scr
Verdict:
Malicious activity
Analysis date:
2021-02-16 16:14:48 UTC
Tags:
trojan rat remcos

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Connection attempt to an infection source
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Androm
Status:
Malicious
First seen:
2021-02-16 16:19:06 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Unpacked files
SH256 hash:
6c5faf9784abeff03bdbe2522b9da9862ac8eb9d333f608f8ef28719565968df
MD5 hash:
dff8986eae6a2b85730955c35b506f1a
SHA1 hash:
0b20d24bdd350524c25f5d513d1b3f8e4315c989
SH256 hash:
1d61d1e99f05f85dbe885fc183a1b5fe81c0d47350868484186705d491a6577a
MD5 hash:
857d821d391c1fd9b19d12b06ae982e4
SHA1 hash:
362ed5f39490dba723b8a26d7c6e8ace29e44f3d
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:ach_RemcosRAT
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
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.

Malspam

RemcosRAT

Executable exe 1d61d1e99f05f85dbe885fc183a1b5fe81c0d47350868484186705d491a6577a

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments



Avatar
DFN-CERT commented on 2021-02-16 16:44:27 UTC

contained in 94318d424f481f076f7f64f9a8fb7f6a434909d487628e541a4628b7bbd295ed