MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 00a43037570aef0f977589fa679bf79627d04890fabfca6c19ae2c2f851ef289. 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 YARA 9 File information Comments

SHA256 hash: 00a43037570aef0f977589fa679bf79627d04890fabfca6c19ae2c2f851ef289
SHA3-384 hash: 8ccf3d4c077f2a2448928aca6c3be06574535ae71f7cdd01c472ac438839c323cbfb9ad04c420352beaedfdfade899e8
SHA1 hash: 3f8224bcafcb3ada45e51904cec76985dc71492f
MD5 hash: 742d0fbf067bf70bb3857d52e32a14ee
humanhash: california-aspen-social-glucose
File name:742d0fbf067bf70bb3857d52e32a14ee.exe
Download: download sample
Signature RemcosRAT
File size:1'038'336 bytes
First seen:2020-12-18 08:54:46 UTC
Last seen:2020-12-18 10:50:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash cdf64ea0ccd201a7e5e892abc99bb67a (1 x RemcosRAT)
ssdeep 24576:kJGpYoJedYXwPDf476OJSeQPo30ILeZj3W82dTfh8A:p2YXJgPImjmVdDh
Threatray 1'268 similar samples on MalwareBazaar
TLSH DD259E22F2D38C77C0732A794C7BA7A2653ABF102D2458877BE84E4D5F35A8179162D3
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
dominoduck2102.duckdns.org:9403

Intelligence


File Origin
# of uploads :
2
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
742d0fbf067bf70bb3857d52e32a14ee.exe
Verdict:
Malicious activity
Analysis date:
2020-12-18 08:59:12 UTC
Tags:
rat remcos keylogger

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
Launching a process
Transferring files using the Background Intelligent Transfer Service (BITS)
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file in the %temp% directory
Enabling the 'hidden' option for files in the %temp% directory
Moving a file to the %temp% directory
Launching cmd.exe command interpreter
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Moving a file to the %AppData% subdirectory
Creating a file
Connection attempt
Unauthorized injection to a system process
Setting a global event handler for the keyboard
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:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
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
Detected Remcos RAT
Hijacks the control flow in another process
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Sigma detected: Remcos
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 332129 Sample: VOWhmy4Q0q.exe Startdate: 18/12/2020 Architecture: WINDOWS Score: 100 31 dominoduck2102.duckdns.org 2->31 33 ipv4.imgur.map.fastly.net 2->33 35 i.imgur.com 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Detected Remcos RAT 2->41 43 3 other signatures 2->43 8 VOWhmy4Q0q.exe 2->8         started        signatures3 process4 signatures5 45 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 8->45 47 Hijacks the control flow in another process 8->47 49 Writes to foreign memory regions 8->49 51 Allocates memory in foreign processes 8->51 11 extrac32.exe 8->11         started        process6 signatures7 53 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 11->53 55 Hijacks the control flow in another process 11->55 57 Writes to foreign memory regions 11->57 59 Maps a DLL or memory area into another process 11->59 14 cmd.exe 11->14         started        17 cmd.exe 2 4 11->17         started        21 cmd.exe 11->21         started        23 cmd.exe 11->23         started        process8 dnsIp9 61 Contains functionality to steal Chrome passwords or cookies 14->61 63 Contains functionality to capture and log keystrokes 14->63 65 Contains functionality to inject code into remote processes 14->65 67 Contains functionality to steal Firefox passwords or cookies 14->67 27 dominoduck2102.duckdns.org 181.52.113.7, 9403 TelmexColombiaSACO Colombia 17->27 29 192.168.2.1 unknown unknown 17->29 25 C:\Users\user\AppData\...\HelpPane.exe, PE32 17->25 dropped 69 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 17->69 file10 signatures11
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2020-12-14 21:06:00 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
dominoduck2102.duckdns.org:9403
Unpacked files
SH256 hash:
00a43037570aef0f977589fa679bf79627d04890fabfca6c19ae2c2f851ef289
MD5 hash:
742d0fbf067bf70bb3857d52e32a14ee
SHA1 hash:
3f8224bcafcb3ada45e51904cec76985dc71492f
SH256 hash:
c7fbdc61eb62c05e40295617e2db75877672931f751a770d2629e6eab6075f2c
MD5 hash:
abf6c724b20844d5b0073988a58faf1e
SHA1 hash:
7a8269d5b2ae623f8148ce9863f48f7e12ce036b
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.

Comments