MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dae7b35835c65b3586481620e925d9c899997d0e1805a948c235b04c05eb201f. 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 1

SHA256 hash: dae7b35835c65b3586481620e925d9c899997d0e1805a948c235b04c05eb201f
SHA3-384 hash: 2961b68faa861253f21e46f8f9aa46429b7db2a436cf0d367bc9814bafab246af7a4206dd029be6df1116e52092bd826
SHA1 hash: f6ebc15134378ac2eb90a1f5e85d022d4c64e743
MD5 hash: e065ae627d0ea742864544a9a3ea8d61
humanhash: football-charlie-mobile-ten
File name:ORDEN DE COMPRA-34003217,pdf.exe
Download: download sample
Signature RemcosRAT
File size:196'951 bytes
First seen:2021-05-20 15:05:58 UTC
Last seen:2021-05-20 17:21:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 3072:yQIURTXJ90kxMrtfcil9VV2RTtU3+1LmgB+ILERBcHODZK8Zs/07w/CZwX/:ys5eBZzQTy+1L9BfL1OD1ZANZX/
Threatray 1'788 similar samples on MalwareBazaar
TLSH 811402A371D2843FC866D77244735E27C2F7BE1522E10ADB5B803F972675283A42A2D6
Reporter lowmal3
Tags:RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a file in the %AppData% subdirectories
Modifying a system executable file
Sending a UDP request
Launching a process
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Unauthorized injection to a system process
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
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
Detected Remcos RAT
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Dridex Process Pattern
Sigma detected: Suspicious Svchost Process
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 418735 Sample: ORDEN DE COMPRA-34003217,pdf.exe Startdate: 20/05/2021 Architecture: WINDOWS Score: 100 33 goddywin.freedynamicdns.net 2->33 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->49 51 7 other signatures 2->51 7 ORDEN DE COMPRA-34003217,pdf.exe 1 23 2->7         started        11 dobvj.exe 18 2->11         started        13 dobvj.exe 18 2->13         started        signatures3 process4 file5 23 C:\Users\user\AppData\Roaming\...\dobvj.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\Local\...\System.dll, PE32 7->25 dropped 53 Writes to foreign memory regions 7->53 55 Maps a DLL or memory area into another process 7->55 15 svchost.exe 2 7->15         started        27 C:\Users\user\AppData\Local\...\System.dll, PE32 11->27 dropped 57 Multi AV Scanner detection for dropped file 11->57 59 Machine Learning detection for dropped file 11->59 19 svchost.exe 11->19         started        29 C:\Users\user\AppData\Local\Temp\stjcug, DOS 13->29 dropped 31 C:\Users\user\AppData\Local\...\System.dll, PE32 13->31 dropped 21 svchost.exe 13->21         started        signatures6 process7 dnsIp8 35 goddywin.freedynamicdns.net 194.5.97.14, 49749, 49752, 49755 DANILENKODE Netherlands 15->35 37 System process connects to network (likely due to code injection or exploit) 15->37 39 Contains functionality to steal Chrome passwords or cookies 15->39 41 Contains functionality to capture and log keystrokes 15->41 43 2 other signatures 15->43 signatures9
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-05-20 15:06:18 UTC
AV detection:
10 of 46 (21.74%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
goddywin.freedynamicdns.net:6712
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 dae7b35835c65b3586481620e925d9c899997d0e1805a948c235b04c05eb201f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-20 16:46:05 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.001] Data Micro-objective::CRC32::Checksum
1) [C0026.002] Data Micro-objective::XOR::Encode Data
3) [C0045] File System Micro-objective::Copy File
4) [C0046] File System Micro-objective::Create Directory
5) [C0048] File System Micro-objective::Delete Directory
6) [C0047] File System Micro-objective::Delete File
7) [C0049] File System Micro-objective::Get File Attributes
8) [C0051] File System Micro-objective::Read File
9) [C0050] File System Micro-objective::Set File Attributes
10) [C0052] File System Micro-objective::Writes File
11) [E1510] Impact::Clipboard Modification
12) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
13) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
14) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
15) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
16) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
17) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
18) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
19) [C0017] Process Micro-objective::Create Process
20) [C0038] Process Micro-objective::Create Thread
21) [C0018] Process Micro-objective::Terminate Process