MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16
SHA3-384 hash: 843f8057d25807abe15fdc7b6a6d62b2c92d2125fa985ca47023d8a05b0f0666a9d51aa60fedf2bfb8a597c48026716b
SHA1 hash: 8e9a73bc9721a41212a9ac0848dffe9786e4d7e9
MD5 hash: d6070865f528615a1b2915b22e83172e
humanhash: minnesota-double-white-five
File name:Banco BPM SpA_ Documento di Pagamento PDF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:845'312 bytes
First seen:2023-06-13 13:20:05 UTC
Last seen:2023-06-13 13:41:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 37795b00317f02deea74012e147ddf7f (2 x Formbook, 1 x RemcosRAT, 1 x DBatLoader)
ssdeep 24576:R0NweXJj4mk4TLmX48KMrFioj22222222222222222222222222222222222222V:R06ee5wGMynj
Threatray 2'025 similar samples on MalwareBazaar
TLSH T1E3059D9EA3D2C833D4B22378495B97587826BFA02D58F446BAE83D9CDF3E140291D357
TrID 76.3% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
12.0% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
4.1% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.8% (.SCR) Windows screen saver (13097/50/3)
1.3% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 74f0d0d6d6c2d4dc (4 x Formbook, 2 x RemcosRAT, 1 x DBatLoader)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
295
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Banco BPM SpA_ Documento di Pagamento PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-06-13 13:21:17 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/6bc71faf-f4f1-49be-923d-72c26cc2ff76

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/398341/
Detection(s):
SecuriteInfo.com.Variant.Zusy.472323.27482.27859.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file
Launching a process
Creating a process with a hidden window
Searching for the window
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Query of malicious DNS domain
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Sending an HTTP GET request to an infection source
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/90458/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware keylogger lolbin packed remcos
Link:
https://www.filescan.io/uploads/64886d3f9f45f940f553cdae/reports/6b005f70-6aa2-4710-9a82-a694c62d2a5d/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16
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.
Malware family:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/39aae259-8b0a-46e5-8613-ee53f08fa2d6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1253617
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
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)
Delayed program exit found
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Remcos
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 886637 Sample: Banco_BPM_SpA__Documento_di... Startdate: 13/06/2023 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 9 other signatures 2->48 7 Banco_BPM_SpA__Documento_di_Pagamento_PDF.exe 1 3 2->7         started        12 Mbjuxqmt.bat 2->12         started        process3 dnsIp4 34 savory.com.bd 45.56.99.101, 49720, 49724, 80 LINODE-APLinodeLLCUS United States 7->34 30 C:\Users\Public\Libraries\Mbjuxqmt.bat, PE32 7->30 dropped 32 C:\Users\...\Mbjuxqmt.bat:Zone.Identifier, ASCII 7->32 dropped 56 Writes to foreign memory regions 7->56 58 Allocates memory in foreign processes 7->58 60 Creates a thread in another existing process (thread injection) 7->60 14 logagent.exe 3 14 7->14         started        62 Multi AV Scanner detection for dropped file 12->62 64 Machine Learning detection for dropped file 12->64 66 Injects a PE file into a foreign processes 12->66 18 colorcpl.exe 12->18         started        file5 signatures6 process7 dnsIp8 38 91.245.253.46, 49721, 49722, 8709 V4ESCROW-ASRO Romania 14->38 40 geoplugin.net 178.237.33.50, 49723, 80 ATOM86-ASATOM86NL Netherlands 14->40 68 Contains functionality to bypass UAC (CMSTPLUA) 14->68 70 Contains functionality to steal Chrome passwords or cookies 14->70 72 Contains functionality to inject code into remote processes 14->72 74 5 other signatures 14->74 20 logagent.exe 1 14->20         started        23 logagent.exe 14->23         started        25 logagent.exe 14->25         started        27 17 other processes 14->27 signatures9 process10 dnsIp11 50 Tries to steal Instant Messenger accounts or passwords 20->50 52 Tries to steal Mail credentials (via file / registry access) 20->52 36 192.168.2.1 unknown unknown 27->36 54 Tries to harvest and steal browser information (history, passwords, etc) 27->54 signatures12
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-06-13 13:21:06 UTC
File Type:
PE (Exe)
Extracted files:
51
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kwzxt3em25jpcbdalpn5raciyhb3jhbsrm4txjewjffbddxvvyla._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
6ff3c874127b92713c89a07825d7794a47cdff0fbaa8500685ff116bd09ffd09
RemcosRAT
8158105e4cb87778d3714e6ab22a16251ffa4475124a8269fa6e722e016e3e1a
RemcosRAT
8c80ec1c91dcd77ea0be5d0e53e289a6bc0ed764a12f9262ba979f579bb25591
RemcosRAT
a4a9151dee1026abcaec06ec7596983a05cc7df43c37d5646e17ae02e2902445
RemcosRAT
af4302878827cd62e91d7f42d963b213f4dbb220b28148f86f63a799666b1931
RemcosRAT
c1bcaa3723fd87f8a0a537c14ecf7e5852a69d33995333b40a7a475eb2e1696c
RemcosRAT
da38425cef4712b8fd31378e6576d94f01707bc7e52b6f70d782f7dc9c07e876
RemcosRAT
de33fd9d4c89f8d5ffad69cb7743922d8d22f54890f9ca69161edce001cba9ad
RemcosRAT
ea2f8aca010aba1f0ebb0b5af2de53b2a4106d5feb147f34e0a8e615eccd77c1
RemcosRAT
+ 2'015 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost collection persistence rat trojan
Link:
https://tria.ge/reports/230613-qk5ryagg91/
Behaviour
Modifies registry class
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
ModiLoader Second Stage
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
91.245.253.46:8709
Unpacked files
SH256 hash:
14444f320e9117c9e269046500b4425d70dd06c553a38a3dda389fd7cafbaa25
MD5 hash:
64f92cfcc65160a3d4a4a6869391c6d3
SHA1 hash:
182692f90021beadb95eba74aa4057e9de5f2065
Detections:
win_dbatloader_g1
Create hunting rule
Link:
https://www.unpac.me/results/f9ce0c73-8228-44db-a75b-7aef00af9345/
SH256 hash:
55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16
MD5 hash:
d6070865f528615a1b2915b22e83172e
SHA1 hash:
8e9a73bc9721a41212a9ac0848dffe9786e4d7e9
Link:
https://www.unpac.me/results/f9ce0c73-8228-44db-a75b-7aef00af9345/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/55b379ec8cd7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.44
Link:
https://yomi.yoroi.company/submissions/55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

Executable exe 55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/398341/

Comments