MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c
SHA3-384 hash: 8f5ed98745ef459a3863325aec5fb4eb5d78fd730fdc15b46a2602aaf41bc1cc726d3e8ab4a3d7253a48d5e349497772
SHA1 hash: f2c52fe7ef6a788753fdff30f6f3160bf78ca387
MD5 hash: 85ca9e9a8e9a2a6bbbccf9f0f8431efc
humanhash: quiet-timing-illinois-jig
File name:Outstanding Docs For Overdue Invoices.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:668'160 bytes
First seen:2022-07-05 11:08:31 UTC
Last seen:2022-07-05 14:30:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:yn3chyx9iBbgN6p0Jk5OPNPVDiyy0Uem7aSuSsTC7dwe7AYNxljwwrIFoMTA13kj:yRxobX5ObD2fe3LLCWIvNrMwrIw13y
TLSH T186E42326DBA60C46C12BA873455C1679CD343D216CBA1E3AA021627D16283DBDEF3FF5
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f0f8b8b4bc9ce071 (2 x RemcosRAT, 1 x Formbook)
Reporter cocaman
Tags:exe payment RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Rogue.0hr.20220705-1433.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
DNS request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm packed
Link:
https://www.filescan.io/uploads/62c41bcf11764e36f81692cc/reports/32f5ff3c-22ee-4348-8e62-4aa9d027a999/overview
Result
Verdict:
UNKNOWN
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/05f0637d-2fa2-48be-8b83-21a7437e50ef
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1024740
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Encrypted powershell cmdline option found
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 657231 Sample: Outstanding Docs For Overdu... Startdate: 05/07/2022 Architecture: WINDOWS Score: 100 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus / Scanner detection for submitted sample 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 9 other signatures 2->59 7 Outstanding Docs For Overdue Invoices.exe 1 5 2->7         started        11 iphone.exe 2 2->11         started        13 iphone.exe 1 2->13         started        process3 file4 35 C:\Users\user\AppData\Roaming\...\iphone.exe, PE32 7->35 dropped 37 C:\Users\user\...\iphone.exe:Zone.Identifier, ASCII 7->37 dropped 39 Outstanding Docs F...ue Invoices.exe.log, ASCII 7->39 dropped 61 Encrypted powershell cmdline option found 7->61 63 Writes to foreign memory regions 7->63 65 Allocates memory in foreign processes 7->65 15 InstallUtil.exe 2 9 7->15         started        19 powershell.exe 15 7->19         started        67 Antivirus detection for dropped file 11->67 69 Multi AV Scanner detection for dropped file 11->69 71 Machine Learning detection for dropped file 11->71 21 powershell.exe 14 11->21         started        23 InstallUtil.exe 11->23         started        73 Injects a PE file into a foreign processes 13->73 25 powershell.exe 13->25         started        27 InstallUtil.exe 13->27         started        signatures5 process6 dnsIp7 41 blackwealth001.duckdns.org 192.3.152.173, 2356, 49799 AS-COLOCROSSINGUS United States 15->41 43 geoplugin.net 178.237.33.50, 49800, 80 ATOM86-ASATOM86NL Netherlands 15->43 45 Contains functionality to steal Chrome passwords or cookies 15->45 47 Contains functionality to inject code into remote processes 15->47 49 Contains functionality to steal Firefox passwords or cookies 15->49 51 2 other signatures 15->51 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        signatures8 process9
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c/
Threat name:
ByteCode-MSIL.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-07-05 10:35:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
23 of 26 (88.46%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ksbms52tmlhcalhujmeczz2h67tj6urksa6myay4s5omofgifkga._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:iphone persistence rat
Link:
https://tria.ge/reports/220705-m84yrsadf7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
blackwealth001.duckdns.org:2356
Unpacked files
SH256 hash:
43464aed60d66ff2af7bacafab98d625ca26ff0d85e976fa27350ae25812c0fd
MD5 hash:
e7e660c692abd3ff426be63451f8bb3d
SHA1 hash:
268a0290f57659e6eef1801883cd216d74ef47dc
Link:
https://www.unpac.me/results/0da7aaad-9b67-4921-92d4-e1e0be0a5bd2/
SH256 hash:
5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c
MD5 hash:
85ca9e9a8e9a2a6bbbccf9f0f8431efc
SHA1 hash:
f2c52fe7ef6a788753fdff30f6f3160bf78ca387
Link:
https://www.unpac.me/results/0da7aaad-9b67-4921-92d4-e1e0be0a5bd2/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5482c9775362/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

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

Malspam

RemcosRAT

rar 0dc4aea2d906cfc836b44521c5e902cdadd1245bd8eb26c0ee9b87c1764c0fff

RemcosRAT

Executable exe 5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 0dc4aea2d906cfc836b44521c5e902cdadd1245bd8eb26c0ee9b87c1764c0fff
  
Dropped by
MD5 d741e9495879bb1537e71c7fbc3cf7b7

Comments