MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments

SHA256 hash: 00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9
SHA3-384 hash: c7ba2f12263465b6f3d45592312e2f42ed9283f20aa1919f2262eb6c50bd766e5c2295c3b5de7e5e1d92e8c9b6916047
SHA1 hash: 0447f64739d8b3ff0f1eaa9f8a33ac4bf5a83b9e
MD5 hash: b29b16ebb9b0e72685abcb3d1bb10ecb
humanhash: kansas-potato-lake-oranges
File name:00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9
Download: download sample
Signature RemcosRAT
File size:1'073'664 bytes
First seen:2024-12-05 15:47:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:nEFEYFTBWob0zYtxuPjwx6EEsRId90km:EFxFISxUwDRE9T
Threatray 4'413 similar samples on MalwareBazaar
TLSH T16935D01476548F62CA7587F83872F17013FC5E6E642AE2255DC27EEB79B2F048960E83
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
301
Origin country :
HU HU
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Tags:
remcos packed virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt to an infection source
Sending a TCP request to an infection source
Query of malicious DNS domain
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
nanocore packed packed packer_detected remcos
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1569257 Sample: clfCnDEDd1.exe Startdate: 05/12/2024 Architecture: WINDOWS Score: 100 42 windowsoctarem.duckdns.org 2->42 44 fp2e7a.wpc.phicdn.net 2->44 46 fp2e7a.wpc.2be4.phicdn.net 2->46 52 Suricata IDS alerts for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 60 10 other signatures 2->60 8 zkCXHdkRhSWE.exe 5 2->8         started        11 clfCnDEDd1.exe 7 2->11         started        signatures3 58 Uses dynamic DNS services 42->58 process4 file5 62 Antivirus detection for dropped file 8->62 64 Multi AV Scanner detection for dropped file 8->64 66 Contains functionalty to change the wallpaper 8->66 72 6 other signatures 8->72 14 schtasks.exe 1 8->14         started        16 zkCXHdkRhSWE.exe 8->16         started        34 C:\Users\user\AppData\...\zkCXHdkRhSWE.exe, PE32 11->34 dropped 36 C:\Users\...\zkCXHdkRhSWE.exe:Zone.Identifier, ASCII 11->36 dropped 38 C:\Users\user\AppData\Local\...\tmpEB76.tmp, XML 11->38 dropped 40 C:\Users\user\AppData\...\clfCnDEDd1.exe.log, ASCII 11->40 dropped 68 Uses schtasks.exe or at.exe to add and modify task schedules 11->68 70 Adds a directory exclusion to Windows Defender 11->70 18 powershell.exe 23 11->18         started        21 clfCnDEDd1.exe 2 11->21         started        24 schtasks.exe 1 11->24         started        signatures6 process7 dnsIp8 26 conhost.exe 14->26         started        50 Loading BitLocker PowerShell Module 18->50 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        48 windowsoctarem.duckdns.org 192.169.69.26, 49706, 49711, 49738 WOWUS United States 21->48 32 conhost.exe 24->32         started        signatures9 process10
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2024-10-09 08:51:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:8846455 discovery execution rat
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
windowsoctarem.duckdns.org:56892
Verdict:
Malicious
Tags:
Win.Dropper.Nanocore-10025638-0
YARA:
n/a
Unpacked files
SH256 hash:
9aea1d5cfbc173682f2ba638278027eb9575d30db86802256406b2faf2762f21
MD5 hash:
567f937b42c75c882361bff5f1ad2526
SHA1 hash:
e706a282d5e1743d11648b3bf01221d1d687192e
Detections:
Remcos win_remcos_auto win_remcos_w0 malware_windows_remcos_rat INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer win_remcos_rat_unpacked
SH256 hash:
76c849cc39a5b91c5ad05ff94dedc4f53e43c9f785e7b16c1e89a1cabea4fb6a
MD5 hash:
35fff4d00136038dd7831af7c0846c5f
SHA1 hash:
dedaa8f39c19d70fa2511a68fd14823da17de512
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
682c261fcd08c676ef231f46eac1c054c8df17522846b9e4adbafb62e8482dab
MD5 hash:
5a6cead6de3340dd9e0b16d599e5d1f5
SHA1 hash:
00e25f93284ff0d2493c6df3a596891d0848399e
SH256 hash:
00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9
MD5 hash:
b29b16ebb9b0e72685abcb3d1bb10ecb
SHA1 hash:
0447f64739d8b3ff0f1eaa9f8a33ac4bf5a83b9e
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:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:RansomPyShield_Antiransomware
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments