MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a
SHA3-384 hash: f7f5197bb5bda59df7bf007a250e2576e196e384cc4e976199f8c8821f803d58182b2dfee79cc92ac6608f9c40c834ed
SHA1 hash: 58bda2ce0b78940851a1d957b0540109e345dc2e
MD5 hash: e9645995e5cbfbfdee6affbc4b7ab754
humanhash: saturn-quiet-leopard-fix
File name:709476 APL-794690470 ORDER807.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'266'688 bytes
First seen:2023-05-10 13:20:58 UTC
Last seen:2023-05-15 10:22:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:szv6Lk8GWJV5XGe/XT+G0DkL+0x43l99TtXlpL:szvmkQjGqT+G0DkLMBT1lp
Threatray 2'239 similar samples on MalwareBazaar
TLSH T1CD45ADAC320074AFCB07CA7B8A681C64AA343566AF0BD117A16F15DCDE0DA93DF155E3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
267
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
709476 APL-794690470 ORDER807.exe
Verdict:
Malicious activity
Analysis date:
2023-05-10 13:23:23 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/ff564fe7-7600-490e-a0b6-e7ed385620d6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/388199/
Detection(s):
SecuriteInfo.com.Win32.SuspectCrc.29825.6127.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/645b9a3ed054a0b0ef84889b/reports/381c856a-b0ea-41bc-a13e-50813763125d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/6dbcc130-f8fb-4bba-b1c6-306c1db1afac
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1230060
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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
Sample uses string decryption to hide its real strings
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 863044 Sample: 709476_APL-794690470_ORDER807.exe Startdate: 10/05/2023 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 70 10 other signatures 2->70 8 709476_APL-794690470_ORDER807.exe 6 2->8         started        12 gjXVvTNSLrqH.exe 2 2->12         started        14 remcos.exe 2->14         started        16 2 other processes 2->16 process3 file4 50 C:\Users\user\AppData\...\gjXVvTNSLrqH.exe, PE32 8->50 dropped 52 C:\Users\...\gjXVvTNSLrqH.exe:Zone.Identifier, ASCII 8->52 dropped 54 C:\Users\user\AppData\Local\...\tmp8FF3.tmp, XML 8->54 dropped 72 Detected unpacking (changes PE section rights) 8->72 74 Detected unpacking (overwrites its own PE header) 8->74 76 Uses schtasks.exe or at.exe to add and modify task schedules 8->76 78 Adds a directory exclusion to Windows Defender 8->78 18 709476_APL-794690470_ORDER807.exe 2 4 8->18         started        21 powershell.exe 21 8->21         started        23 powershell.exe 21 8->23         started        31 2 other processes 8->31 80 Antivirus detection for dropped file 12->80 82 Multi AV Scanner detection for dropped file 12->82 84 Machine Learning detection for dropped file 12->84 86 Injects a PE file into a foreign processes 14->86 25 remcos.exe 14->25         started        29 schtasks.exe 14->29         started        signatures5 process6 dnsIp7 46 C:\ProgramData\Remcos\remcos.exe, PE32 18->46 dropped 48 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 18->48 dropped 33 remcos.exe 2 18->33         started        36 conhost.exe 21->36         started        38 conhost.exe 23->38         started        56 212.193.30.230, 3330 SPD-NETTR Russian Federation 25->56 88 Installs a global keyboard hook 25->88 40 conhost.exe 29->40         started        42 conhost.exe 31->42         started        file8 signatures9 process10 signatures11 58 Antivirus detection for dropped file 33->58 60 Multi AV Scanner detection for dropped file 33->60 62 Machine Learning detection for dropped file 33->62 44 conhost.exe 36->44         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-05-10 13:19:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j65tx6a7uvrc6rsav6tf7svbrs7yrwrd4yayxwt5a2car2katsfa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0003b5d6c92e1466b6f734da9175b9cfc65ebd4d576b73f92100b0b2e899bb3b
RemcosRAT
108ad52223146f11df1f746b5b2fa805905c183d0fab1ed35cabaa0226df91de
RemcosRAT
2484f3b9e112f39471b0375d98ac190b4ffe3e29a295bcecdb8fd7b71af0094b
RemcosRAT
55e427b25c25bcfe1b0975adba359a3790ebdbc0f2e065d3e0c84ccda77d5c1a
RemcosRAT
57979ca3e646ecfcf45221a35642d69c66d753e9961468e65e66670c4f7513a6
RemcosRAT
57ff6de510ccaa060efa53e2c9e1c1b8c3b132fa55289a8a7ecc321a5370043a
RemcosRAT
a5ee311c1782356ae8fd1e5fc6f6a2cdde6dd79ebc5c80a02c36b3327ba3ac7d
RemcosRAT
c0a209c7475d77aab35852ae9662365b1704fdac50b9f3d59daebdee13018942
RemcosRAT
e5615a6c90478a371040d8f7d4721e183b5efcc0b0e6ce64b7ab4ee1d04bf0be
RemcosRAT
+ 2'229 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat spyware stealer
Link:
https://tria.ge/reports/230510-qlmyhshh71/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
212.193.30.230:3330
Unpacked files
SH256 hash:
cb713c0c90497ffe320d3e946a079bd258ae2cb1dfddd7f13f1d94591e33308b
MD5 hash:
f1c779d7dd9573f423b2d6f19e98591e
SHA1 hash:
fec0951202b76f98d00cd7203b31b22e676d4f3f
Link:
https://www.unpac.me/results/6f5dfa7f-d0c8-4935-8048-5138a7ee17d2/
SH256 hash:
4d497885d792bb88d72d47820d3154987042d1f184ad904e69e4efbccfa50860
MD5 hash:
3fcc6a697c19e2d08d30c1a69f06bcc8
SHA1 hash:
ad56a6ad9aa532a97791d09c6d6145e7087a4610
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/6f5dfa7f-d0c8-4935-8048-5138a7ee17d2/
Parent samples :
2010a7e1a136a9881ba4db4beb99088ea77ea2997d36e6d1d16fc696b34fda8b
f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861
6053c5c3a4202b8c2e6b2f176a99c980233f63024be06b67d3a30e2f0b4470f4
4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a
f0b85c3d890019c1d88274fb49f4caa52d696917a418ffee89324ad40d0076c9
SH256 hash:
437a5fd3553ce06cabff07cfd51f02fe8c913b32acfe0897eb541f4e10647c69
MD5 hash:
0e456a13ed56a5f9789f73f7911f2539
SHA1 hash:
34f13f60d58ed19d95262c47294fcef9121b2cdc
Link:
https://www.unpac.me/results/6f5dfa7f-d0c8-4935-8048-5138a7ee17d2/
SH256 hash:
d8fc5dfdf2800247eb610beb076fec4d2becf6d951e89445d43237fe97814218
MD5 hash:
e5d93dadd08b8bc727e4f4853c6881ba
SHA1 hash:
27e0e057d33f01586193b0cbf06561c2863951f4
Link:
https://www.unpac.me/results/6f5dfa7f-d0c8-4935-8048-5138a7ee17d2/
SH256 hash:
1e1bd80cadec42f9e16e0123a5e80f0f9fbaf7a824ff2fc2a809b9118ac759f2
MD5 hash:
8acb349337db9986145bb5bed748ffad
SHA1 hash:
d0c3d8602fff41f7276cc5132c321afd9d05bcd1
Link:
https://www.unpac.me/results/6f5dfa7f-d0c8-4935-8048-5138a7ee17d2/
SH256 hash:
4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a
MD5 hash:
e9645995e5cbfbfdee6affbc4b7ab754
SHA1 hash:
58bda2ce0b78940851a1d957b0540109e345dc2e
Link:
https://www.unpac.me/results/6f5dfa7f-d0c8-4935-8048-5138a7ee17d2/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4fbb3bf81fa5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/388199/

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