MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71f0524220c02e27c282f118bd1da387695c2d805934cb4bf1362f8f1f5b0c5c. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 71f0524220c02e27c282f118bd1da387695c2d805934cb4bf1362f8f1f5b0c5c
SHA3-384 hash: 9af4ee4a3750e35a039dc48ff94c50fc4601117b11a988e87b199bc2e6bb05ba29b3b9a2c79f56ffe18216a0ddb5288d
SHA1 hash: a61a8a8208f2aa7f3b2702009bf76e93e7c0c129
MD5 hash: 14507692e17fbbb7494a2eeb5cdba146
humanhash: leopard-crazy-lake-kitten
File name:masa_prot.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:940'544 bytes
First seen:2021-10-14 09:36:40 UTC
Last seen:2021-10-15 05:41:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:TNlZbgHouXS6lBWexUCBie5Z1FO6Lsf9b1yTeMFKE6u:hyouXuxTenTc/yVPr
Threatray 754 similar samples on MalwareBazaar
TLSH T15C15E12726C65790D1BA8B75A7B804E813F4A31F8712E7BF3DD542E4CE11A4A52236F3
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
148
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
masa_prot.exe
Verdict:
Malicious activity
Analysis date:
2021-10-14 09:42:01 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/0c510380-41f5-4858-a30d-a8d16f118fa9

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/197466/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.528.886.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6167fa3ffd35fe780c3fa245/reports/132b0cc7-30d5-457d-993f-512602d4ef7b/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ec294e15-d7db-443f-8c1e-7555c14ad776
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/870316
Signature
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
Creates an undocumented autostart registry key
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 502744 Sample: masa_prot.exe Startdate: 14/10/2021 Architecture: WINDOWS Score: 100 43 hadrqlo.ddns.net 2->43 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Detected Remcos RAT 2->65 67 4 other signatures 2->67 9 masa_prot.exe 15 7 2->9         started        signatures3 process4 dnsIp5 49 pastebin.pl 168.119.93.163, 443, 49760, 49763 HETZNER-ASDE Germany 9->49 33 C:\Users\user\AppData\Roaming\smess.exe, PE32 9->33 dropped 35 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 9->35 dropped 37 C:\Users\user\...\smess.exe:Zone.Identifier, ASCII 9->37 dropped 39 C:\Users\user\AppData\...\masa_prot.exe.log, ASCII 9->39 dropped 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->81 14 smess.exe 14 6 9->14         started        19 cmd.exe 1 9->19         started        file6 signatures7 process8 dnsIp9 51 pastebin.pl 14->51 41 C:\Users\user\AppData\Local\...\YengProc.exe, PE32 14->41 dropped 53 Machine Learning detection for dropped file 14->53 55 Writes to foreign memory regions 14->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->57 59 Injects a PE file into a foreign processes 14->59 21 AddInProcess32.exe 2 2 14->21         started        25 YengProc.exe 2 14->25         started        27 reg.exe 1 1 19->27         started        29 conhost.exe 19->29         started        file10 signatures11 process12 dnsIp13 45 hadrqlo.ddns.net 194.5.97.97, 4301, 49783, 49794 DANILENKODE Netherlands 21->45 47 192.168.2.1 unknown unknown 21->47 69 Contains functionality to steal Chrome passwords or cookies 21->69 71 Contains functionality to inject code into remote processes 21->71 73 Contains functionality to steal Firefox passwords or cookies 21->73 79 2 other signatures 21->79 75 Multi AV Scanner detection for dropped file 25->75 31 YengProc.exe 25->31         started        77 Creates an undocumented autostart registry key 27->77 signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/71f0524220c02e27c282f118bd1da387695c2d805934cb4bf1362f8f1f5b0c5c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-14 09:37:05 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ohyfeqrayaxcpquc6eml2hndq5uvylmale2mws7rgyxy6h23broa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0bb25dccd5ee69b35f2c03c04b50ec23573929d193739becb1c623d32db64e4a
RemcosRAT
1730338ca0fbfe0985bed5638fc8599a6dd38761ab8b89e3d8a076947a320028
RemcosRAT
49cb5b15b21ecd89b7462da8008c6c49d32310858912344f11fa04dab67f1f3a
RemcosRAT
502f18997fa73c5af97c3f8f3cd7a8a12d7d648642bd238b4eb15c0457e879a1
RemcosRAT
75d92595eacd434de03308b953df7cb12ae082d15093378a9d66814a41c92622
RemcosRAT
772a319b31a1922eadd022f30aa60680e911f758d4c81c4dbf16614cf7791f0a
RemcosRAT
9a50c056a96999f841ea1ef7bb6674da47579f5cafe02e295c75e980b36219a9
RemcosRAT
a7f4245d63e1dd21c5af3e0ddf682ac517eda484bf6650f3e0d5d856f4cc68fa
RemcosRAT
e21e8c522a9966a51d1059cac3735a68a08803182e7ce78e857d28c0d3424f1f
RemcosRAT
+ 744 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/211014-llgpaaggh4/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Modifies WinLogon for persistence
Remcos
Malware Config
C2 Extraction:
hadrqlo.ddns.net:4301
Unpacked files
SH256 hash:
71f0524220c02e27c282f118bd1da387695c2d805934cb4bf1362f8f1f5b0c5c
MD5 hash:
14507692e17fbbb7494a2eeb5cdba146
SHA1 hash:
a61a8a8208f2aa7f3b2702009bf76e93e7c0c129
Link:
https://www.unpac.me/results/bd484351-8bdf-40f1-9dd4-54bf722b1bde/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/71f0524220c0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/71f0524220c02e27c282f118bd1da387695c2d805934cb4bf1362f8f1f5b0c5c

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:pe_imphash
Create hunting rule
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.

Malspam

RemcosRAT

Executable exe 71f0524220c02e27c282f118bd1da387695c2d805934cb4bf1362f8f1f5b0c5c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/197466/

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