MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f5a27e59dfac3afb073fe8ca6680a075e91442a707e5c3ca0bc4f7dcfb870e1f. 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: 14
| SHA256 hash: | f5a27e59dfac3afb073fe8ca6680a075e91442a707e5c3ca0bc4f7dcfb870e1f |
|---|---|
| SHA3-384 hash: | 39508ad29153a1c263a923d9fffd154947ac3618bcea3111074256e6fee0938a5da5eba749c154d1adeb3a99d01335cb |
| SHA1 hash: | d44745533cf2ebf4c4102052f0f5c27c9daec571 |
| MD5 hash: | dc130bd4ded53f0e29eeeca378761ddc |
| humanhash: | seven-cold-whiskey-michigan |
| File name: | createdbestthingswithbetterwaysgive_________createdbestthingswithbetterwaysgivemebestfor_______createdbestthingswithbetterwaysgive.doc |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 150'265 bytes |
| First seen: | 2025-02-12 20:11:29 UTC |
| Last seen: | 2025-02-12 21:15:47 UTC |
| File type: |  doc |
| MIME type: | text/rtf |
| ssdeep | 3072:mVcXon1bsA4xu14tpwYyVG2Kt1U6ioM9KMEYTeQnBEL6j7n4:mVcHuIiYyVG2KtSbIxYSSBkk7n4 |
| TLSH | T187E39C6EE34F0965DF59967B434B4A0A05FCB33DB28540A179AC973437ADC2E46228BC |
| Magika | rtf |
| Reporter |  abuse_ch |
| Tags: | CVE-2017-11882 doc RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
485
Origin country :
DEVendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Tags:
obfuscate shell sage
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Launching a service
Creating a file in the %temp% directory
Connection attempt
Creating a process from a recently created file
DNS request
Sending a custom TCP request
Connection attempt by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Fake RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Verdict:
Malicious
Labled as:
CVE-2017-11882
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
68 / 100
Signature
Antivirus / Scanner detection for submitted sample
Document exploit detected (process start blacklist hit)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Detection:
cve-2017-11882-shellcode
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2025-02-12 13:18:04 UTC
File Type:
Document
Extracted files:
4
AV detection:
15 of 24 (62.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
defense_evasion discovery execution
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Windows directory
Drops file in System32 directory
Command and Scripting Interpreter: PowerShell
Blocklisted process makes network request
Downloads MZ/PE file
Evasion via Device Credential Deployment
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | SUSP_INDICATOR_RTF_MalVer_Objects |
|---|---|
| Author: | ditekSHen |
| Description: | Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents. |
| Reference: | https://github.com/ditekshen/detection |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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