MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 e571cd3a4c0744cb3c5443b868577adced331a7545fcb6e2ed0efbe7506a2f9b. 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
CobaltStrike
Vendor detections: 7
| SHA256 hash: | e571cd3a4c0744cb3c5443b868577adced331a7545fcb6e2ed0efbe7506a2f9b |
|---|---|
| SHA3-384 hash: | 022b07bff8ea72a940d2deade6fe7e8ba9460e1efccff909d993a931f2060b4af2b9e98afd55d8c32155220b150f372d |
| SHA1 hash: | 6a11b5a71781410cf2fe48262beac581caf9c723 |
| MD5 hash: | 24d9aedfbf8e7841716d307177bd5fe4 |
| humanhash: | oregon-artist-helium-kilo |
| File name: | fiashplayerpp_lnstall_cn.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 1'691'183 bytes |
| First seen: | 2020-08-27 10:02:44 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat) |
| ssdeep | 49152:CRCd7qp8TxXVODHRmXRNjO0QxRVkyRuFR0x:C+XXVyMhZoRVtRAc |
| Threatray | 317 similar samples on MalwareBazaar |
| TLSH | 39752302F9C18C72C5710C324A2EB71DA57DB9200F299B7EB7D4187EEB760526329E67 |
| Reporter |  JAMESWT_WT |
| Tags: | CobaltStrike |
Intelligence
File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Searching for the window
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a file in the %temp% subdirectories
Creating a file
Delayed writing of the file
Changing a file
DNS request
Sending a custom TCP request
Sending a UDP request
Moving a recently created file
Sending an HTTP GET request
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject threads in other processes
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
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
PE file has a writeable .text section
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Cometer
Status:
Malicious
First seen:
2020-08-24 13:14:07 UTC
File Type:
PE (Exe)
Extracted files:
274
AV detection:
25 of 29 (86.21%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 307 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Modifies system certificate store
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Loads dropped DLL
Executes dropped EXE
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
CobaltStrike
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: | Beacon_K5om |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Meterpreter Beacon - file K5om.dll |
| Reference: | https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html |
| Rule name: | CobaltStrike_Sleep_Decoder_Indicator |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike sleep_mask decoder |
| Rule name: | CobaltStrike_Unmodifed_Beacon |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects unmodified CobaltStrike beacon DLL |
| Rule name: | Leviathan_CobaltStrike_Sample_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Cobalt Strike sample from Leviathan report |
| Reference: | https://goo.gl/MZ7dRg |
| Rule name: | Malware_QA_vqgk |
|---|---|
| Author: | Florian Roth |
| Description: | VT Research QA uploaded malware - file vqgk.dll |
| Reference: | VT Research QA |
| Rule name: | PowerShell_Susp_Parameter_Combo |
|---|---|
| Author: | Florian Roth |
| Description: | Detects PowerShell invocation with suspicious parameters |
| Reference: | https://goo.gl/uAic1X |
| Rule name: | ReflectiveLoader |
|---|---|
| Description: | Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended |
| Reference: | Internal Research |
| Rule name: | suspicious_packer_section |
|---|---|
| Author: | @j0sm1 |
| Description: | The packer/protector section names/keywords |
| Reference: | http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/ |
| Rule name: | WiltedTulip_ReflectiveLoader |
|---|---|
| Author: | Florian Roth |
| Description: | Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip |
| Reference: | http://www.clearskysec.com/tulip |
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
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.