MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719. 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


YellowCockatoo


Vendor detections: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719
SHA3-384 hash: fc8b46409481067f81215378981b3250d24ad1d2f096f21087e0a7f9f4abb822a746df5cbaa1e0f01306e3da8615ca61
SHA1 hash: d953378bd0b9709aad6c230887d2f59585b05a99
MD5 hash: 4c152a009e1d9592edc252cc6c192fa4
humanhash: queen-mobile-mobile-coffee
File name:eABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZSGoUa7hwVGUO1UTAYTSf4CT5RNULREKgEKViQxPOOD8HGUp8rVHKXTRCC05O5OJGBG.dll
Download: download sample
Signature YellowCockatoo
Create hunting rule
File size:328'192 bytes
First seen:2024-06-04 18:29:42 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash dae02f32a21e03ce65412f6e56942daa (123 x YellowCockatoo, 60 x CobaltStrike, 44 x JanelaRAT)
ssdeep 6144:BtvmSjs4qClwDRWSquzLZ5QvG4CrTDlfSY0bAUe:W94P0WSVl5vTVSYW
Threatray 1 similar samples on MalwareBazaar
TLSH T1D464284837B2E661CF7C59F96823A716A728A3EBC3C26F421FE549721E47935C48D0C9
TrID 35.4% (.EXE) Win64 Executable (generic) (10523/12/4)
22.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.1% (.EXE) Win32 Executable (generic) (4504/4/1)
6.9% (.ICL) Windows Icons Library (generic) (2059/9)
6.8% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter SquiblydooBlog
Tags:dll Jupyter notsigned Plus 5 XP Corporation Polazert solarmarker YellowCockatoo

Intelligence

File Origin
# of uploads :
1
# of downloads :
410
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PolazertNET.15.14647.22274.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665f739cab69e84d6a2f68c9win7simulatehigh_evasion
Tags:
Redcap
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed redcap
Link:
https://www.filescan.io/uploads/665f5d2b6b8dba248b3c36eb/reports/b305487c-73f8-489d-9ef0-916d5a790e7e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
SolarMarker
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/be66350e-dab2-439a-bea9-8e43e7722566
Result
Threat name:
Jupyter
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1451961
Signature
Multi AV Scanner detection for submitted file
Yara detected Jupyter
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1451961 Sample: 5O5OJGBG.dll Startdate: 04/06/2024 Architecture: WINDOWS Score: 56 16 15.164.165.52.in-addr.arpa 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Yara detected Jupyter 2->20 8 loaddll32.exe 1 2->8         started        signatures3 process4 process5 10 cmd.exe 1 8->10         started        12 conhost.exe 8->12         started        process6 14 rundll32.exe 10->14         started       
Score:
79%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719/
Threat name:
Win32.Spyware.Solarmarker
Create hunting rule
Status:
Malicious
First seen:
2024-06-03 14:52:10 UTC
File Type:
PE (.Net Dll)
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rm7iuvavjb57xhln3wvf4omd5q3exv3viseos5ibozw337pts4mq._file
Verdict:
malicious
Similar samples:
8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719
YellowCockatoo
Result
Malware family:
jupyter
Create hunting rule
Score:
  10/10
Tags:
family:jupyter
Link:
https://tria.ge/reports/240604-w5f7zafd9s/
Malware Config
C2 Extraction:
68.233.238.123
Unpacked files
SH256 hash:
8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719
MD5 hash:
4c152a009e1d9592edc252cc6c192fa4
SHA1 hash:
d953378bd0b9709aad6c230887d2f59585b05a99
Detections:
SolarmarkerStage2
Create hunting rule
SolarMarker_loader
Create hunting rule
Link:
https://www.unpac.me/results/a36f0037-e5bc-4bd0-8feb-29966000ec08/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.14
Link:
https://yomi.yoroi.company/submissions/8b3e8a5415487bfb9d6dddaa5e3983ec364bd7754488e97501766dbdfdf39719

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:extracted_at_0x44b
Create hunting rule
Author:cb
Description:sample - file extracted_at_0x44b.exe
Reference:Internal Research
Rule name:NETDLLMicrosoft
Create hunting rule
Author:malware-lu
Rule name:win_solarmarker_bytecodes
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in solarmarker Packer

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

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