MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1cc1eee8759fb31c6c45a8a690e1a977848655ae9bd6d8ce6ac3fcef80814b1. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d1cc1eee8759fb31c6c45a8a690e1a977848655ae9bd6d8ce6ac3fcef80814b1
SHA3-384 hash: e5ca3758f0c87d5c19c6a1c4a90815402e64a758e8a18672f1d1f46a4b6cf74793ac52c5448bc9689c5b2d02b34f4c84
SHA1 hash: 2890239152ce0e79434056049386159bca371b93
MD5 hash: ac4a5b128a94bb0f05dc81d9923b49f5
humanhash: wolfram-east-robert-video
File name:iABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZiOC3RQfICFWL7YDPOX3VWAFELGOBPXUbJIFLE_3OJVZMT1EQONDUiDBJxYpaGZHCebPrIBY_NAJbQPGyO.dll
Download: download sample
Signature YellowCockatoo
Create hunting rule
File size:1'020'416 bytes
First seen:2024-05-09 14:39:48 UTC
Last seen:2024-05-09 15:20:31 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash dae02f32a21e03ce65412f6e56942daa (123 x YellowCockatoo, 60 x CobaltStrike, 44 x JanelaRAT)
ssdeep 12288:MR0b2TNJCJeA2GLt21xP/jnD0UQuc0fBQFn+q6IrvNVVHURZ/:MRxyZLornD0NJ5n+4lVVHu1
TLSH T15A255C0437ADF961CB2C5AE4689F571F6B209EF3C6C287453AA7F57D8A0AC2E44483C5
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 Polazert solarmarker YellowCockatoo

Intelligence

File Origin
# of uploads :
2
# of downloads :
441
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PolazertNET.14.19871.25342.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/d1cc1eee8759fb31c6c45a8a690e1a977848655ae9bd6d8ce6ac3fcef80814b1
Malware family:
SolarMarker
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b1b318d9-5424-403e-ae0a-9de0cc85485d
Result
Threat name:
Jupyter
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1439004
Signature
Multi AV Scanner detection for submitted file
Yara detected Jupyter
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1439004 Sample: AJbQPGyO.dll Startdate: 09/05/2024 Architecture: WINDOWS Score: 56 15 Multi AV Scanner detection for submitted file 2->15 17 Yara detected Jupyter 2->17 7 loaddll32.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        11 conhost.exe 7->11         started        process5 13 rundll32.exe 9->13         started       
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d1cc1eee8759fb31c6c45a8a690e1a977848655ae9bd6d8ce6ac3fcef80814b1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d1cc1eee8759fb31c6c45a8a690e1a977848655ae9bd6d8ce6ac3fcef80814b1/
Threat name:
Win32.Trojan.Whispergate
Create hunting rule
Status:
Malicious
First seen:
2024-05-05 05:53:37 UTC
File Type:
PE (.Net Dll)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2hgb53uhlh5tdrwelkfgsdq2s54eqzk25g6w3dhgvq7456aicsyq._file
Verdict:
malicious
Result
Malware family:
jupyter
Create hunting rule
Score:
  10/10
Tags:
family:jupyter
Link:
https://tria.ge/reports/240509-r1vscaeg9s/
Malware Config
C2 Extraction:
146.70.158.83
Unpacked files
SH256 hash:
d1cc1eee8759fb31c6c45a8a690e1a977848655ae9bd6d8ce6ac3fcef80814b1
MD5 hash:
ac4a5b128a94bb0f05dc81d9923b49f5
SHA1 hash:
2890239152ce0e79434056049386159bca371b93
Detections:
SolarmarkerStage2
Create hunting rule
SolarMarker_loader
Create hunting rule
Link:
https://www.unpac.me/results/cd8f8aa6-92d9-4248-bfad-f9ec8cecee5d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
solarmarker
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d1cc1eee8759fb31c6c45a8a690e1a977848655ae9bd6d8ce6ac3fcef80814b1

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:Possible_Solarmarker_Backdoor_Nov2023
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Observed strings in the latest obfuscated solarmarker backdoor dll.
Reference:https://security5magics.blogspot.com/2023/10/new-solarmarker-variant-october-2023.html
Rule name:Windows_Trojan_SolarMarker_d466e548
Create hunting rule
Author:Elastic Security
Rule name:win_solarmarker_bytecodes
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in solarmarker Packer
Rule name:win_solarmarker_stage2_bytecodes_dec_2023
Create hunting rule
Author:Matthew @ Embee_Research
Description:Patterns observed in Solarmarker stage2 dll

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

Comments