MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b555cc7919a0b90376cba6919e10d1dc8f78f7c67b566c30aaaed3c1b5942d93. 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


Plugx


Vendor detections: 8


Intelligence 8 IOCs YARA 85 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b555cc7919a0b90376cba6919e10d1dc8f78f7c67b566c30aaaed3c1b5942d93
SHA3-384 hash: 0e437da051b2f37216b24113d879685b8bfac5174242eaf85a51a606315018fbcfb4abe6484c380fd37f6fe8010a42c1
SHA1 hash: 3d05f8021b0220d043f552bbf46bb16b1f5c0340
MD5 hash: 394ffd6691223ae83300f903a8ae730d
humanhash: green-arkansas-quiet-michigan
File name:Chronos.zip
Download: download sample
Signature Plugx
Create hunting rule
File size:32'984'015 bytes
First seen:2025-08-06 07:35:28 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 786432:gw300DLJ0PxRTfA/uuHfH9ZxzuskGZlypHE5gpLgBA1WKfNwxvT9:gwHDmnTfA/uu/dZxaK+HEseAoKfNwRx
TLSH T1F4773359D4B96BCB60376436AE72B9C183F7A27FB603061F7198037B07C660572EE498
Magika zip
Reporter Vip5676
Tags:Plugx zip

Intelligence

File Origin
# of uploads :
1
# of downloads :
58
Origin country :
UA UA
File Archive Information

This file archive contains 6 file(s), sorted by their relevance:

File name:Setup.exe
File size:65'708'088 bytes
SHA256 hash: 93f39d2c9ba3884e450052296725746f57c8f922b5a1cc64d8af33f315ef9292
MD5 hash: a0914b75b32702038ef314417ceb315d
MIME type:application/x-dosexec
Signature Plugx
File name:vstdlib_s64.dll
File size:5'108'224 bytes
SHA256 hash: ed4aa432fb4f138bfb3aa60f3ceae1054a8882295f9ce9ce75290c0fe16b1769
MD5 hash: 964a139640199e709b1bfdbec679821d
MIME type:application/x-dosexec
Signature Plugx
File name:msvcp290.dll
File size:3'748'864 bytes
SHA256 hash: 84255595956c98b371bf24d1a6d41f8f69daa0be3d913a49887c467ec3bb65bd
MD5 hash: bda101bb10ae2f6d573c6cc0230d0c54
MIME type:application/x-dosexec
Signature Plugx
File name:nasrallah_x86.dll
File size:449'549 bytes
SHA256 hash: 1d5b2ba0a99228befaad231171fdf7f8ccbf2f7a4685b2b3829df112ee70284a
MD5 hash: 2e3d4cab5dd86cc6e536162d70613d46
MIME type:application/octet-stream
Signature Plugx
File name:tier0_s64.dll
File size:422'496 bytes
SHA256 hash: 87b2d5cd0f667d8f72468ffd146dcf2aebdf7e65db575c04ffe6a4df9c1f1850
MD5 hash: de738f87b7a558476d73d590ea20a3b9
MIME type:application/x-dosexec
Signature Plugx
File name:_RDATA
File size:512 bytes
SHA256 hash: 1b5fc65032f0c45c82f9fd73095232510dd966940e26ccb848565fee2f5169d2
MD5 hash: e952887a606d908f1b9f1d93afd2251d
MIME type:application/octet-stream
Signature Plugx
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68908d77af3050dc8d342671
Tags:
emotet
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive lolbin microsoft_visual_cc signed vsjitdebugger
Link:
https://www.filescan.io/uploads/689306a32fbe0788fb1a8acb/reports/4aa6f6ac-1ac1-40cc-a5e0-e2212251a3f3/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b555cc7919a0b90376cba6919e10d1dc8f78f7c67b566c30aaaed3c1b5942d93
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b555cc7919a0b90376cba6919e10d1dc8f78f7c67b566c30aaaed3c1b5942d93
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Score:
99%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/b555cc7919a0b90376cba6919e10d1dc8f78f7c67b566c30aaaed3c1b5942d93
Gathering data
Threat name:
Win64.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2025-08-06 07:39:47 UTC
File Type:
Binary (Archive)
Extracted files:
13
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvk4y6izuc4qg5wlu2iz4egr3shxr56gpnlgymfkv3j4dnmufwjq._file
Result
Malware family:
rhadamanthys
Create hunting rule
Score:
  10/10
Tags:
family:rhadamanthys discovery
Link:
https://tria.ge/reports/250806-jg4bdaeq8t/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b555cc7919a0b90376cba6919e10d1dc8f78f7c67b566c30aaaed3c1b5942d93

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:ach_202409_html_FedEx_phish
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Author:abuse.ch
Description:Detects potential HTML FedEx phishing forms
Rule name:Agent_BTZ
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Rule name:APT_Bitter_ZxxZ_Downloader
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Author:SECUINFRA Falcon Team (@SI_FalconTeam)
Description:Detects Bitter (T-APT-17) ZxxZ Downloader
Reference:https://www.secuinfra.com/en/techtalk/whatever-floats-your-boat-bitter-apt-continues-to-target-bangladesh
Rule name:attack_India
Create hunting rule
Rule name:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_plaintext_c2
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Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:ComRAT
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Indicator_MiniDumpWriteDump
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Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:Jupyter_infostealer
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Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:ldpreload
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Author:xorseed
Reference:https://stuff.rop.io/
Rule name:malware_PlugX_config
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect PlugX in memory
Reference:internal research
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
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Author:malware-lu
Rule name:Nexe
Create hunting rule
Author:nwunderly
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PlugX
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Author:JPCERT/CC Incident Response Group
Description:detect PlugX in memory
Reference:internal research
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:reverse_http
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Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
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Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Sus_CMD_Powershell_Usage
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Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:ThreadControl__Context
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:WHIRLPOOL_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for WhirlPool constants
Rule name:win_amadey_bytecodes_oct_2023
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Author:Matthew @ Embee_Research
Rule name:win_karius_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
Rule name:WIN_WebSocket_Base64_C2_20250726
Create hunting rule
Author:dogsafetyforeverone
Description:Detects configuration strings used by malware to specify WebSocket command-and-control endpoints inside Base64-encoded data. It looks for prefixes such as '#ws://' or '#wss://' that were found in QuasarRAT configuration data.
Rule name:without_attachments
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Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the no presence of any attachment
Reference:http://laboratorio.blogs.hispasec.com/
Rule name:with_urls
Create hunting rule
Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the presence of an or several urls
Reference:http://laboratorio.blogs.hispasec.com/

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments