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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a000979bcc8de6fa4a3cf43349cc391dfb8e994b36cd7d83a48b038af2e42439. 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


TsundereRAT


Vendor detections: 3


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

SHA256 hash: a000979bcc8de6fa4a3cf43349cc391dfb8e994b36cd7d83a48b038af2e42439
SHA3-384 hash: 88497db0b9a9aae47bc5fa9f4b5b0544aa2c5a05d233e66298489a93c294a549d58d2aadf8258cb1af45848cf9e9234e
SHA1 hash: bf8ebd190031fbea24a62bda02d764e0990919cc
MD5 hash: 1f3ffffcb77e7498f338ed88d39ba713
humanhash: washington-bacon-ohio-pasta
File name:krypton-client-1.21.1.jar
Download: download sample
Signature TsundereRAT
Create hunting rule
File size:2'923'755 bytes
First seen:2026-11-08 14:17:59 UTC
Last seen:Never
File type:Java file jar
MIME type:application/java-archive
ssdeep 49152:Ay+m79qtlT+uIxMUpxd3TTb9tHBKQQwsR64pxmCI/lvfQtbP5ktspb7yXE6ks:Aymf+uoPTb9thK0sR64WZ3QtbPq2fyXv
TLSH T1EED533481074E917ECFCD21F0264E973E80F12ED697F8F925E26D5B632F98530562A3A
TrID 57.8% (.JAR) Minecraft Fabric Mod (24020/2/4)
32.5% (.JAR) Java Archive (13500/1/2)
9.6% (.ZIP) ZIP compressed archive (4000/1)
Magika apk
Reporter wok
Tags:batch dropper jar java RAT Tsundererat

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
AT AT
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
No threats detected
Analysis date:
2026-11-08 14:22:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/42518632-b7bd-4c70-b82b-5b98e41fb679

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/97986/
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6af1c032ac89c90fc65a74a4
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Launching a service
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6af084a9e03157d690e25dc2/reports/5bbcc901-fbb2-45bb-bca4-69f6e587931d/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a000979bcc8de6fa4a3cf43349cc391dfb8e994b36cd7d83a48b038af2e42439
Result
Malware family:
n/a
Verdict:
Suspicious
Trusted hash?:
False
File:
7
Classes:
1
Nested archives:
0
Source:
https://www.jarscanner.org/
Findings
External process execution: ProcessBuilder can execute operating-system commands.
Verdict:
Unknown
File Type:
jar
Link:
https://opentip.kaspersky.com/a000979bcc8de6fa4a3cf43349cc391dfb8e994b36cd7d83a48b038af2e42439/results?tab=lookup
Result
Threat name:
n/a
Detection:
clean
Classification:
n/a
Score:
3 / 100
Link:
https://www.joesandbox.com/analysis/2000822
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a000979bcc8de6fa4a3cf43349cc391dfb8e994b36cd7d83a48b038af2e42439/
Threat name:
Package.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-11-08 14:27:01 UTC
File Type:
Package (Java)
Extracted files:
7
AV detection:
3 of 38 (7.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uaajpg6mrxtpusr46qzuttbzdx5y5gklg3gx3a5ermbyv4xeeq4q._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/261108-rmcpls1xbz/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/a000979bcc8de6fa4a3cf43349cc391dfb8e994b36cd7d83a48b038af2e42439

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:Hunt_Obfuscated_Localhost_ROT
Create hunting rule
Author:Serhii Kocherhan
Description:Detects obfuscated/rotated 127.0.0.1 strings while excluding raw plaintext
Rule name:MULTI_Malware_Unknown_ForgeAuto_b2a4008d
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (inconnu, etat binaire)

File information

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

Web download

TsundereRAT

Java file jar a000979bcc8de6fa4a3cf43349cc391dfb8e994b36cd7d83a48b038af2e42439

(this sample)

  
Dropping
TsundereRat
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/97986/

Comments