MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0. 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


STRRAT


Vendor detections: 7


Intelligence 7 IOCs 1 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0
SHA3-384 hash: 248b50660d0530bd9b24f8ecf37e8a585ed152efd6f4aec319f8be7b176cb5c82d244beb52b5310951b624c552336dd9
SHA1 hash: 87a3f552568e6b5209fb8b44c2c6c0b50c8ca46f
MD5 hash: 0326cd8bc7583d4ef9bd89e158f504e4
humanhash: lake-stream-paris-florida
File name:INV32762.jar
Download: download sample
Signature STRRAT
Create hunting rule
File size:203'538 bytes
First seen:2025-01-23 22:40:04 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 3072:HEythVs8HXV0aq4fKjV/36nipUuAVfgSBfQWyn2wV6Vs21dl+ZXJCU7XRQ:HEEhVs8lrKkieuiBly2GMsodgXMgXRQ
TLSH T19E14AE10BF40A072E6A36076115DD21AF8B4E8EF826CA29B0FF1EC5DEC59C550F42BD9
TrID 77.1% (.JAR) Java Archive (13500/1/2)
22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika jar
Reporter abuse_ch
Tags:jar STRRAT


Avatar
abuse_ch
STRRAT C2:
154.216.16.38:1980

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
154.216.16.38:1980 https://threatfox.abuse.ch/ioc/1392437/

Intelligence

File Origin
# of uploads :
1
# of downloads :
494
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
strrat
Create hunting rule
ID:
1
File name:
malwares.jar
Verdict:
Malicious activity
Analysis date:
2025-01-23 22:45:05 UTC
Tags:
java evasion strrat rat remote
Link:
https://app.any.run/tasks/a41ec361-43e2-4796-918d-a6eb9bc4611b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Verdict:
Unknown
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6792c581cf164a47bc8e328b/reports/2ce21703-d101-452a-a12a-19b3ed755e34/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0
Result
Threat name:
Caesium Obfuscator, STRRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1598115
Signature
Creates autostart registry keys to launch java
Exploit detected, runtime environment starts unknown processes
Found malware configuration
Joe Sandbox ML detected suspicious sample
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Suspicious Startup Folder Persistence
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Caesium Obfuscator
Yara detected STRRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1598115 Sample: INV32762.jar Startdate: 23/01/2025 Architecture: WINDOWS Score: 96 69 www.kposlifestyle.design 2->69 71 ip-api.com 2->71 73 18.31.95.13.in-addr.arpa 2->73 79 Suricata IDS alerts for network traffic 2->79 81 Found malware configuration 2->81 83 Yara detected Caesium Obfuscator 2->83 85 4 other signatures 2->85 10 cmd.exe 2 2->10         started        13 javaw.exe 2 2->13         started        15 javaw.exe 2->15         started        17 3 other processes 2->17 signatures3 process4 signatures5 89 Uses schtasks.exe or at.exe to add and modify task schedules 10->89 19 java.exe 2 13 10->19         started        23 conhost.exe 10->23         started        process6 file7 63 C:\Users\user\AppData\...\INV32762.jar, Zip 19->63 dropped 65 C:\Users\user\AppData\Roaming\INV32762.jar, Zip 19->65 dropped 67 C:\ProgramData\Microsoft\...\INV32762.jar, Zip 19->67 dropped 87 Creates autostart registry keys to launch java 19->87 25 java.exe 4 19->25         started        28 cmd.exe 1 19->28         started        30 icacls.exe 1 19->30         started        signatures8 process9 dnsIp10 75 www.kposlifestyle.design 154.216.16.38, 1980, 49704 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 25->75 77 ip-api.com 208.95.112.1, 49705, 80 TUT-ASUS United States 25->77 32 cmd.exe 1 25->32         started        34 cmd.exe 1 25->34         started        36 cmd.exe 1 25->36         started        44 2 other processes 25->44 38 conhost.exe 28->38         started        40 schtasks.exe 1 28->40         started        42 conhost.exe 30->42         started        process11 process12 46 WMIC.exe 1 32->46         started        49 conhost.exe 32->49         started        51 WMIC.exe 1 34->51         started        53 conhost.exe 34->53         started        55 WMIC.exe 1 36->55         started        57 conhost.exe 36->57         started        59 WMIC.exe 1 44->59         started        61 conhost.exe 44->61         started        signatures13 91 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 46->91
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uxknmzcpjqh3vtjxqgrncuphnpgulxrnudn7iwglvbfy4ngjyhia._file
Result
Malware family:
strrat
Create hunting rule
Score:
  10/10
Tags:
family:strrat persistence stealer trojan
Link:
https://tria.ge/reports/250123-2l3jraylfp/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Adds Run key to start application
Looks up external IP address via web service
Drops startup file
STRRAT
Strrat family
Malware Config
C2 Extraction:
www.kposlifestyle.design:1980
127.0.0.1:1980
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
STRRAT
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0

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:STRRAT
Create hunting rule
Author:NDA0E
Description:Detects STRRAT config filename
Rule name:strrat_jar_v1
Create hunting rule
Author:RandomMalware
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Comments