MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84a5f6bd4a13a1926ab7e242b88c8956857be6bc2a4c2d4faa27949c3b3483db. 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


QuasarRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 84a5f6bd4a13a1926ab7e242b88c8956857be6bc2a4c2d4faa27949c3b3483db
SHA3-384 hash: 8cac64e17dccdd85656f074f15a94f5724db2b154aa2e8371643b7a41683f0a3247f9d1e94991473c753446b585a3958
SHA1 hash: 32341d4f8f9a7909548fe4eab7e312bd4d31d080
MD5 hash: d488111b5889a3a84c275a33ea54a28a
humanhash: ack-music-nuts-spring
File name:d488111b5889a3a84c275a33ea54a28a.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:291'328 bytes
First seen:2021-12-28 07:18:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:68TD8a1isjeYoalE5Y7cHVSQni42WAt4WfIiZukHnWSlG6A:6UoaU5FSQnlKL35A
Threatray 352 similar samples on MalwareBazaar
TLSH T17054C5A556CFC19BD1AEBE39808BE95436074EFE7D457204218FBA90FCFDA0C4C9A158
File icon (PE):PE icon
dhash icon f8e4c688b4e4e8a4 (3 x QuasarRAT)
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
226
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d488111b5889a3a84c275a33ea54a28a.exe
Verdict:
Malicious activity
Analysis date:
2021-12-28 07:22:12 UTC
Tags:
evasion trojan rat quasar
Link:
https://app.any.run/tasks/84a94ed4-2ce3-4f4a-abaf-3602f61873a3

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/216659/
Result
Verdict:
Clean
Maliciousness:

Behaviour
DNS request
Сreating synchronization primitives
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61caba6a8991ba72b39c47f4/reports/7bf9113c-a081-4864-816f-f8b91081ab31/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cfb98b78-609a-41f4-a490-c3a53a085316
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/913383
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Writes to foreign memory regions
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 545861 Sample: bY3TKrzBS3.exe Startdate: 28/12/2021 Architecture: WINDOWS Score: 100 53 Multi AV Scanner detection for domain / URL 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 8 other signatures 2->59 6 bY3TKrzBS3.exe 16 8 2->6         started        11 wuapihost.exe 14 5 2->11         started        13 wuapihost.exe 2 2->13         started        15 wuapihost.exe 2->15         started        process3 dnsIp4 43 js-hurling.com 192.185.113.96, 49747, 49765, 49774 UNIFIEDLAYER-AS-1US United States 6->43 45 www.js-hurling.com 6->45 25 C:\Users\user\AppData\...\wuapihost.exe, PE32 6->25 dropped 27 C:\Users\user\AppData\...\bY3TKrzBS3.exe, PE32 6->27 dropped 29 C:\Users\...\wuapihost.exe:Zone.Identifier, ASCII 6->29 dropped 35 2 other malicious files 6->35 dropped 69 Writes to foreign memory regions 6->69 71 Allocates memory in foreign processes 6->71 73 Injects a PE file into a foreign processes 6->73 17 bY3TKrzBS3.exe 2 6->17         started        47 www.js-hurling.com 11->47 31 C:\Users\user\AppData\Local\...\wuapihost.exe, PE32 11->31 dropped 33 C:\Users\...\wuapihost.exe:Zone.Identifier, ASCII 11->33 dropped 21 wuapihost.exe 2 11->21         started        49 192.168.2.1 unknown unknown 13->49 51 www.js-hurling.com 13->51 23 wuapihost.exe 13->23         started        file5 signatures6 process7 dnsIp8 37 artedriendfrim.hopto.org 2.56.57.210, 49759, 49768, 61857 GBTCLOUDUS Netherlands 17->37 39 famesurvelizerditis.sytes.net 17->39 41 2 other IPs or domains 17->41 61 Multi AV Scanner detection for dropped file 17->61 63 May check the online IP address of the machine 17->63 65 Machine Learning detection for dropped file 17->65 67 2 other signatures 17->67 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/84a5f6bd4a13a1926ab7e242b88c8956857be6bc2a4c2d4faa27949c3b3483db/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-12-28 00:37:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
0294e192621b21d5c8f2288496930fe5e947fd66cdff1a119ca2f8bbdd8a537e
QuasarRAT
30c2c6ab4ddd7c5bcd0da13b6b6d7dff544bfb369f6c8a0c3825e54a8852059c
QuasarRAT
402764c90c870fa2eb17282ffeffe95e8439d3622976d7391ee9cd1d43d491cd
QuasarRAT
90903999baa70b0965698675e67612c0d16ef890394fa822cc11b8b7af8f7ee5
QuasarRAT
9296f2fd6c9ff54bdc0239603238d89347ece6efd3fa75aa2b4baedac90c5f3a
QuasarRAT
a907be84fd31c3e486573199a29ebc2624310b18a4872ffe5ab9f45d74af58ec
QuasarRAT
fd1d2de482925060b31bf7aed80909ff2c8f4a5bfa61f8679e70d5670e9bb67e
QuasarRAT
fdddb3226bd01d7623ee1e778326b70acb4a4a88f2284d2f8a7a49af7e8c6edf
QuasarRAT
fec56ffb3c5a61bffba235044da127eae17d9772dbd3817b8a5ce8cad0e93cb1
QuasarRAT
+ 342 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:woon2 persistence spyware trojan
Link:
https://tria.ge/reports/211228-h5jffadef3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
famesurvelizerditis.sytes.net:61857
tancesucesm.chickenkiller.com:61857
artedriendfrim.hopto.org:61974
Unpacked files
SH256 hash:
84a5f6bd4a13a1926ab7e242b88c8956857be6bc2a4c2d4faa27949c3b3483db
MD5 hash:
d488111b5889a3a84c275a33ea54a28a
SHA1 hash:
32341d4f8f9a7909548fe4eab7e312bd4d31d080
Link:
https://www.unpac.me/results/914bb78c-b9ec-48e0-ad3d-134f191c4601/
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/84a5f6bd4a13a1926ab7e242b88c8956857be6bc2a4c2d4faa27949c3b3483db

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

QuasarRAT

Executable exe 84a5f6bd4a13a1926ab7e242b88c8956857be6bc2a4c2d4faa27949c3b3483db

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1925489/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/216659/

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