MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a3a8abd7f6d5fd9adfb51703085e839781cffc341705123be40b0c146dcf0a9. 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: 14


Intelligence 14 IOCs 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a3a8abd7f6d5fd9adfb51703085e839781cffc341705123be40b0c146dcf0a9
SHA3-384 hash: adde3512476e9005a5a0a7a06f5a0840c151ecdf2171b40608e9d1ca6d2ffd3d1c40c30d84df90cd715c1b82be74c3d2
SHA1 hash: dd4a9ddf2b84b3f500cc4a54f08aac1c00fc54cc
MD5 hash: 97532a90b14c6d0084fa2193982358bf
humanhash: stairway-beer-bulldog-four
File name:shitgame.bin
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2022-06-20 17:16:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 6144:JTEgdc0YtX7IxUpGREWCvnfneqgZXrO1uvkAlcEY3fb8FgEjOjlhTcZ96cTR3J:JTEgdfY2xUZmXDE8HjM7Ta96cdJ
Threatray 1'549 similar samples on MalwareBazaar
TLSH T195B46D4067F88527E1AE577AE87104319BF5F807B26BEF4F4A40A2F92C6670A9D40773
TrID 53.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.6% (.SCR) Windows screen saver (13101/52/3)
7.7% (.EXE) Win64 Executable (generic) (10523/12/4)
4.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter KdssSupport
Tags:exe QuasarRAT

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
67.241.61.219:4782 https://threatfox.abuse.ch/ioc/717234/

Intelligence

File Origin
# of uploads :
1
# of downloads :
301
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
shitgame.exe
Verdict:
Malicious activity
Analysis date:
2022-06-20 16:55:55 UTC
Tags:
trojan rat quasar asyncrat
Link:
https://app.any.run/tasks/ae7a66f8-ff53-4ac1-b9cb-5659a50efac7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/281695/
Detection(s):
Win.Malware.Generic-9883082-0
Create hunting rule

Win.Malware.Generic-9883083-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Sending a custom TCP request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm greyware keylogger packed quasarrat rat shell32.dll stealer
Link:
https://www.filescan.io/uploads/62b0abd08e2643f17a9d8e44/reports/d698d97e-0688-462a-bfef-e4833785c266/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/8eb4fc44-1fb2-4726-8f05-2ee3b1c8f4a8
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1016533
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Schedule system process
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 649027 Sample: shitgame.bin Startdate: 20/06/2022 Architecture: WINDOWS Score: 100 29 Malicious sample detected (through community Yara rule) 2->29 31 Antivirus detection for dropped file 2->31 33 Antivirus / Scanner detection for submitted sample 2->33 35 8 other signatures 2->35 8 shitgame.exe 5 2->8         started        12 shitgame.exe 2 2->12         started        process3 file4 25 C:\Users\user\AppData\Roaming\...\taskmgr.exe, PE32 8->25 dropped 27 C:\Users\user\AppData\...\shitgame.exe.log, ASCII 8->27 dropped 37 Uses schtasks.exe or at.exe to add and modify task schedules 8->37 39 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->39 14 taskmgr.exe 2 8->14         started        17 schtasks.exe 1 8->17         started        signatures5 process6 signatures7 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->41 19 schtasks.exe 1 14->19         started        21 conhost.exe 17->21         started        process8 process9 23 conhost.exe 19->23         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4a3a8abd7f6d5fd9adfb51703085e839781cffc341705123be40b0c146dcf0a9/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2022-06-20 17:17:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ji5ivpl7nvp5tlp3kfydbbpihf4bz76difyfci56icymcrw46cuq._file
Verdict:
malicious
Similar samples:
2acbe411d9169a8ea08c2f54cec03901956e3a1a5c80a0153ebe09792961b549
QuasarRAT
419a43cd026621eb0fb785f00fc7b502bd865e0cae5a65b540b03a12673f38d6
QuasarRAT
76deb78a7177f1e80420103e59ce406209d3c9b8f3b8541034bd18dda4fd1393
QuasarRAT
965a8d621907f2a2c04e8ca84801f448c68e133491b26d5336c851059db5b3ec
QuasarRAT
991e1506dfacc786546d890dc72ed38393ce901592c60d236304998c8e7026d7
QuasarRAT
d328076556526a90907af4a328621d490307be0ff3ff79b14ed8a9c978f9440f
QuasarRAT
+ 1'539 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:disc 2.0 spyware suricata trojan
Link:
https://tria.ge/reports/220620-vtpvasabe9/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Looks up external IP address via web service
Executes dropped EXE
Quasar Payload
Quasar RAT
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Observed Malicious SSL Cert (Quasar CnC)
Malware Config
C2 Extraction:
67.241.61.219:4782
Unpacked files
SH256 hash:
4a3a8abd7f6d5fd9adfb51703085e839781cffc341705123be40b0c146dcf0a9
MD5 hash:
97532a90b14c6d0084fa2193982358bf
SHA1 hash:
dd4a9ddf2b84b3f500cc4a54f08aac1c00fc54cc
Link:
https://www.unpac.me/results/faf75eeb-bba9-4f7b-b862-8e606b30fd57/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4a3a8abd7f6d5fd9adfb51703085e839781cffc341705123be40b0c146dcf0a9

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_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_Lokibot_Stealer
Create hunting rule
Description:Detects Lokibot Stealer Variants
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
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.

Cape
Cape
https://www.capesandbox.com/analysis/281695/

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