MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab8674f0baf9cc51bdb639626664be6917a3682aa7ea25b7c233b673800513b0. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments
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SHA256 hash: ab8674f0baf9cc51bdb639626664be6917a3682aa7ea25b7c233b673800513b0
SHA3-384 hash: 25e989f3cc561d6bfa9c85ed36b06c13595e1ea7f0a5b1660dc11694c0a66fa0436940e885618aed555215eb1b141bb6
SHA1 hash: 5dba9beed50520095333165ef9f54a98f975ef7d
MD5 hash: 97cafa10422a4f6810ab44ec48bad092
humanhash: lemon-maryland-cold-batman
File name:file.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:670'736 bytes
First seen:2023-06-28 14:18:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:gnPRHDHwAvV3eFnr3xEf2CBJDNd16u8j2hZWQLdovThkXbemC:MHwsVM3xE+CBV1JQQLdov14emC
Threatray 10 similar samples on MalwareBazaar
TLSH T109E4F1542B96AED0E7998538FCBA596C56B081BE811AEFBB38D464F46CC634073052CF
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
308
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
quasar
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ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-06-28 14:24:18 UTC
Tags:
evasion quasar
Link:
https://app.any.run/tasks/a3d907f7-3aec-4327-b98b-74c579517125

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/403503/
Detection(s):
Win.Packed.Formbook-9980347-1
Create hunting rule

Win.Packed.Cerbu-9993871-0
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Win.Dropper.Formbook-9993903-0
Create hunting rule

Win.Packed.Generic-6680913-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmstp lolbin overlay packed
Link:
https://www.filescan.io/uploads/649c4159f4ab9b52f3dc2301/reports/f9b6fb4c-533a-4813-8735-499f90eabf1a/overview
Verdict:
Malicious
Labled as:
Trojan.E1CAE469
Link:
https://www.hybrid-analysis.com/sample/ab8674f0baf9cc51bdb639626664be6917a3682aa7ea25b7c233b673800513b0
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.
Malware family:
Quasar RAT
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/64ce279d-e350-4170-8ec4-d43cf99b9fac
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1262706
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files with benign system names
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Schedule system process
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses cmd line tools excessively to alter registry or file data
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 895736 Sample: file.exe Startdate: 28/06/2023 Architecture: WINDOWS Score: 100 51 q1q1qa.ddns.net 2->51 53 ip-api.com 2->53 55 Snort IDS alert for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 12 other signatures 2->61 9 file.exe 1 5 2->9         started        13 svchost.exe 2 2->13         started        15 svchost.exe 2 2->15         started        signatures3 process4 file5 47 C:\Users\user\AppData\Roaming\svchost.exe, PE32+ 9->47 dropped 49 C:\Users\user\AppData\Local\...\file.exe.log, CSV 9->49 dropped 65 Drops PE files with benign system names 9->65 17 cmd.exe 1 9->17         started        19 cmd.exe 1 9->19         started        67 Multi AV Scanner detection for dropped file 13->67 69 Machine Learning detection for dropped file 13->69 71 Uses cmd line tools excessively to alter registry or file data 13->71 22 ServiceModelReg.exe 13->22         started        24 SMSvcHost.exe 13->24         started        26 aspnet_compiler.exe 13->26         started        73 Writes to foreign memory regions 15->73 75 Injects a PE file into a foreign processes 15->75 signatures6 process7 signatures8 28 svchost.exe 3 17->28         started        31 conhost.exe 17->31         started        33 timeout.exe 1 17->33         started        63 Uses schtasks.exe or at.exe to add and modify task schedules 19->63 35 conhost.exe 19->35         started        37 schtasks.exe 1 19->37         started        process9 signatures10 77 Uses cmd line tools excessively to alter registry or file data 28->77 39 cvtres.exe 28->39         started        41 mscorsvw.exe 28->41         started        43 aspnet_regsql.exe 28->43         started        45 28 other processes 28->45 process11
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ab8674f0baf9cc51bdb639626664be6917a3682aa7ea25b7c233b673800513b0/
Threat name:
ByteCode-MSIL.Trojan.Dotrunpex
Create hunting rule
Status:
Malicious
First seen:
2023-06-28 14:19:06 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
3
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vodhj4f27hgfdpnwhfrgmzf6nel2g2bku7vcln6cgo3hhaafcoya._file
Verdict:
malicious
Similar samples:
06dc6394565b70ac8efd2cc98225cf3ec9b5f7711e036189b186340c591e4f67
QuasarRAT
1201be819db6d09ce9bd23656c5bbd7430e0420f30c39afe37b3a4662581f143
QuasarRAT
2bc364e692d47380f0e7bf27be5f0ec731195552ff3b8951bd5409f18fa803e7
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3e24e97aba6e7432395abc346ee3484b9dbadbe803a046a84ea41529d6ed8c89
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65831b6a853bb664e7f189003da9cdda832e5bcf647c1e262b3bc80acb715814
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670bc9a86f72af2ab43a89c576a4e1874ce188b35a1f5656ea27f4b7ac3d5f09
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838ce5b36c1e435c66278140a5ba8c1468f5e844f8cd8dd4aa330c5640b56053
QuasarRAT
9cd9994b0c9c1e3c8e2cc7892d3d411061d006fd01a1f62c364076f4466deb0e
QuasarRAT
c23de2111100cc918a38101d4594b79977aaa9c7be5e58de36ac61aef226c465
QuasarRAT
cb9bb8d4b50cb8090ecf8af646e8b691a9c8cdd3dc0b40a217af4b84e08f7563
QuasarRAT
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:wd persistence spyware trojan
Link:
https://tria.ge/reports/230628-rmtywsag4v/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
q1q1qa.ddns.net:4782
Unpacked files
SH256 hash:
ab8674f0baf9cc51bdb639626664be6917a3682aa7ea25b7c233b673800513b0
MD5 hash:
97cafa10422a4f6810ab44ec48bad092
SHA1 hash:
5dba9beed50520095333165ef9f54a98f975ef7d
Link:
https://www.unpac.me/results/fc8bb48c-16d3-40ca-bbbb-d9dce8d85f8d/
Malware family:
xRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ab8674f0baf9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ab8674f0baf9cc51bdb639626664be6917a3682aa7ea25b7c233b673800513b0

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:BAZT_B5_NOCEXInvalidStream
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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/403503/

Comments