MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9
SHA3-384 hash: 7cb03980e56d7dc47a3e9bae368861a86aefb7e755e11d7f2de509607898c32a778386a81398727874184ac27a2022eb
SHA1 hash: e9c5420cfd65c201b054ad55939474cba4ee502e
MD5 hash: 62be604349ff7f6efcaa163f2ccdfb06
humanhash: spaghetti-apart-lemon-lemon
File name:Helpertask.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'899'456 bytes
First seen:2024-01-28 16:48:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:l0phDQQGj33SmdY5sKfLeG2QRaLaOHb9sE0zf9mFDjUf70Bza32ehyfTqm:l0XQQGj33SGmsKfLeG2QRaGO79sE0zfs
TLSH T11DD54A1437F80E2BE46FE7B2E5B1102667F1F81AB3A3EB4B218166791D53B405D412BB
TrID 37.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
29.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
8.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
6.7% (.SCR) Windows screen saver (13097/50/3)
5.3% (.EXE) Win64 Executable (generic) (10523/12/4)
Reporter 1ZRR4H
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
326
Origin country :
CL CL
Vendor Threat Intelligence
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/473274/
Detection(s):
Win.Malware.Bulz-9823462-0
Create hunting rule

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

Win.Malware.Msilheracles-9900242-0
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
Creating a window
Сreating synchronization primitives
Setting a keyboard event handler
Sending a custom TCP request
DNS request
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm certreq crypto expand explorer hook infostealer keylogger lolbin quasar quasarrat rat remote schtasks stealer stealer
Link:
https://www.filescan.io/uploads/65b6857f814c2aeb1482ae8c/reports/896e05c8-1b64-4e27-9944-1a8781e87e77/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c1413f8c-51bf-47f0-b46f-c84951a24cb6
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1382335
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-01-21 16:49:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cxjhu3xna77bor4dlx2j5ch5qa6nwbiyoyne5l6bdruuwwuh5s4q._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:usb1 spyware trojan
Link:
https://tria.ge/reports/240128-vbm8radhf6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Enumerates physical storage devices
Looks up external IP address via web service
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
91.92.254.14:4412
Unpacked files
SH256 hash:
15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9
MD5 hash:
62be604349ff7f6efcaa163f2ccdfb06
SHA1 hash:
e9c5420cfd65c201b054ad55939474cba4ee502e
Detections:
QuasarRAT
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
win_quasarrat_j2
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Link:
https://www.unpac.me/results/e6d90e20-0d34-4c43-b1b1-07e0833bef47/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/15d27a6eed07/report/overview.html
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/15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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 artifacts observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information

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

Web download

QuasarRAT

Executable exe 15d27a6eed07fe1747835df49e88fd803cdb0518761a4eafc11c694b5a87ecb9

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/473274/
  
URLhaus
https://urlhaus.abuse.ch/url/2752869/
  
Delivery method
Distributed via web download

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