MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f. 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: 19


Intelligence 19 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f
SHA3-384 hash: 4223468eee80bb71872f611439251eb3fbdbcab713bb0880bdd423d69843da9272888dca52866cc9234672b5d81cd399
SHA1 hash: 3e7b42dd10c01f632f158cc96701f6ba49ebec48
MD5 hash: 1b27e622f4edbbdd8fc93a0d1c129607
humanhash: low-happy-floor-nineteen
File name:1b27e622f4edbbdd8fc93a0d1c129607.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2024-06-18 15:45:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'819 x AgentTesla, 19'743 x Formbook, 12'286 x SnakeKeylogger)
ssdeep 49152:kvHI22SsaNYfdPBldt698dBcjHn30LdBhJo2d/UTHHB72eh2NT:kvo22SsaNYfdPBldt6+dBcjH30nv
TLSH T10EE54B1477F85E23E1ABE277E5B0541263F0EC2EB363EB0B6191667E1C53B4098417AB
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 abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
94.228.166.40:4782

Intelligence

File Origin
# of uploads :
1
# of downloads :
425
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
http://91.246.41.86/KR6nDu9fLhop1bFe.exe
Verdict:
Malicious activity
Analysis date:
2024-06-18 13:27:55 UTC
Tags:
rat asyncrat remote quasar evasion
Link:
https://app.any.run/tasks/ca57c321-1c6c-474c-bbb1-a280782b4e45

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
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

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6671ad0e0f8138dd4eadd2e3win7simulatehigh_evasion
Tags:
Encryption Execution Generic Network Stealth Msil Quasarstealer
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
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Connection attempt
Sending a custom TCP request
Setting a keyboard event handler
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun by creating a file
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/6671abbdef9fdf64aa6c6e8d/reports/609eec22-8fce-4bc6-910f-fbe3dc2ae8e0/overview
Verdict:
Malicious
Labled as:
Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f
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/e11fed9d-c72e-45db-8b56-666d0e7e688e
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1458986
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 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
Snort IDS alert for network traffic
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
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-06-09 02:01:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=czhbtvemru7nii6u2tdi372hrgptow3o6tzke4afkyxbnm5i2m7q._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/240618-s7lzfstgrn/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
94.228.166.40:4782
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/473efa52-6091-4c18-8622-efb430ee9f20
Unpacked files
SH256 hash:
164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f
MD5 hash:
1b27e622f4edbbdd8fc93a0d1c129607
SHA1 hash:
3e7b42dd10c01f632f158cc96701f6ba49ebec48
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/cc621a24-57c9-42d5-b9bd-90f4ec47656d/
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/164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f

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:quasarrat
Create hunting rule
Author:jeFF0Falltrades
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:Windows_Generic_Threat_803feff4
Create hunting rule
Author:Elastic Security
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 164e19d48c8d3ed423d4d4c68dff47899f375b6ef4f2a27005562e16b3a8d33f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2895681/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2895683/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments