MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 462f9fb435ede4892a1b4ffaadcb747825d2c361f6b153beee552ec295c48dc0. 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: 15


Intelligence 15 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 462f9fb435ede4892a1b4ffaadcb747825d2c361f6b153beee552ec295c48dc0
SHA3-384 hash: 90286674d6b720626170d9f4323208b0923c1561a06ab83b4850d2a42e780cb5597713c9c4bc770b667396a65526e45d
SHA1 hash: 7305644f24889c2d1184b1917427ef73b25b3c9d
MD5 hash: 2432a79f87ae0700a2f681bb4c80fc7d
humanhash: winter-video-zulu-football
File name:Setup NanoCore.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'560 bytes
First seen:2023-01-01 06:03:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'751 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 6144:oTEgdc0YZXbZvdo6EsRwdCO+ZSOD/A6uscEwqb8F9WQLSqYYcTR32:oTEgdfYvdo6VZksgN7S1Ycd2
Threatray 2'295 similar samples on MalwareBazaar
TLSH T1BEB46B4023F8862BE5BE1779E871052067F9F407B26BFB5F4541B1E92CA67079E40BA3
TrID 53.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.5% (.SCR) Windows screen saver (13097/50/3)
7.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter atomiczsec
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
Setup NanoCore.exe
Verdict:
Malicious activity
Analysis date:
2023-01-01 06:06:22 UTC
Tags:
quasar asyncrat
Link:
https://app.any.run/tasks/643d033d-b74a-4e4f-b5ea-4307041778a5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Bulz-9823462-0
Create hunting rule

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
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Searching for the window
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm keylogger packed quasarrat rat shell32.dll stealer vermin
Link:
https://www.filescan.io/uploads/63b12253dde391056ac0cf12/reports/0f30f29c-df88-483a-8f99-9bb77c4d6b95/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/0cfd1496-c4e5-4bd1-9d9a-71d780108523
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1143775
Signature
.NET source code references suspicious native API functions
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)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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: 776505 Sample: Setup NanoCore.exe Startdate: 01/01/2023 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for dropped file 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 7 other signatures 2->49 9 Setup NanoCore.exe 5 2->9         started        13 Setup NanoCore.exe 2 2->13         started        process3 file4 31 C:\Users\user\AppData\...31anoCore.exe, PE32 9->31 dropped 33 C:\Users\user\...\Setup NanoCore.exe.log, CSV 9->33 dropped 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->51 15 NanoCore.exe 2 9->15         started        19 schtasks.exe 1 9->19         started        signatures5 process6 dnsIp7 35 192.168.126.1, 4782 unknown unknown 15->35 37 5.165.98.151, 4782 CHEB-ASRU Russian Federation 15->37 39 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->39 41 Installs a global keyboard hook 15->41 21 schtasks.exe 1 15->21         started        23 conhost.exe 19->23         started        signatures8 process9 process10 25 conhost.exe 21->25         started        27 MpCmdRun.exe 1 23->27         started        process11 29 conhost.exe 27->29         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/462f9fb435ede4892a1b4ffaadcb747825d2c361f6b153beee552ec295c48dc0/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2023-01-01 06:04:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
33 of 40 (82.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iyxz7nbv5xsiskq3j75k3s3upas5fq3b62yvhpxokuxmffoerxaa._file
Verdict:
malicious
Similar samples:
15a42865e3b9563b0162987d9ba85a18fe6f7befb28d39daed3277434347200f
QuasarRAT
2a461a7375a8a2368f8e05d630e9da0ca7d89b41fac905ca4341a98c5c3fe2f4
QuasarRAT
2a530c0ce9e28ccef15ab536554c6e1174f33564d823e1cfcdb720c9771bb1cd
QuasarRAT
39bdcb0a0d32fc64451a18f340fa379cce0728360d1d4fad11fe91cf8e57754a
QuasarRAT
7d7fe5ce2f7924efa69717b37fbc5347686676628ac014d683dfa335803b74cb
QuasarRAT
da62dc7807475728bb6136b887b01f080eb277b575b6f95f70bb14e01d28c714
QuasarRAT
+ 2'285 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office01 spyware trojan
Link:
https://tria.ge/reports/230101-gsljlaed9s/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
192.168.126.1:4782
5.165.98.151:4782
Unpacked files
SH256 hash:
462f9fb435ede4892a1b4ffaadcb747825d2c361f6b153beee552ec295c48dc0
MD5 hash:
2432a79f87ae0700a2f681bb4c80fc7d
SHA1 hash:
7305644f24889c2d1184b1917427ef73b25b3c9d
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/2f4ecc85-f5e2-4cf8-a96f-0012ab5c14bb/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/462f9fb435ed/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/462f9fb435ede4892a1b4ffaadcb747825d2c361f6b153beee552ec295c48dc0

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_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
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

File information

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

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