MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12. 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: 18


Intelligence 18 IOCs YARA 20 File information Comments
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SHA256 hash: 2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
SHA3-384 hash: 5efd6b1f01e7860c7977c04c8ebaa99ed353da7a56d07edbc18f05e3226e20777223e3a1055cd46b189f30d65860d4a9
SHA1 hash: f68451dece1943443ac6a77cceb4bb447eaeb5dc
MD5 hash: 1a9fc6d523ce020286a56241c37badcf
humanhash: india-london-salami-victor
File name:Client.exe
Download: download sample
Signature QuasarRAT
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File size:3'266'048 bytes
First seen:2024-01-09 14:40:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 49152:fvLlL26AaNeWgPhlmVqvMQ7XSKwXRJ6abR3LoGdu5THHB72eh2NT:fvxL26AaNeWgPhlmVqkQ7XSKwXRJ60
TLSH T172E56B143BF85E27E1BBE277E5B0041267F0FC1AB363EB0B6581677A1C53B5098426A7
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 smica83
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
330
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
quasar
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ID:
1
File name:
2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12.exe
Verdict:
Malicious activity
Analysis date:
2024-01-09 14:41:59 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/722308d0-532f-4e4d-b1ba-fdfdd97c15e9

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/470068/
Detection(s):
Win.Malware.Generic-9883083-0
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Win.Malware.Msilheracles-9900242-0
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ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
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Win.Packed.Downeks-6898097-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
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 control crypto expand explorer hook infostealer keylogger lolbin quasar quasarrat rat remote replace schtasks stealer stealer
Link:
https://www.filescan.io/uploads/659d5b1799da41ccd7cc2fac/reports/4e5b25bf-4020-42c6-8c21-914412dbdd4d/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Quasar
Link:
https://www.hybrid-analysis.com/sample/2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
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/9c74668d-34f3-4d28-8e73-dcd4a4d8b6a7
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1371865
Signature
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
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: 1371865 Sample: Client.exe Startdate: 09/01/2024 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus detection for dropped file 2->34 36 8 other signatures 2->36 8 Client.exe 5 2->8         started        12 Realtek.exe 3 2->12         started        process3 file4 26 C:\Users\user\AppData\Roaming\...\Realtek.exe, PE32 8->26 dropped 38 Uses schtasks.exe or at.exe to add and modify task schedules 8->38 40 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->40 14 Realtek.exe 2 8->14         started        18 schtasks.exe 1 8->18         started        signatures5 process6 dnsIp7 28 192.168.0.117, 5952 unknown unknown 14->28 42 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->42 44 Installs a global keyboard hook 14->44 20 schtasks.exe 1 14->20         started        22 conhost.exe 18->22         started        signatures8 process9 process10 24 conhost.exe 20->24         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
Detection:
quasar
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Link:
https://mwdb.cert.pl/sample/2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-01-09 07:31:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f5ir2k2qqkqfto6fnxoxrm5c3prcdfa7oc2c2htxidn5zvffxyja._file
Verdict:
malicious
Result
Malware family:
quasar
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Score:
  10/10
Tags:
family:quasar botnet:yadu desktop
Link:
https://tria.ge/reports/240109-r2e4aadhc7/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Malware Config
C2 Extraction:
192.168.0.117:5952
Unpacked files
SH256 hash:
2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
MD5 hash:
1a9fc6d523ce020286a56241c37badcf
SHA1 hash:
f68451dece1943443ac6a77cceb4bb447eaeb5dc
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
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_GENInfoStealer
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Link:
https://www.unpac.me/results/dd44509b-529c-47ed-8900-b93804381aec/
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/2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12

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
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Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Diff_QuasarRAT_01
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Author:schmidtsz
Description:Identify QuasarRAT samples
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
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
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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.

Cape
Cape
https://www.capesandbox.com/analysis/470068/

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