MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ed4cbfe246783bd7a7d124ac8f67e208f968a805264c3c6883fe77ac8fc4e72c. 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: 17


Intelligence 17 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ed4cbfe246783bd7a7d124ac8f67e208f968a805264c3c6883fe77ac8fc4e72c
SHA3-384 hash: c165132f86a34b5482f8aa70278244a27699f6c8eb3b35a88a05c70aba8ca3449e5088fc9f0f385f4ceade1b8ba62665
SHA1 hash: 8c7fa34eb9536c54bdb49939881a5010cd33eb9b
MD5 hash: 6e9a5eb6cf78a859c57f941b97e1fa15
humanhash: cup-yankee-alanine-chicken
File name:OperaSetup.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:6'315'008 bytes
First seen:2023-07-23 10:26:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 98304:jGh5ziNlRUaub+MPDrc/c+NmXnKyFrsqCdvE62XlaSFNWPjljiFXRoUYIB4dB:j3NlqaubXgUCqCRcZYnB
Threatray 199 similar samples on MalwareBazaar
TLSH T13E56CF1437F85E32E56BD277D5B0503663F0EC2AB763EB0B225176BE1CA3B4448426A7
TrID 30.3% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
17.8% (.EXE) InstallShield setup (43053/19/16)
12.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
11.2% (.EXE) UPX compressed Win32 Executable (27066/9/6)
6.8% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
File icon (PE):PE icon
dhash icon aa38ce868282b882 (110 x Adware.Generic, 6 x CoinMiner, 5 x Formbook)
Reporter Anonymous
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
310
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
OperaSetup.exe
Verdict:
Malicious activity
Analysis date:
2023-07-23 10:29:33 UTC
Tags:
installer rat quasar trojan asyncrat remote
Link:
https://app.any.run/tasks/577a68bd-b1fe-4a1b-9946-c5acf2befea7

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/429518/
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file in the %temp% directory
Creating a window
Launching a process
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive expand explorer fingerprint infostealer keylogger lolbin packed quasarrat rat remote replace stealer stealer
Link:
https://www.filescan.io/uploads/64bd0077ae1d636281d07ee0/reports/df424ccb-9f4b-4d22-b22d-122ba12bda39/overview
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Link:
https://www.hybrid-analysis.com/sample/ed4cbfe246783bd7a7d124ac8f67e208f968a805264c3c6883fe77ac8fc4e72c
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/575b1243-2016-4c5d-88c8-1f9493a3f684
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
58 / 100
Link:
https://www.joesandbox.com/analysis/1277865
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
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 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: 1277865 Sample: OperaSetup.exe Startdate: 23/07/2023 Architecture: WINDOWS Score: 58 144 Found malware configuration 2->144 146 Malicious sample detected (through community Yara rule) 2->146 148 Antivirus detection for URL or domain 2->148 150 8 other signatures 2->150 10 OperaSetup.exe 14 2->10         started        13 opera.exe 2->13         started        15 launcher.exe 2->15         started        17 2 other processes 2->17 process3 file4 114 C:\Users\user\AppData\Roaming\...\opera.exe, PE32 10->114 dropped 116 C:\Users\user\AppData\...\OperaSetup.exe, PE32 10->116 dropped 118 C:\Users\user\AppData\...\OperaSetup.exe.log, CSV 10->118 dropped 19 opera.exe 4 10->19         started        23 OperaSetup.exe 50 10->23         started        26 conhost.exe 10->26         started        28 opera_crashreporter.exe 13->28         started        30 opera_gx_splash.exe 13->30         started        32 opera.exe 13->32         started        38 2 other processes 13->38 120 C:\Users\user\AppData\Local\...\installer.exe, PE32+ 15->120 dropped 34 installer.exe 15->34         started        36 opera_autoupdate.exe 15->36         started        process5 dnsIp6 100 C:\Users\user\AppData\...\launcher.exe, PE32 19->100 dropped 152 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->152 40 launcher.exe 14 2 19->40         started        44 schtasks.exe 1 19->44         started        46 conhost.exe 19->46         started        132 107.167.125.189 OPERASOFTWAREUS United States 23->132 134 185.26.182.112 NO-OPERANO Norway 23->134 136 6 other IPs or domains 23->136 102 Assistant_100.0.48....exe_sfx.exe (copy), PE32 23->102 dropped 104 C:\Users\user\AppData\...\OperaSetup.exe, PE32 23->104 dropped 106 Opera_installer_2307231928046755032.dll, PE32 23->106 dropped 110 4 other files (none is malicious) 23->110 dropped 48 OperaSetup.exe 23->48         started        51 Assistant_100.0.4815.21_Setup.exe_sfx.exe 23->51         started        53 OperaSetup.exe 5 23->53         started        55 2 other processes 23->55 108 Opera_installer_2307231929427265800.dll, PE32+ 34->108 dropped file7 signatures8 process9 dnsIp10 138 95.140.230.192 LLNWUS United Kingdom 40->138 140 195.201.57.90 HETZNER-ASDE Germany 40->140 142 18.197.239.109 AMAZON-02US United States 40->142 154 Hides that the sample has been downloaded from the Internet (zone.identifier) 40->154 156 Installs a global keyboard hook 40->156 57 schtasks.exe 40->57         started        59 conhost.exe 44->59         started        86 Opera_installer_2307231928388695116.dll, PE32 48->86 dropped 61 installer.exe 48->61         started        64 OperaSetup.exe 48->64         started        88 C:\Users\user\AppData\Local\...\mojo_core.dll, PE32 51->88 dropped 90 C:\Users\user\AppData\Local\...\launcher.exe, PE32 51->90 dropped 92 C:\Users\user\AppData\Local\...\dbghelp.dll, PE32 51->92 dropped 98 3 other files (none is malicious) 51->98 dropped 94 Opera_installer_2307231928054746724.dll, PE32 53->94 dropped 96 Opera_installer_2307231928067045696.dll, PE32 55->96 dropped 66 assistant_installer.exe 55->66         started        file11 signatures12 process13 file14 68 conhost.exe 57->68         started        122 Opera_installer_2307231929180382496.dll, PE32+ 61->122 dropped 124 C:\Users\user\AppData\Local\...\opera.exe, PE32+ 61->124 dropped 126 C:\Users\user\AppData\Local\...\launcher.exe, PE32+ 61->126 dropped 70 opera.exe 61->70         started        73 installer.exe 61->73         started        76 installer_helper_64.exe 61->76         started        128 Opera_installer_2307231928407806800.dll, PE32 64->128 dropped process15 dnsIp16 130 192.168.2.1 unknown unknown 70->130 78 opera_crashreporter.exe 70->78         started        80 opera_gx_splash.exe 70->80         started        82 opera.exe 70->82         started        84 opera.exe 70->84         started        112 Opera_installer_2307231929190472244.dll, PE32+ 73->112 dropped file17 process18
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ed4cbfe246783bd7a7d124ac8f67e208f968a805264c3c6883fe77ac8fc4e72c/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2023-07-23 10:27:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
203
AV detection:
18 of 25 (72.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5vgl7ysgpa55pj6reswi6z7cbd4wrkafezgdy2ed7z32zd6e44wa._file
Verdict:
malicious
Similar samples:
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a75311b45f6434a5af77bc068b9daf6d6800704fb768aaaeb960a2448a355f02
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a8a85e6faaed6a3dc5687d05b92a9f181e0d986eae1b4e1d731c221990920037
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d1ebd145d558af0cc2ee585a8463dd0336e59d13864552588d7a8a1fa3544770
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ec5f46d31e3640082deea41ecd1ec3977376737db0a044e9ffb9f3fece8dcb82
QuasarRAT
+ 189 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:opera spyware stealer trojan upx
Link:
https://tria.ge/reports/230723-mg3xdsed8x/
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Modifies system certificate store
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
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
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Downloads MZ/PE file
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
6.tcp.eu.ngrok.io:19271
Unpacked files
SH256 hash:
ed4cbfe246783bd7a7d124ac8f67e208f968a805264c3c6883fe77ac8fc4e72c
MD5 hash:
6e9a5eb6cf78a859c57f941b97e1fa15
SHA1 hash:
8c7fa34eb9536c54bdb49939881a5010cd33eb9b
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/3562c59b-ac16-43b2-a5ec-910e975a2cf6/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ed4cbfe24678/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/ed4cbfe246783bd7a7d124ac8f67e208f968a805264c3c6883fe77ac8fc4e72c

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:grakate_stealer_nov_2021
Create hunting rule
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_B64_Encoded_UserAgent
Create hunting rule
Author:ditekSHen
Description:Detects executables containing base64 encoded User Agent
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
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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:yara_template
Create hunting rule

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/429518/

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