MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 547679ede9037e0edceeaa3e10b5f9ba6b8af47e6a3fa38b825c769005f182ef. 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: 14


Intelligence 14 IOCs YARA 16 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 547679ede9037e0edceeaa3e10b5f9ba6b8af47e6a3fa38b825c769005f182ef
SHA3-384 hash: 4f7dcbafc32addfffddeeb26fa47f7c40c5dbf512ed630d591c89a588ab73cbf8527f95fc415be1efc5d4525a6405acb
SHA1 hash: 16411711b6d4ee7172294355fb17b5e2ecb79056
MD5 hash: 289be5041440c4f1e1abeb0e3fb3eabc
humanhash: connecticut-equal-black-october
File name:289be5041440c4f1e1abeb0e3fb3eabc
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'085'952 bytes
First seen:2022-09-09 01:04:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:5Lynkc1ZzBvtrZHFjMKY270Nel0ooK+aRF:Jynkc1ZzBvtrZHFjMKY2wNel0E+a
TLSH T1C8352914F7E855A5F06E7F3674B198050B38FE03693D974B2B9690991E2A380CCB2F67
TrID 53.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.6% (.SCR) Windows screen saver (13101/52/3)
7.7% (.EXE) Win64 Executable (generic) (10523/12/4)
4.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter zbetcheckin
Tags:32 exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
379
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
289be5041440c4f1e1abeb0e3fb3eabc
Verdict:
Malicious activity
Analysis date:
2022-09-09 01:04:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a2624d9a-5d24-419b-80c3-d53d15d096f0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DLAgent09 Downloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/308882/
Detection(s):
Win.Malware.Ursu-9802322-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.NWorm.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the Program Files subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Sending a custom TCP request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a file
Launching a process
Creating a window
Adding an access-denied ACE
Forced system process termination
BSOD occurred
Unauthorized injection to a recently created process
Creating a file in the mass storage device
Verdict:
Malicious
Threat level:
  10/10
Confidence:
83%
Tags:
anti-vm clipbanker cmd.exe cmstp.exe emotet evasive exploit explorer.exe fingerprint fingerprint keylogger netsh.exe packed packed quasarrat rat regasm.exe schtasks.exe stealer update.exe venom
Link:
https://www.filescan.io/uploads/631a91b9f7a861bd921ccadf/reports/01917e88-f4d3-4fb6-b744-c611b858d532/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.
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5ca3b677-0e60-45e1-970c-a8eb4f45199d
Result
Threat name:
AsyncRAT, Clipboard Hijacker, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067515
Signature
.NET source code contains potential unpacker
.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
Connects to a pastebin service (likely for C&C)
Contains functionality to disable the Task Manager (.Net Source)
Contains functionality to hide user accounts
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes or reads registry keys via WMI
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Clipboard Hijacker
Yara detected Generic Downloader
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 700046 Sample: rlKunO4pb4.exe Startdate: 09/09/2022 Architecture: WINDOWS Score: 100 55 workday2022.hopto.org 2->55 57 ip-api.com 2->57 67 Snort IDS alert for network traffic 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for dropped file 2->71 73 19 other signatures 2->73 9 rlKunO4pb4.exe 15 13 2->9         started        14 skype.exe 2->14         started        16 skype.exe 2->16         started        signatures3 process4 dnsIp5 63 ip-api.com 208.95.112.1, 49722, 49726, 49740 TUT-ASUS United States 9->63 65 pastebin.com 104.20.67.143, 443, 49723 CLOUDFLARENETUS United States 9->65 51 C:\Program Files (x86)\skype.exe, PE32 9->51 dropped 53 C:\Users\user\AppData\...\rlKunO4pb4.exe.log, ASCII 9->53 dropped 85 May check the online IP address of the machine 9->85 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->87 18 skype.exe 17 8 9->18         started        23 cmd.exe 1 9->23         started        file6 signatures7 process8 dnsIp9 59 workday2022.hopto.org 18->59 61 ip-api.com 18->61 49 C:\Users\user\AppData\Localxecution2.vbs, ASCII 18->49 dropped 75 Protects its processes via BreakOnTermination flag 18->75 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->77 25 wscript.exe 1 18->25         started        27 wscript.exe 1 18->27         started        30 cmd.exe 18->30         started        32 WerFault.exe 18->32         started        79 Uses ping.exe to sleep 23->79 81 Uses ping.exe to check the status of other devices and networks 23->81 34 conhost.exe 23->34         started        36 PING.EXE 1 23->36         started        38 chcp.com 1 23->38         started        file10 signatures11 process12 signatures13 40 skype.exe 25->40         started        43 skype.exe 25->43         started        45 skype.exe 25->45         started        47 13 other processes 25->47 89 Writes or reads registry keys via WMI 27->89 process14 signatures15 83 Hides that the sample has been downloaded from the Internet (zone.identifier) 40->83
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/547679ede9037e0edceeaa3e10b5f9ba6b8af47e6a3fa38b825c769005f182ef/
Threat name:
ByteCode-MSIL.Trojan.ClipBanker
Create hunting rule
Status:
Malicious
First seen:
2022-09-07 23:59:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
33 of 40 (82.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kr3ht3pjan7a5xhovi7bbnpzxjvyv5d6ni72hc4clr3jabprqlxq._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:skype client persistence spyware trojan
Link:
https://tria.ge/reports/220909-bfhz2sgcc3/
Behaviour
Modifies registry class
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
workday2022.hopto.org:4788
Unpacked files
SH256 hash:
bb24999b7e18c175c1902d5c0a8ec31afab492c262b38b33f0200fe626d95b6a
MD5 hash:
4f1ee5b524879a6a6a1d4d345e6aa104
SHA1 hash:
9d1d6562d1eede14041c73fd9411e6183ffe4c56
Link:
https://www.unpac.me/results/5d5024d5-b37e-4faf-ad3b-da2bb641d66e/
SH256 hash:
547679ede9037e0edceeaa3e10b5f9ba6b8af47e6a3fa38b825c769005f182ef
MD5 hash:
289be5041440c4f1e1abeb0e3fb3eabc
SHA1 hash:
16411711b6d4ee7172294355fb17b5e2ecb79056
Link:
https://www.unpac.me/results/5d5024d5-b37e-4faf-ad3b-da2bb641d66e/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/547679ede903/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/547679ede9037e0edceeaa3e10b5f9ba6b8af47e6a3fa38b825c769005f182ef

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_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defedner features
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_IExecuteCommandCOM
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding command execution via IExecuteCommand COM object
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:malware_Quasar_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_DLAgent09
Create hunting rule
Author:ditekSHen
Description:Detects known downloader agent
Rule name:MALWARE_Win_DLAgent10
Create hunting rule
Author:ditekSHen
Description:Detects known downloader agent
Rule name:MALWARE_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:RDPWrap
Create hunting rule
Author:@bartblaze
Description:Identifies RDP Wrapper, sometimes used by attackers to maintain persistence.
Reference:https://github.com/stascorp/rdpwrap
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

QuasarRAT

Executable exe 547679ede9037e0edceeaa3e10b5f9ba6b8af47e6a3fa38b825c769005f182ef

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/308882/
  
URLhaus
https://urlhaus.abuse.ch/url/2297330/

Comments


Avatar
zbet commented on 2022-09-09 01:04:10 UTC

url : hxxp://81.161.229.110/htdocs/xBLQRnSbFDKkWyX.exe