MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5724c5e79efbb3e6749c3fed21ef2def67cf6fa273821a93b615b7d6608d2d30. 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 18 File information Comments
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SHA256 hash: 5724c5e79efbb3e6749c3fed21ef2def67cf6fa273821a93b615b7d6608d2d30
SHA3-384 hash: b356d407e4badfdeabaf077a90bb86c6a20406ada656726088f5d7b0edd00eabbd94835a0f3ce0ebef5350f7fdc9c3dd
SHA1 hash: 7f9398c04e6717c2e19612cf144e9e840c887d7d
MD5 hash: 07bc50f900c95233e323f9cfb8f4abe8
humanhash: idaho-early-butter-delta
File name:07bc50f900c95233e323f9cfb8f4abe8.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:356'352 bytes
First seen:2021-12-13 16:48:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'855 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 3072:lur9+7QRqiqCFFiEKdpyDcsvjz+R5O4zA99bdS3mmww/EThmbfmAO8v2OgfOBE56:lUqQ4i1FFiEKlPAA5jbf8OzB+RJ9y0+
Threatray 266 similar samples on MalwareBazaar
TLSH T17E749D1373A8E53BD1FE173AE43206194BB4D893B616E38F5A1A56F92D133868D503B3
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
07bc50f900c95233e323f9cfb8f4abe8.exe
Verdict:
Malicious activity
Analysis date:
2021-12-13 16:55:14 UTC
Tags:
rat quasar evasion trojan
Link:
https://app.any.run/tasks/90c97f46-51b4-4d7e-8854-5bc0864b3c10

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/213627/
Detection(s):
Win.Packed.Passwordstealera-9792228-0
Create hunting rule

Win.Packed.Generic-9829635-0
Create hunting rule

Win.Packed.Generic-9830106-0
Create hunting rule

Win.Trojan.Generic-6295765-0
Create hunting rule

Win.Malware.Generic-6623004-0
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 %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm fingerprint greyware keylogger obfuscated packed quasar quasarrat rat stealer stealer vermin xrat
Link:
https://www.filescan.io/uploads/61b779822a069372661132c0/reports/e24bba63-7c6d-40d6-8efa-73caba84c9f0/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/b69ee49c-2d0d-4f61-a493-4de4c7f1d150
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/906462
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
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)
May check the online IP address of the machine
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 Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 538938 Sample: VA6tIRHaBe.exe Startdate: 13/12/2021 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 5 other signatures 2->51 8 VA6tIRHaBe.exe 15 5 2->8         started        13 VA6tIRHaBe.exe 2 2->13         started        process3 dnsIp4 31 ip-api.com 208.95.112.1, 49748, 49753, 80 TUT-ASUS United States 8->31 27 C:\Users\user\...\qadvawjdga76876jdfa.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\...\VA6tIRHaBe.exe.log, ASCII 8->29 dropped 53 May check the online IP address of the machine 8->53 55 Uses schtasks.exe or at.exe to add and modify task schedules 8->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->57 15 qadvawjdga76876jdfa.exe 14 4 8->15         started        19 schtasks.exe 1 8->19         started        file5 signatures6 process7 dnsIp8 33 188.60.70.87, 4785, 49754, 49755 SWISSCOMSwisscomSwitzerlandLtdCH Switzerland 15->33 35 ip-api.com 15->35 37 Antivirus detection for dropped file 15->37 39 Multi AV Scanner detection for dropped file 15->39 41 May check the online IP address of the machine 15->41 43 3 other signatures 15->43 21 schtasks.exe 1 15->21         started        23 conhost.exe 19->23         started        signatures9 process10 process11 25 conhost.exe 21->25         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5724c5e79efbb3e6749c3fed21ef2def67cf6fa273821a93b615b7d6608d2d30/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2021-12-12 17:16:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
36 of 45 (80.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k4smlz467oz6m5e4h7wsd3zn55t4635coobbve5wcw35myenfuya._file
Verdict:
malicious
Similar samples:
0294e192621b21d5c8f2288496930fe5e947fd66cdff1a119ca2f8bbdd8a537e
QuasarRAT
0eaa5bbea25ef06214bc21deab41eb7f5bdcdd4c24b0297a28607d30edf65ae1
QuasarRAT
189dfc7eca70dc08e242e9079d35198826b189f27e919aaf13c4482a763ae1a3
QuasarRAT
2801e23864a2d65490e0ef7663d0d0e4292242f84d8368f0cdeefa868c375521
QuasarRAT
4eb7837b370c8f3cacc740cbe69bc00ed2622b9572cffb12a2d1420d5ddc77b7
QuasarRAT
99a6c8e156dba4fda6e2b6ca0802cc08d49556b489e97618e565768329521413
QuasarRAT
d478602bac8b8f334f06644dd92fbe60cbba6815ced96503c7aab4df6f305e77
QuasarRAT
e690896d7f40d40a1cdbeb6348a72207af6cd5e150d036a729760e23ac575816
QuasarRAT
e73cf978acde72a0ec094a6fe4302cd7e369624fe183057d01a1c47fd878324f
QuasarRAT
fec56ffb3c5a61bffba235044da127eae17d9772dbd3817b8a5ce8cad0e93cb1
QuasarRAT
+ 256 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/211213-vbpftadhd7/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Looks up external IP address via web service
Loads dropped DLL
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
188.60.70.87:4785
Unpacked files
SH256 hash:
5724c5e79efbb3e6749c3fed21ef2def67cf6fa273821a93b615b7d6608d2d30
MD5 hash:
07bc50f900c95233e323f9cfb8f4abe8
SHA1 hash:
7f9398c04e6717c2e19612cf144e9e840c887d7d
Link:
https://www.unpac.me/results/6d6a28d4-db51-4335-8d14-324fd3808f24/
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/5724c5e79efbb3e6749c3fed21ef2def67cf6fa273821a93b615b7d6608d2d30

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:CN_disclosed_20180208_KeyLogger_1
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:CN_disclosed_20180208_KeyLogger_1_RID3227
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
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_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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Quasar
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_1_RID2B54
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2_RID2B55
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
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/
Rule name:xRAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W

File information

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

Web download

QuasarRAT

Executable exe 5724c5e79efbb3e6749c3fed21ef2def67cf6fa273821a93b615b7d6608d2d30

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1880117/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/213627/

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