MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c8f09665c4c94041dd63191d0ea1b0f5092dc636eea7191242a7d7da9d7fa8b6. 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: 7
| SHA256 hash: | c8f09665c4c94041dd63191d0ea1b0f5092dc636eea7191242a7d7da9d7fa8b6 |
|---|---|
| SHA3-384 hash: | e066d4b5d1bf89aedb683e57fc0fb0124d40f60c15f178241b21d0d34432297e8f7e96dad511b49e6e2a838950843299 |
| SHA1 hash: | 1ec5e6ac8d0154eca145460e1b349cd49b06fb46 |
| MD5 hash: | 964efbbcba7f76c77d831f02fdc30de4 |
| humanhash: | sink-friend-music-berlin |
| File name: | Company profile and products.scr |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 969'864 bytes |
| First seen: | 2020-11-19 08:33:01 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 24576:IOdMrF///F53jIWQuTXIZK131ZEhNT8rlwR4QM:ah |
| Threatray | 136 similar samples on MalwareBazaar |
| TLSH | 2225EAB901CE5262E2AFCB39667FBE644072B5C7BFC679481378F1710EB96967A0010D |
| Reporter |  abuse_ch |
| Tags: | QuasarRAT RAT scr |
abuse_ch
Malspam distributing QuasarRAT:HELO: mx.topogrupe.lt
Sending IP: 88.119.142.178
From: Robertas Kregždė <robertas.kregzde@mob.topocentras.lt>
Subject: Exclusive Distribution Republic Of Moldova Topocentras Global d.o.o. 19/11/2020
Attachment: Company Details and Products.pdf.img (contains "Company profile and products.scr")
QuasarRAT C2:
morelogs.thruhere.net:4788 (103.28.70.59)
Intelligence
File Origin
# of uploads :
1
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Result
Gathering data
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.QuasarRAT
Status:
Malicious
First seen:
2020-11-19 08:33:45 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 126 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar persistence spyware trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Quasar RAT
Unpacked files
SH256 hash:
c8f09665c4c94041dd63191d0ea1b0f5092dc636eea7191242a7d7da9d7fa8b6
MD5 hash:
964efbbcba7f76c77d831f02fdc30de4
SHA1 hash:
1ec5e6ac8d0154eca145460e1b349cd49b06fb46
SH256 hash:
e6ea1dcd319ffe7ba03a72de391704913ecff2dff10c24d39645bee0b4781259
MD5 hash:
aadd160482dc70f848c9d72fd3f2f39e
SHA1 hash:
6ed19b78bdf6cbf8527dcee3f9628ad30e9c7e85
SH256 hash:
4ff5864248447b7912b91661aeffbfa362b545c42ad36dde7afa73a86ac66a11
MD5 hash:
5ccb74f5816992859806d318a4cf7ea6
SHA1 hash:
6fbee71a732870e50b02189871d1ef0545450336
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
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: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | CN_disclosed_20180208_KeyLogger_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware from disclosed CN malware set |
| Reference: | https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | MAL_QuasarRAT_May19_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| Rule name: | MSILStealer |
|---|---|
| Author: | https://github.com/hwvs |
| Description: | Detects strings from C#/VB Stealers and QuasarRat |
| Reference: | https://github.com/quasar/QuasarRAT |
| Rule name: | Quasar |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect QuasarRAT in memory |
| Rule name: | Quasar_RAT_1 |
|---|---|
| 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 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | Select_from_enumeration |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | Vermin_Keylogger_Jan18_1 |
|---|---|
| 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 |
|---|---|
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.