MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3f90a9aae3458c7e6184edd089ecb8937e29d5a52649f9ef8a1502313932de27. 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: 12
| SHA256 hash: | 3f90a9aae3458c7e6184edd089ecb8937e29d5a52649f9ef8a1502313932de27 |
|---|---|
| SHA3-384 hash: | 71d4069cddbe857bf447caae0d59725febf753552f4ad34b476735ac28ca79f5e3975030f937a904ac316deebbd22f7c |
| SHA1 hash: | 2eec6183d01c981bf7bb4eab6e75c4d29d0c412c |
| MD5 hash: | 372322406b6a5c04f37e4df210eeec69 |
| humanhash: | wisconsin-music-hot-hot |
| File name: | SecuriteInfo.com.SUSP_NET_NAME_ConfuserEx.10894.12908 |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 1'462'784 bytes |
| First seen: | 2022-12-05 18:33:55 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'746 x AgentTesla, 19'624 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 24576:z+ahSadxWV1Jo7HFZzbgtEyzVp69691SLNLLLc:a74WV1Jg5bgFVpR1SLNLLL |
| Threatray | 429 similar samples on MalwareBazaar |
| TLSH | T11465CF4873D076FEC8518ABD65AB4C14ED613C2BBF2A0F3A63077169A73E3525B09076 |
| TrID | 28.5% (.EXE) Win64 Executable (generic) (10523/12/4) 17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 13.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 12.2% (.EXE) Win32 Executable (generic) (4505/5/1) 5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| File icon (PE): |  |
| dhash icon | e8ceb2b2b2c4f8dc (1 x QuasarRAT) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
229
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
ID:
1
File name:
SecuriteInfo.com.SUSP_NET_NAME_ConfuserEx.10894.12908
Verdict:
Malicious activity
Analysis date:
2022-12-05 18:34:45 UTC
Tags:
evasion trojan quasar
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a file
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
Sending a custom TCP request
Creating a window
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
confuserex packed
Result
Verdict:
UNKNOWN
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
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Quasar
Status:
Malicious
First seen:
2022-12-05 16:29:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
21 of 26 (80.77%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 419 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:roop persistence spyware trojan
Behaviour
Creates scheduled task(s)
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
Loads dropped DLL
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
dnuocc.com:64594
www.dnuocc.com:64594
www.dnuocc.com:64594
Unpacked files
SH256 hash:
94a74a4a57519b2fd1a5d5fce6ce7615a6610d69152962b4a0c0f7c5df08b9b3
MD5 hash:
5c3e0e47f277ea6f8574fe5b91733050
SHA1 hash:
684758647e91f14b62838cb3072fada9f413d509
SH256 hash:
f95ea2b52970b1442c70d868589cec46753188c5e8ca1aea17954cd7bffe82eb
MD5 hash:
64c1254990968456d00bcfd41c2af768
SHA1 hash:
50fc5a441b25251bb24711045a1a4d3d8ece268c
SH256 hash:
3f90a9aae3458c7e6184edd089ecb8937e29d5a52649f9ef8a1502313932de27
MD5 hash:
372322406b6a5c04f37e4df210eeec69
SHA1 hash:
2eec6183d01c981bf7bb4eab6e75c4d29d0c412c
Malware family:
xRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
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 |
|---|---|
| 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 |
|---|---|
| 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_EXE_Packed_ConfuserEx |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with ConfuserEx Mod |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | INDICATOR_SUSPICIOUS_GENInfoStealer |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing common artifcats observed in infostealers |
| Rule name: | malware_Quasar_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect QuasarRAT in memory |
| Rule name: | MALWARE_Win_QuasarRAT |
|---|---|
| Author: | ditekSHen |
| Description: | QuasarRAT payload |
| 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: | MAL_QuasarRAT_May19_1_RID2E1E |
|---|---|
| Author: | Florian Roth |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| Rule name: | pe_imphash |
|---|
| 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_1_RID2B54 |
|---|---|
| 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: | Quasar_RAT_2_RID2B55 |
|---|---|
| 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 |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| 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: | Windows_Trojan_Quasarrat_e52df647 |
|---|---|
| Author: | Elastic Security |
| Rule name: | xRAT_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Patchwork malware |
| Reference: | https://goo.gl/Pg3P4W |
| Rule name: | xRAT_1_RID2900 |
|---|---|
| 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.
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