MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23ed6ef7aec39fbc37b613e5ad3611a84ba1facc92489ed818dcc72bee129022. 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: 9


Intelligence 9 IOCs YARA 11 File information Comments
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SHA256 hash: 23ed6ef7aec39fbc37b613e5ad3611a84ba1facc92489ed818dcc72bee129022
SHA3-384 hash: 0c127056fdcad5a0930a712e651c493c37e0c70e7ea829366a35d9e85fe41c6321fe41d7d53266ee280d908851774f2e
SHA1 hash: dc7c6b8e30833b87414d90518a4513be2d36de39
MD5 hash: 08670b42ccca45a60dc3ff9cbe8fac8d
humanhash: bluebird-golf-equal-iowa
File name:jbrowserQ.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:858'112 bytes
First seen:2020-12-01 08:44:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5479775c1d012f10601477c1237fe7d4 (6 x QuasarRAT, 2 x BitRAT, 1 x RevCodeRAT)
ssdeep 12288:AswVfxnn7TrbXNeOa7sYAUAwuaMpKsWwy/bR/Lnl4+rEYs10rRVDSi7kirqU2n8c:ANJDXIOaHsqMAjr21894TaQ
Threatray 142 similar samples on MalwareBazaar
TLSH CE05B06FE2B04837C1631A398C1BD79B6D25BE132B2868862BF41D4CBF3D6517936193
Reporter Marco_Ramilli
Tags:QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/106179/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
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SecuriteInfo.com.BackDoor.Quasar.124.18597.2139.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
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.
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/551937
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Creates files in alternative data streams (ADS)
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
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)
Maps a DLL or memory area into another process
May check the online IP address of the machine
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Writes to foreign memory regions
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 325073 Sample: jbrowserQ.exe Startdate: 01/12/2020 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Yara detected Quasar RAT 2->42 44 Sigma detected: Drops script at startup location 2->44 46 3 other signatures 2->46 8 jbrowserQ.exe 2->8         started        11 wscript.exe 1 2->11         started        process3 signatures4 56 Writes to foreign memory regions 8->56 58 Allocates memory in foreign processes 8->58 60 Queues an APC in another process (thread injection) 8->60 62 Contains functionality to detect sleep reduction / modifications 8->62 13 notepad.exe 5 8->13         started        17 emqkp.exe 11->17         started        process5 file6 28 C:\Users\user\AppData\Roaming\...\emqkp.exe, PE32 13->28 dropped 30 C:\Users\user\...\emqkp.exe:Zone.Identifier, ASCII 13->30 dropped 32 C:\Users\user\AppData\Roaming\...\cviqw.vbs, ASCII 13->32 dropped 68 Creates files in alternative data streams (ADS) 13->68 70 Drops VBS files to the startup folder 13->70 19 emqkp.exe 13->19         started        72 Maps a DLL or memory area into another process 17->72 22 emqkp.exe 3 17->22         started        signatures7 process8 signatures9 48 Detected unpacking (changes PE section rights) 19->48 50 Detected unpacking (creates a PE file in dynamic memory) 19->50 52 Detected unpacking (overwrites its own PE header) 19->52 54 4 other signatures 19->54 24 emqkp.exe 15 4 19->24         started        process10 dnsIp11 34 ip-api.com 208.95.112.1, 49728, 80 TUT-ASUS United States 24->34 36 yz.videomarket.eu 185.157.161.109, 1972, 49731 OBE-EUROPEObenetworkEuropeSE Sweden 24->36 38 192.168.2.1 unknown unknown 24->38 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->64 66 Installs a global keyboard hook 24->66 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23ed6ef7aec39fbc37b613e5ad3611a84ba1facc92489ed818dcc72bee129022/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-12-01 08:45:09 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=epww555oyop3yn5wcps22nqrvbf2d6wmsjej5way3tdsx3qssara._file
Verdict:
malicious
Similar samples:
025432a99764f95f01790ed77271c9f52c44bd6f08763d4ea77b81afbcad6485
QuasarRAT
06749098537b1e1e031e5d568e5e6d3f0bd89ca921953909b42c271b0a3fe5f0
QuasarRAT
0eaa5bbea25ef06214bc21deab41eb7f5bdcdd4c24b0297a28607d30edf65ae1
QuasarRAT
17a3a230d310ff684cf08306fe34d13c9505ac612942875a19c98b5d000119b0
QuasarRAT
2801e23864a2d65490e0ef7663d0d0e4292242f84d8368f0cdeefa868c375521
QuasarRAT
60d1ea55d2ecbd3f8289c2d11413ad2378551b8c87126d81483d18101bbd8e4a
QuasarRAT
b7823b23e2ef21045e77a01f2f34f86f387a607f4c1d949571c01c1fcdfd7fa1
QuasarRAT
d478602bac8b8f334f06644dd92fbe60cbba6815ced96503c7aab4df6f305e77
QuasarRAT
e73cf978acde72a0ec094a6fe4302cd7e369624fe183057d01a1c47fd878324f
QuasarRAT
fec56ffb3c5a61bffba235044da127eae17d9772dbd3817b8a5ce8cad0e93cb1
QuasarRAT
+ 132 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar spyware trojan upx
Link:
https://tria.ge/reports/201201-cm4bf3xlma/
Behaviour
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Loads dropped DLL
Executes dropped EXE
UPX packed file
Quasar RAT
Unpacked files
SH256 hash:
23ed6ef7aec39fbc37b613e5ad3611a84ba1facc92489ed818dcc72bee129022
MD5 hash:
08670b42ccca45a60dc3ff9cbe8fac8d
SHA1 hash:
dc7c6b8e30833b87414d90518a4513be2d36de39
Link:
https://www.unpac.me/results/cdb13172-af35-4c99-abac-2edb2fcfedf3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Tinba
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/23ed6ef7aec39fbc37b613e5ad3611a84ba1facc92489ed818dcc72bee129022

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
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
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:MSILStealer
Create hunting rule
Author:https://github.com/hwvs
Description:Detects strings from C#/VB Stealers and QuasarRat
Reference:https://github.com/quasar/QuasarRAT
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_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:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
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

File information

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

Web download

QuasarRAT

Executable exe 23ed6ef7aec39fbc37b613e5ad3611a84ba1facc92489ed818dcc72bee129022

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/869725/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/106179/

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