MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b. 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: 17


Intelligence 17 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b
SHA3-384 hash: ccf6948ad4803172e2fec1bf07cc3fc099e25c7f71759c2d4cd5b22917ed1e8e94b5eccbdef9694a53dcddd1e7968e75
SHA1 hash: dedc6d99553606c74fc3ad259b971a5ca1bed538
MD5 hash: 1a4a945ed20a34f5fdc62cb27ff15333
humanhash: one-louisiana-robin-football
File name:1A4A945ED20A34F5FDC62CB27FF15333.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'365'888 bytes
First seen:2023-11-10 21:15:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 49152:9vQlL26AaNeWgPhlmVqvMQ7XSKzGR16vbR3noGdqTHHB72eh2NTL:9v4L26AaNeWgPhlmVqkQ7XSKzGR16JH
TLSH T1B9F55B143BF85E27E1ABE277D5B0045267F0FC1AB363EB0B6581777A1C63B5098026A7
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10523/12/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 58c8d1d0cecbeeec (18 x AsyncRAT, 9 x XWorm, 6 x QuasarRAT)
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
213.65.233.25:4782

Intelligence

File Origin
# of uploads :
1
# of downloads :
330
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
1A4A945ED20A34F5FDC62CB27FF15333.exe
Verdict:
Malicious activity
Analysis date:
2023-11-10 21:16:28 UTC
Tags:
rat quasar remote asyncrat
Link:
https://app.any.run/tasks/09e1c9cb-d3af-42a8-9b71-17e6cbabc30f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Msilheracles-9900242-0
Create hunting rule

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

Win.Packed.Downeks-6898097-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Sending a custom TCP request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm certreq control crypto expand explorer infostealer keylogger lolbin quasarrat rat remote replace schtasks stealer stealer
Link:
https://www.filescan.io/uploads/654e9d93b50c955759217835/reports/440e6926-fa08-4f0c-a41b-bca353fd7ae6/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Quasar
Link:
https://www.hybrid-analysis.com/sample/5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/125b6497-9505-4d60-b7fc-ce5fb4c9a225
Result
Threat name:
Eagle RAT, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1340906
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Eagle Monitor RAT
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: 1340906 Sample: m90dF9Nbdm.exe Startdate: 10/11/2023 Architecture: WINDOWS Score: 100 42 f8terat.ddns.net 2->42 44 ipwho.is 2->44 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 15 other signatures 2->56 9 m90dF9Nbdm.exe 5 2->9         started        13 FPea0zxzgzoC.exe 2->13         started        15 defender.exe 3 2->15         started        17 FPea0zxzgzoC.exe 2->17         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\defender.exe, PE32 9->38 dropped 64 Uses schtasks.exe or at.exe to add and modify task schedules 9->64 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->66 19 defender.exe 14 18 9->19         started        24 schtasks.exe 1 9->24         started        68 Antivirus detection for dropped file 13->68 70 Machine Learning detection for dropped file 13->70 signatures6 process7 dnsIp8 46 f8terat.ddns.net 213.65.233.25, 4782, 49708, 49724 TELIANET-SWEDENTeliaCompanySE Sweden 19->46 48 ipwho.is 147.135.36.89, 443, 49710 OVHFR United States 19->48 36 C:\Users\user\AppData\...\FPea0zxzgzoC.exe, PE32 19->36 dropped 58 Tries to harvest and steal browser information (history, passwords, etc) 19->58 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->60 62 Installs a global keyboard hook 19->62 26 FPea0zxzgzoC.exe 5 19->26         started        30 schtasks.exe 1 19->30         started        32 conhost.exe 24->32         started        file9 signatures10 process11 file12 40 C:\Users\user\AppData\...\FPea0zxzgzoC.exe, PE32 26->40 dropped 72 Antivirus detection for dropped file 26->72 74 Query firmware table information (likely to detect VMs) 26->74 76 Machine Learning detection for dropped file 26->76 78 Installs a global keyboard hook 26->78 34 conhost.exe 30->34         started        signatures13 process14
Score:
92%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2023-11-10 02:21:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lk5tneatsiawglfhpuzv3qade2hk6whs7idtn6yypwcd4wl2fsnq._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:default spyware trojan
Link:
https://tria.ge/reports/231110-z4fftsed9s/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
f8terat.ddns.net:4782
Unpacked files
SH256 hash:
5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b
MD5 hash:
1a4a945ed20a34f5fdc62cb27ff15333
SHA1 hash:
dedc6d99553606c74fc3ad259b971a5ca1bed538
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/fca8f225-f65e-400b-855e-109020b23cbc/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5abb36901392/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/5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information

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

Comments