MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4. 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 20 File information Comments
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SHA256 hash: c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4
SHA3-384 hash: ae98da7354b35e4adf8648e0532de71d7051ab584be46e2a05885dedf023eab3bc6893a05b71a25a3a98eeb389181a00
SHA1 hash: 32e33e2ed46bff117148f21f038b98b462a8fca6
MD5 hash: 5d04c84add433ddf601ff9de6862d9bf
humanhash: fourteen-spaghetti-fruit-kansas
File name:Client.exe
Download: download sample
Signature QuasarRAT
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File size:3'333'632 bytes
First seen:2024-01-08 09:47:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:QvBt62XlaSFNWPjljiFa2RoUYIJIRJ6MbR3LoGd4CTHHB72eh2NT:Qvr62XlaSFNWPjljiFXRoUYIJIRJ6WI
TLSH T12FF56B543BF84F37E1ABE277A5B1041267F0FC2AB363E70B6181677A1D53B5098026A7
TrID 40.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
31.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
9.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
5.7% (.EXE) Win64 Executable (generic) (10523/12/4)
3.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
dhash icon 9271ccd4d4cc7192 (1 x QuasarRAT)
Reporter smica83
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
337
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
QuasarStealer
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Link:
https://www.capesandbox.com/analysis/469851/
Detection(s):
Win.Malware.Generic-9883083-0
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Win.Malware.Msilheracles-9900242-0
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ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
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Win.Packed.Downeks-6898097-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
DNS request
Setting a keyboard event handler
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm certreq control crypto expand explorer hook infostealer keylogger lolbin quasar quasarrat rat remote replace schtasks stealer stealer
Link:
https://www.filescan.io/uploads/659bc4d7fd5068bbc3cb4d2e/reports/32ec2de7-d249-4087-8e5e-eec85e99367a/overview
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Link:
https://www.hybrid-analysis.com/sample/c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ad00d873-230e-4826-a793-1f08289c0a64
Result
Threat name:
Quasar
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1371131
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops executables to the windows directory (C:\Windows) and starts them
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
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4
Detection:
quasar
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Link:
https://mwdb.cert.pl/sample/c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4/
Threat name:
ByteCode-MSIL.Trojan.Quasar
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Status:
Malicious
First seen:
2024-01-07 04:44:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ythdocds5vqynvvabkv3g7szsnxkezf5l3t6mg6dm2vf7o74rt2a._file
Verdict:
malicious
Result
Malware family:
quasar
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Score:
  10/10
Tags:
family:quasar botnet:paras spyware trojan
Link:
https://tria.ge/reports/240108-lsr4lafdcr/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in System32 directory
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
myhost567098.ddns.net:4782
Unpacked files
SH256 hash:
c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4
MD5 hash:
5d04c84add433ddf601ff9de6862d9bf
SHA1 hash:
32e33e2ed46bff117148f21f038b98b462a8fca6
Detections:
QuasarRAT
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
win_quasarrat_j2
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
cn_utf8_windows_terminal
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INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
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MAL_QuasarRAT_May19_1
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_GENInfoStealer
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Link:
https://www.unpac.me/results/721343d4-a7fb-4024-9991-5e364152b80a/
Malware family:
QuasarRAT
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c4ce370872ed/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/c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4

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
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Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Diff_QuasarRAT_01
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Author:schmidtsz
Description:Identify QuasarRAT samples
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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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 artifacts 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
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RC6_Constants
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Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
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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
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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.

Cape
Cape
https://www.capesandbox.com/analysis/469851/

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