MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 acfbcffe5730ef33a9497e56f399bac48fd85646f4320caa3cdc9445472cbff0. 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: acfbcffe5730ef33a9497e56f399bac48fd85646f4320caa3cdc9445472cbff0
SHA3-384 hash: f199d8fb20a2e4141f4a3049960a6499a8ce47542d6bb1a79630269510b460292280de07aa1e397a4c0fc31ac2191833
SHA1 hash: d4dd82001d72ec2b5dc776b9b4854143154f52ba
MD5 hash: bdc4cc77867d6c9022188f54dc88550d
humanhash: texas-tennis-coffee-beryllium
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'265'536 bytes
First seen:2024-01-08 11:55:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:WviI22SsaNYfdPBldt698dBcjHJXRJ69bR3LoGdsJTHHB72eh2NT:Wvv22SsaNYfdPBldt6+dBcjHJXRJ6Pc
Threatray 330 similar samples on MalwareBazaar
TLSH T16FE56B143BF85E27E1BBE27795B0041267F0FC1AF363EB0B658167BA1C53B5098426A7
TrID 37.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
29.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
8.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
6.7% (.SCR) Windows screen saver (13097/50/3)
5.3% (.EXE) Win64 Executable (generic) (10523/12/4)
Reporter smica83
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
319
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/469860/
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
Launching a process
Setting a keyboard event handler
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Enabling autorun by creating a file
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/659be29a99da41ccd7cab7ef/reports/ce608883-fddb-4f11-bcb5-8774872a91ab/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Quasar
Link:
https://www.hybrid-analysis.com/sample/acfbcffe5730ef33a9497e56f399bac48fd85646f4320caa3cdc9445472cbff0
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c8c91f8f-a5f9-48e2-909b-077abcfa14a3
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1371179
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Quasar
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1371179 Sample: Client.exe Startdate: 08/01/2024 Architecture: WINDOWS Score: 100 98 Found malware configuration 2->98 100 Malicious sample detected (through community Yara rule) 2->100 102 Antivirus detection for dropped file 2->102 104 7 other signatures 2->104 14 Client.exe 5 2->14         started        process3 file4 96 C:\Users\user\AppData\...\0IdcQVed9hUP.bat, DOS 14->96 dropped 132 Uses schtasks.exe or at.exe to add and modify task schedules 14->132 134 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->134 136 Installs a global keyboard hook 14->136 18 cmd.exe 1 14->18         started        21 schtasks.exe 1 14->21         started        signatures5 process6 signatures7 106 Uses ping.exe to sleep 18->106 108 Uses ping.exe to check the status of other devices and networks 18->108 23 Client.exe 4 18->23         started        27 conhost.exe 18->27         started        29 PING.EXE 1 18->29         started        31 chcp.com 1 18->31         started        33 conhost.exe 21->33         started        process8 file9 88 C:\Users\user\AppData\...\05kjmvtyYmyH.bat, DOS 23->88 dropped 116 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->116 118 Installs a global keyboard hook 23->118 35 cmd.exe 1 23->35         started        38 schtasks.exe 1 23->38         started        signatures10 process11 signatures12 110 Uses ping.exe to sleep 35->110 40 Client.exe 4 35->40         started        44 conhost.exe 35->44         started        46 PING.EXE 1 35->46         started        48 chcp.com 1 35->48         started        50 conhost.exe 38->50         started        process13 file14 90 C:\Users\user\AppData\...\3IOfPnWcKdX6.bat, DOS 40->90 dropped 120 Hides that the sample has been downloaded from the Internet (zone.identifier) 40->120 122 Installs a global keyboard hook 40->122 52 cmd.exe 1 40->52         started        55 schtasks.exe 1 40->55         started        signatures15 process16 signatures17 112 Uses ping.exe to sleep 52->112 57 Client.exe 52->57         started        61 conhost.exe 52->61         started        63 chcp.com 52->63         started        65 PING.EXE 52->65         started        67 conhost.exe 55->67         started        process18 file19 92 C:\Users\user\AppData\...\2tYwoMJzJ8IG.bat, DOS 57->92 dropped 124 Hides that the sample has been downloaded from the Internet (zone.identifier) 57->124 126 Installs a global keyboard hook 57->126 69 cmd.exe 57->69         started        72 schtasks.exe 57->72         started        signatures20 process21 signatures22 114 Uses ping.exe to sleep 69->114 74 Client.exe 69->74         started        78 conhost.exe 69->78         started        80 chcp.com 69->80         started        82 PING.EXE 69->82         started        84 conhost.exe 72->84         started        process23 file24 94 C:\Users\user\AppData\...\bHmOvNMh6jcl.bat, DOS 74->94 dropped 128 Hides that the sample has been downloaded from the Internet (zone.identifier) 74->128 130 Installs a global keyboard hook 74->130 86 schtasks.exe 74->86         started        signatures25 process26
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/acfbcffe5730ef33a9497e56f399bac48fd85646f4320caa3cdc9445472cbff0
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/acfbcffe5730ef33a9497e56f399bac48fd85646f4320caa3cdc9445472cbff0/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-01-06 07:54:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
29 of 37 (78.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vt5477sxgdxthkkjpzlphgn2ysh5qvsg6qzazkr43skekrzmx7ya._file
Verdict:
malicious
Similar samples:
02f0a7f184fcdaaa4d9a46ca29712c8daae0a46d2038bd362dc818025df8d553
QuasarRAT
5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b
QuasarRAT
96a244b32e73bac08510839a1137c41941ff4b18b1171c9fde09d0603b2477a7
QuasarRAT
c7550dc220b264239f7250607d6af8a0123107be4c377a3c94e5f8e63984b17d
QuasarRAT
d7a8958c5fde707a0943fb7021e254fd142fb434f4d9b7fcd03f1857ddfeeea9
QuasarRAT
e844192fb4c52758db729e18e8898fe0921bdbe1e2d3ac3da6a6b5d2cedecb71
QuasarRAT
+ 320 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:galaxyswapperv2 spyware trojan
Link:
https://tria.ge/reports/240108-n3fjnaabb5/
Behaviour
Creates scheduled task(s)
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
REEDIX:1001
Unpacked files
SH256 hash:
acfbcffe5730ef33a9497e56f399bac48fd85646f4320caa3cdc9445472cbff0
MD5 hash:
bdc4cc77867d6c9022188f54dc88550d
SHA1 hash:
d4dd82001d72ec2b5dc776b9b4854143154f52ba
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
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Link:
https://www.unpac.me/results/9c48c596-fa80-49bc-9037-b0bbb421b41a/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/acfbcffe5730/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/acfbcffe5730ef33a9497e56f399bac48fd85646f4320caa3cdc9445472cbff0

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:Diff_QuasarRAT_01
Create hunting rule
Author:schmidtsz
Description:Identify QuasarRAT samples
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 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
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:NETexecutableMicrosoft
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.

Cape
Cape
https://www.capesandbox.com/analysis/469860/

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