MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab. 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: 16


Intelligence 16 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab
SHA3-384 hash: 354063d41be1f43327bb721660db05f6e92ba19bd9cd86a8fce5976f9f2d6e22f757189ace32d29821f559b9da7c6f2c
SHA1 hash: 584f8c3482e8123affe0c915a71c7b5a1cf7cb14
MD5 hash: 430df771b70ab0f47cbed46a479d0c89
humanhash: bravo-ceiling-single-cup
File name:z1Comprobante_de_Pago_12_9_2025.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:4'020'736 bytes
First seen:2025-09-13 13:01:17 UTC
Last seen:2025-09-13 13:01:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 98304:wilxy6/gMPcReLQJXyJL5u8jnSxey4s2h3:wiC650RNXyJLkLYbt
Threatray 250 similar samples on MalwareBazaar
TLSH T19D16238C366032DEC89BD5314D661E98D6507E766F2B6213D02734AEAE3E48BCF154B3
TrID 28.5% (.EXE) Win64 Executable (generic) (10522/11/4)
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) (4504/4/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter FXOLabs
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
109
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z1Comprobante_de_Pago_12_9_2025.exe
Verdict:
Malicious activity
Analysis date:
2025-09-13 13:02:30 UTC
Tags:
auto-reg evasion crypto-regex confuser
Link:
https://app.any.run/tasks/98676166-0e0f-4572-b2dc-d8e0359146b5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/27295/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68c56b38d49ea3f1e4b50cc8
Tags:
autorun packed spawn sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 confuser confuserex net obfuscated obfuscated packed packed vbnet
Link:
https://www.filescan.io/uploads/68c56b38dbc6f5a29c4357b5/reports/2feb7708-07a0-417c-8b86-98ccc85a6e2b/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-13T08:52:00Z UTC
Last seen:
2025-09-13T08:52:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/866f62c3-5f5f-473d-a7b2-dde527fb61df
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 1.00 Win 32 Exe x86
Link:
https://app.malva.re/file/430df771b70ab0f47cbed46a479d0c89
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab/
Threat name:
Win32.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2025-09-13 12:01:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=emrioi55g47qukihvjcq5oxtuimpvq2gypmfj3tvks4jtxgbtcvq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
0d67bbcf54636d81b4e23a93a717fd1825441c08be672c9b647a0c9ec2ddd94f
QuasarRAT
6b67447d97fcaca79ed98bcd6461b06445e978be3d45d4b0e2637057da97c4c2
QuasarRAT
c30fdd073be8172d6975c53b1c6fa4955a0f20ebaef408228017540ba4d8ad62
QuasarRAT
c6e92bc1395d1865f41e0d10256f7de0fd6913a07c414b2489a191227b3730f6
QuasarRAT
e00aa14eab3def5c39e2be5d0f787d47caf495b1566f6c52d2771f4c4150f47a
QuasarRAT
error
QuasarRAT
fc53884a4452b6f808e280dc3fc3a051d0129be2aabf61ea816dacf6c3ea9e80
QuasarRAT
+ 240 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:silver01 defense_evasion discovery execution persistence spyware trojan
Link:
https://tria.ge/reports/250913-p9jqbs1jx6/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
ConfuserEx .NET packer
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
onanothertry.ydns.eu:4799
asesorarcolom.crabdance.com:4898
Verdict:
Malicious
Tags:
red_team_tool
YARA:
SUSP_NET_NAME_ConfuserEx
Link:
https://app.threat.zone/submission/83e7e0ae-ee57-4fb6-a5d8-d12350d646fc
Unpacked files
SH256 hash:
23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab
MD5 hash:
430df771b70ab0f47cbed46a479d0c89
SHA1 hash:
584f8c3482e8123affe0c915a71c7b5a1cf7cb14
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
SH256 hash:
3f06a2cca7095ae765f0d29d1c7998dbbd901ecc0a1b0d79d372daa14db67066
MD5 hash:
f7123f518fa6e2da4a11ade278b8a1dc
SHA1 hash:
03d3d45e89cc03872864e27d5a78ee1be095cecb
Detections:
QuasarRAT
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
MAL_BackNet_Nov18_1
Create hunting rule
INDICATOR_EXE_Packed_Fody
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
Parent samples :
23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab
8638d79bd3e5370b1a1525cb43e9b92a5d99d58a947f4dc06c692f5f9a82bcd8
7be2273bfc26f6f298548a4ff29de90dd24c8dc6b473ea06c2d59c62e09cedff
c9b1c0660b49eeaea761b489d5c00235f7a597b4a5b244643418d6375e436b42
SH256 hash:
6ce2e99303473dd73ab0b9b2b107fdf6af1e2c8454b93a930bef15c83aadfdec
MD5 hash:
2193485952cc3d3b6241c4150c85dd7f
SHA1 hash:
3774a2eec0f2baaa7006364677b0fb88d84488eb
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
SH256 hash:
d989fe2546a5437e9420c4d3585441ee215a743087960c34cd04955293d1e0ca
MD5 hash:
1d8702f155c9b225a5d0fce814777c75
SHA1 hash:
2c7efc378489926b07b180a8366c8f0552c605e2
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
HKTL_NET_GUID_Quasar
Create hunting rule
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
Parent samples :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 hash:
d5235265564f0bfd23b7279d7bdccc9ea6383ed07c5d0bfdf6c99029af9a2c0c
MD5 hash:
1d3dd9fcc077e6b4f88c05b9aef53ee6
SHA1 hash:
12b33858bc84f54b8aa8dbcb5a0ec2da043a6f66
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
SH256 hash:
4c9615496970ea84320e2a6e99f8fb828e3c7790384df5585d93fc368885d94e
MD5 hash:
50e6524b7ee9c2c93f5210b63cb1ca54
SHA1 hash:
3e296ec3bb24750833ea80515e6fb4c73874c91a
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
SH256 hash:
ceed689891874eed41295189b2db3c187aabcfc90add5a1d2af96f078bcb4811
MD5 hash:
026a5bafe4ac686c01e9d56e00a87ab1
SHA1 hash:
a6ff2228e8114a2b4040d0ca137c4b544ff034f4
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
SH256 hash:
5012d7cab74e4d5bd9fdd298d05ae5d51442e66d426e5859beb9a513ad1acae4
MD5 hash:
79331ea5a83291a3f45014f126c5176f
SHA1 hash:
d60daf9acaacbeb3def349c76f236df1460a4797
Link:
https://www.unpac.me/results/c6cb414f-b0fb-454f-9682-4123982e3e37/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23228723bd37/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/23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_EXE_Packed_ConfuserEx_Custom
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Custom; outside of GIT
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

QuasarRAT

Executable exe 23228723bd373f0a2907aa450ebaf3a218fac346c3d854ee7554b899dcc198ab

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/27295/

Comments