MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82. 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


SchoolBoy


Vendor detections: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82
SHA3-384 hash: 058b6fc5fe6c3f8e4587f3367da19b5e1310e1e264d740ca4b07df478c2a98a023fbf310c286ac8f20aa5ef25d934aad
SHA1 hash: dcf896658bea041c32dcac68c11095f2f44f051a
MD5 hash: 4af5af6fed218c5cc4e2c8ddbdd4432e
humanhash: alabama-twelve-alanine-twenty
File name:file
Download: download sample
Signature SchoolBoy
Create hunting rule
File size:6'216'720 bytes
First seen:2026-01-30 02:53:04 UTC
Last seen:2026-01-30 14:56:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 20dd26497880c05caed9305b3c8b9109 (31 x Adware.Auslogics, 21 x HijackLoader, 5 x Adware.IObit)
ssdeep 98304:db5bc59tLCXk3M+goM5BU5bIvCbdCA3aWqsf99O+RB7FW6pzQdbl3Z+lqLxjX:dNwLCOKo5QY9q3+Rf9Gdb0qLxj
TLSH T1FC563343B7C74476E8BD7E32C838C020CC2569782BE6B42B3DF9D69D46326D95972392
TrID 70.9% (.EXE) Inno Setup installer (107240/4/30)
9.3% (.EXE) Win32 Executable Delphi generic (14182/79/4)
6.9% (.EXE) Win64 Executable (generic) (10522/11/4)
4.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
2.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'800 x Socks5Systemz, 67 x RedLineStealer)
Reporter Bitsight
Tags:D dropped-by-gcleaner EU.file exe SchoolBoy


Avatar
Bitsight
url: http://194.38.20.224/service

Intelligence

File Origin
# of uploads :
2
# of downloads :
173
Origin country :
US US
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/7505e78e-5a1b-4ad0-8b12-87528623aadf/
Malware family:
n/a
ID:
1
File name:
_4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82.exe
Verdict:
Malicious activity
Analysis date:
2026-01-30 02:55:02 UTC
Tags:
inno installer delphi hijackloader loader auto-startup
Link:
https://app.any.run/tasks/c33876ec-4e74-4254-b77a-59a05d4b2554

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/50769/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=697c1d326fa3eed1653074be
Tags:
shellcode autorun dropper crypt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm embarcadero_delphi fingerprint inno installer installer installer-heuristic packed soft-404
Link:
https://www.filescan.io/uploads/697c1d2b930564ff3c7da035/reports/82db357e-d28c-4277-b3a5-d5350727d37d/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-30T00:01:00Z UTC
Last seen:
2026-01-31T23:26:00Z UTC
Hits:
~10
Detections:
Trojan.Win32.Strab.sb Trojan.Win32.Penguish.sb Trojan.Win32.Inject.sb Trojan.Win32.Delf.sb Trojan.Win32.Agent.sb Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Pycoon.sb Trojan-PSW.Win32.Greedy.sb Trojan.Win32.Penguish.gme Trojan-Spy.Win32.Stealer.sb
Link:
https://opentip.kaspersky.com/4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82/results?tab=lookup
Malware family:
IDAT Loader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dbe751ab-e706-4ab2-8ceb-890aa38f301c
Score:
19%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82/
Verdict:
Malicious
Threat:
Family.HIJACKLOADER
Link:
https://tip.neiki.dev/file/4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jwk6myogcyfyl5bsbqq5itndgo4xxjef6kljafojhs5j5aon7sba._file
Verdict:
malicious
Label(s):
hijackloader
Create hunting rule
Similar samples:
error
SchoolBoy
Result
Malware family:
hijackloader
Create hunting rule
Score:
  10/10
Tags:
family:hijackloader credential_access discovery installer loader spyware stealer
Link:
https://tria.ge/reports/260130-ddkrzaew4e/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Inno Setup is an open-source installation builder for Windows applications.
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Time Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Detects HijackLoader (aka IDAT Loader)
HijackLoader, IDAT loader, Ghostulse,
Hijackloader family
Unpacked files
SH256 hash:
4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82
MD5 hash:
4af5af6fed218c5cc4e2c8ddbdd4432e
SHA1 hash:
dcf896658bea041c32dcac68c11095f2f44f051a
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
7047d246e7392d834010617a4f2dd45ddcdd414fbcc66633366cba666bda0236
MD5 hash:
260c06257e13780ac34eee7aa1fdc13d
SHA1 hash:
1f4265b821f684eec4f5dded98c2063e48023f7c
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
388a796580234efc95f3b1c70ad4cb44bfddc7ba0f9203bf4902b9929b136f95
MD5 hash:
e4211d6d009757c078a9fac7ff4f03d4
SHA1 hash:
019cd56ba687d39d12d4b13991c9a42ea6ba03da
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
821bd11693bf4b4b2b9f3c196036e1f4902abd95fb26873ea6c43e123b8c9431
MD5 hash:
90fc739c83cd19766acb562c66a7d0e2
SHA1 hash:
451f385a53d5fed15e7649e7891e05f231ef549a
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
44b8e6a310564338968158a1ed88c8535dece20acb06c5e22d87953c261dfed0
MD5 hash:
9c8886759e736d3f27674e0fff63d40a
SHA1 hash:
ceff6a7b106c3262d9e8496d2ab319821b100541
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
08a93ad91061aeda02121ae6a4fc9ec024f612e39626c615fd5f3765957608a4
MD5 hash:
2e259afb699d02eecfa0817e791e3324
SHA1 hash:
3873b36b6b1257dfa6543124383e932d553126a4
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
a6edb3fb6d21dd461da3767a7995034e208f7d6b08997f6cf7ee7b0ea833a8f0
MD5 hash:
cabb58bb5694f8b8269a73172c85b717
SHA1 hash:
9ed583c56385fed8e5e0757ddb2fdf025f96c807
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
68bee500e0080f21c003126e73b6d07804d23ac98b2376a8b76c26297d467abe
MD5 hash:
d4dae7149d6e4dab65ac554e55868e3b
SHA1 hash:
b3bea0a0a1f0a6f251bcf6a730a97acc933f269a
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
SH256 hash:
e3243f5b10de2c1ab620b647671976448ae7d1fc89457a71db38ccd918c6268c
MD5 hash:
d465617fb7e0f8219597b81ed1300044
SHA1 hash:
e880e7119ba3b45df7183a427cc280b114527ea8
Detections:
win_sinowal_w1
Create hunting rule
Link:
https://www.unpac.me/results/7a9455f8-c8dc-431b-9bf4-1ed118518a21/
Malware family:
HijackLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4d95e661c616/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82

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:Borland
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Web download

SchoolBoy

Executable exe 4d95e661c6160b85f4320c21d44da333b97ba485f2969015c93cba9e81cdfc82

(this sample)

  
Dropped by
Gcleaner
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/50769/

Comments