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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45fb15a78e1411771b4e49858e1ecfc013ee10bf05e544768b7dc807ea4220d8. 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



GuLoader


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 45fb15a78e1411771b4e49858e1ecfc013ee10bf05e544768b7dc807ea4220d8
SHA3-384 hash: 5f825d1c8b30140eb14b4e25f6963231c920105dd26420334ab7634686639271a8d5a0451e3477cd99997dd8403c0f55
SHA1 hash: 2118d8ef99867272629f62481993239299a1b7e0
MD5 hash: 5965a9a1112be2f0c1e24fbbf8d02b32
humanhash: virginia-apart-magnesium-jersey
File name:45fb15a78e1411771b4e49858e1ecfc013ee10bf05e544768b7dc807ea4220d8
Download: download sample
Signature GuLoader
File size:240'204 bytes
First seen:2026-03-06 14:54:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 671f2a1f8aee14d336bab98fea93d734 (204 x GuLoader, 4 x Formbook, 4 x RemcosRAT)
ssdeep 6144:kcBvWb0Av4hxgyUIB8r1Qf4RKaO6xyancOl:tO0AAhxgfrawRKaO6rncI
Threatray 2'477 similar samples on MalwareBazaar
TLSH T1E4341206BA71C4A3D17607B06D3A9A67AFE2D61212E54BC737AC6E1DBC331424C2D2D7
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon c4dadadad2f492c2 (148 x GuLoader, 51 x RemcosRAT, 23 x VIPKeylogger)
Reporter adrian__luca
Tags:exe GuLoader

Intelligence


File Origin
# of uploads :
1
# of downloads :
121
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
12445723747fac110db010475278e97b27d6a4d1cb32a4eb0181201a3b208a9e.zip
Verdict:
Malicious activity
Analysis date:
2026-02-17 20:12:48 UTC
Tags:
arch-exec stealer ultravnc rmm-tool agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
70%
Tags:
shellcode injection blic
Gathering data
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2026-02-17 19:35:30 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:agenttesla family:guloader discovery downloader installer keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Agenttesla family
Guloader family
Guloader,Cloudeye
Unpacked files
SH256 hash:
45fb15a78e1411771b4e49858e1ecfc013ee10bf05e544768b7dc807ea4220d8
MD5 hash:
5965a9a1112be2f0c1e24fbbf8d02b32
SHA1 hash:
2118d8ef99867272629f62481993239299a1b7e0
SH256 hash:
014f1dfeb842cf7265a3644bc6903c592abe9049bfc7396829172d3d72c4d042
MD5 hash:
12b140583e3273ee1f65016becea58c4
SHA1 hash:
92df24d11797fefd2e1f8d29be9dfd67c56c1ada
SH256 hash:
b2699fdfdab6a018fcc972806d12f71972de1861660bb6578935d62b1da06504
MD5 hash:
3cea4c9994912d8f3c3e8b6a814e810e
SHA1 hash:
c48d34a0981d4ab576c7a3ab566f5ddb94af5d86
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Ins_NSIS_Buer_Nov_2020_1
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:shellcode
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.

Comments