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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d. 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: 13


Intelligence 13 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d
SHA3-384 hash: 189f4bb106e80168068529ef2daf24a6a231869e81159f5af03fd72bbcb2b1db2180cc161662149a1fcf035b8df8807c
SHA1 hash: 6becc54c615e1fc880c67e2cd80b2895f45b0549
MD5 hash: 6570f5a2315ed744c1136a67f824b37e
humanhash: carpet-utah-bulldog-mockingbird
File name:justificante de transferencia09454545.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:639'308 bytes
First seen:2025-03-06 11:52:42 UTC
Last seen:2026-05-20 17:25:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 17b7d61bda0f7478e36d9ce3d4170680 (23 x GuLoader, 7 x AgentTesla, 6 x njrat)
ssdeep 12288:2iuvt+JEd7DgsW4vcvmduK/4gEhcSIJaC9TVqRuRCEZjLTVYETd7K84j0eqxq:iV+JEdHg1gzSUasfRlZXZYETZHQDu
TLSH T17CD42340E6D5B0A3E58372324E3B6A75FB3ABF052442660B3793DF933530256C5A6B63
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon fcdcccccccecd810 (6 x GuLoader, 1 x RemcosRAT)
Reporter TeamDreier
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
474
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Justificante 0556ab404ffe63489e00a49987093578.rar
Verdict:
Malicious activity
Analysis date:
2025-03-05 14:08:28 UTC
Tags:
arch-exec
Link:
https://app.any.run/tasks/620b740c-ba26-4962-b445-0c650b3f94cb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.26311.30736.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c98e1ac668b65489bf7154
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a file
Delayed reading of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context blackhole installer microsoft_visual_cc overlay packed packed packer_detected
Link:
https://www.filescan.io/uploads/67c98cb24a3011c802c9516a/reports/5484a355-1bca-40d8-a58b-1813bbd1efc2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/340696e1-e961-4663-b6e5-1690f49a5a24
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1630919
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1630919 Sample: justificante de transferenc... Startdate: 06/03/2025 Architecture: WINDOWS Score: 100 31 www.meacci.xyz 2->31 33 www.kdjsswzx.club 2->33 35 4 other IPs or domains 2->35 49 Suricata IDS alerts for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 57 6 other signatures 2->57 10 justificante de transferencia09454545.exe 2 38 2->10         started        signatures3 55 Performs DNS queries to domains with low reputation 31->55 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 10->29 dropped 13 justificante de transferencia09454545.exe 6 10->13         started        process6 dnsIp7 43 drive.google.com 142.250.186.78, 443, 49707 GOOGLEUS United States 13->43 45 drive.usercontent.google.com 172.217.16.193, 443, 49708 GOOGLEUS United States 13->45 69 Maps a DLL or memory area into another process 13->69 17 Ll3N65UXbvloyqJVc8Qu.exe 13->17 injected signatures8 process9 signatures10 47 Found direct / indirect Syscall (likely to bypass EDR) 17->47 20 icsunattend.exe 13 17->20         started        process11 signatures12 59 Tries to steal Mail credentials (via file / registry access) 20->59 61 Tries to harvest and steal browser information (history, passwords, etc) 20->61 63 Modifies the context of a thread in another process (thread injection) 20->63 65 3 other signatures 20->65 23 Ll3N65UXbvloyqJVc8Qu.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 37 intention.digital 46.38.243.234, 49710, 49711, 49712 NETCUP-ASnetcupGmbHDE Germany 23->37 39 www.kdjsswzx.club 188.114.96.3, 49709, 80 CLOUDFLARENETUS European Union 23->39 41 www.meacci.xyz 13.248.169.48, 49714, 49715, 49716 AMAZON-02US United States 23->41 67 Found direct / indirect Syscall (likely to bypass EDR) 23->67 signatures15
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-03-05 10:58:01 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dvidjulj7mmaa4yxp7thd4mbcwzmur3ufieuemob5naw765cubwq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
error
GuLoader
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/250306-n2e7haxxat/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/994a6a18-defb-4d3a-84bd-a90503043630
Unpacked files
SH256 hash:
1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d
MD5 hash:
6570f5a2315ed744c1136a67f824b37e
SHA1 hash:
6becc54c615e1fc880c67e2cd80b2895f45b0549
Link:
https://www.unpac.me/results/fda7dde9-e039-46cf-a308-ff2c5c59d3b4/
SH256 hash:
852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5
MD5 hash:
be2621a78a13a56cf09e00dd98488360
SHA1 hash:
75f0539dc6af200a07cdb056cddddec595c6cfd2
Link:
https://www.unpac.me/results/fda7dde9-e039-46cf-a308-ff2c5c59d3b4/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1d5034d169fb/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/1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d

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: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

GuLoader

Executable exe 1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::GetWindowsDirectoryW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments