MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 36c9e45f7928a552dedae93bf7e53bea5c2b3e52add087babfcc8752b760c8d5. 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
| SHA256 hash: | 36c9e45f7928a552dedae93bf7e53bea5c2b3e52add087babfcc8752b760c8d5 |
|---|---|
| SHA3-384 hash: | 3dafa159448701855e396f4c30a804c8aa6115d46e0581e9679402ed1c6fa859fa16c73abd0da56ff8dee9b8af9062ad |
| SHA1 hash: | 11e7cf6e6973dd8f46e0ef36a67eb20063134da9 |
| MD5 hash: | effc267b681c3e567f5ed20def756d22 |
| humanhash: | twelve-beryllium-hawaii-juliet |
| File name: | Payment Error Report.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 834'916 bytes |
| First seen: | 2025-02-25 10:54:55 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e221f4f7d36469d53810a4b5f9fc8966 (118 x GuLoader, 28 x RemcosRAT, 21 x Formbook) |
| ssdeep | 24576:fXrqImBCUkwIzhGPjkczrFCD7R7VlN59UV+pS:fWISbkcXFCD71VlN59k0S |
| Threatray | 1 similar samples on MalwareBazaar |
| TLSH | T16A05F126E57A067BC0BB6739AADF901132B50E3137F7053B3378BA2A71713129C9DA45 |
| 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 | 5d9c6ce4d4929005 (19 x GuLoader) |
| Reporter |  TeamDreier |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
518
Origin country :
DKVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PaymentErrorReport.exe
Verdict:
Malicious activity
Analysis date:
2025-02-25 11:00:35 UTC
Tags:
purecrypter purelogs stealer exfiltration zgrat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Tags:
injection virus nsis
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Creating a file
Delayed reading of the file
Restart of the analyzed sample
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
adaptive-context blackhole installer masquerade microsoft_visual_cc obfuscated overlay packed packer_detected
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Verdict:
Suspicious
Result
Threat name:
Discord Token Stealer, GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Discord Token Stealer
Yara detected Generic Stealer
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2025-02-25 07:13:18 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
22 of 38 (57.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader collection discovery downloader spyware stealer
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
36c9e45f7928a552dedae93bf7e53bea5c2b3e52add087babfcc8752b760c8d5
MD5 hash:
effc267b681c3e567f5ed20def756d22
SHA1 hash:
11e7cf6e6973dd8f46e0ef36a67eb20063134da9
SH256 hash:
4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe
MD5 hash:
3e6bf00b3ac976122f982ae2aadb1c51
SHA1 hash:
caab188f7fdc84d3fdcb2922edeeb5ed576bd31d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.79
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 |
|---|---|
| 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
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| COM_BASE_API | Can Download & Execute components | ole32.dll::CoCreateInstance |
| SHELL_API | Manipulates System Shell | SHELL32.dll::ShellExecuteW SHELL32.dll::SHFileOperationW SHELL32.dll::SHGetFileInfoW |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessW KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetDiskFreeSpaceW KERNEL32.dll::GetCommandLineW |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::MoveFileW KERNEL32.dll::GetWindowsDirectoryW |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW |
| WIN_USER_API | Performs GUI Actions | USER32.dll::AppendMenuW USER32.dll::EmptyClipboard USER32.dll::FindWindowExW USER32.dll::OpenClipboard USER32.dll::PeekMessageW USER32.dll::CreateWindowExW |
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