MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ffcbfcbed07d5e565d760e9a867544d37fc2e5c86d59cdcb8cff5b38f9572685. 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: 10
| SHA256 hash: | ffcbfcbed07d5e565d760e9a867544d37fc2e5c86d59cdcb8cff5b38f9572685 |
|---|---|
| SHA3-384 hash: | 89b91d8f4a85f669d3c71f4a90a9e727489de4bcf44b61729888a9e7729cada060b95acf69ae3e00407836ad0a5caef0 |
| SHA1 hash: | 89a09798d2de1830fab5f73f87cfe76505a10b94 |
| MD5 hash: | 62dad7fd1e556de6908b9653cc9f9049 |
| humanhash: | stairway-tennessee-ohio-butter |
| File name: | BFIND040724-25 MAY.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 540'808 bytes |
| First seen: | 2024-05-10 10:59:50 UTC |
| Last seen: | 2024-05-10 14:01:04 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e871f39e81b4aa977737b07cee050825 (15 x GuLoader, 3 x Formbook, 2 x RemcosRAT) |
| ssdeep | 12288:yNjF+aZ0TgXWheFfCvZHbhPslpkUdDYNkmC:4jF+aaTgXWheFfAvUJYi |
| TLSH | T19DB4F142B10291A5CFEC563049B7DCB217363DB98880274FB3F97BE728BA152605F65B |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 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) |
| Reporter |  lowmal3 |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | subtraherendes |
|---|---|
| Issuer: | subtraherendes |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2023-10-24T02:52:20Z |
| Valid to: | 2026-10-23T02:52:20Z |
| Serial number: | 2ee97471c7ee62d29d4ed4f50f9f162576f31120 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 88ede8b4cd02940fccc498ac1e0df276cccb1167b7d0d73af53b89679d6f8e5d |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
331
Origin country :
DEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ffcbfcbed07d5e565d760e9a867544d37fc2e5c86d59cdcb8cff5b38f9572685.exe
Verdict:
Malicious activity
Analysis date:
2024-05-10 11:01:37 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
installer lolbin overlay packed shell32
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Malware family:
GuLoader
Verdict:
Malicious
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Signature
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2024-05-10 08:02:59 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
13 of 24 (54.17%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
unknown
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
c85142f86e1ec02f7ef8d5ba31b22031de3de9a16bce519d5482b824afb277eb
MD5 hash:
10e8921a6e7f6a74671b07dc3bde626f
SHA1 hash:
b7961066600ef193c5319dbeed3673dc60110a50
SH256 hash:
ffcbfcbed07d5e565d760e9a867544d37fc2e5c86d59cdcb8cff5b38f9572685
MD5 hash:
62dad7fd1e556de6908b9653cc9f9049
SHA1 hash:
89a09798d2de1830fab5f73f87cfe76505a10b94
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
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: | NSIS_April_2024 |
|---|---|
| Author: | NDA0N |
| Description: | Detects NSIS installers |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
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_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| AUTH_API | Manipulates User Authorization | ADVAPI32.dll::SetFileSecurityA |
| COM_BASE_API | Can Download & Execute components | ole32.dll::CoCreateInstance |
| SECURITY_BASE_API | Uses Security Base API | ADVAPI32.dll::AdjustTokenPrivileges |
| SHELL_API | Manipulates System Shell | SHELL32.dll::ShellExecuteExA SHELL32.dll::SHFileOperationA SHELL32.dll::SHGetFileInfoA |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessA ADVAPI32.dll::OpenProcessToken KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::LoadLibraryExA KERNEL32.dll::GetDiskFreeSpaceA KERNEL32.dll::GetCommandLineA |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CopyFileA KERNEL32.dll::CreateDirectoryA KERNEL32.dll::CreateFileA KERNEL32.dll::DeleteFileA KERNEL32.dll::MoveFileA KERNEL32.dll::MoveFileExA |
| WIN_BASE_USER_API | Retrieves Account Information | ADVAPI32.dll::LookupPrivilegeValueA |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExA ADVAPI32.dll::RegDeleteKeyA ADVAPI32.dll::RegOpenKeyExA ADVAPI32.dll::RegQueryValueExA ADVAPI32.dll::RegSetValueExA |
| WIN_USER_API | Performs GUI Actions | USER32.dll::AppendMenuA USER32.dll::EmptyClipboard USER32.dll::FindWindowExA USER32.dll::OpenClipboard USER32.dll::PeekMessageA USER32.dll::CreateWindowExA |
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