MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b9b78528efaa39eda121c478cdae30464f3f3046efbf13905e29d19fbf5373b1. 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: 11
| SHA256 hash: | b9b78528efaa39eda121c478cdae30464f3f3046efbf13905e29d19fbf5373b1 |
|---|---|
| SHA3-384 hash: | 26589d15a1efeba437f00bcdc9baf8d9fb68633194c02d713366dd55e5a947ccc03e079b5bbc95553e225c66ae00654d |
| SHA1 hash: | f7ab8fb65093f26dc9cbe03a694f7416b0e33347 |
| MD5 hash: | e6e505189b910675d61d54ac0c6b813d |
| humanhash: | delta-cold-stream-blossom |
| File name: | KEO-Order-3AY37A-APRIL_3103734_SUA721302_301824_01AU481924.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 498'170 bytes |
| First seen: | 2024-05-10 07:30:16 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fd61eafe142870d6d0380163804a642 (39 x GuLoader, 6 x RemcosRAT, 4 x AgentTesla) |
| ssdeep | 12288:2OLjmwzqoFl1EE+fXDRwjd4CrkOIfhoC6WzwxC3+kMZ7pH:fjmw31EEGXDKkNhoC6f4WpH |
| Threatray | 282 similar samples on MalwareBazaar |
| TLSH | T15AB412113EF671CEC8D1D6B68676B6B996CEAE10072312475FB03A4E0F37219C9371A6 |
| 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) |
| File icon (PE): |  |
| dhash icon | 10f0c4c8c8c4f010 (26 x AgentTesla, 18 x Smoke Loader, 10 x Formbook) |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
299
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b9b78528efaa39eda121c478cdae30464f3f3046efbf13905e29d19fbf5373b1.exe
Verdict:
Malicious activity
Analysis date:
2024-05-10 07:38:51 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Delayed reading of the file
Creating a file
Creating a file in the %AppData% subdirectories
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
guloader installer lolbin masquerade overlay packed shell32
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Unknown
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2024-04-16 07:32:00 UTC
File Type:
PE (Exe)
Extracted files:
94
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 272 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader persistence
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
f0cd96e0b6e40f92ad1aa0efacde833bae807b92fca19bf062c1cf8acf29484b
MD5 hash:
b853d5d2361ade731e33e882707efc34
SHA1 hash:
c58b1aeabdf1cbb8334ef8797e7aceaa7a1cb6be
SH256 hash:
f03f83b88cd846b9cf05116c545fbb557f4ff37ce0bb0b2bee2ff0b4bde23a81
MD5 hash:
6f9797fdc4fc7fca503af580999d4682
SHA1 hash:
8c8e234c4646e489c29efc00f2c9a9b8aa06f55e
SH256 hash:
b9b78528efaa39eda121c478cdae30464f3f3046efbf13905e29d19fbf5373b1
MD5 hash:
e6e505189b910675d61d54ac0c6b813d
SHA1 hash:
f7ab8fb65093f26dc9cbe03a694f7416b0e33347
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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 |
| CHECK_NX | Missing Non-Executable Memory Protection | critical |
| CHECK_PIE | Missing Position-Independent Executable (PIE) Protection | 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 |
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.