MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 aca023c46e88d842d9cf0702ff8c4a09854ef67c41dec500e7d5dbf1c6be0d70. 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
| SHA256 hash: | aca023c46e88d842d9cf0702ff8c4a09854ef67c41dec500e7d5dbf1c6be0d70 |
|---|---|
| SHA3-384 hash: | 0abc1dfb4a3b290ac1eb333d11393bfd87c116a7f7aa035823fc60a3744b39800c90ec4bda05dc38ee4338101e15a931 |
| SHA1 hash: | 7adf122f27962c32c658627a4c26b7ea767d29c9 |
| MD5 hash: | 816ac88f7116bef15c30a683d4675029 |
| humanhash: | nebraska-cat-bulldog-butter |
| File name: | aca023c46e88d842d9cf0702ff8c4a09854ef67c41dec500e7d5dbf1c6be0d70 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 445'494 bytes |
| First seen: | 2025-08-12 14:00:01 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7ed0d71376e55d58ab36dc7d3ffda898 (133 x GuLoader, 28 x RemcosRAT, 23 x AgentTesla) |
| ssdeep | 12288:i6q99lk6/R9n51Cdf86dcdfHTR67s5DZOVzc/:w99zif4fHTzYVw/ |
| Threatray | 195 similar samples on MalwareBazaar |
| TLSH | T1AC94120077C4CCBAF1A21A32DA70CBF9D565EE4610E482575B6D3FA77C306408AFA6D6 |
| 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 | 34fcf0d4dcf0d2cc (5 x GuLoader, 4 x MassLogger, 4 x VIPKeylogger) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
33
Origin country :
HUVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
aca023c46e88d842d9cf0702ff8c4a09854ef67c41dec500e7d5dbf1c6be0d70
Verdict:
Malicious activity
Analysis date:
2025-08-12 15:38:39 UTC
Tags:
rat remcos
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
93.3%
Tags:
agentb nsis
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Searching for the window
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-debug blackhole installer microsoft_visual_cc overlay overlay
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Suspicious
Score:
95%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2025-07-22 04:37:25 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
22 of 38 (57.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 185 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos discovery rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Remcos
Remcos family
Malware Config
C2 Extraction:
inverterpos.duckdns.org:1987
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
aca023c46e88d842d9cf0702ff8c4a09854ef67c41dec500e7d5dbf1c6be0d70
MD5 hash:
816ac88f7116bef15c30a683d4675029
SHA1 hash:
7adf122f27962c32c658627a4c26b7ea767d29c9
SH256 hash:
df5ae79fa558dc7af244ec6e53939563b966e7dbd8867e114e928678dbd56e5d
MD5 hash:
ca332bb753b0775d5e806e236ddcec55
SHA1 hash:
f35ef76592f20850baef2ebbd3c9a2cfb5ad8d8f
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: | Detect_NSIS_Nullsoft_Installer |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| 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.
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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