MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a057aab2994c9b2d3214e2ebdfa28dcce023546bf7154c8832bd27112c693e86. 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: | a057aab2994c9b2d3214e2ebdfa28dcce023546bf7154c8832bd27112c693e86 |
|---|---|
| SHA3-384 hash: | d5585f93e105cbddc6b544f1de5b8410606f284428265c99f2a2d086bddee5cfc9e106b4a04d2ae1531a7eaa6a49071e |
| SHA1 hash: | a162bb997b463eda62d6fbbda2d1cb3df1a3c39b |
| MD5 hash: | e5affde0f5a1c4a9add0486f25a7a84f |
| humanhash: | mirror-beer-ten-fillet |
| File name: | RFQ#467_DECMaT_PRODHangzhou_Zhongniu_Import_Export_pdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 429'643 bytes |
| First seen: | 2023-12-04 09:12:57 UTC |
| Last seen: | 2023-12-04 11:21:46 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 66fcdd6338ffed276966867e7cf86116 (9 x GuLoader, 2 x AgentTesla, 2 x RemcosRAT) |
| ssdeep | 12288:QaWD2cfgiCZWzsACEPn1bpb5eYErd0CL4rTsv:hWy4HChACCnNpb5eYIBLSa |
| Threatray | 674 similar samples on MalwareBazaar |
| TLSH | T1579423FA2FB584EAE85B8EB464328E57C67790321468920FC7EC7D81B971181DE0DBD1 |
| 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) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | 74f4d4d4d498b4d4 (6 x AgentTesla, 2 x RemcosRAT, 1 x PureCrypter) |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
3
# of downloads :
308
Origin country :
NLVendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Suspicious
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file in the Windows directory
Сreating synchronization primitives
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Launching a process
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed shell32
Verdict:
Malicious
Labled as:
Malware
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Initial sample is a PE file and has a suspicious name
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: MSBuild connects to smtp port
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Very long command line found
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-12-04 08:14:38 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
13 of 23 (56.52%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 664 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:agenttesla family:guloader downloader keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Guloader,Cloudeye
Unpacked files
SH256 hash:
a057aab2994c9b2d3214e2ebdfa28dcce023546bf7154c8832bd27112c693e86
MD5 hash:
e5affde0f5a1c4a9add0486f25a7a84f
SHA1 hash:
a162bb997b463eda62d6fbbda2d1cb3df1a3c39b
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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
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