MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 7f6af80f59437303f1f0282e798c57619cc1c013cb08c66810595952558fdcc9. 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: | 7f6af80f59437303f1f0282e798c57619cc1c013cb08c66810595952558fdcc9 |
|---|---|
| SHA3-384 hash: | 1a014f17eea1ef27468197749ff8b21f4c1f3b61cfd65ab09b44f82d80338f678a5d0cdf17e337455f4c5fa7bc142b3f |
| SHA1 hash: | 49ad46d2e9c9d192d724a93c10f3dee6a4ceb437 |
| MD5 hash: | acdff95b807857e09b16365ec75fe756 |
| humanhash: | mexico-shade-twenty-mississippi |
| File name: | Invoices.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 535'440 bytes |
| First seen: | 2023-12-14 07:24:00 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e221f4f7d36469d53810a4b5f9fc8966 (118 x GuLoader, 28 x RemcosRAT, 21 x Formbook) |
| ssdeep | 12288:tlvcllopsALNMiipb+nDHAj5b+EgOIz+5/dGU62gr4XlPZHwsEL2G7E:WzyNMiiV+n0j5b+gR6/StZHARE |
| Threatray | 169 similar samples on MalwareBazaar |
| TLSH | T164B42392FAC04ED2F166437A5E73BE6A62A3EE3524717B2F0B1572265E331C3442950B |
| 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 | 8253f5f5f5f5f5d5 (1 x GuLoader) |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
313
Origin country :
NLVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Invoices.xls
Verdict:
Malicious activity
Analysis date:
2023-12-14 08:06:55 UTC
Tags:
opendir exploit cve-2017-11882 loader formbook xloader stealer spyware
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Suspicious
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Searching for the window
Launching a process
Gathering data
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed shell32
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
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:
FormBook, GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Found suspicious powershell code related to unpacking or dynamic code loading
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Very long command line found
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-12-14 06:19:34 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
16 of 23 (69.57%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 159 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader persistence
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Adds policy Run key to start application
Guloader,Cloudeye
Unpacked files
SH256 hash:
7f6af80f59437303f1f0282e798c57619cc1c013cb08c66810595952558fdcc9
MD5 hash:
acdff95b807857e09b16365ec75fe756
SHA1 hash:
49ad46d2e9c9d192d724a93c10f3dee6a4ceb437
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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