MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8db83c5c1507e0307df594c1f068faef19e6e3377dd8d6ed3c9610b70bf93356. 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: | 8db83c5c1507e0307df594c1f068faef19e6e3377dd8d6ed3c9610b70bf93356 |
|---|---|
| SHA3-384 hash: | 291a07cda3de882119a742a748240bb30e619eb904c0caea2f342cac99e3b7b3fc089b96f47af21c9cfa305ec66b0003 |
| SHA1 hash: | 8e75538216a19161b66826df9c90726b060d04ab |
| MD5 hash: | 816edf6bf364af6cc175b228d2c58f6a |
| humanhash: | nebraska-friend-quebec-nevada |
| File name: | 816edf6bf364af6cc175b228d2c58f6a |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 657'901 bytes |
| First seen: | 2022-05-17 09:49:46 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki) |
| ssdeep | 12288:g3LAfN2GGisyOIm4i5CPnRp3VuQDYA0XZmbZuUkWhUs1NBSI:g3MfN2GPxLi5CJp3wQEA4mwRGNcI |
| Threatray | 1'751 similar samples on MalwareBazaar |
| TLSH | T141E412613B98CC47F3604A705AA1C33EE674DE251C9ECA13A6E07D9F71B9BC5981D203 |
| TrID | 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 16.4% (.EXE) Win64 Executable (generic) (10523/12/4) 10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.0% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | 39787839786cec4c (4 x GuLoader) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ShipmentReceipt93213628045.xlsx
Verdict:
Malicious activity
Analysis date:
2022-05-17 03:31:34 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Creating a file
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
guloader nanocore
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.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Downloader.GuLoader
Status:
Malicious
First seen:
2022-05-17 04:55:09 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
18 of 26 (69.23%)
Threat level:
3/5
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 1'741 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
74e9c49cacb1a755a720c59c37ddcf5b3b28403e35bf4fdc54b7c95a67b97116
MD5 hash:
8b300a197ca372f984ef0ef033508aec
SHA1 hash:
a2767b25fc6c44b068adb9953b7f4ad520921f8b
SH256 hash:
8db83c5c1507e0307df594c1f068faef19e6e3377dd8d6ed3c9610b70bf93356
MD5 hash:
816edf6bf364af6cc175b228d2c58f6a
SHA1 hash:
8e75538216a19161b66826df9c90726b060d04ab
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.
Web download
Delivery method
Distributed via web download
Comments
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