MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b255c5ed25b5f0366e7ea587870c6b6bbdd190607e94dc5ab89569ff2a88268. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: 6b255c5ed25b5f0366e7ea587870c6b6bbdd190607e94dc5ab89569ff2a88268
SHA3-384 hash: 03defad7700de108ab6b4a0e72e784b3cbedb68185ad502872b61d18ad1eb1b5cc6bce5ae5728358f6b89533eba7185b
SHA1 hash: 9b46bf7641075a6a11030092540efab3d4d78bff
MD5 hash: 0e58728ab9aac7cdbfef58f8fda524b4
humanhash: network-football-carbon-hawaii
File name:SecuriteInfo.com.generic.ml.14718.2915
Download: download sample
Signature GuLoader
File size:554'808 bytes
First seen:2022-08-29 10:58:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (274 x GuLoader, 36 x RemcosRAT, 23 x AgentTesla)
ssdeep 6144:Ep+ggXJwbWkciVDkdDBCABfAdYED0PNgJ/8q1LDfluaBbNQzxBeYyyv1nkXlPjoz:EMJLIVYd9zfA/J1EaBpcJ1cov4q
Threatray 3'316 similar samples on MalwareBazaar
TLSH T145C412717150C6A2EDA9CB319C66C99EEA11BE340E411D473680F77E3E72633D20EB5A
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):PE icon
dhash icon 717169d496e0cccc (6 x GuLoader)
Reporter SecuriteInfoCom
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Kokosbolle Afmarchernes
Issuer:Kokosbolle Afmarchernes
Algorithm:sha256WithRSAEncryption
Valid from:2021-09-05T21:52:03Z
Valid to:2024-09-04T21:52:03Z
Serial number: -3f3d7db46133e98a
Thumbprint Algorithm:SHA256
Thumbprint: 898bf1d665fea9a110da8214770c5b098b01f71fedd43258ff7ff2e85cda70ab
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
308
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Completed_wire_14976474491.xlsx
Verdict:
Malicious activity
Analysis date:
2022-08-29 06:28:11 UTC
Tags:
exploit CVE-2017-11882 loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Delayed reading of the file
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore, GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Malicious sample detected (through community Yara rule)
Mass process execution to delay analysis
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: NanoCore
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 692302 Sample: SecuriteInfo.com.generic.ml... Startdate: 29/08/2022 Architecture: WINDOWS Score: 100 85 Snort IDS alert for network traffic 2->85 87 Multi AV Scanner detection for domain / URL 2->87 89 Malicious sample detected (through community Yara rule) 2->89 91 7 other signatures 2->91 8 SecuriteInfo.com.generic.ml.14718.2915.exe 1 49 2->8         started        12 CasPol.exe 2->12         started        14 dslmon.exe 2->14         started        16 dslmon.exe 2->16         started        process3 file4 75 C:\Users\user\AppData\Local\...\PanelInfo.dll, PE32+ 8->75 dropped 77 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->77 dropped 79 C:\Users\user\AppData\Local\...\System.dll, PE32 8->79 dropped 101 Writes to foreign memory regions 8->101 103 Mass process execution to delay analysis 8->103 105 Tries to detect Any.run 8->105 18 CasPol.exe 8->18         started        23 powershell.exe 8->23         started        25 CasPol.exe 8->25         started        33 127 other processes 8->33 27 conhost.exe 12->27         started        29 conhost.exe 14->29         started        31 conhost.exe 16->31         started        signatures5 process6 dnsIp7 81 amegroupofschoos32.sytes.net 37.139.129.91, 49767, 49768, 49769 LVLT-10753US Germany 18->81 83 79.110.62.213, 49766, 80 LASOTELFR Germany 18->83 69 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->69 dropped 71 C:\Users\user\AppData\Local\...\tmpDC55.tmp, XML 18->71 dropped 73 C:\Program Files (x86)\...\dslmon.exe, PE32 18->73 dropped 93 Tries to detect Any.run 18->93 95 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->95 35 schtasks.exe 18->35         started        37 schtasks.exe 18->37         started        39 conhost.exe 18->39         started        97 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 23->97 41 conhost.exe 23->41         started        99 Uses schtasks.exe or at.exe to add and modify task schedules 25->99 43 conhost.exe 33->43         started        45 conhost.exe 33->45         started        47 conhost.exe 33->47         started        49 145 other processes 33->49 file8 signatures9 process10 process11 51 conhost.exe 35->51         started        53 conhost.exe 37->53         started        55 conhost.exe 43->55         started        57 conhost.exe 45->57         started        59 conhost.exe 47->59         started        61 conhost.exe 49->61         started        63 conhost.exe 49->63         started        65 conhost.exe 49->65         started        67 19 other processes 49->67
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2022-08-29 10:59:11 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Loads dropped DLL
Unpacked files
SH256 hash:
bb7e367bee3e91651d444db3c2f0997de914650547c66473bb201a2724d49196
MD5 hash:
6ea4aa54a7837e790c0b822dc8c27cd6
SHA1 hash:
1ed173163c496c482b36ef737fb6832e2b82cb6e
SH256 hash:
8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6
MD5 hash:
3d366250fcf8b755fce575c75f8c79e4
SHA1 hash:
2ebac7df78154738d41aac8e27d7a0e482845c57
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
SH256 hash:
6b255c5ed25b5f0366e7ea587870c6b6bbdd190607e94dc5ab89569ff2a88268
MD5 hash:
0e58728ab9aac7cdbfef58f8fda524b4
SHA1 hash:
9b46bf7641075a6a11030092540efab3d4d78bff
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

GuLoader

Executable exe 6b255c5ed25b5f0366e7ea587870c6b6bbdd190607e94dc5ab89569ff2a88268

(this sample)

  
Delivery method
Distributed via web download

Comments