MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 479f929625a3e8a8f98256c3a020f5946e0d88fd7e3582e47b63500679d46585. 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


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 479f929625a3e8a8f98256c3a020f5946e0d88fd7e3582e47b63500679d46585
SHA3-384 hash: 7d80b7ef9b7723e7658cd669359cc0f511157367c217d67738fe53c25c70b5ff366f0cf9cdef2843ca2a77ba9e5ac04b
SHA1 hash: b863f2d9704acdb5b6997d5e1fc5f14ba63cafae
MD5 hash: 94ff2c9d56dd14314effbe882e5e493e
humanhash: bravo-avocado-eight-alaska
File name:94ff2c9d56dd14314effbe882e5e493e.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:102'400 bytes
First seen:2021-02-18 15:56:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 28cfb83efbb0b6bd426b66f31651da5c (16 x GuLoader, 1 x RemcosRAT)
ssdeep 1536:g8wuftnlm70C5TILXOqkHAvOSCV6X14UgTGV8yZW64:gDujCFVTgvu8F4UQ64
Threatray 86 similar samples on MalwareBazaar
TLSH 77A3097279A0DDF5E59480310922F76C0913BF338445AE6FBACC7A1E1A77AC39485D2B
Reporter abuse_ch
Tags:exe GuLoader


Avatar
abuse_ch
GuLoader payload URL:
http://mtspsmjeli.sch.id/cl/wazzyfeb2021_XEeStqfpQ150.bin

Intelligence

File Origin
# of uploads :
1
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/117835/
Detection(s):
Win.Malware.Generic-9833026-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
DNS request
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Deleting a recently created file
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
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.
Result
Threat name:
NanoCore GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/611817
Signature
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 354920 Sample: w0JlVAbpIT.exe Startdate: 18/02/2021 Architecture: WINDOWS Score: 100 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 Sigma detected: Scheduled temp file as task from temp location 2->57 59 7 other signatures 2->59 8 w0JlVAbpIT.exe 1 2->8         started        11 RegAsm.exe 4 2->11         started        14 dhcpmon.exe 4 2->14         started        16 dhcpmon.exe 3 2->16         started        process3 file4 67 Writes to foreign memory regions 8->67 69 Tries to detect Any.run 8->69 71 Hides threads from debuggers 8->71 18 RegAsm.exe 1 21 8->18         started        45 C:\Users\user\AppData\...\RegAsm.exe.log, ASCII 11->45 dropped 23 conhost.exe 11->23         started        25 conhost.exe 14->25         started        27 conhost.exe 16->27         started        signatures5 process6 dnsIp7 47 mtspsmjeli.sch.id 103.150.60.242, 49736, 80 PC24NET-AS-IDPTPC24TelekomunikasiIndonesiaID unknown 18->47 49 wazzy113.ddns.net 46.243.219.15, 2420, 49739, 49741 FISHNET-ASRU Netherlands 18->49 51 192.168.2.1 unknown unknown 18->51 39 C:\Users\user\AppData\Roaming\...\run.dat, data 18->39 dropped 41 C:\Users\user\AppData\Local\...\tmpCDDC.tmp, XML 18->41 dropped 43 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->43 dropped 61 Tries to detect Any.run 18->61 63 Hides threads from debuggers 18->63 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->65 29 schtasks.exe 1 18->29         started        31 schtasks.exe 1 18->31         started        33 conhost.exe 18->33         started        file8 signatures9 process10 process11 35 conhost.exe 29->35         started        37 conhost.exe 31->37         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/479f929625a3e8a8f98256c3a020f5946e0d88fd7e3582e47b63500679d46585/
Threat name:
Win32.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-02-18 15:57:05 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=i6pzffrfupukr6mck3b2aihvsrxa3ch5py2yfzd3mniam6oumwcq._file
Verdict:
malicious
Label(s):
guloader
Create hunting rule
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c6e5156c311412210237810450648947699d1c4862536a4e86b778e899627292
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GuLoader
+ 76 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210218-ss9z5x58vs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
wazzy113.ddns.net:2420
Unpacked files
SH256 hash:
479f929625a3e8a8f98256c3a020f5946e0d88fd7e3582e47b63500679d46585
MD5 hash:
94ff2c9d56dd14314effbe882e5e493e
SHA1 hash:
b863f2d9704acdb5b6997d5e1fc5f14ba63cafae
Link:
https://www.unpac.me/results/98a5b83e-0ccc-44f1-8597-5e5ff77a611a/
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 479f929625a3e8a8f98256c3a020f5946e0d88fd7e3582e47b63500679d46585

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1016368/
  
URLhaus
https://urlhaus.abuse.ch/url/1017057/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/117835/

Comments