MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c169a50f79367c282348c93d99790a6493d0b585030ddcafe770a9cb8eeced87. 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: 13


Intelligence 13 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c169a50f79367c282348c93d99790a6493d0b585030ddcafe770a9cb8eeced87
SHA3-384 hash: 9230e9a20cc2d3f86a4db787dca8749fe28d0eb81f361ce963391aef5cf37d8e538a32ef36cd7a7abef3bc380da08a96
SHA1 hash: 85d1fc65665aec97996ef9072e85c881b2e88131
MD5 hash: 50779df624494704e7e2d1c2b821a127
humanhash: bluebird-bakerloo-autumn-yellow
File name:50779df624494704e7e2d1c2b821a127.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:147'456 bytes
First seen:2021-03-16 19:22:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 82f3154e4b314b6810b189c7a61b6a27 (5 x GuLoader, 2 x RemcosRAT)
ssdeep 3072:UsBTX38jRuY4OW+G5gnsodMQ+IpxMgToXQBg:PURuY4/+G5gnsodMQ+IpxMgf
Threatray 430 similar samples on MalwareBazaar
TLSH D8E35A4332116C7CD6493430040EEA7A3622FCB291519F67B598BE2BE57D6C12DFAF1A
Reporter abuse_ch
Tags:exe GuLoader


Avatar
abuse_ch
GuLoader payload URL:
http://mtspsmjeli.sch.id/cl/11w_ZMldtRz89.bin

Intelligence

File Origin
# of uploads :
1
# of downloads :
340
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
50779df624494704e7e2d1c2b821a127.exe
Verdict:
Malicious activity
Analysis date:
2021-03-16 19:32:18 UTC
Tags:
opendir trojan guloader loader rat nanocore
Link:
https://app.any.run/tasks/3f420894-6e43-4195-a166-39e9d77d268b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/124414/
Detection(s):
SecuriteInfo.com.__vbaHresultCheckObj.8206.1440.UNOFFICIAL
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d6321591-a74e-40c6-a5b1-4a2eed1c8301
Result
Threat name:
Nanocore GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/641304
Signature
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
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 GuLoader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 369626 Sample: S5GuHGKzjH.exe Startdate: 16/03/2021 Architecture: WINDOWS Score: 100 53 Multi AV Scanner detection for domain / URL 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 9 other signatures 2->59 8 S5GuHGKzjH.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 69 Writes to foreign memory regions 8->69 71 Tries to detect Any.run 8->71 73 Hides threads from debuggers 8->73 18 RegAsm.exe 1 20 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 ghsgatvxbznmklopwagdhusvxbznxgtewuahjkop.ydns.eu 172.94.16.40, 6932 VOXILITYGB United States 18->47 49 mtspsmjeli.sch.id 103.150.60.242, 49693, 80 PC24NET-AS-IDPTPC24TelekomunikasiIndonesiaID unknown 18->49 51 127.0.0.1 unknown unknown 18->51 39 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 18->39 dropped 41 C:\Users\user\AppData\Local\...\tmpE249.tmp, XML 18->41 dropped 43 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->43 dropped 61 Uses schtasks.exe or at.exe to add and modify task schedules 18->61 63 Tries to detect Any.run 18->63 65 Hides threads from debuggers 18->65 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->67 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:
guloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c169a50f79367c282348c93d99790a6493d0b585030ddcafe770a9cb8eeced87/
Threat name:
Win32.Trojan.Malrep
Create hunting rule
Status:
Malicious
First seen:
2021-03-15 18:27:00 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yfu2kd3zgz6cqi2ize6zs6ikmsj5bnmfamg5zl7hocu4xdxm5wdq._file
Verdict:
malicious
Label(s):
guloader
Create hunting rule
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GuLoader
+ 420 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210316-a8311683ea/
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
Checks whether UAC is enabled
Checks QEMU agent file
NanoCore
Malware Config
C2 Extraction:
ghsgatvxbznmklopwagdhusvxbznxgtewuahjkop.ydns.eu:6932
127.0.0.1:6932
Unpacked files
SH256 hash:
c169a50f79367c282348c93d99790a6493d0b585030ddcafe770a9cb8eeced87
MD5 hash:
50779df624494704e7e2d1c2b821a127
SHA1 hash:
85d1fc65665aec97996ef9072e85c881b2e88131
Link:
https://www.unpac.me/results/714e2641-ad5a-4316-95dd-5a4ca2415310/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c169a50f79367c282348c93d99790a6493d0b585030ddcafe770a9cb8eeced87

File information

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

Web download

GuLoader

Executable exe c169a50f79367c282348c93d99790a6493d0b585030ddcafe770a9cb8eeced87

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1064761/
  
URLhaus
https://urlhaus.abuse.ch/url/1069564/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/124414/

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