MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b. 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


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Vendor detections: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b
SHA3-384 hash: 3da30fd2785683766ff66aaa8361e310073e84e3aa7e3cf91915125ff3198cb6555aa3bc5590a1df36f96bb5aa1dea13
SHA1 hash: ecce12d8ec9bcb7cbab627c3539e7eb199bc4bb3
MD5 hash: 55ef16c6bc615a79c09aebdfb6077b39
humanhash: yellow-jig-solar-low
File name:OCCT.exe
Download: download sample
Signature Stop
Create hunting rule
File size:2'619'264 bytes
First seen:2023-11-28 14:43:30 UTC
Last seen:2023-11-28 16:19:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5a5081b1176ce07a5e6ebc3dbd7a5ce3 (1 x Smoke Loader, 1 x Stop)
ssdeep 49152:IKkl/M0EOFreudY6+idOP3SmT13QhkMrapZKAZc677HB1+vch5:IKa/3EOFreodOPJZORSZKA9XBU
TLSH T12CC512842F8A25FFD28BC7788151680FB9677BE3BD23B449678565090E327FA0FB2154
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 50c97c7c9c8ccbd0 (1 x Stop)
Reporter Xev
Tags:exe PrivateLoader Stop

Intelligence

File Origin
# of uploads :
2
# of downloads :
348
Origin country :
GR GR
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/460959/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader46.34347.3955.24958.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Modifying a system file
Connecting to a non-recommended domain
Sending an HTTP GET request
DNS request
Sending a custom TCP request
Replacing files
Launching a service
Launching a process
Reading critical registry keys
Creating a file
Sending a UDP request
Forced system process termination
Creating a process from a recently created file
Creating a process with a hidden window
Blocking the Windows Defender launch
Query of malicious DNS domain
Sending a TCP request to an infection source
Adding exclusions to Windows Defender
Sending an HTTP GET request to an infection source
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6565fcb66d3af192267433d7/reports/8b0cdb4d-354c-478d-b9b3-6de0aed0be77/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b
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:
RedLine Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/df8af91c-e6fd-4383-a8f2-6249530abe60
Result
Threat name:
BazaLoader, PrivateLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1349330
Signature
Adds a directory exclusion to Windows Defender
Adds extensions / path to Windows Defender exclusion list (Registry)
Antivirus detection for URL or domain
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (overwrites its own PE header)
Disable Windows Defender real time protection (registry)
Disables Windows Defender (deletes autostart)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Exclude list of file types from scheduled, custom, and real-time scanning
Found C&C like URL pattern
Found Tor onion address
Modifies Group Policy settings
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Schedule system process
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected BazaLoader
Yara detected PrivateLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1349330 Sample: OCCT.exe Startdate: 28/11/2023 Architecture: WINDOWS Score: 100 49 vk.com 2->49 51 sun6-21.userapi.com 2->51 53 4 other IPs or domains 2->53 73 Snort IDS alert for network traffic 2->73 75 Antivirus detection for URL or domain 2->75 77 Multi AV Scanner detection for dropped file 2->77 79 10 other signatures 2->79 10 OCCT.exe 11 21 2->10         started        signatures3 process4 dnsIp5 61 185.216.70.235, 49708, 49721, 80 CLOUDCOMPUTINGDE Germany 10->61 63 vk.com 93.186.225.194, 443, 49711, 49712 VKONTAKTE-SPB-AShttpvkcomRU Russian Federation 10->63 65 5 other IPs or domains 10->65 43 C:\Users\...\aIL5OWhf9KL9grgwwdMfqJ93.exe, PE32+ 10->43 dropped 45 C:\Windows\System32behaviorgraphroupPolicy\gpt.ini, ASCII 10->45 dropped 87 Creates HTML files with .exe extension (expired dropper behavior) 10->87 89 Disables Windows Defender (deletes autostart) 10->89 91 Tries to harvest and steal browser information (history, passwords, etc) 10->91 93 4 other signatures 10->93 15 aIL5OWhf9KL9grgwwdMfqJ93.exe 3 10->15         started        file6 signatures7 process8 file9 47 C:\Windows\System\svchost.exe, PE32+ 15->47 dropped 67 Found Tor onion address 15->67 69 Drops executables to the windows directory (C:\Windows) and starts them 15->69 71 Adds a directory exclusion to Windows Defender 15->71 19 svchost.exe 19 15->19         started        23 powershell.exe 23 15->23         started        25 powershell.exe 23 15->25         started        27 schtasks.exe 1 15->27         started        signatures10 process11 dnsIp12 55 185.196.21.125 TERRATRANSIT-ASDE Germany 19->55 57 104.243.38.65 RELIABLESITEUS United States 19->57 59 23 other IPs or domains 19->59 81 System process connects to network (likely due to code injection or exploit) 19->81 83 Multi AV Scanner detection for dropped file 19->83 85 Adds a directory exclusion to Windows Defender 19->85 29 powershell.exe 22 19->29         started        31 powershell.exe 19->31         started        33 conhost.exe 23->33         started        35 conhost.exe 25->35         started        37 conhost.exe 27->37         started        signatures13 process14 process15 39 conhost.exe 29->39         started        41 conhost.exe 31->41         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b
Detection:
tofsee
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b/
Threat name:
Win64.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-11-28 14:44:05 UTC
File Type:
PE+ (Exe)
Extracted files:
10
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hrafcuovt2tw2qi2u2eyperxhtkwgmspupazv7lh7gqcg2vxgwfq._file
Verdict:
malicious
Result
Malware family:
privateloader
Create hunting rule
Score:
  10/10
Tags:
family:privateloader loader spyware stealer
Link:
https://tria.ge/reports/231128-r35qbsag2s/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Drops file in System32 directory
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
PrivateLoader
Unpacked files
SH256 hash:
3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b
MD5 hash:
55ef16c6bc615a79c09aebdfb6077b39
SHA1 hash:
ecce12d8ec9bcb7cbab627c3539e7eb199bc4bb3
Link:
https://www.unpac.me/results/cdf629b2-22d3-45e0-a059-4a10365f90d2/
Malware family:
PrivateLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3c405151d59e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

Stop

Executable exe 3c405151d59ea76d411aa6898792373cd563324fa3c19afd67f9a0236ab7358b

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/460959/

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