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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41c725abdd5d0e8fb101d92e777c47f7b90e8f2b1c9ae0727549b4de604ecd83. 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


ZLoader


Vendor detections: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41c725abdd5d0e8fb101d92e777c47f7b90e8f2b1c9ae0727549b4de604ecd83
SHA3-384 hash: ce71e087e00a8122adf6536666002b7a39f2605f574b4c3c27dd573b102bf3092ba95b26df79bc23af9ab5886406e580
SHA1 hash: 7ceaf8aa85a288b9ea2eba8d9dcd7ea1836ae78d
MD5 hash: 8fba28241a6fe93b03e5403b89750453
humanhash: arkansas-yankee-april-early
File name:41c725abdd5d0e8fb101d92e777c47f7b90e8f2b1c9ae0727549b4de604ecd83
Download: download sample
Signature ZLoader
Create hunting rule
File size:178'176 bytes
First seen:2020-11-09 09:18:00 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash c4a8909c0bccc13eaa9bdf93bacea9e6 (9 x ZLoader)
ssdeep 3072:FVyJQtmE74hI8QIBZYQeqw/MzeKeS2NeR8ONIRUTAQ:FMJQtmE7bGkqiKyeR8OiRUv
TLSH FB0428015480C578E910107009CEF7BA8D6D923E6F62EBE7DBD1C890ABD86F2697D61F
Reporter seifreed
Tags:ZLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching a process
Result
Threat name:
ZLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/526859
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to inject code into remote processes
Found C&C like URL pattern
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Writes to foreign memory regions
Yara detected ZLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 312518 Sample: ure0CQYaBw Startdate: 09/11/2020 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 6 other signatures 2->50 8 loaddll32.exe 1 2->8         started        10 rundll32.exe 2->10         started        12 rundll32.exe 2->12         started        process3 process4 14 regsvr32.exe 8->14         started        17 cmd.exe 1 8->17         started        19 rundll32.exe 10->19         started        21 rundll32.exe 12->21         started        signatures5 52 Contains functionality to inject code into remote processes 14->52 54 Writes to foreign memory regions 14->54 56 Allocates memory in foreign processes 14->56 23 msiexec.exe 3 25 14->23         started        27 iexplore.exe 1 74 17->27         started        process6 dnsIp7 34 marchadvertisingnetwork5.com 58.158.177.102, 49780, 49781, 49782 UCOMARTERIANetworksCorporationJP Japan 23->34 36 marchadvertisingnetwork4.com 23->36 32 C:\Users\user\AppData\...\sofyboek.dll, PE32 23->32 dropped 29 iexplore.exe 159 27->29         started        file8 process9 dnsIp10 38 edge.gycpi.b.yahoodns.net 87.248.118.23, 443, 49743, 49744 YAHOO-DEBDE United Kingdom 29->38 40 tls13.taboola.map.fastly.net 151.101.1.44, 443, 49745, 49746 FASTLYUS United States 29->40 42 9 other IPs or domains 29->42
Detection:
zloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/41c725abdd5d0e8fb101d92e777c47f7b90e8f2b1c9ae0727549b4de604ecd83/
Threat name:
Win32.Trojan.ZLoader
Create hunting rule
Status:
Malicious
First seen:
2020-11-09 09:20:55 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ihdslk65luhi7mib3exho7ch664q5dzldsnoa4tvjg2n4ycozwbq._file
Result
Malware family:
zloader
Create hunting rule
Score:
  10/10
Tags:
family:zloader botnet:plspam campaign:plspam botnet persistence trojan
Link:
https://tria.ge/reports/201109-3lxdqhlpl6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Blacklisted process makes network request
Zloader, Terdot, DELoader, ZeusSphinx
Malware Config
C2 Extraction:
http://marchadvertisingnetwork4.com/post.php
http://marchadvertisingnetwork5.com/post.php
http://marchadvertisingnetwork6.com/post.php
http://marchadvertisingnetwork7.com/post.php
http://marchadvertisingnetwork8.com/post.php
http://marchadvertisingnetwork9.com/post.php
http://marchadvertisingnetwork10.com/post.php
Please note that we are no longer able to provide a coverage score for Virus Total.

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:crime_win32_zloader_load_1
Create hunting rule
Author:@VK_Intel
Description:Detects Zloader loader 1.1.20
Reference:https://twitter.com/malwrhunterteam/status/1240664014121828352
Rule name:win_zloader_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:ZLoader
Create hunting rule
Author:@bartblaze
Description:Identifies ZLoader in memory or unpacked.

File information

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

  
Delivery method
Other

Comments