MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417. 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


Latrodectus


Vendor detections: 8


Intelligence 8 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417
SHA3-384 hash: c0ab0f8e6ef2baf88b643ab40a0f6e23cf3d302429e883ce639e90608b00d95b03d944e024b74731288c8df91bd7c89e
SHA1 hash: 3d011c54ae9a66ef2a865afd694712b338feed5d
MD5 hash: f83ed040b4e52088817df73ef51fe0d3
humanhash: mockingbird-east-black-table
File name:bim.msi
Download: download sample
Signature Latrodectus
Create hunting rule
File size:1'372'160 bytes
First seen:2024-04-29 18:18:19 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 24576:ezTxLN3YlMvZCFlp8zBQSc0ZoCvqKox0ECIgYmfLVYeBZr7AL7EveuFPY:ezz3YuW8zBQSc0ZnSKmZKumZr7AfEvLY
Threatray 195 similar samples on MalwareBazaar
TLSH T14E55C0227386C537C96E01303A2AD66B5579FDB74B3140DBA3C82D2E9EB44C16639F93
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter proxylife
Tags:Latrodectus msi

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
CAB fingerprint installer keylogger lolbin packed remote shell32
Link:
https://www.filescan.io/uploads/662fe49954bafb7d21e6408f/reports/9f0fcf35-f9cc-42dc-8ad2-a19b30f91964/overview
Verdict:
Suspicious
Link:
https://www.hybrid-analysis.com/sample/a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417
Result
Threat name:
Latrodectus
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1433593
Signature
C2 URLs / IPs found in malware configuration
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
PE file contains section with special chars
Sample uses string decryption to hide its real strings
System process connects to network (likely due to code injection or exploit)
Yara detected Latrodectus
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433593 Sample: bim.msi Startdate: 29/04/2024 Architecture: WINDOWS Score: 80 45 jarinamaers.shop 2->45 49 Found malware configuration 2->49 51 Yara detected Latrodectus 2->51 53 Sample uses string decryption to hide its real strings 2->53 55 2 other signatures 2->55 7 msiexec.exe 15 38 2->7         started        11 rundll32.exe 2 2->11         started        13 msiexec.exe 9 2->13         started        15 rundll32.exe 2->15         started        signatures3 process4 file5 27 C:\Windows\Installer\MSI9ACB.tmp, PE32 7->27 dropped 29 C:\Windows\Installer\MSI92BB.tmp, PE32 7->29 dropped 31 C:\Windows\Installer\MSI9172.tmp, PE32 7->31 dropped 33 C:\Users\user\AppData\Local\glosar\beta.dll, PE32+ 7->33 dropped 57 Drops executables to the windows directory (C:\Windows) and starts them 7->57 17 MSI9ACB.tmp 7->17         started        19 msiexec.exe 7->19         started        21 msiexec.exe 7->21         started        35 C:\Users\user\AppData\...\Update_328582e2.dll, PE32+ 11->35 dropped 37 :wtfbbq (copy), PE32+ 11->37 dropped 23 rundll32.exe 12 11->23         started        39 C:\Users\user\AppData\Local\...\MSI903E.tmp, PE32 13->39 dropped 41 C:\Users\user\AppData\Local\...\MSI8FEF.tmp, PE32 13->41 dropped 43 4 other files (none is malicious) 13->43 dropped signatures6 process7 dnsIp8 47 jarinamaers.shop 104.21.46.75, 443, 49714, 49715 CLOUDFLARENETUS United States 23->47 59 System process connects to network (likely due to code injection or exploit) 23->59 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417/
Threat name:
Win64.Spyware.Latrodectus
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 18:19:11 UTC
File Type:
Binary (Archive)
Extracted files:
86
AV detection:
9 of 24 (37.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vh5aex7jclek2xtfm3dhlycfomwe3cpudb573fge5eln3h7ckqlq._file
Verdict:
malicious
Similar samples:
156c0afc01a5e346b95ebdb60cea9b7046ad7a61199cd63d6ad0f4ae32a576ac
Latrodectus
4e7ac0bdb516e983b3cab7f79850d8102d2bf4117bb343b68d0da73780cceb1a
Latrodectus
71a429fdbaa04f8eee80c05b123ba00635569801ca041fdc7c6ac41de8aa72d3
Latrodectus
8041a15e27c785f2adcce9e8c643f5cc619b52e50cd36ff043d13c4089ce1cad
Latrodectus
a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417
Latrodectus
bb9203ca1305e47a2ec1443a640efcd5e2c7d11223184639729673579e12967e
Latrodectus
+ 185 additional samples on MalwareBazaar
Result
Malware family:
latrodectus
Create hunting rule
Score:
  10/10
Tags:
family:latrodectus loader
Link:
https://tria.ge/reports/240429-wx6gwshc26/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Enumerates connected drives
Detect larodectus Loader variant 2
Latrodectus loader
Malware Config
C2 Extraction:
https://jarinamaers.shop/live/
https://startmast.shop/live/
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/a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Latrodectus
Create hunting rule
Author:enzok
Description:Latrodectus Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_OLE_file_magic_number
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:suspicious_msi_file
Create hunting rule
Author:Johnk3r
Description:Detects common strings, DLL and API in Banker_BR
Rule name:win_unidentified_111_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.unidentified_111.

File information

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

Web download

Latrodectus

Microsoft Software Installer (MSI) msi a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2831888/
  
Delivery method
Distributed via web download

Comments