MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d83d5378f1bb37d1423207ad67f2f984f2d46ba9534194c344a051117c1e541f. 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 5 File information Comments

SHA256 hash: d83d5378f1bb37d1423207ad67f2f984f2d46ba9534194c344a051117c1e541f
SHA3-384 hash: 4f7fffee4da125d9f543a2a63f3877fb82ee1b9349e6525ee57e524408b068ab925e20cf5ac17545d89eaae6d05dbc15
SHA1 hash: 25b92fa53392d8541c2213769fac25b7ecbc88f1
MD5 hash: a32536810939d2264c9030b8a1b12186
humanhash: illinois-delta-october-mississippi
File name:upd.msi
Download: download sample
Signature Latrodectus
File size:1'453'568 bytes
First seen:2024-03-22 16:11:57 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 24576:1hFxLNvYLSMvZCFlp8zBQSc0ZoCvqKwx0ECIgYmfLVYeBZr7AJ/MqYzXZ:1h1vYpW8zBQSc0ZnSKeZKumZr7Amqg
TLSH T1EF65C0227386C537C96E01303A2AD66B5579FDB74B3140DBA3C8292E9EB44C16739F93
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 pr0xylife
Tags:Latrodectus msi

Intelligence


File Origin
# of uploads :
1
# of downloads :
146
Origin country :
RU RU
Vendor Threat Intelligence
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
CAB fingerprint installer lolbin packed remote shell32
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:
n/a
Detection:
malicious
Classification:
evad
Score:
56 / 100
Signature
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for dropped file
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1414158 Sample: upd.msi Startdate: 22/03/2024 Architecture: WINDOWS Score: 56 45 titnovacrion.top 2->45 49 Machine Learning detection for dropped file 2->49 7 msiexec.exe 9 2->7         started        10 msiexec.exe 15 38 2->10         started        13 rundll32.exe 2 2->13         started        15 rundll32.exe 2->15         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\MSI6811.tmp, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\MSI67F1.tmp, PE32 7->29 dropped 43 4 other malicious files 7->43 dropped 31 C:\Windows\Installer\MSI6B1C.tmp, PE32 10->31 dropped 33 C:\Windows\Installer\MSI6A01.tmp, PE32 10->33 dropped 35 C:\Windows\Installer\MSI6964.tmp, PE32 10->35 dropped 37 C:\Users\user\AppData\Local\besr\cr2.dll, PE32+ 10->37 dropped 53 Drops executables to the windows directory (C:\Windows) and starts them 10->53 17 MSI6B1C.tmp 10->17         started        19 msiexec.exe 10->19         started        21 msiexec.exe 10->21         started        39 C:\Users\user\AppData\...\Update_1ad0cd39.dll, PE32+ 13->39 dropped 41 :wtfbbq (copy), PE32+ 13->41 dropped 23 rundll32.exe 12 13->23         started        signatures6 process7 dnsIp8 47 titnovacrion.top 172.67.143.1, 443, 49708 CLOUDFLARENETUS United States 23->47 51 System process connects to network (likely due to code injection or exploit) 23->51 signatures9
Verdict:
malicious
Result
Malware family:
latrodectus
Score:
  10/10
Tags:
family:latrodectus loader
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://titnovacrion.top/live/
https://grunzalom.fun/live/
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_OLE_file_magic_number
Author:Didier Stevens (https://DidierStevens.com)
Rule name:suspicious_msi_file
Author:Johnk3r
Description:Detects common strings, DLL and API in Banker_BR

File information


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

Comments