MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fbff49100ec0523290c80ae279c0202540c1f5e939e39c571cfc09e46bc012b0. 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



AZORult


Vendor detections: 9


Maldoc score: 15


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: fbff49100ec0523290c80ae279c0202540c1f5e939e39c571cfc09e46bc012b0
SHA3-384 hash: 232a24454a6e07605ba3a68606c6afe5431fc05869488be5b183e0133d09905b1648d4cf2a04574a5881e61598ef4f2c
SHA1 hash: bc0f6809993f02457a873a6306caded55382745c
MD5 hash: 98c1aa48f8b9ba8eacfeeef180ad7ba1
humanhash: whiskey-aspen-mirror-alpha
File name:14035151501.xlam
Download: download sample
Signature AZORult
File size:20'488 bytes
First seen:2021-08-10 08:31:15 UTC
Last seen:2021-08-10 09:12:39 UTC
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 384:AKlLphZt2uedkiz0CM/ifi4l7Q2hGFF5gh3QITMaTA2:AKlFhZk5SiACsifNJhG352gIg32
TLSH T1D692CF1EA7C728B1C332AD3D88C841B6B51075895252C7AE4C08723EE786BCB174F1DA
Reporter lowmal3
Tags:AZORult xlsx

Office OLE Information


This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 15
OLE dump

MalwareBazaar was able to identify 12 sections in this file using oledump:

Section IDSection sizeSection name
A1453 bytesPROJECT
A277 bytesPROJECTwm
A3991 bytesVBA/Sheet1
A42311 bytesVBA/ThisWorkbook
A53751 bytesVBA/_VBA_PROJECT
A61847 bytesVBA/__SRP_0
A7192 bytesVBA/__SRP_1
A8439 bytesVBA/__SRP_2
A9484 bytesVBA/__SRP_3
A10562 bytesVBA/dir
A1112251 bytesVBA/eehl
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecworkbook_openRuns when the Excel Workbook is opened
SuspiciousshellMay run an executable file or a system command
SuspiciousWSCript.shellMay run an executable file or a system command
SuspiciousRunMay run an executable file or a system command
SuspiciousCreateObjectMay create an OLE object
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
2
# of downloads :
560
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
14035151501.xlam
Verdict:
No threats detected
Analysis date:
2021-08-10 08:43:02 UTC
Tags:
macros macros-on-open

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
Sending a UDP request
Transferring files using the Background Intelligent Transfer Service (BITS)
Connection attempt
Sending an HTTP GET request
Creating a file in the %temp% directory
Enabling the 'hidden' option for files in the %temp% directory
Moving a file to the %temp% directory
Creating a process from a recently created file
Creating a file
Sending an HTTP POST request
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Running batch commands by exploiting the app vulnerability
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Azorult
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Obfuscated command line found
PowerShell case anomaly found
Sigma detected: Microsoft Office Product Spawning Windows Shell
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Very long command line found
Yara detected AntiVM3
Yara detected Azorult
Yara detected Azorult Info Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 462440 Sample: 14035151501.xlam Startdate: 10/08/2021 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 13 other signatures 2->53 11 EXCEL.EXE 30 12 2->11         started        process3 file4 41 C:\Users\user\Desktop\~$14035151501.xlam, data 11->41 dropped 67 Obfuscated command line found 11->67 69 Very long command line found 11->69 15 cmd.exe 11->15         started        signatures5 process6 signatures7 71 Very long command line found 15->71 73 Encrypted powershell cmdline option found 15->73 75 PowerShell case anomaly found 15->75 18 powershell.exe 6 15->18         started        process8 process9 20 do.exe 18->20         started        dnsIp10 43 www.google.com 142.250.185.196, 443, 49168 GOOGLEUS United States 20->43 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->55 57 Injects a PE file into a foreign processes 20->57 24 do.exe 20->24         started        signatures11 process12 dnsIp13 45 37.0.10.102, 49170, 49171, 80 WKD-ASIE Netherlands 24->45 33 C:\Users\user\AppData\...\vcruntime140.dll, PE32 24->33 dropped 35 C:\Users\user\AppData\Local\...\ucrtbase.dll, PE32 24->35 dropped 37 C:\Users\user\AppData\Local\...\softokn3.dll, PE32 24->37 dropped 39 45 other files (none is malicious) 24->39 dropped 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->59 61 Tries to steal Instant Messenger accounts or passwords 24->61 63 Tries to steal Mail credentials (via file access) 24->63 65 2 other signatures 24->65 29 cmd.exe 24->29         started        file14 signatures15 process16 process17 31 timeout.exe 29->31         started       
Threat name:
Script-Macro.Trojan.Amphitryon
Status:
Malicious
First seen:
2021-08-10 07:23:36 UTC
AV detection:
8 of 46 (17.39%)
Threat level:
  5/5
Result
Malware family:
azorult
Score:
  10/10
Tags:
family:azorult infostealer macro spyware stealer suricata trojan
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Reads local data of messenger clients
Downloads MZ/PE file
Azorult
Process spawned unexpected child process
suricata: ET MALWARE AZORult v3.3 Server Response M3
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M1
Malware Config
C2 Extraction:
http://37.0.10.102/rut/index.php
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

AZORult

Excel file xlsx fbff49100ec0523290c80ae279c0202540c1f5e939e39c571cfc09e46bc012b0

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments