MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1c616976e917d54778f587a2550ee5568a72b661d5f04e68d194ce998864d84. 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



AgentTesla


Vendor detections: 11


Maldoc score: 9


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: d1c616976e917d54778f587a2550ee5568a72b661d5f04e68d194ce998864d84
SHA3-384 hash: 6a66c1ded91d6ea05211200b403b293d5d22708173e811b92c7611c3a4cfac8da8cb86ffdf46e8c7264beda275aa40c3
SHA1 hash: 12164c37b4d31a728f8af96e3e8ca4314068d20b
MD5 hash: 7e16f1c9d7216db83080d42fb8b01a10
humanhash: equal-berlin-carpet-undress
File name:MV TBN.xlsm
Download: download sample
Signature AgentTesla
File size:27'950 bytes
First seen:2022-03-25 18:15:43 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 768:nYZosZXp7RHizQYeHeCBcaC34jImh7LKMis4nK:YWseHezsKtis4nK
TLSH T1F9C2C0E45F521A65C78A483B0A2789412A5030D7CBD2FA524F686A7C54C3FC536AFF8F
Reporter abuse_ch
Tags:AgentTesla xlsm

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: 9
OLE dump

MalwareBazaar was able to identify 8 sections in this file using oledump:

Section IDSection sizeSection name
A1535 bytesPROJECT
A289 bytesPROJECTwm
A3169 bytesVBA/Sheet1
A4356 bytesVBA/ThisWorkbook
A5171 bytesVBA/Workbook
A67 bytesVBA/_VBA_PROJECT
A7228 bytesVBA/dir
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
IOC18.179.111.240IPv4 address
IOCcertutil.exeExecutable file name
IOCscan08710203065.exeExecutable file name
IOCLqdzvm.exeExecutable file name
SuspiciousShellMay run an executable file or a system command
SuspiciousvbHideMay run an executable file or a system command
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 :
1
# of downloads :
361
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Sending an HTTP GET request
Creating a file
Creating a process from a recently created file
Unauthorized injection to a recently created process
Running batch commands by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Payload URLs
URL
File name
http://18.179.111.240/xr0/loader/uploads/scan08710203065.exe
ThisWorkbook
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
certutil certutil.exe cmd macros macros-on-open
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
InQuest Machine Learning
An InQuest machine-learning model classified this macro as potentially malicious.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Creates multiple autostart registry keys
Document contains an embedded VBA macro which may execute processes
Document exploit detected (process start blacklist hit)
Drops PE files to the document folder of the user
Encrypted powershell cmdline option found
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious Certutil Command
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Windows Shell File Write to Suspicious Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 597350 Sample: MV TBN.xlsm Startdate: 25/03/2022 Architecture: WINDOWS Score: 100 63 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Antivirus detection for URL or domain 2->67 69 16 other signatures 2->69 9 EXCEL.EXE 53 14 2->9         started        12 cTlNs.exe 2->12         started        15 chrom.exe 12 3 2->15         started        17 chrom.exe 2->17         started        process3 file4 47 C:\Users\user\Desktop\~$MV TBN.xlsm, data 9->47 dropped 19 cmd.exe 9->19         started        91 Multi AV Scanner detection for dropped file 12->91 93 Encrypted powershell cmdline option found 12->93 21 powershell.exe 12->21         started        23 powershell.exe 15->23         started        signatures5 process6 process7 25 Lqdzvm.exe.exe 13 5 19->25         started        29 certutil.exe 14 19->29         started        dnsIp8 49 C:\Users\user\AppData\Roaming\...\chrom.exe, PE32 25->49 dropped 79 Multi AV Scanner detection for dropped file 25->79 81 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 25->81 83 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 25->83 89 3 other signatures 25->89 32 Lqdzvm.exe.exe 1 12 25->32         started        37 cmd.exe 25->37         started        39 powershell.exe 6 25->39         started        41 Lqdzvm.exe.exe 25->41         started        61 18.179.111.240, 49165, 49166, 49167 AMAZON-02US United States 29->61 51 C:\Users\user\Documents\Lqdzvm.exe.exe, PE32 29->51 dropped 53 C:\Users\user\...\scan08710203065[1].exe, PE32 29->53 dropped 55 C:\Users\...\44EB5825C59C304E04EAF65567A01BD8, PE32 29->55 dropped 57 C:\Users\...\44EB5825C59C304E04EAF65567A01BD8, data 29->57 dropped 85 System process connects to network (likely due to code injection or exploit) 29->85 87 Drops PE files to the document folder of the user 29->87 file9 signatures10 process11 dnsIp12 59 31.210.20.150, 49168, 49169, 49171 PLUSSERVER-ASN1DE Netherlands 32->59 45 C:\Users\user\AppData\Roaming\...\cTlNs.exe, PE32 32->45 dropped 71 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 32->71 73 Tries to steal Mail credentials (via file / registry access) 32->73 75 Creates multiple autostart registry keys 32->75 77 4 other signatures 32->77 43 timeout.exe 37->43         started        file13 signatures14 process15
Threat name:
Script-Macro.Trojan.Heuristic
Status:
Malicious
First seen:
2022-03-25 09:46:51 UTC
File Type:
Document
Extracted files:
26
AV detection:
12 of 25 (48.00%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Loads dropped DLL
Downloads MZ/PE file
Executes dropped EXE
Process spawned unexpected child process
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.

Comments