MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 173f0bd241e73d379ce82313d26bf465ce26e047ce822d1a16e7d0ad0049966a. 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: 13
Maldoc score: 11
| SHA256 hash: | 173f0bd241e73d379ce82313d26bf465ce26e047ce822d1a16e7d0ad0049966a |
|---|---|
| SHA3-384 hash: | ea1674d4d8676b808203c7bb1a429a7f536de497967cddee4d7f3f301de7ae34283cc799b6da1a56fcc31e5452e86044 |
| SHA1 hash: | b1bc20f8e5eb56a36979d76a5dbb9f3a44619996 |
| MD5 hash: | 27e1472a34aa41ede7a05b114cb12dd2 |
| humanhash: | high-juliet-don-echo |
| File name: | IMG_8977390.xlam |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 9'526 bytes |
| First seen: | 2023-10-02 16:37:05 UTC |
| Last seen: | Never |
| File type: |  xlsx |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 192:AexlHADlc1kFDMmQxizT3W7+cCMvi919pIAHO:AKlHx1gFQITMwMs1g5 |
| TLSH | T1D2125D4DC6E1B9A4C325FA3DC88449A2F0543888E6C2D6AE5C14F6DF3781287538F2DB |
| TrID | 50.4% (.XLSM) Excel Microsoft Office Open XML Format document (with Macro) (57500/1/12) 29.8% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7) 15.3% (.ZIP) Open Packaging Conventions container (17500/1/4) 3.5% (.ZIP) ZIP compressed archive (4000/1) 0.8% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1) |
| Reporter |  abuse_ch |
| Tags: | AgentTesla xlam 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: 11 |
OLE dump
MalwareBazaar was able to identify 7 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 474 bytes | PROJECT |
| A2 | 62 bytes | PROJECTwm |
| A3 | 169 bytes | VBA/Sheet1 |
| A4 | 690 bytes | VBA/ThisWorkbook |
| A5 | 7 bytes | VBA/_VBA_PROJECT |
| A6 | 209 bytes | VBA/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:
| Type | Keyword | Description |
|---|---|---|
| AutoExec | Workbook_Open | Runs when the Excel Workbook is opened |
| IOC | 95.164.22.183 | IPv4 address |
| IOC | IMG_8977390.exe | Executable file name |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | WScript.Shell | May run an executable file or a system command |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | Exec | May run an executable file or a system |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
292
Origin country :
NLVendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Sending an HTTP GET request
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Unauthorized injection to a recently created process
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Payload URLs
URL
File name
95.164.22.183
ThisWorkbook
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Verdict:
Malicious
Labled as:
Trojan/MSOffice.Obfuse
Label:
Malicious
Suspicious Score:
8.7/10
Score Malicious:
87%
Score Benign:
13%
Result
Verdict:
MALICIOUS
Link:
Details
Chunked Suspicious Strings
Detected seemingly chunked sensitive strings. High likely hood of obfuscated malintent.
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 Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Document contains an embedded VBA macro with suspicious strings
Document embeds suspicious OLE2 link
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: MSBuild connects to smtp port
Suspicious powershell command line found
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Threat name:
Document-Office.Trojan.Heuristic
Status:
Malicious
First seen:
2023-10-02 00:24:37 UTC
File Type:
Document
Extracted files:
18
AV detection:
7 of 23 (30.43%)
Threat level:
2/5
Detection(s):
Suspicious file
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla collection keylogger macro persistence spyware stealer trojan
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 FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Executes dropped EXE
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Process spawned unexpected child process
Malware family:
AgentTesla.v4
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | office_document_vba |
|---|---|
| Author: | Jean-Philippe Teissier / @Jipe_ |
| Description: | Office document with embedded VBA |
| Reference: | https://github.com/jipegit/ |
| Rule name: | vbaproject_bin |
|---|---|
| Author: | CD_R0M_ |
| Description: | {76 62 61 50 72 6f 6a 65 63 74 2e 62 69 6e} is hex for vbaproject.bin. Macros are often used by threat actors. Work in progress - Ran out of time |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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