MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b05e4eb783c9785bbd7d9453609d23379f5bab8d5e09e00b75b634146e8bdb76. 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


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: b05e4eb783c9785bbd7d9453609d23379f5bab8d5e09e00b75b634146e8bdb76
SHA3-384 hash: a5921ab57b50c0e051ce8135a1d05f551b16e2975ca01ec205af685861468cf55e6c426c69f4e9d0a1ee84915b50221d
SHA1 hash: 4e3533dd930401dd347be304a1b1a06167142955
MD5 hash: 3c4e00fc88c3aa9b96b4f1e0363550c7
humanhash: low-video-hot-papa
File name:SecuriteInfo.com.RTF.Obfuscated-gen.31773.16896
Download: download sample
Signature AgentTesla
File size:324'168 bytes
First seen:2024-01-16 14:24:19 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 3072:9wAlawAlUFFaNNH0JqQ/TVYvtCfh7k/sI3e0LNS0du:9wAYwAAyNlQ/TVYvtw70H3OAu
TLSH T16864572EE30B05199F95937A874B4E8A45BCB62EF38540B134AC537837EDC3E56225BC
Reporter SecuriteInfoCom
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence


File Origin
# of uploads :
1
# of downloads :
159
Origin country :
FR FR
Vendor Threat Intelligence
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
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)
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
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)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1375392 Sample: SecuriteInfo.com.RTF.Obfusc... Startdate: 16/01/2024 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 19 other signatures 2->47 8 WINWORD.EXE 291 15 2->8         started        process3 file4 23 ~WRF{39AF81D1-9307...9-5E3D47A040A3}.tmp, Composite 8->23 dropped 11 EQNEDT32.EXE 11 8->11         started        process5 dnsIp6 31 civil.topendpower.top 104.21.8.130, 49162, 80 CLOUDFLARENETUS United States 11->31 25 C:\Users\user\AppData\...\alpha28464.exe, PE32 11->25 dropped 27 C:\Users\user\AppData\...\alphazx[1].exe, PE32 11->27 dropped 55 Office equation editor establishes network connection 11->55 57 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 11->57 16 alpha28464.exe 2 11->16         started        file7 signatures8 process9 signatures10 33 Multi AV Scanner detection for dropped file 16->33 35 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 16->35 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->37 39 4 other signatures 16->39 19 alpha28464.exe 12 2 16->19         started        process11 dnsIp12 29 ip-api.com 208.95.112.1, 49164, 80 TUT-ASUS United States 19->29 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->49 51 Tries to steal Mail credentials (via file / registry access) 19->51 53 Tries to harvest and steal browser information (history, passwords, etc) 19->53 signatures13
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2024-01-16 11:31:59 UTC
File Type:
Document
Extracted files:
3
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
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:INDICATOR_RTF_MalVer_Objects
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information


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

Comments