MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0
SHA3-384 hash: 391a8243986b34afa2b21e63a8278cf45a88faef4cb910a4cc44ee793ef85fdaa4e7e7cddc18e35d30a1e6339a870c4a
SHA1 hash: 2584723822b6f192d837d3616b9f82f84d626d2d
MD5 hash: 6a0bc469af442ab4df602ad5af219b02
humanhash: angel-maine-arizona-quebec
File name:microbiolagicalthingshappeneingaroundtheworldforentireprocesstostartfromthefirsttonowforev(1).doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:63'305 bytes
First seen:2024-01-18 01:05:29 UTC
Last seen:Never
File type:Word file doc
MIME type:text/plain
ssdeep 1536:cXmA9Ug/5V5VYVtdhj83rE/gDV+6NgvYF:cXmiMVlv0gvQ
TLSH T18753496AE74F0965DE95E5BB025D478E0AFCF339328500D479BC92383B7D80E4A6297C
Reporter adm1n_usa32
Tags:AgentTesla CVE-2017-11882 doc rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
373
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
FPG2401001.xls
Verdict:
Malicious activity
Analysis date:
2024-01-17 12:40:26 UTC
Tags:
maldoc opendir loader exploit cve-2017-11882 stealer agenttesla
Link:
https://app.any.run/tasks/2617ad46-0406-4b13-8212-7c438efcd5dd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
89%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/65a8797c94d1aebfb2a5296c/reports/5d727561-b631-446e-a745-2bbf64abeba0/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1376451
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Initial sample is an obfuscated RTF file
Injects a PE file into a foreign processes
Installs a global keyboard hook
Installs new ROOT certificates
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 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)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1376451 Sample: microbiolagicalthingshappen... Startdate: 18/01/2024 Architecture: WINDOWS Score: 100 42 Initial sample is an obfuscated RTF file 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 14 other signatures 2->48 8 WINWORD.EXE 336 13 2->8         started        process3 process4 10 EQNEDT32.EXE 12 8->10         started        15 EQNEDT32.EXE 8->15         started        dnsIp5 32 107.175.243.133, 49160, 80 AS-COLOCROSSINGUS United States 10->32 24 C:\Users\user\AppData\Roaming\conhost.exe, PE32 10->24 dropped 26 C:\Users\user\AppData\...\conhost[1].exe, PE32 10->26 dropped 58 Office equation editor establishes network connection 10->58 60 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->60 17 conhost.exe 2 10->17         started        file6 signatures7 process8 signatures9 34 Multi AV Scanner detection for dropped file 17->34 36 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->36 38 Machine Learning detection for dropped file 17->38 40 2 other signatures 17->40 20 conhost.exe 12 2 17->20         started        process10 dnsIp11 28 api4.ipify.org 173.231.16.75, 443, 49162 WEBNXUS United States 20->28 30 api.ipify.org 20->30 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->50 52 Installs new ROOT certificates 20->52 54 Tries to steal Mail credentials (via file / registry access) 20->54 56 2 other signatures 20->56 signatures12
Score:
99%
Verdict:
Malware
File Type:
ASCII
Link:
https://malprob.io/report/0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-01-17 01:19:53 UTC
File Type:
Document
Extracted files:
6
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bjk3mf6x3kgxwuhqrafwpgksb3mjlqw3qfkn2vh4xzqwdvgsghaa._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/240118-bf3pfsaea5/
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 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
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0a55b617d7da/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0

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_EXPLOIT_CVE_2017_11882_1
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents potentially exploiting CVE-2017-11882
Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
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
Create hunting rule
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
Rule name:SUSP_RTF_Header_Anomaly_RID2F7F
Create hunting rule
Author:Florian Roth
Description:Detects malformed RTF header often used to trick mechanisms that check for a full RTF header
Reference:https://twitter.com/ItsReallyNick/status/975705759618158593

File information

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

Web download

AgentTesla

Word file doc 0a55b617d7da8d7b50f0880b6799520ed895c2db8154dd54fcbe6161d4d231c0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2749170/
  
Delivery method
Distributed via web download

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