MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8fa10d686fb89d62493a8d1b0f59caefc2da5fdb327b6a65c1ddd65f4c10944. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8fa10d686fb89d62493a8d1b0f59caefc2da5fdb327b6a65c1ddd65f4c10944
SHA3-384 hash: 3f40ce081dd4287143baae38856b79b4b3ea153834b62299a6058fa819467425b7c3204f5c7dd0bb7f0fe64492e315a2
SHA1 hash: 23ceca88d35125b79880a06ea11b095fc4d5c0cb
MD5 hash: 9bfcc68a44a2cf6c3a27c5749f360e32
humanhash: single-river-august-maine
File name:TKL Steel Quotation.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:372'711 bytes
First seen:2021-02-12 07:03:28 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 6144:8kxOpV5gzKOcJi3TquolZ2agkChESIkpwXUBnsbu/KNtvvmhimPRepxsU3/Dal7D:8AM0zKOcwjqblZ2ag7qXUBnBiNEhnJg6
TLSH 9584BFB876047DE6266F576BCE96ACDD03B6276399CBA4CC40687BC305A3375FE02805
Reporter abuse_ch
Tags:AgentTesla doc


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: llsa736-a17.servidoresdns.net
Sending IP: 82.223.190.27
From: Aron Tom Alex <a.urizar@aipalaluminio.net>
Subject: ENQURY FOR ANCHOR BOLT
Attachment: TKL Steel Quotation.doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TKL Steel Quotation.doc
Verdict:
No threats detected
Analysis date:
2021-02-12 07:05:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/252e855b-4bc3-4f20-a53f-3e6badaaf9bf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/d8fa10d686fb89d62493a8d1b0f59caefc2da5fdb327b6a65c1ddd65f4c10944/results/dashboard
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/606500
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
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: Droppers Exploiting CVE-2017-11882
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Scheduled temp file as task from temp location
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 steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 352280 Sample: TKL Steel Quotation.doc Startdate: 12/02/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Sigma detected: Scheduled temp file as task from temp location 2->38 40 Yara detected AgentTesla 2->40 42 8 other signatures 2->42 7 EQNEDT32.EXE 13 2->7         started        12 WINWORD.EXE 291 25 2->12         started        process3 dnsIp4 34 criticnavy.com 46.17.45.15, 443, 49165 ASBAXETRU Russian Federation 7->34 24 C:\Users\user\...\poiuytrewasdvfghjk.exe, PE32 7->24 dropped 26 C:\Users\user\...\ZNNn9Ivam1pu7DW[1].exe, PE32 7->26 dropped 52 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->52 14 poiuytrewasdvfghjk.exe 3 7->14         started        file5 signatures6 process7 file8 28 C:\Users\user\AppData\...\xnBFikzwKsV.exe, PE32 14->28 dropped 30 C:\Users\user\AppData\Local\...\tmp734D.tmp, XML 14->30 dropped 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->54 56 Machine Learning detection for dropped file 14->56 58 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->58 60 2 other signatures 14->60 18 poiuytrewasdvfghjk.exe 2 14->18         started        22 schtasks.exe 14->22         started        signatures9 process10 dnsIp11 32 mail.privateemail.com 198.54.122.60, 49167, 49168, 49169 NAMECHEAP-NETUS United States 18->32 44 Tries to steal Mail credentials (via file access) 18->44 46 Tries to harvest and steal ftp login credentials 18->46 48 Tries to harvest and steal browser information (history, passwords, etc) 18->48 50 Installs a global keyboard hook 18->50 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d8fa10d686fb89d62493a8d1b0f59caefc2da5fdb327b6a65c1ddd65f4c10944/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2021-02-12 10:56:27 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3d5bbvug7oe5mjetvdi3b5m4v36c3jp5wmt3njs4dxowl5gbbfca._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/210212-4k9fcqhaq6/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Blocklisted process makes network request
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
Link:
https://yomi.yoroi.company/submissions/d8fa10d686fb89d62493a8d1b0f59caefc2da5fdb327b6a65c1ddd65f4c10944

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_RTF_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or 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:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

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

Malspam

AgentTesla

Word file doc d8fa10d686fb89d62493a8d1b0f59caefc2da5fdb327b6a65c1ddd65f4c10944

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments