MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca20e6d6fc14a5a1b07747c95d04fa6fa593fbeda1be5b0eb84495d60fc59e01. 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: 5


Maldoc score: 9


Intelligence 5 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca20e6d6fc14a5a1b07747c95d04fa6fa593fbeda1be5b0eb84495d60fc59e01
SHA3-384 hash: fd4f21217bbcf2c57f805f77c46f6a9e6c88c5ab41b3cd18eeb2dd92f5f1a593cbed4b094a42728a3f84684d7f9e4e03
SHA1 hash: c272da492857144f88502ccfe20650e3667d01c7
MD5 hash: f9631af188613c35817eef9aec6fb587
humanhash: early-maryland-jig-vegan
File name:Tender inquire.xlsm
Download: download sample
Signature AgentTesla
Create hunting rule
File size:419'765 bytes
First seen:2020-11-07 08:03:36 UTC
Last seen:2020-11-07 09:41:17 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 12288:N49w8fyunGthwu8kxPthZugvq4jzjSGUuvs:N49b7AhFxPthZnvL3tk
TLSH 5E94232FD298BE9FC6F3EA7D9D448AE7131253CE339078B9685C88880A5F12EC171D55
Reporter abuse_ch
Tags:AgentTesla xlsm


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: lo.logicphase.live
Sending IP: 45.95.170.59
From: ALFESANY AHMED <info@branddepot.live>
Subject: Tender Quotation
Attachment: Tender inquire.xlsm

AgentTesla payload URL:
http://cp87128.tmweb.ru/tender.exe

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 11 sections in this file using oledump:

Section IDSection sizeSection name
A12 bytesPROJECT
A22 bytesPROJECTwm
A30 bytesVBA/Sheet1
A48 bytesVBA/ThisWorkbook
A53 bytesVBA/_VBA_PROJECT
A62 bytesVBA/__SRP_0
A72 bytesVBA/__SRP_1
A82 bytesVBA/__SRP_2
A96 bytesVBA/__SRP_3
A105 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
SuspiciousshellMay run an executable file or a system command
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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 :
2
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
TwinWave.EvilDoc.AutoTriggerEvilMrFantasyM3.20200721.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file in the %temp% subdirectories
Creating a file
Running batch commands
Launching a process
Unauthorized injection to a system process
Forced shutdown of a system process
Running batch commands by exploiting the app vulnerability
Launching a file downloaded from the Internet
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/523696
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (process start blacklist hit)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Powershell download file and shellexecute
Suspicious powershell command line found
Tries to download and execute files (via powershell)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 310943 Sample: Tender inquire.xlsm Startdate: 07/11/2020 Architecture: WINDOWS Score: 100 55 Antivirus detection for dropped file 2->55 57 Multi AV Scanner detection for dropped file 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 13 other signatures 2->61 11 EXCEL.EXE 57 14 2->11         started        process3 file4 51 C:\Users\user\Desktop\~$Tender inquire.xlsm, data 11->51 dropped 77 Document exploit detected (process start blacklist hit) 11->77 15 cmd.exe 11->15         started        signatures5 process6 signatures7 79 Suspicious powershell command line found 15->79 81 Tries to download and execute files (via powershell) 15->81 18 powershell.exe 12 7 15->18         started        process8 dnsIp9 53 cp87128.tmweb.ru 185.114.245.201, 49165, 80 TIMEWEB-ASRU Russian Federation 18->53 45 C:\Users\user\AppData\Roaming\tender.exe, PE32 18->45 dropped 65 Powershell drops PE file 18->65 23 tender.exe 3 18->23         started        file10 signatures11 process12 file13 47 C:\Users\user\AppData\Local\Temp\...\file.exe, PE32 23->47 dropped 49 C:\...\7fca8aa0ef6341bf8788df7f5f6d2f2a.xml, XML 23->49 dropped 67 Antivirus detection for dropped file 23->67 69 Multi AV Scanner detection for dropped file 23->69 71 Machine Learning detection for dropped file 23->71 73 Maps a DLL or memory area into another process 23->73 27 tender.exe 1 23->27         started        30 cmd.exe 23->30         started        32 MSBuild.exe 23->32         started        signatures14 process15 signatures16 75 Maps a DLL or memory area into another process 27->75 34 tender.exe 1 27->34         started        37 MSBuild.exe 27->37         started        39 schtasks.exe 30->39         started        process17 signatures18 63 Maps a DLL or memory area into another process 34->63 41 tender.exe 34->41         started        43 MSBuild.exe 34->43         started        process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca20e6d6fc14a5a1b07747c95d04fa6fa593fbeda1be5b0eb84495d60fc59e01/
Threat name:
Script-Macro.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2020-11-06 05:03:25 UTC
File Type:
Document
Extracted files:
26
AV detection:
17 of 29 (58.62%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ziqonvx4css2dmdxi7ev2bh2n6szh67nug7fwdvyisk5md6ftyaq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201107-krr6ra6xpj/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Office loads VBA resources, possible macro or embedded object present
Loads dropped DLL
Blacklisted process makes network request
Executes dropped EXE
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://cp87128.tmweb.ru/tender.exe
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.

Malspam

AgentTesla

Excel file xlsm ca20e6d6fc14a5a1b07747c95d04fa6fa593fbeda1be5b0eb84495d60fc59e01

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/795557/
  
Delivery method
Distributed via e-mail attachment

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