MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8c1d84d4fd7b6bcf9972841e67d2c8c5190bfcd3da83a3ab32e95e47d53b028. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
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SHA256 hash: b8c1d84d4fd7b6bcf9972841e67d2c8c5190bfcd3da83a3ab32e95e47d53b028
SHA3-384 hash: 9fd714da27461b647651276b75c4a220f5812eeea67416a458cb50479a34cfc33b86ea246f52dd0af58bcdc2e5963de3
SHA1 hash: 6ae27248794d6d8ef58c675482b28cc7fb19283d
MD5 hash: 2942990a4be270434903f8e1dad31b94
humanhash: low-eighteen-chicken-harry
File name:BL Draft - DOC20393718923212.xlsx
Download: download sample
Signature AgentTesla
Create hunting rule
File size:719'872 bytes
First seen:2020-09-25 09:39:37 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 12288:euifn2hwOwziDwiphD9uHtbpb95NNjWpQLg0/3tvL1riVyVsaxYU1079oT0juVnQ:5qewjiMi7Ju/b2pQU0/3V1riVqsae66y
TLSH C1E42319FEC5AF93C26B40341A943A93181CFE18E79BDA5F021C3E947CBBB36E491525
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 Maersk xlsx


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: maersk.com
Sending IP: 81.174.12.6
From: "A.P. Moller - Maersk" <noreply@maersk.com>
Subject: RE : RE : URGENT!!! 2 x 20ft - SHIPPING DOC BL,SI,INV#462345 // MAERSK KLEVEN V.949E // CLGQOE191781 //
Attachment: BL Draft - DOC20393718923212.xlsx

AgentTesla payload URL:
http://149.202.110.58/ben12.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
PUA.Doc.Packed.EncryptedDoc-6563700-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Reading critical registry keys
Launching a service
Creating a file
Sending an HTTP GET request
Launching a file downloaded from the Internet
Stealing user critical data
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/474940
Signature
Found malware configuration
Maps a DLL or memory area into another process
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 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: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: RegAsm connects to smtp port
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 289929 Sample: BL Draft - DOC20393718923212.xlsx Startdate: 25/09/2020 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 9 other signatures 2->41 7 EQNEDT32.EXE 12 2->7         started        12 EXCEL.EXE 38 23 2->12         started        process3 dnsIp4 33 149.202.110.58, 49167, 80 OVHFR France 7->33 21 C:\Users\user\AppData\Roaming\vbc.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\Local\...\ben12[1].exe, PE32 7->23 dropped 51 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->51 14 vbc.exe 7->14         started        25 C:\...\~$BL Draft - DOC20393718923212.xlsx, data 12->25 dropped file5 signatures6 process7 signatures8 53 Multi AV Scanner detection for dropped file 14->53 55 Writes to foreign memory regions 14->55 57 Maps a DLL or memory area into another process 14->57 17 RegAsm.exe 6 14->17         started        process9 dnsIp10 27 smtp.yandex.ru 77.88.21.158, 49168, 587 YANDEXRU Russian Federation 17->27 29 repository.uzto.netdna-cdn.com 108.161.187.74, 49169, 80 HIGHWINDS2US United States 17->29 31 2 other IPs or domains 17->31 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->43 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->45 47 Tries to steal Mail credentials (via file access) 17->47 49 3 other signatures 17->49 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8c1d84d4fd7b6bcf9972841e67d2c8c5190bfcd3da83a3ab32e95e47d53b028/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-09-25 09:38:51 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xda5qtkp263lz6mxfba6m7jmrrizbp6nhwuduovtf2k6i7ktwaua._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla
Link:
https://tria.ge/reports/200925-bnsjkdrlr2/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Suspicious use of SetThreadContext
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
Uses the VBS compiler for execution
Blacklisted process makes network request
Executes dropped EXE
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Exploit
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b8c1d84d4fd7b6bcf9972841e67d2c8c5190bfcd3da83a3ab32e95e47d53b028

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:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples

File information

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

Malspam

AgentTesla

Excel file xlsx b8c1d84d4fd7b6bcf9972841e67d2c8c5190bfcd3da83a3ab32e95e47d53b028

(this sample)

AgentTesla

Executable exe 012ce9d03a7a1d40aff4df470e50884fc193dd3f4d483e6545f1123676828bac

  
URLhaus
https://urlhaus.abuse.ch/url/611610/
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 012ce9d03a7a1d40aff4df470e50884fc193dd3f4d483e6545f1123676828bac
  
Dropping
MD5 30619d87ec29a17cb5aae379b9a524ea

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