MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42559744a026afaece34c2e4175903ba2d286f269042603c26f488f43c2c0b9f. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: 42559744a026afaece34c2e4175903ba2d286f269042603c26f488f43c2c0b9f
SHA3-384 hash: 545339dc7a38b3e680f489b89dda806a440e37433a31050115f48090c750dbc6b954b9a22e510231edcde1a05269fcb9
SHA1 hash: a9903465efc2bf251e5078a0d9c98b1403c6dbfa
MD5 hash: 04474abc8f234f109e10f4a08ca1d2ee
humanhash: fifteen-comet-seven-colorado
File name:Invoice & packing list.exe
Download: download sample
Signature AgentTesla
File size:873'472 bytes
First seen:2020-08-13 06:36:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0aa3dcbdd0727cba5785897870b1d0ce (14 x AgentTesla, 6 x Loki, 3 x Formbook)
ssdeep 12288:skTCaGA3RukdYUSTkq31mZqB5ke5C5y3ptXfbvGmMKMZzQZ8ZSWabfa0Z:T0CEU+DTk0lp5zvGDKsQZIiLa0
Threatray 10'674 similar samples on MalwareBazaar
TLSH 02057C52BED1083ED0F7153D4F775EF49C29BDD22B24585A2BE8484F7E3924C282929E
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: pandalogqd.com
Sending IP: 185.222.57.80
From: Carole Zhang <doc.import@pandalogqd.com>
Subject: 回复: 回复: New //P/A MEDUN8484879 177UNGNGN83274A INVOICE & PACKING LIST
Attachment: Invoice Packing List.img (contains "Invoice & packing list.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Sending a UDP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265165 Sample: Invoice & packing list.exe Startdate: 14/08/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Detected unpacking (changes PE section rights) 2->37 39 Detected unpacking (overwrites its own PE header) 2->39 41 7 other signatures 2->41 7 Invoice & packing list.exe 2->7         started        10 wscript.exe 1 2->10         started        process3 signatures4 43 Writes to foreign memory regions 7->43 45 Allocates memory in foreign processes 7->45 47 Maps a DLL or memory area into another process 7->47 49 Queues an APC in another process (thread injection) 7->49 12 Invoice & packing list.exe 2 7->12         started        16 notepad.exe 1 7->16         started        18 Invoice & packing list.exe 7->18         started        20 Invoice & packing list.exe 10->20         started        process5 dnsIp6 31 hybridgroupco.com 167.114.220.88, 49731, 587 OVHFR Canada 12->31 33 mail.hybridgroupco.com 12->33 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->51 53 Tries to steal Mail credentials (via file access) 12->53 55 Tries to harvest and steal ftp login credentials 12->55 57 Tries to harvest and steal browser information (history, passwords, etc) 12->57 59 Drops VBS files to the startup folder 16->59 61 Delayed program exit found 16->61 63 Writes to foreign memory regions 20->63 65 Allocates memory in foreign processes 20->65 67 Maps a DLL or memory area into another process 20->67 22 notepad.exe 1 20->22         started        25 Invoice & packing list.exe 20->25         started        27 Invoice & packing list.exe 20->27         started        signatures7 process8 file9 29 C:\Users\user\AppData\Roaming\...\AppData.vbs, ASCII 22->29 dropped
Threat name:
Win32.Backdoor.NanoCore
Status:
Malicious
First seen:
2020-08-13 06:38:09 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
AgentTesla Payload
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:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information


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

Malspam

AgentTesla

Executable exe 42559744a026afaece34c2e4175903ba2d286f269042603c26f488f43c2c0b9f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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