MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a66e530ab4555b4c4fda082b05760c39e909df39aec5eb0620b53ad439be8e27. 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 2 File information Comments

SHA256 hash: a66e530ab4555b4c4fda082b05760c39e909df39aec5eb0620b53ad439be8e27
SHA3-384 hash: 6bf1dc7ed49f24ff00989705bec069bfe49243cf605d56be52239055812e0fa81a8fd6da121aa344392727991a1f7129
SHA1 hash: fafcdcf78e613a3d1ed77999fa57dcf353428066
MD5 hash: afcf3496498f6aeffb89810a7279040c
humanhash: island-virginia-magnesium-golf
File name:Invoice.exe
Download: download sample
Signature AgentTesla
File size:331'776 bytes
First seen:2020-09-30 08:04:43 UTC
Last seen:2020-09-30 12:27:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 92644df84cdbba7637462c128671f148 (3 x NanoCore, 2 x AgentTesla, 1 x Loki)
ssdeep 6144:2a29lB0NPQnqNPjo3e2c4+/DPRXuLbg2LUQIv8SqeeSpFQd11gXN:F6lB05BNMO44DALM2LUQVTe01+
Threatray 1'805 similar samples on MalwareBazaar
TLSH 2364232FA3356A72C0586F30DB53F60A997FB04FAE2562088E318E453BB75F705A4593
Reporter cocaman
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Changing the hosts file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Modifies the hosts file
Moves itself to temp directory
Multi AV Scanner detection for submitted file
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)
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 291495 Sample: Invoice.exe Startdate: 30/09/2020 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->34 36 Found malware configuration 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 5 other signatures 2->40 6 Invoice.exe 2->6         started        9 NewApp.exe 2->9         started        11 NewApp.exe 2->11         started        process3 signatures4 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->44 46 Maps a DLL or memory area into another process 6->46 13 Invoice.exe 17 5 6->13         started        48 Machine Learning detection for dropped file 9->48 50 Contains functionality to detect sleep reduction / modifications 9->50 18 NewApp.exe 2 9->18         started        20 NewApp.exe 2 11->20         started        process5 dnsIp6 28 kihanga.co.ke 192.81.249.45, 49739, 587 AS40676US United States 13->28 30 mail.kihanga.co.ke 13->30 32 3 other IPs or domains 13->32 22 C:\Users\user\AppData\Roaming\...22ewApp.exe, PE32 13->22 dropped 24 C:\Users\user\...24ewApp.exe:Zone.Identifier, ASCII 13->24 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->52 54 Moves itself to temp directory 13->54 56 Tries to steal Mail credentials (via file access) 13->56 58 4 other signatures 13->58 26 C:\Windows\System32\drivers\etc\hosts, ASCII 20->26 dropped file7 signatures8
Threat name:
Win32.Trojan.Skeeyah
Status:
Malicious
First seen:
2020-09-30 08:06:08 UTC
File Type:
PE (Exe)
Extracted files:
115
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx spyware keylogger trojan stealer family:agenttesla persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
UPX packed file
AgentTesla
Unpacked files
SH256 hash:
a66e530ab4555b4c4fda082b05760c39e909df39aec5eb0620b53ad439be8e27
MD5 hash:
afcf3496498f6aeffb89810a7279040c
SHA1 hash:
fafcdcf78e613a3d1ed77999fa57dcf353428066
SH256 hash:
755011742c4d14fbb96a483c16af935ec4743a2172e829ff51edd82734d1c86a
MD5 hash:
b375a9ed52761cd3f99fdabe48a00878
SHA1 hash:
05e3b2531138a370e02b155cee07fcc17f98a615
SH256 hash:
25c0e31c18176be230f0400c1ce6ddc4836a38bc3d4ea7354d2458a7b482321d
MD5 hash:
4a8f2e35ef69d52bc2872b75084e966f
SHA1 hash:
e1542273121f6c507ed303e778a3a8303c684560
SH256 hash:
bc0e8bf7d5480ebd38b6406eed1277ae648559f51cbd43caf98d4ad8c6099775
MD5 hash:
f090f4c19cc34d6492ca06361b9d16e6
SHA1 hash:
744a6c56bfe9ebfc2e3e3c7734acf13c290f11f6
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:suspicious_packer_section
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/

File information


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

Malspam

AgentTesla

Executable exe a66e530ab4555b4c4fda082b05760c39e909df39aec5eb0620b53ad439be8e27

(this sample)

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