MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59a73013bce1c692f51f7657cf92e74df28cd4b3cc998bb752aa0b7eb48de7c1. 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: 59a73013bce1c692f51f7657cf92e74df28cd4b3cc998bb752aa0b7eb48de7c1
SHA3-384 hash: e9ca0cdebf897174bc216a28adbe6abc67a9f07bc5f48403c462391cbc059cc5afa97d1a17fdcff655e92e0065872f18
SHA1 hash: 7f36dabe47c32ed72e99d450fc45c51a2cf91d4b
MD5 hash: eff9d75933fdd05cbde2d2177ca3d73a
humanhash: steak-eighteen-kentucky-montana
File name:Payment_Advice.exe
Download: download sample
Signature AgentTesla
File size:595'456 bytes
First seen:2021-03-08 13:07:42 UTC
Last seen:2021-03-10 00:11:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:mfamHGSCmN1mK8mFmBmQ6++SY8Rp10LvNIYijRQ43/OzC6gaesOsvqFiqp3VTEP:a8Rp10LlID32zCJaeevqfp3d6
Threatray 3'065 similar samples on MalwareBazaar
TLSH 80C4056311FC25E3EA980BB81527924A0F657F7A6867DA0C097138FC26BDF9C50D3D92
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
4
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment_Advice.exe
Verdict:
Malicious activity
Analysis date:
2021-03-08 13:10:04 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
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
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
Multi AV Scanner detection for dropped file
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)
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 364560 Sample: Payment_Advice.exe Startdate: 08/03/2021 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 8 other signatures 2->54 7 Payment_Advice.exe 6 2->7         started        11 ppptOL.exe 2 2->11         started        13 ppptOL.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\...\XZbdxDhflv.exe, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\...\tmp11FD.tmp, XML 7->34 dropped 36 C:\Users\user\...\Payment_Advice.exe.log, ASCII 7->36 dropped 56 Writes to foreign memory regions 7->56 58 Injects a PE file into a foreign processes 7->58 15 RegSvcs.exe 2 4 7->15         started        20 schtasks.exe 1 7->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        signatures5 process6 dnsIp7 38 webmail.mdist.us 192.185.226.148, 49763, 587 UNIFIEDLAYER-AS-1US United States 15->38 28 C:\Users\user\AppData\Roaming\...\ppptOL.exe, PE32 15->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 15->30 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->42 44 Tries to steal Mail credentials (via file access) 15->44 46 5 other signatures 15->46 26 conhost.exe 20->26         started        file8 signatures9 process10
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-03-07 17:57:22 UTC
AV detection:
30 of 46 (65.22%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
e8ecb31dbfc106a4c10e1f494c700fa160fc5c97c644c787e3faea24ad43ffa9
MD5 hash:
b2cbbf77be28a55b0d9b44ec16d74a14
SHA1 hash:
f5dcb7220ac33d19f2c095717c0ef89d936d2a00
SH256 hash:
f8b5b51efedb3e87493ac2439473564603cc3059d57956f209a7310e311a1027
MD5 hash:
d66f89bf838fb52ed59d311a99aea214
SHA1 hash:
342525c4aabbb92abf51459081d34ed0f1cdc965
SH256 hash:
99d7822750fe2badda1b2fd318f92b247dc7ed236a9e2f13755fba75860ef24f
MD5 hash:
bc84fa22b8644e28687151087c40f505
SHA1 hash:
138ccc1d8464e5135ea858db28b1d4582583dec2
SH256 hash:
59a73013bce1c692f51f7657cf92e74df28cd4b3cc998bb752aa0b7eb48de7c1
MD5 hash:
eff9d75933fdd05cbde2d2177ca3d73a
SHA1 hash:
7f36dabe47c32ed72e99d450fc45c51a2cf91d4b
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:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Malspam

AgentTesla

Executable exe 59a73013bce1c692f51f7657cf92e74df28cd4b3cc998bb752aa0b7eb48de7c1

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

Comments