MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7b266edf9abd1b58d82379aa2852e641022d390099cec092d4f94450a6116a1. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7b266edf9abd1b58d82379aa2852e641022d390099cec092d4f94450a6116a1
SHA3-384 hash: 5d8783557a7ce8501435eadaf6ad8aa3f5d44fd91bf9da412315afaff2a477350557d084e82bfa6e166da5519ea39ee7
SHA1 hash: 211210687bbd5f610e242bb136e8c5f3493f0341
MD5 hash: fb9066b91579ca47c29242a8669ad6c5
humanhash: oscar-south-alabama-kansas
File name:Payment_Advice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:483'840 bytes
First seen:2021-08-20 05:16:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:oGU6a9uC2ribjCx9eKeG77mkxp+Aqu1wXRzI:oJ6ad2+bc9pea7bp+ADw
Threatray 8'638 similar samples on MalwareBazaar
TLSH T1ABA402883715BA9FC55E8E37C9A62C20A671B477A70BD343788325DD594E7CE8E012E3
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment_Advice.exe
Verdict:
Malicious activity
Analysis date:
2021-08-20 05:17:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6b69f625-1ac2-4f74-a985-d6f84fad3a5c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/180853/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.4088.32058.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Unauthorized injection to a recently created process
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
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/31ca21e3-4db4-4106-b264-75ba3fe0f216
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/836224
Signature
.NET source code contains very large array initializations
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
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 468655 Sample: Payment_Advice.exe Startdate: 20/08/2021 Architecture: WINDOWS Score: 100 51 Found malware configuration 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 8 other signatures 2->57 7 Payment_Advice.exe 6 2->7         started        11 kprUEGC.exe 5 2->11         started        13 kprUEGC.exe 2 2->13         started        process3 file4 35 C:\Users\user\AppData\Roaming\rOrFodwRD.exe, PE32 7->35 dropped 37 C:\Users\user\AppData\Local\...\tmpA7B2.tmp, XML 7->37 dropped 39 C:\Users\user\...\Payment_Advice.exe.log, ASCII 7->39 dropped 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->59 61 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 7->63 15 Payment_Advice.exe 2 5 7->15         started        19 schtasks.exe 1 7->19         started        21 Payment_Advice.exe 7->21         started        65 Multi AV Scanner detection for dropped file 11->65 67 Machine Learning detection for dropped file 11->67 69 Injects a PE file into a foreign processes 11->69 23 schtasks.exe 1 11->23         started        25 kprUEGC.exe 2 11->25         started        27 kprUEGC.exe 11->27         started        29 kprUEGC.exe 11->29         started        signatures5 process6 file7 41 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->41 dropped 43 C:\Windows\System32\drivers\etc\hosts, ASCII 15->43 dropped 45 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->45 dropped 47 Modifies the hosts file 15->47 49 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->49 31 conhost.exe 19->31         started        33 conhost.exe 23->33         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a7b266edf9abd1b58d82379aa2852e641022d390099cec092d4f94450a6116a1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-20 03:41:04 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u6zgn3pzvpi3ldmcg6nkfbjomqicfu4qbgooycjnj6kekctbc2qq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
025520459a04813603425329129f22a3498902fe73138b567c4ceee9229c547b
AgentTesla
35e2bf6106a7af258db10d76a44aadd9ac5f2187fe46de6131129b94da9a05f0
AgentTesla
4d95a2a4536ef058cccd8ac846bd2dd906fcbcd87fe6579b9918632402d04def
AgentTesla
4f6fa9c79a519e7f23da7e9af07462772ac70e4ec05d973074cadb7faba03d0b
AgentTesla
686789301fea6358387eca5be159a65c666a6854e54df7b5a0f38f0e222abe88
AgentTesla
a3ed514949ec3a2bef161647cb6223a13db74b6d43bef963466fdd8104f2689c
AgentTesla
bf5d80e41502cbe3e4c6af87106406521d7dff65160a069bdc84f24a086f5381
AgentTesla
dbb86026ffeef97385daa7d9eecec9485611e33383fbdf90a5b91f8841ffa6e8
AgentTesla
+ 8'628 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210820-xjc1lfkmcj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
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
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
431d296be38699dd3043fdece4144f7dee0cdb6291157f6656f1207ba474957a
MD5 hash:
f9946aa6316892975d528a558ad90d2f
SHA1 hash:
798244db2ffbc6b28e100ede39559de24d63df61
Link:
https://www.unpac.me/results/e0146244-e563-4db0-a4f8-9e2b687a2087/
SH256 hash:
183e1832c9044af582b0eb6924a6888fb18ccf148b150860a102ca8e685adcde
MD5 hash:
c7cb4e18a436f95588dc02cc6ecc5e05
SHA1 hash:
419adf51fd614c6f1b2f16b19779fa91bbbb7bef
Link:
https://www.unpac.me/results/e0146244-e563-4db0-a4f8-9e2b687a2087/
SH256 hash:
9e3565cf0b031d1510e511c9d16db596467b39afb362e6bdc8e0f7e984cc5770
MD5 hash:
07187d273fddd7bf4bc5bac5157c37c3
SHA1 hash:
0231f50aaf5b73b2bfda9dba4662d7bf5f69ac37
Link:
https://www.unpac.me/results/e0146244-e563-4db0-a4f8-9e2b687a2087/
SH256 hash:
a7b266edf9abd1b58d82379aa2852e641022d390099cec092d4f94450a6116a1
MD5 hash:
fb9066b91579ca47c29242a8669ad6c5
SHA1 hash:
211210687bbd5f610e242bb136e8c5f3493f0341
Link:
https://www.unpac.me/results/e0146244-e563-4db0-a4f8-9e2b687a2087/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a7b266edf9abd1b58d82379aa2852e641022d390099cec092d4f94450a6116a1

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

Executable exe a7b266edf9abd1b58d82379aa2852e641022d390099cec092d4f94450a6116a1

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/180853/

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