MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670
SHA3-384 hash: ee212a45f2400922b988c57847fb713894ee270d2594fe90f0773c0cc90bf5c094af1aa67738a9d837755f9dd2e48f16
SHA1 hash: 1b98e3a00169ac13687795a4009d350bcd3e031c
MD5 hash: 369b3343acf9f397aba8497d75f6cf07
humanhash: washington-oxygen-edward-arkansas
File name:#es0983.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:766'976 bytes
First seen:2023-05-10 12:19:45 UTC
Last seen:2023-05-13 22:50:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:0yZfTjcFB+4Xv0Ow9Lh0kiPoknaBL/iOjoKtE/SZzrimvGUntcTiytBlk5:0gLjc8OmLOlPBnaprjKSZt1auytg5
Threatray 1'043 similar samples on MalwareBazaar
TLSH T10AF4E021622A5B2BC7A843FE0A28854513B97716FD6BD23D6EDF21CDEC12B104E12F57
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
245
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
#es0983.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-05-10 12:22:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/efb078b0-7c09-4080-bf6c-cd452ed45945

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/388165/
Detection(s):
SecuriteInfo.com.Variant.Lazy.338474.9437.22890.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
barys comodo lokibot packed
Link:
https://www.filescan.io/uploads/645b8bf32855dd84c808371c/reports/9eb7e63b-b146-474c-bdd4-d2b32b4ec8fd/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ae0f1bc7-9e80-487e-ba84-ae4604bec5b6
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1229996
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 862978 Sample: #es0983.pdf.exe Startdate: 10/05/2023 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Sigma detected: Scheduled temp file as task from temp location 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 6 other signatures 2->53 7 #es0983.pdf.exe 7 2->7         started        11 hEPEUdBem.exe 4 2->11         started        process3 file4 33 C:\Users\user\AppData\Roaming\hEPEUdBem.exe, PE32 7->33 dropped 35 C:\Users\...\hEPEUdBem.exe:Zone.Identifier, ASCII 7->35 dropped 37 C:\Users\user\AppData\Local\...\tmp752E.tmp, XML 7->37 dropped 39 C:\Users\user\AppData\...\#es0983.pdf.exe.log, ASCII 7->39 dropped 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->55 57 May check the online IP address of the machine 7->57 59 Uses schtasks.exe or at.exe to add and modify task schedules 7->59 61 Adds a directory exclusion to Windows Defender 7->61 13 #es0983.pdf.exe 15 2 7->13         started        17 powershell.exe 20 7->17         started        19 schtasks.exe 1 7->19         started        21 #es0983.pdf.exe 7->21         started        63 Multi AV Scanner detection for dropped file 11->63 65 Machine Learning detection for dropped file 11->65 67 Injects a PE file into a foreign processes 11->67 23 hEPEUdBem.exe 2 11->23         started        25 schtasks.exe 1 11->25         started        signatures5 process6 dnsIp7 41 api4.ipify.org 64.185.227.155, 443, 49700, 49701 WEBNXUS United States 13->41 43 api.ipify.org 13->43 27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        45 api.ipify.org 23->45 69 Tries to steal Mail credentials (via file / registry access) 23->69 71 Tries to harvest and steal browser information (history, passwords, etc) 23->71 73 Installs a global keyboard hook 23->73 31 conhost.exe 25->31         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-05-10 07:43:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 37 (51.35%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=us27plwt34nk77fmiqr7v4rcw6g2ecncfuxwxv2m35dnfmkjqzya._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1815892a1d6a47e7d5c2108743f78e20cf5b2283ceba13f232c780dddc3c5324
AgentTesla
21a5e58e2fe39e481f9977f94a94d352c4c492e9bd6d79d4ae3bbf4cc4a2d751
AgentTesla
3706066f775904b6ac4d07b179d3f7846c15c085ddeff5633c72a555d9529748
AgentTesla
4634594a43ca9d6f4630aecf8a17a04a1b2e942cafa3080a4064e2ec7741bd5f
AgentTesla
a782d89a06f36333a3e7370c6b535d5dfb518edfed64e660d989de3b53b207fa
AgentTesla
aba99ac623b8f43f53873ee48dbf2f18f7206ae2041821e660b79505a3743ead
AgentTesla
e2e44650ba8303af8f989baa14c50855cd25249e664d3ef5039edbbd6f3ca32e
AgentTesla
fee8b0a5bd69e9ca4d343dbf309b19ecc9a510dc26f7d84d1095fbb494763a99
AgentTesla
+ 1'033 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230510-phq1bshf71/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
ebb42bbca5bd97754024846ca5888f1eaf6901796d334f0dc588ad5e8c930f11
MD5 hash:
e1009deb81f39bbbfd337c6e4e12fd91
SHA1 hash:
dd37c3ea31b6884af0cfc747bd9ca747e5ac533c
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/8d0ceaa9-bd9c-4d99-8fef-985c6ef793c2/
Parent samples :
a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670
ba40edfef4bbd18ad6a596c678369f2a8ef335ced6ed96699124f164accf5243
17fc4205571ea12188b9ed8b5659339e305ebc54bace4e3ba62c72c6b61cdfcf
aa8d4070795a05587fc8ad7dcbe4762a7f48e1bda165dbe12ccbe72412784757
SH256 hash:
bd8f7dfde6dd7a119c16575910e68418e24a1df6eb563c070c4c756d2ca3c620
MD5 hash:
d13c27165735ac6b13f3d5870025dfb1
SHA1 hash:
c17049f590332fe7680333d1be5374319d5e5131
Link:
https://www.unpac.me/results/8d0ceaa9-bd9c-4d99-8fef-985c6ef793c2/
SH256 hash:
09f80a6db5b4da6a84d4981ae30e7ff137c2fa1e4cdbfecabb71913246c265d0
MD5 hash:
dbc3d207c0c1818c1d6b21505704eb93
SHA1 hash:
b4ea0fc91df9ac181d266d5b37ae51bf8f227208
Link:
https://www.unpac.me/results/8d0ceaa9-bd9c-4d99-8fef-985c6ef793c2/
SH256 hash:
8fc39a3807077068a2b974a6fe0669181c53b2826b554ed9b27578d9e60be622
MD5 hash:
389147e21dad6ef71750162ca5673981
SHA1 hash:
61005f924509684f8f23d5e360b7ec407a2f1832
Link:
https://www.unpac.me/results/8d0ceaa9-bd9c-4d99-8fef-985c6ef793c2/
SH256 hash:
d8fc5dfdf2800247eb610beb076fec4d2becf6d951e89445d43237fe97814218
MD5 hash:
e5d93dadd08b8bc727e4f4853c6881ba
SHA1 hash:
27e0e057d33f01586193b0cbf06561c2863951f4
Link:
https://www.unpac.me/results/8d0ceaa9-bd9c-4d99-8fef-985c6ef793c2/
SH256 hash:
a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670
MD5 hash:
369b3343acf9f397aba8497d75f6cf07
SHA1 hash:
1b98e3a00169ac13687795a4009d350bcd3e031c
Link:
https://www.unpac.me/results/8d0ceaa9-bd9c-4d99-8fef-985c6ef793c2/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4b5f7aed3df/report/overview.html
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/a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 a4b5f7aed3df1aaffcac4423faf222b78da209a22d2f6bd74cdf46d2b1498670

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/388165/

Comments