MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618
SHA3-384 hash: 9d8d68adc0c78f7b6bcb8e266c8da3fa9bb27ae32dbf86fb3677b1fc4eea034bfcc55d4757b539d4a83148bcc9a863a0
SHA1 hash: c05e01390eb3f59f58ecf92e68c3975197c1f1c6
MD5 hash: 84fc8471bb943cd772536922808494be
humanhash: timing-burger-whiskey-alanine
File name:Halkbank_Ekstre_20230918_073809_405251-PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:890'880 bytes
First seen:2023-09-22 14:58:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Pm2iNNEisUH/hPBKkKHUa01o3DvwuxG/UffSaxGkHIeCRoFQUW9d+pnEcTgVOGEo:e1XEWpPBKkmQo3jwd/UfDBjQ9+ixW1q
Threatray 1'506 similar samples on MalwareBazaar
TLSH T1E415DFC6E58456A0DD1DAB71663ACD3552237EBEA874A42C28DE3D373BFB7931021093
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)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
261
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Halkbank_Ekstre_20230918_073809_405251-PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-09-22 15:06:28 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/5c923998-cd8b-4165-95d1-c49fefbb9e63

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/450635/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cryptojoker packed
Link:
https://www.filescan.io/uploads/650dabbd83a0c6425dfc9680/reports/6a1be3d0-7195-4923-b33f-bdf9265ef45e/overview
Verdict:
Malicious
Labled as:
Ransom.CryptoJoker.Generic
Link:
https://www.hybrid-analysis.com/sample/fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9c6a19b5-0ba6-47f8-8804-566d408484ee
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1312973
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1312973 Sample: Halkbank_Ekstre_20230918_07... Startdate: 22/09/2023 Architecture: WINDOWS Score: 100 36 api.telegram.org 2->36 48 Found malware configuration 2->48 50 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 56 8 other signatures 2->56 8 Halkbank_Ekstre_20230918_073809_405251-PDF.exe 7 2->8         started        12 TBjeFzdy.exe 5 2->12         started        signatures3 54 Uses the Telegram API (likely for C&C communication) 36->54 process4 file5 32 C:\Users\user\AppData\Roaming\TBjeFzdy.exe, PE32 8->32 dropped 34 C:\Users\user\AppData\Local\...\tmp49D3.tmp, XML 8->34 dropped 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->58 60 May check the online IP address of the machine 8->60 62 Uses schtasks.exe or at.exe to add and modify task schedules 8->62 64 Adds a directory exclusion to Windows Defender 8->64 14 Halkbank_Ekstre_20230918_073809_405251-PDF.exe 15 2 8->14         started        18 powershell.exe 21 8->18         started        20 schtasks.exe 1 8->20         started        66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 22 TBjeFzdy.exe 12->22         started        24 schtasks.exe 12->24         started        signatures6 process7 dnsIp8 38 api4.ipify.org 173.231.16.77, 443, 49720 WEBNXUS United States 14->38 40 api.telegram.org 149.154.167.220, 443, 49722, 49724 TELEGRAMRU United Kingdom 14->40 42 api.ipify.org 14->42 72 Installs a global keyboard hook 14->72 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        44 104.237.62.212, 443, 49723 WEBNXUS United States 22->44 46 api.ipify.org 22->46 74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->74 76 Tries to steal Mail credentials (via file / registry access) 22->76 78 Tries to harvest and steal browser information (history, passwords, etc) 22->78 30 conhost.exe 24->30         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2023-09-21 09:37:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
42
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=73atvjonljpyqm3bwems62h6l53nulqbin6ztv3hyob7ke35uyma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1d7f354ba98a45d7aa065e8fdf5ca6b332037102f694795440f93983076a1d90
AgentTesla
3562c70421633032424a8757b10dcbec088bcfb140a1c6940f2294e2b466c291
AgentTesla
48b23bea4cdfe0a7e79bc5ebde6eb2d9c69485e14694c48c13f0aab452b60d74
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6eeeec436d7abca44202ca9e5f3e20d2bc6a7f4adaf240e1ba5ab41e94890c29
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731f4ad4b7e083812281f8d59bb4c900eca035ab14d6c30215b336474fa76dce
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b2fc36f6f4e72e2700737425abab14e4d75a190195c7cd8397cb9ae9761ec34b
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ee8e7b9f095f6eb61410237052c6195b4aedf3a20a94f9854285f03a76f3a3b2
AgentTesla
+ 1'496 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/230922-scqzxsaf95/
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
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6315598701:AAF2CsdeWHvEuw0HSURtUQQu4FuqwvM5AOA/
Unpacked files
SH256 hash:
a8a5fa695501c7d7e1c70dc9c7aa9dbaa98d03c4ded262947811cb883c3afe7d
MD5 hash:
200ab8e098a1e41ca357d3cdcfab4bdf
SHA1 hash:
dc2a6966c9b964286e41d8cc77d57bc5e41ed216
Link:
https://www.unpac.me/results/50c26544-9e6e-4176-b15f-197b144ea314/
SH256 hash:
a6fa6686fd52eb8162e96491f3a45dfac4cf62585134dde4db7997a34e5d4bcc
MD5 hash:
8bca3988496d09f5652f64a9cbfd3d20
SHA1 hash:
b4cf9d4557a33ec72afd4c56ee2ba83a42f8c7c4
Link:
https://www.unpac.me/results/50c26544-9e6e-4176-b15f-197b144ea314/
SH256 hash:
f18ede1829f6537e67a2f4e8cdcd767ee6b50b8dab392ecf26c75ac34e1494fb
MD5 hash:
65d61d54ea7665a497fed9699cc9e7e5
SHA1 hash:
8418bb9f902beac21267a1a60ac8431a4179defc
Link:
https://www.unpac.me/results/50c26544-9e6e-4176-b15f-197b144ea314/
SH256 hash:
48a35a4b67fea62998ec417a3b0f0ce2069b2c1f6811c167ceb3b52636ea4dd0
MD5 hash:
078ef631602c3f1ed57ed199e2128831
SHA1 hash:
26e69cb133800979ab882a6ece5ddf5f29c777f8
Link:
https://www.unpac.me/results/50c26544-9e6e-4176-b15f-197b144ea314/
SH256 hash:
7ec118e70613ce2d9aee29cda2918ca710dde346c68d4da75c2ea0402e6d4391
MD5 hash:
1622a62bf6805b2dca82a8632eceac71
SHA1 hash:
071b72a5a1231149dfe4b9fcfa3a6ee49265ab7c
Link:
https://www.unpac.me/results/50c26544-9e6e-4176-b15f-197b144ea314/
SH256 hash:
fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618
MD5 hash:
84fc8471bb943cd772536922808494be
SHA1 hash:
c05e01390eb3f59f58ecf92e68c3975197c1f1c6
Link:
https://www.unpac.me/results/50c26544-9e6e-4176-b15f-197b144ea314/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fec13aa5cd5a/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/fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618

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:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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 fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/450635/

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