MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058
SHA3-384 hash: 488c386bad49f51d5ad29b0123a394e503749c7c99c6af634947bd8a9ac98bdb489881b919541cdb8061b492d4ba7da3
SHA1 hash: 91ee0c308cad7dd132d81c17665dcea985c16f0b
MD5 hash: ea1876a7a9c718cd3373bd77e4f95055
humanhash: one-beryllium-lima-purple
File name:Halkbank_Ekstre_20230915_080757_783952.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:646'656 bytes
First seen:2023-09-15 19:14:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:tG2iNxJHtJEOXTwu1DFIe3EjFCBEWotjK3OcDB2SnttuJqoXQzC/diIp:tG1vJNWOjyGEjFCBEHtWVQSttuxXQzCF
Threatray 5'643 similar samples on MalwareBazaar
TLSH T180D423C191794BB7C7781FF9284DEF2043B3AE0A137EE9162F9864DF167179902606A3
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.epic-office.eu:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
279
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Halkbank_Ekstre_20230915_080757_783952.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-09-15 19:24:36 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/3f53a92e-7223-4e8b-8211-13cee52b53a6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/448914/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6504ad3af1b40cb0d61c97a5/reports/52cf9c2a-8821-4e82-b44c-d98e249d0f7b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058
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/00e2736b-e402-4bfb-b3d1-c42041ea2cfe
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1309199
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
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
May check the online IP address of the machine
Multi AV Scanner detection for dropped 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 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
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1309199 Sample: Halkbank_Ekstre_20230915_08... Startdate: 15/09/2023 Architecture: WINDOWS Score: 100 70 Found malware configuration 2->70 72 Antivirus / Scanner detection for submitted sample 2->72 74 Sigma detected: Scheduled temp file as task from temp location 2->74 76 8 other signatures 2->76 7 Halkbank_Ekstre_20230915_080757_783952.pdf.exe 7 2->7         started        11 eeToSuFadRv.exe 5 2->11         started        13 plQRn125nurse.exe 2->13         started        15 plQRn125nurse.exe 2->15         started        process3 file4 52 C:\Users\user\AppData\...\eeToSuFadRv.exe, PE32 7->52 dropped 54 C:\Users\user\AppData\Local\...\tmp153E.tmp, XML 7->54 dropped 86 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->86 88 May check the online IP address of the machine 7->88 90 Uses schtasks.exe or at.exe to add and modify task schedules 7->90 92 Adds a directory exclusion to Windows Defender 7->92 17 Halkbank_Ekstre_20230915_080757_783952.pdf.exe 17 5 7->17         started        22 powershell.exe 20 7->22         started        36 3 other processes 7->36 94 Antivirus detection for dropped file 11->94 96 Multi AV Scanner detection for dropped file 11->96 98 Machine Learning detection for dropped file 11->98 24 eeToSuFadRv.exe 11->24         started        26 schtasks.exe 11->26         started        100 Injects a PE file into a foreign processes 13->100 28 plQRn125nurse.exe 13->28         started        30 schtasks.exe 13->30         started        32 plQRn125nurse.exe 15->32         started        34 schtasks.exe 15->34         started        signatures5 process6 dnsIp7 56 epic-office.eu 91.235.116.194, 587 THCPROJECTSRO Romania 17->56 58 mail.epic-office.eu 17->58 62 2 other IPs or domains 17->62 48 C:\Users\user\AppData\...\plQRn125nurse.exe, PE32 17->48 dropped 50 C:\...\plQRn125nurse.exe:Zone.Identifier, ASCII 17->50 dropped 78 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->78 80 Tries to steal Mail credentials (via file / registry access) 17->80 82 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->82 38 conhost.exe 22->38         started        60 mail.epic-office.eu 24->60 64 2 other IPs or domains 24->64 40 conhost.exe 26->40         started        66 2 other IPs or domains 28->66 42 conhost.exe 30->42         started        68 3 other IPs or domains 32->68 84 Tries to harvest and steal browser information (history, passwords, etc) 32->84 44 conhost.exe 34->44         started        46 conhost.exe 36->46         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-09-15 13:24:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7rad6543syiuyqmr5kcvszmkdrs3ddpjrz3vy3awigafdib26bma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 5'633 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230915-xx766ahe66/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
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
Unpacked files
SH256 hash:
921f29bded23aacf19cbe8716fd0267b709ad8f75a53f6c9a4406fa0243ac891
MD5 hash:
6ba3eccc362bcb581494cbb3973959bc
SHA1 hash:
cfc96cd366dc06b08edfd50a42a4f4a39b846cbd
Link:
https://www.unpac.me/results/c384db79-038f-49b1-a846-fe8b4bfa03b6/
SH256 hash:
0cc2d545cdbc9aca7ac5732fc2e1858bae1b8c575e67f0b4b8077610c5597806
MD5 hash:
604ba9fe5293c6b09155e9593e5fe8b4
SHA1 hash:
c9ca531c5c50091dcdeabea6af26643e897fe3f8
Link:
https://www.unpac.me/results/c384db79-038f-49b1-a846-fe8b4bfa03b6/
SH256 hash:
a7bb8bf15ba82bdb82272e59ebe0072c184f522455a55285718c3c99fc27f400
MD5 hash:
771d1c7847aca801b41fccf75492b136
SHA1 hash:
666ed67502c557562a6f590d1b2d5657c5883e21
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/c384db79-038f-49b1-a846-fe8b4bfa03b6/
Parent samples :
fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058
710f7ac4822a2c5293b5c796f769e9c3242f0d5a6ed03b7d4eb22bad282049dd
a137cff915e45fd894f48951ee7fccf5d7b9da31539a8fe0b287f1720a8794fe
SH256 hash:
0630b864e828fff2d66f33ab7d00fad231df4c00fc0bbad313ee0d12ca503198
MD5 hash:
f559a9abbd849eb977d262d597d6e4fd
SHA1 hash:
0a8769b40b026852690c89b913c2812817ef43c8
Link:
https://www.unpac.me/results/c384db79-038f-49b1-a846-fe8b4bfa03b6/
SH256 hash:
fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058
MD5 hash:
ea1876a7a9c718cd3373bd77e4f95055
SHA1 hash:
91ee0c308cad7dd132d81c17665dcea985c16f0b
Link:
https://www.unpac.me/results/c384db79-038f-49b1-a846-fe8b4bfa03b6/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fc403f779b96/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/fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
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 fc403f779b96114c4191ea8559658a1c65b18de98e775c6c16418051a03af058

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/448914/

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