MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12
SHA3-384 hash: fc4242a7f4aa2827794c125db11efc802691a4c1df207be2cc40903931ec5c943ceea0b9f3fa0c159c53d3e196e6b3b7
SHA1 hash: d37897805dbb2cb3baa073632a945d09f2e63681
MD5 hash: 53483243c640b8970c9a3ff9104566fa
humanhash: sink-carpet-blossom-avocado
File name:Halkbank_Ekstre_20230922_080757_783952.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:697'856 bytes
First seen:2023-09-22 14:58:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:JrD6YuMnVTZsTvHAJ/FvspW+Pz7IEfwxechfKTxdIl0HKSzTKp0K:hD9uMnVdsTYJ/Ts/IYwxDudbhK
Threatray 5'707 similar samples on MalwareBazaar
TLSH T119E4231F72E48B08D8B88B7537A94A81BBFA41DB9D48C77E3CD2B2E45C17340A574693
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)
File icon (PE):PE icon
dhash icon 0070e0c4c4e07000 (9 x AgentTesla, 2 x Loki, 1 x Formbook)
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.netre-agro.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Halkbank_Ekstre_20230922_080757_783952.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-09-22 15:01:05 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/00ec4569-5bfe-4718-8e3c-51ecf41301e7

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/450636/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2385.12652.14477.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/650dabbe32ffdb7a7a10249e/reports/bd2b2c1f-5eee-45d1-beb9-7489119ce8b2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6f09cbdc-5351-4dd3-9ec4-eeb766fa237e
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1312972
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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
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
Snort IDS alert for network traffic
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: 1312972 Sample: Halkbank_Ekstre_20230922_08... Startdate: 22/09/2023 Architecture: WINDOWS Score: 100 70 Snort IDS alert for network traffic 2->70 72 Found malware configuration 2->72 74 Sigma detected: Scheduled temp file as task from temp location 2->74 76 10 other signatures 2->76 7 Halkbank_Ekstre_20230922_080757_783952.pdf.exe 7 2->7         started        11 NcbzfWtVnVcgq.exe 5 2->11         started        13 plQRn125evan.exe 2->13         started        15 plQRn125evan.exe 2->15         started        process3 file4 52 C:\Users\user\AppData\...52cbzfWtVnVcgq.exe, PE32 7->52 dropped 54 C:\Users\user\AppData\Local\Temp\tmpC01.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_20230922_080757_783952.pdf.exe 17 5 7->17         started        22 powershell.exe 21 7->22         started        32 3 other processes 7->32 94 Multi AV Scanner detection for dropped file 11->94 96 Machine Learning detection for dropped file 11->96 24 NcbzfWtVnVcgq.exe 11->24         started        34 2 other processes 11->34 26 plQRn125evan.exe 13->26         started        28 schtasks.exe 13->28         started        98 Injects a PE file into a foreign processes 15->98 30 plQRn125evan.exe 15->30         started        36 2 other processes 15->36 signatures5 process6 dnsIp7 56 netre-agro.com 91.235.116.194, 49717, 49719, 49720 THCPROJECTSRO Romania 17->56 58 mail.netre-agro.com 17->58 62 3 other IPs or domains 17->62 48 C:\Users\user\AppData\...\plQRn125evan.exe, PE32 17->48 dropped 50 C:\Users\...\plQRn125evan.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        64 3 other IPs or domains 24->64 66 2 other IPs or domains 26->66 40 conhost.exe 28->40         started        68 2 other IPs or domains 30->68 84 Tries to harvest and steal browser information (history, passwords, etc) 30->84 60 127.0.0.1 unknown unknown 32->60 42 conhost.exe 32->42         started        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/8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-09-22 14:59:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
16 of 23 (69.57%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsnk6vnl3lzkre6vnxap6pz6g7wbactoblik36bpft7utfyrfyja._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1b91aa318e9c011abed18662e8c577ddcb12499de26e2fd19bfb4a4ea81f7450
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217a04102c6021e98815a35feab526e99a259f01c9baee3e143288dbc160b920
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34ab0bd5cc0a4401b8a52a31623fa59f3ee33b079b99e14f2969cbded7f28282
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5d1e3eddb5c1b6fbbcb136094098945e7db58322b8cf9d2b138e566a447a75eb
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61c4be98ac4dadf6b565cd7d606f7f5b1d08f67dc7699e26c2c3ecdc78edb443
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80dd6624e723c71bda0bb04573a1e96662184bd5dbef76c824c884df8afa2e15
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83e202c299d139b909d80f39e81487515d2f21a9a0b6546f42dbd194088e07e7
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9863fd34a60f401ae35d1704085d58ce9972dc26b894175dad346d388abba330
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ffc7f44e4dd3a2456d2a2a25ab2dcd4ef93d584ffed994025f03ef3dd34d4c6b
AgentTesla
+ 5'697 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/230922-scqzxsaf96/
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
Accesses Microsoft Outlook profiles
Adds Run key to start application
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
Unpacked files
SH256 hash:
c32b14818425fcc54ee175370bdf637c783bf4cdd375fe680d658d1fb97004ac
MD5 hash:
7cf7489bdfdc741dd34b89d7eb983a3c
SHA1 hash:
d56afc3114efaa6b63f9b46caa2e28fca3fbf543
Link:
https://www.unpac.me/results/9a2f4887-30dc-4601-bca3-5c0e35e1ec49/
SH256 hash:
d4d5678b670977ae70f3797f601836b21e98bbbc875de0509943abd243c046c3
MD5 hash:
d39bd0c2eafcdca7ec6d692631d52ae0
SHA1 hash:
c0f1f6d03116044e3ca7ff8f5425f14b7dd0ac8c
Link:
https://www.unpac.me/results/9a2f4887-30dc-4601-bca3-5c0e35e1ec49/
SH256 hash:
df4ae14aba1386482151a3b8cc58ef081c58306da7f4cc0c35e0718242cf043c
MD5 hash:
8383b9306b9b5929b0aed1f24991d929
SHA1 hash:
6acebb9f139a62de981a3ec15ce35f61f5c3132e
Link:
https://www.unpac.me/results/9a2f4887-30dc-4601-bca3-5c0e35e1ec49/
SH256 hash:
50c8eb6b7abe662fc6bd109d6c631e255a390cfc508b639e9aa8b03ce2b62019
MD5 hash:
1afdc8d1c6a2be496ce21c8581290869
SHA1 hash:
5c8a40f74b9cd3e473b9f62db66e6d3bdddefc89
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/9a2f4887-30dc-4601-bca3-5c0e35e1ec49/
Parent samples :
5d1e3eddb5c1b6fbbcb136094098945e7db58322b8cf9d2b138e566a447a75eb
ffc7f44e4dd3a2456d2a2a25ab2dcd4ef93d584ffed994025f03ef3dd34d4c6b
8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12
632fe84dfca150a891d9aa68ba0fb7c8c1230879a05bb6ac1dc4d0538133b417
SH256 hash:
631c38cf652447128f262e600cc8783bdcb6d36f77e1d86b37f9fad749f6e997
MD5 hash:
c22c5bef73b2740fc1ccdf0e5a1cb7ea
SHA1 hash:
216ae0a5f45a184d3f62175703183277d93b87b6
Link:
https://www.unpac.me/results/9a2f4887-30dc-4601-bca3-5c0e35e1ec49/
SH256 hash:
8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12
MD5 hash:
53483243c640b8970c9a3ff9104566fa
SHA1 hash:
d37897805dbb2cb3baa073632a945d09f2e63681
Link:
https://www.unpac.me/results/9a2f4887-30dc-4601-bca3-5c0e35e1ec49/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8c9aaf55abda/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/8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
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 8c9aaf55abdaf2a893d56dc0ff3f3e37ec100a6e0ad0adf82f2cff4997112e12

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/450636/

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