MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 528fc6d3398f8379da836b5a3fa85da6dfd8aec284ce12a04abfa32d6d78da14. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 528fc6d3398f8379da836b5a3fa85da6dfd8aec284ce12a04abfa32d6d78da14
SHA3-384 hash: 2137ea4f9dbf1810212cf6e98f803fa534c81ae88a91f8a749f7b871ac9f854be8623a5ef971af34bb346e11fed24d1f
SHA1 hash: a9fabb342309dd6b0fd254c0cbbc877f469853a2
MD5 hash: 69b8698742a71d727610ee01f3682d48
humanhash: mars-alpha-moon-nuts
File name:invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'140'224 bytes
First seen:2021-09-01 16:17:13 UTC
Last seen:2021-09-01 19:24:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:ha/F84DtPASSVdYiO5GpS4u6C5oWpf0y3k0Vb/AElj8iDxLBYR1p2Z3+Xf6Mei0B:haNb017FV/8Hp6bU7d8U
Threatray 9'299 similar samples on MalwareBazaar
TLSH T1DA35203DAD162537EBAAB57CD4A6194EE39414EB23718DEDD2D2B34C204B61372DA30C
dhash icon f29296968e9e9ea6 (60 x AgentTesla, 37 x RedLineStealer, 35 x Formbook)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
293
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice.exe
Verdict:
Malicious activity
Analysis date:
2021-09-01 16:23:52 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e442312d-1cff-4995-a7cb-721fdf760d77

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/184517/
Detection(s):
SecuriteInfo.com.Trojan.YakbeexMSIL.ZZ4.26589.28127.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
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d2c740f6-f9fb-4712-8261-97b5693d4654
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/843501
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 475934 Sample: invoice.exe Startdate: 01/09/2021 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 8 other signatures 2->53 7 invoice.exe 6 2->7         started        11 kprUEGC.exe 5 2->11         started        13 kprUEGC.exe 2 2->13         started        process3 file4 31 C:\Users\user\AppData\...\fJdFBQaoHJL.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmpC2A3.tmp, XML 7->33 dropped 35 C:\Users\user\AppData\...\invoice.exe.log, ASCII 7->35 dropped 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->55 57 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->57 59 Uses schtasks.exe or at.exe to add and modify task schedules 7->59 15 invoice.exe 2 5 7->15         started        19 schtasks.exe 1 7->19         started        61 Multi AV Scanner detection for dropped file 11->61 63 Machine Learning detection for dropped file 11->63 65 Injects a PE file into a foreign processes 11->65 21 schtasks.exe 1 11->21         started        23 kprUEGC.exe 2 11->23         started        25 kprUEGC.exe 11->25         started        signatures5 process6 file7 37 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->37 dropped 39 C:\Windows\System32\drivers\etc\hosts, ASCII 15->39 dropped 41 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->41 dropped 43 Modifies the hosts file 15->43 45 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->45 27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/528fc6d3398f8379da836b5a3fa85da6dfd8aec284ce12a04abfa32d6d78da14/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-01 16:15:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kkh4nuzzr6bxtwudnnnd7kc5u3p5rlwcqthbfickx6rs23ly3ika._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0fa77ee6af812f5513bf0ae73a02143a4ed3a037e884aeccc57576f460a9ea57
AgentTesla
12885b0462e6977afc7c42d03c8e039a5df25f70b610177b8e02f6642847584b
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1dd9b2ee10e6a2b338d8e743d22226f7895e754b0ca2dd66ff5c8461fb376eec
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27d2b4249d148435c10ddc18a810ba2a9b688cab524066a2c34179e2dd6a77b5
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3be787bec6c661048c534c126761c2be937e70cb5ce8f1922cca5f4f22106b54
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60409e4b8acd893a7452f29affc7905ce71286c11127ce402c3a812c1fb52952
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68502a80bec0322e11e38a6e52cda66a56d649c386fa37dd8ee6729539c519ea
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77ccf33c233dd2f10f699699ca25eff2c6da889962f898b244244a1df4ebc806
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9af90b1fbae24e2479a5024184fdfbd2828947fff829d2484e22e7472e983bb7
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a95eb5ec5e4dbe107a9c01e7e5788f1a2074021505be442ef98f16a2c27f8af7
AgentTesla
+ 9'289 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/210901-c1qb8klkwe/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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:
96968ef9858488bf81c819953c11115c19656459dd9ce9f7754e42a3f23195d5
MD5 hash:
27459f3bae3fe5988ee34a2595c9373b
SHA1 hash:
c01ba566a84d38fcdcb983f2c6cbadc662a1da10
Link:
https://www.unpac.me/results/c8608130-8fb7-463a-8362-c70b9f2e099c/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/c8608130-8fb7-463a-8362-c70b9f2e099c/
SH256 hash:
71c099daf7f04394ebde45848c81996924e9f603e36c914d729626a740180eef
MD5 hash:
35597ca802febf75f9b203ed68b7ec60
SHA1 hash:
30b289cae3c2eab3deae1e7bac3cf0cef60a6ebe
Link:
https://www.unpac.me/results/c8608130-8fb7-463a-8362-c70b9f2e099c/
SH256 hash:
528fc6d3398f8379da836b5a3fa85da6dfd8aec284ce12a04abfa32d6d78da14
MD5 hash:
69b8698742a71d727610ee01f3682d48
SHA1 hash:
a9fabb342309dd6b0fd254c0cbbc877f469853a2
Link:
https://www.unpac.me/results/c8608130-8fb7-463a-8362-c70b9f2e099c/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/528fc6d3398f/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/528fc6d3398f8379da836b5a3fa85da6dfd8aec284ce12a04abfa32d6d78da14

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/184517/

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