MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40. 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 16 File information Comments
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SHA256 hash: 900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40
SHA3-384 hash: 46721d098da167a4021e4861c372c6cc2f6436cbee8539aa8c9e8e285b977dc50c6d4ab1ca294701e3273732fd05ecad
SHA1 hash: 0382336b34542453afcd4cc119732394560aaaa8
MD5 hash: 1c80c049781896c95d11c5cf2c184f30
humanhash: kentucky-steak-echo-nine
File name:SecuriteInfo.com.TrojanLoader.MSIL.DaVinci.Heur.8283.15875
Download: download sample
Signature AgentTesla
Create hunting rule
File size:711'680 bytes
First seen:2024-02-19 03:27:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:HMSmPwRYnOELz89VxEExVIslfYwp/Iih6n6kgziKuBurZPe4M3hk5soxSVnHg:HMSmP0Y749Iq/97QTgLRrFe46e5hxKnA
TLSH T1EDE4238071B8C76BEEB90BF6DA51006C41B2FA952162E7899CC2719F8C93F454D61BF3
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon ccd4cc68f0d4d469 (6 x Formbook, 5 x AgentTesla, 3 x PureLogsStealer)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
367
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40.exe
Verdict:
Malicious activity
Analysis date:
2024-02-19 03:30:31 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/3aa7a3ea-e45d-4403-bb7f-6700cfd8ec79

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/476707/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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SecuriteInfo.com.TrojanLoader.MSIL.DaVinci.Heur.8283.15875.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d2cac433761b2a2263f7db/reports/0845ab2e-286e-4960-a736-c348e9a3c5b0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e0a6abe5-51c1-48bf-8f20-ecff3708a422
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1394255
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1394255 Sample: SecuriteInfo.com.TrojanLoad... Startdate: 19/02/2024 Architecture: WINDOWS Score: 100 34 us2.smtp.mailhostbox.com 2->34 36 ip-api.com 2->36 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 12 other signatures 2->54 8 SecuriteInfo.com.TrojanLoader.MSIL.DaVinci.Heur.8283.15875.exe 4 2->8         started        11 ZUHFqcY.exe 3 2->11         started        13 ZUHFqcY.exe 2->13         started        signatures3 process4 signatures5 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->58 60 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->60 70 2 other signatures 8->70 15 SecuriteInfo.com.TrojanLoader.MSIL.DaVinci.Heur.8283.15875.exe 16 5 8->15         started        20 powershell.exe 21 8->20         started        62 Antivirus detection for dropped file 11->62 64 Multi AV Scanner detection for dropped file 11->64 66 Machine Learning detection for dropped file 11->66 22 ZUHFqcY.exe 14 2 11->22         started        68 Injects a PE file into a foreign processes 13->68 24 ZUHFqcY.exe 13->24         started        process6 dnsIp7 38 ip-api.com 208.95.112.1, 49707, 49712, 49721 TUT-ASUS United States 15->38 40 us2.smtp.mailhostbox.com 208.91.199.224, 49709, 49713, 49722 PUBLIC-DOMAIN-REGISTRYUS United States 15->40 30 C:\Users\user\AppData\Roaming\...\ZUHFqcY.exe, PE32 15->30 dropped 32 C:\Users\user\...\ZUHFqcY.exe:Zone.Identifier, ASCII 15->32 dropped 42 Tries to steal Mail credentials (via file / registry access) 15->42 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->44 26 WmiPrvSE.exe 20->26         started        28 conhost.exe 20->28         started        46 Tries to harvest and steal browser information (history, passwords, etc) 24->46 file8 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-02-19 02:09:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sagvg7lvp7obljjc2zsd3sihckkpuwzq5tpqqb76h7gq7fuazzaa._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240219-d1bskshb5w/
Behaviour
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
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/0a1307ac-2283-4463-8d70-9b299ff92d1d/
SH256 hash:
06e657f27dec7d4238de33bccffe2afe0ddeb0db34b1b67c9824784dc4c2ab0b
MD5 hash:
4e889cbaa7a03d4d3c31d6ef203ad840
SHA1 hash:
7b2723a8cbfa237773b733fd59c8445ea9e3356b
Link:
https://www.unpac.me/results/0a1307ac-2283-4463-8d70-9b299ff92d1d/
SH256 hash:
d1b5496a8e3c25d5d8a5e77bd56df0b3e983f0d3d543aefd574febf7b4fbd9f6
MD5 hash:
dd9a469f6f5d0e5bf087c2ab8e247dbf
SHA1 hash:
4038e5950d170acdac5699d5a3531b3105e7652d
Link:
https://www.unpac.me/results/0a1307ac-2283-4463-8d70-9b299ff92d1d/
SH256 hash:
eec85e738e3365c322d0f4372e448b666c8fd0754fd024b8781a3a8b69cad09f
MD5 hash:
7ec6c7cb795b09197580ae8c5c292537
SHA1 hash:
38975c3594a4d7a61b1d52b59f01a0db025f2ca5
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/0a1307ac-2283-4463-8d70-9b299ff92d1d/
Parent samples :
6aca2f44a1662c235d42bcaefaf34e0f841b34c620a77e3358156e910e5a7651
73b33d80db78b966ca0df11be61989bafd0553165564a45959fcbe570595f68d
84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa
81a7838ccb236673b22b689c771c82c6f3f28500b7e473a1f2c32635f885e98d
900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40
a245fd4c1bd3a3f93749c7e8f7165ce7873d32e3cd7185f18019355b8f393334
SH256 hash:
900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40
MD5 hash:
1c80c049781896c95d11c5cf2c184f30
SHA1 hash:
0382336b34542453afcd4cc119732394560aaaa8
Link:
https://www.unpac.me/results/0a1307ac-2283-4463-8d70-9b299ff92d1d/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/900d537d757f/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/900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/476707/

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