MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3. 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: 16


Intelligence 16 IOCs YARA 16 File information Comments
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SHA256 hash: 18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3
SHA3-384 hash: 34645b4c790a232569af08089c9411269c0bb33d561139ba7343ecb09975c8a10faa4b48766b92f1172aeeb019a669f9
SHA1 hash: 65ff38bc2e98f89f01088e77f921230c02ed870d
MD5 hash: 3e142ca68f08905cab743c39bf7f53ba
humanhash: maryland-tennessee-mobile-april
File name:cXPFfk0pBp7bEsb.pif
Download: download sample
Signature AgentTesla
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File size:681'984 bytes
First seen:2024-05-02 06:25:06 UTC
Last seen:2024-05-02 07:25:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'614 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:W4OB778QbN5vI3vIXpeFIJMTzfSmzQy3kymdJTRD1iKNDsreh5DSqiUNeGSggAU:TOBNN5QAZHJozSyC9PDX5WaXVU
Threatray 4'114 similar samples on MalwareBazaar
TLSH T1C1E4230C259E965FCEFF40FAACD52009DBF5A51297F1EB9E4CC180E66B5EB8083101B9
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 4018f9e960e20464 (19 x AgentTesla, 6 x Formbook, 2 x PureLogsStealer)
Reporter lowmal3
Tags:AgentTesla exe pif

Intelligence

File Origin
# of uploads :
2
# of downloads :
331
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3.exe
Verdict:
Malicious activity
Analysis date:
2024-05-02 06:26:19 UTC
Tags:
evasion stealer agenttesla exfiltration smtp
Link:
https://app.any.run/tasks/f33226eb-8276-4f99-a451-5c952d25f0da

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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SecuriteInfo.com.Trojan.GenericKD.72574261.18654.3835.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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 a custom TCP request
Sending an HTTP GET request
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/663331fa9cdc03b57aba1bf1/reports/9470818a-8520-4215-bd84-d82f0af138fc/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3
Malware family:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/03cbd3a6-d23e-4ff1-a816-a05007d6c26f
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/1435171
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
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
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Snort IDS alert for network traffic
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, 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: 1435171 Sample: cXPFfk0pBp7bEsb.pif.exe Startdate: 02/05/2024 Architecture: WINDOWS Score: 100 21 mail.kowalskiokna.pl 2->21 23 ip-api.com 2->23 25 api.ipify.org 2->25 33 Snort IDS alert for network traffic 2->33 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 13 other signatures 2->39 8 cXPFfk0pBp7bEsb.pif.exe 4 2->8         started        signatures3 process4 signatures5 41 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->43 45 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->45 47 3 other signatures 8->47 11 cXPFfk0pBp7bEsb.pif.exe 15 2 8->11         started        15 powershell.exe 23 8->15         started        process6 dnsIp7 27 mail.kowalskiokna.pl 212.244.155.98, 49717, 587 TPNETPL Poland 11->27 29 ip-api.com 208.95.112.1, 49714, 80 TUT-ASUS United States 11->29 31 api.ipify.org 104.26.12.205, 443, 49713 CLOUDFLARENETUS United States 11->31 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file / registry access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 55 Tries to harvest and steal browser information (history, passwords, etc) 11->55 57 Loading BitLocker PowerShell Module 15->57 17 WmiPrvSE.exe 15->17         started        19 conhost.exe 15->19         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3/
Threat name:
Win32.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-04-29 05:40:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 24 (91.67%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dd2erbvzfactgsd3lcq75k32h25umnyyifyqszbum4yveufumczq._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Similar samples:
06aa10d506553f5dedcb071dde3402df257ec09e60468af7fd4764777482896b
AgentTesla
18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3
AgentTesla
4cf20ea54fb348cc2573628cf6d751faa35d3adf5317970068d28185c5a285c9
AgentTesla
8fb9b9b7f10e44c103bfca60eade9db7ce1ed5fd592f1bf8a2ad77da100cd70c
AgentTesla
ac71f9ab4ccb920a493508b0e0577b31fe547aa07e914f58f1def47d08ebcf7d
AgentTesla
+ 4'104 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240502-g66rpabd3x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads WinSCP keys stored on the system
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:
caa728be0f558a6b63e31e0e3538c919d5eab5d3a059bad0a84c2a9e3c1ea400
MD5 hash:
0177de74ab7e293aff8a31002c90ebec
SHA1 hash:
f977f1962fb9e716da482e9f5c964138aa9726e7
Link:
https://www.unpac.me/results/4e8f1f62-27fd-4293-a254-9cab8b02af80/
SH256 hash:
08ee6767ba9067e9dab8a5090c9cdfd06cf644ef6d15c9351722959cb8d77c14
MD5 hash:
ad5ce4d0c6bd8d8737de6caf3ad7bae0
SHA1 hash:
e2c0ce478081fd65230d58d19e5f8cb42cebcb05
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/4e8f1f62-27fd-4293-a254-9cab8b02af80/
Parent samples :
06aa10d506553f5dedcb071dde3402df257ec09e60468af7fd4764777482896b
18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3
SH256 hash:
6a65773ff4b27f335a523666899f2639760497f8df04faeded74816b329c6871
MD5 hash:
3ed0de687503a2f9110672a219013b9f
SHA1 hash:
d4d5a29e1df36adee2992a3f9f93ef9428392896
Link:
https://www.unpac.me/results/4e8f1f62-27fd-4293-a254-9cab8b02af80/
SH256 hash:
380ba91ca31f0c895128bd2105bdd7626dd2f1ca96d181c0b4ed089425f54567
MD5 hash:
b69af20fc56fd5b4e52360a6f59265ab
SHA1 hash:
929e61dc9eb469ca42021b510c2e84fc4642f620
Link:
https://www.unpac.me/results/4e8f1f62-27fd-4293-a254-9cab8b02af80/
SH256 hash:
18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3
MD5 hash:
3e142ca68f08905cab743c39bf7f53ba
SHA1 hash:
65ff38bc2e98f89f01088e77f921230c02ed870d
Link:
https://www.unpac.me/results/4e8f1f62-27fd-4293-a254-9cab8b02af80/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/18f44886b928/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3

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
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 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
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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
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

  
Delivery method
Other

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments