MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5. 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: 19


Intelligence 19 IOCs YARA 17 File information Comments
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SHA256 hash: 4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5
SHA3-384 hash: 12a8080d46f3e098c5a9a6c7d1edc7844b0a4f7fcd10b9f051bdfe42aac15cf550d0278ca0ff71b324f974c1a825793b
SHA1 hash: a0e07d2eb1a497699d273c60f3a277d4cadbe122
MD5 hash: 0ff7020d0cd74ea4f1067fb3ef81d002
humanhash: uranus-pip-fix-beer
File name:Purchase Order-P220601-001.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:703'488 bytes
First seen:2024-06-04 11:25:26 UTC
Last seen:2024-06-04 12:30:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:6+/4O+O4KNr+uTWb7OWKvdf/erZu6O5DtRdARFylHYL8VWE78PhP49vbpkteK+f:9/lCucC113QZu7k6HNVBWp49vbqgf
Threatray 1'823 similar samples on MalwareBazaar
TLSH T11EE42392F898C73AF8F8B2F5426101EA47B62541C130F6EEEDD817C919D5384917AEE3
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)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
381
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5.exe
Verdict:
Malicious activity
Analysis date:
2024-06-04 11:27:27 UTC
Tags:
stealer agenttesla exfiltration smtp
Link:
https://app.any.run/tasks/aa360f0e-0561-44d4-91bc-4b32c806492d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.15671.20581.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665f16eaab69e84d6a2f5d2bwin7simulatehigh_evasion
Tags:
Banker Encryption Execution Network Static Gensteal Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/665ef9cf6b8dba248b3bed93/reports/db1c8cb9-e311-432f-9a8e-85fb7f6cf2a4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5
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/ec23c6ec-fd68-4656-b38a-486e1a90065a
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1451669
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1451669 Sample: Purchase Order-P220601-001.exe Startdate: 04/06/2024 Architecture: WINDOWS Score: 100 46 mail.alfainterplast.com.ua 2->46 48 alfainterplast.com.ua 2->48 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 14 other signatures 2->58 8 Purchase Order-P220601-001.exe 7 2->8         started        12 OqjWRKA.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\Roaming\OqjWRKA.exe, PE32 8->38 dropped 40 C:\Users\user\...\OqjWRKA.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmpF850.tmp, XML 8->42 dropped 44 C:\...\Purchase Order-P220601-001.exe.log, ASCII 8->44 dropped 60 Writes to foreign memory regions 8->60 62 Allocates memory in foreign processes 8->62 64 Adds a directory exclusion to Windows Defender 8->64 14 RegSvcs.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        26 2 other processes 8->26 66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 22 RegSvcs.exe 12->22         started        24 schtasks.exe 12->24         started        signatures6 process7 dnsIp8 50 alfainterplast.com.ua 91.239.232.46, 49703, 49706, 587 HOSTPRO-ASUA Ukraine 14->50 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->72 74 Loading BitLocker PowerShell Module 18->74 28 conhost.exe 18->28         started        30 WmiPrvSE.exe 18->30         started        32 conhost.exe 20->32         started        76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->76 78 Tries to steal Mail credentials (via file / registry access) 22->78 80 Tries to harvest and steal ftp login credentials 22->80 82 Tries to harvest and steal browser information (history, passwords, etc) 22->82 34 conhost.exe 24->34         started        36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-04 11:26:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
26 of 38 (68.42%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jkrxueo5wz7h6odyjyemz27an2pj26tuced2r64lx5py7bx3j7cq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec
AgentTesla
27fd2ef620c481f51dfa374bcc896396f2afcf809f1d5733c49aa1dbd59989d7
AgentTesla
4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5
AgentTesla
f303624986bcad8a2b4dcf857b5fc82f54c933082c0849dd633e9c1651afde98
AgentTesla
+ 1'813 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240604-njvjgaee7v/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AgentTesla
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/41b74c95-36e6-46df-9664-81ced8706026
Unpacked files
SH256 hash:
4ed3b0a80feebddd6441815ea99334d7eab55813713a9aa2953412b767405bb8
MD5 hash:
e472f83fa7fb92da892e8ebda9d92112
SHA1 hash:
af8477c3b9530134042aed375122d395d91879e8
Link:
https://www.unpac.me/results/81f1288d-b0ac-4908-82da-21e9d8ee31ed/
SH256 hash:
00cd894d82acd46168145165d758677f4906f4c32c2876304bcaa1b898b23bdd
MD5 hash:
e52e61b92dd110ae0f31c6e524bab6a5
SHA1 hash:
43e83afe8bc35367c7d7fd1fee91403c5702d4ad
Link:
https://www.unpac.me/results/81f1288d-b0ac-4908-82da-21e9d8ee31ed/
SH256 hash:
503c54197b94dddaf60f305470376b2a4c79c305142a974cae9ceb41ed83d47a
MD5 hash:
6348d9099de0cbee2e15c997bc7748ae
SHA1 hash:
17c5ffeae931fc09d64dd7299f7b4ede703eb23a
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_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/81f1288d-b0ac-4908-82da-21e9d8ee31ed/
Parent samples :
bddcfdca7da88bdfed52adaebcb8ecdefe3ba41ae99cf2ab5e917025aa03285e
4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5
SH256 hash:
55729815a6ad44739f2af0c7a7096f4153fcc109d440f23d0d609065e96b625e
MD5 hash:
82a8fdab718d8d9c1c82472293a72e3d
SHA1 hash:
042c0d08baf858128d32c01476380e142891456e
Link:
https://www.unpac.me/results/81f1288d-b0ac-4908-82da-21e9d8ee31ed/
SH256 hash:
4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5
MD5 hash:
0ff7020d0cd74ea4f1067fb3ef81d002
SHA1 hash:
a0e07d2eb1a497699d273c60f3a277d4cadbe122
Link:
https://www.unpac.me/results/81f1288d-b0ac-4908-82da-21e9d8ee31ed/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4aa37a11ddb6/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/4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5

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:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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_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: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_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
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.

Malspam

AgentTesla

Executable exe 4aa37a11ddb67e7f38784e08ccebe06e9e9d7a741107a8fb8bbf5f8f86fb4fc5

(this sample)

  
Delivery method
Distributed via e-mail attachment

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

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