MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc. 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: 20


Intelligence 20 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
SHA3-384 hash: c52350b321101c72d1dbe38bfe0ac95cd61395d9aff4ffe26ef00c789c31185acb8525ba647ce2a8fc92d6c2871011e5
SHA1 hash: 8465ecd7f2020c1fc24b576c938cf349f157d0e7
MD5 hash: a3ef821627916a0e159c90de54b792c8
humanhash: earth-seven-oscar-timing
File name:257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:684'032 bytes
First seen:2024-09-03 14:04:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:y4ndmopBj/UqGCrsg5Nx9GmTvC/MTYaF4U34/ccHS:fngOMuVrTvC/9aC641y
Threatray 4'130 similar samples on MalwareBazaar
TLSH T15CE4BF5936E408B8C53E99BBF8F2417C5A30686265E2D86512CF1FCC7DCAFA1098365F
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
372
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
Verdict:
Malicious activity
Analysis date:
2024-09-03 14:14:47 UTC
Tags:
stealer evasion smtp exfiltration agenttesla
Link:
https://app.any.run/tasks/c2c7cf6d-4aac-44af-9c78-408ac1a4c2a6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2944.20305.15382.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d71793f3d7ccf99f8fbe7d
Tags:
Discovery Execution Generic Infostealer Network Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Enabling the 'hidden' option for analyzed file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Connection attempt to an infection source
Stealing user critical data
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
infostealer lolbin packed shell32
Link:
https://www.filescan.io/uploads/66d7178f71a667da1be58268/reports/b7679737-5683-412f-b8f8-053cc141ff00/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
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/d4990e7c-6911-4d27-b5fd-89ae7b3e6f00
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1475938
Signature
.NET source code references suspicious native API functions
AI detected suspicious sample
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Creates executable files without a name
Drops PE files to the startup folder
Found malware configuration
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Copy file to startup via Powershell
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1475938 Sample: RFQ New Order - 57m#U00b3 L... Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 35 mail.privateemail.com 2->35 37 api.ipify.org 2->37 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 11 other signatures 2->65 8 RFQ New Order - 57m#U00b3 LPG SEMI TRAILER 7 NOS.exe 2 2->8         started        11 .exe 2 2->11         started        13 svchost.exe 1 1 2->13         started        signatures3 process4 dnsIp5 67 Injects a PE file into a foreign processes 8->67 16 powershell.exe 13 8->16         started        20 RFQ New Order - 57m#U00b3 LPG SEMI TRAILER 7 NOS.exe 15 2 8->20         started        23 .exe 14 2 11->23         started        25 powershell.exe 11 11->25         started        43 127.0.0.1 unknown unknown 13->43 signatures6 process7 dnsIp8 31 C:\Users\user\AppData\Roaming\...\.exe, PE32 16->31 dropped 33 C:\Users\user\...\.exe:Zone.Identifier, ASCII 16->33 dropped 45 Creates executable files without a name 16->45 47 Drops PE files to the startup folder 16->47 49 Powershell drops PE file 16->49 27 conhost.exe 16->27         started        39 mail.privateemail.com 198.54.122.135, 49733, 49738, 587 NAMECHEAP-NETUS United States 20->39 41 api.ipify.org 172.67.74.152, 443, 49730, 49737 CLOUDFLARENETUS United States 20->41 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->51 53 Tries to steal Mail credentials (via file / registry access) 23->53 55 Tries to harvest and steal ftp login credentials 23->55 57 Tries to harvest and steal browser information (history, passwords, etc) 23->57 29 conhost.exe 25->29         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-07-17 08:00:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ev7jtxswje4aykh5zfexggrc3sfx3azdqkw5wcw22mzya4v7np6a._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
3509383dbd13a16f6b7414d1488229b6284b47b1f88aa902b75b8b0b2ee21d86
AgentTesla
68126cb20ca18cd68cefe085cf26221ed4b17eaa8913760679bf23851c4f884e
AgentTesla
6f1ed81b6af31a6e858609bbbdf8cc857b0f203c20ac60a695128f42589f73b8
AgentTesla
76ef6a87b0778c794c0273fa7e969754d3cb9dc5d9fcf5a1f442d9d1dad076d5
AgentTesla
ad69e7f10266ceca6bf4a854570ab0c4017bd35ed8d63499f7567b393d2dc410
AgentTesla
e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2
AgentTesla
+ 4'120 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla credential_access discovery execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240903-rdtxjazekf/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Executes dropped EXE
Loads dropped DLL
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
Credentials from Password Stores: Credentials from Web Browsers
AgentTesla
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/11706031-90b3-4be4-bd28-5906d8ed1962
Unpacked files
SH256 hash:
45c7b64a55dca23ee1239649e03a7c361813dbcfc2a0817b0d8e94c907d6ed4b
MD5 hash:
fb1bc19121c4e190d83672bc71b493f0
SHA1 hash:
c3488b969ba578e28ee360be24b6416425a224a0
Link:
https://www.unpac.me/results/dc23ca71-8866-4151-ac01-f992c99684b1/
SH256 hash:
06620abd7bb3394d4636a93377ad9da0008487c7a17319591c684285d6df2e48
MD5 hash:
398ca7577bae5e9570429b7034933276
SHA1 hash:
ad4e13cff17151504c520e5faf4eccc16c4075e0
Link:
https://www.unpac.me/results/dc23ca71-8866-4151-ac01-f992c99684b1/
SH256 hash:
053eb54af528f36c930565abc0ae8888dc8ea7c8740dcb25e02cad88a26dfe34
MD5 hash:
cae505e91242b082fefcf521b25d02f5
SHA1 hash:
049fe643f4807770cee9d8163bd739763a693a8e
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/dc23ca71-8866-4151-ac01-f992c99684b1/
Parent samples :
5cb0f476845eb029a8f7799ed1adb8b819587ff22e79732c29cfc452b5f8759d
97d29ffc3556069c807b5c0ae2e2b109ae329feafc912d64f8b7f437bea47d84
c64982b92e0301c05afb9b06a190376f10dfee032a384500692838873b8382fc
257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
9ea0a0d830d560e34c04870341fac3631ded5d423ec8104fe3d56b62ff0668ac
053eb54af528f36c930565abc0ae8888dc8ea7c8740dcb25e02cad88a26dfe34
SH256 hash:
257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
MD5 hash:
a3ef821627916a0e159c90de54b792c8
SHA1 hash:
8465ecd7f2020c1fc24b576c938cf349f157d0e7
Link:
https://www.unpac.me/results/dc23ca71-8866-4151-ac01-f992c99684b1/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/257e99de5649/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc

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: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.

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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