MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73
SHA3-384 hash: 3c3bdfa82f4950e9ae70974fc2cfb86bdbe16b0902809e09b17ae00a8998a571d9019259d20aab8bd6aca65762d6a97f
SHA1 hash: 404869a747383b4d05fdf600f11a88bd5908108f
MD5 hash: 92ffb9bac9ada8e6ab23fea4063b1190
humanhash: eleven-lion-ohio-east
File name:20240600EFT002.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:654'336 bytes
First seen:2024-06-17 13:35:22 UTC
Last seen:2024-06-24 11:51:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:iG/iFIsPAb/z/z+95i+GO8TGkbfCwF6uMazd+vfxjvrT7EJs1sWaAhRI/:NkIKyb7+9slb6wMqzeN3w/6RI
Threatray 3'904 similar samples on MalwareBazaar
TLSH T188D4234873641A4BD9FA8BBE5B7A402083FF67A24155E7CCCC492D8E5AE27484713FE1
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
315
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73.exe
Verdict:
Malicious activity
Analysis date:
2024-06-17 14:17:32 UTC
Tags:
evasion stealer agenttesla exfiltration smtp
Link:
https://app.any.run/tasks/1d30ccc8-ea30-4b5d-be04-eab4f2045d06

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.2751.22699.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66703d0d0f8138dd4eab7b63win7simulatehigh_evasion
Tags:
Generic Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Setting a keyboard event handler
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/66703bc69fd5f9d5920ffbdd/reports/6a78a146-e0fa-448a-8df3-00fdb21171c5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73
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/bc03455f-c6d4-4ecc-93f9-d7c9bd4ad729
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1458357
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Installs a global keyboard hook
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)
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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1458357 Sample: 20240600EFT002.exe Startdate: 17/06/2024 Architecture: WINDOWS Score: 100 32 us2.smtp.mailhostbox.com 2->32 34 smtp.vhscrew.com 2->34 36 api.ipify.org 2->36 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 9 other signatures 2->60 7 20240600EFT002.exe 3 2->7         started        11 YZbrmyt.exe 3 2->11         started        13 YZbrmyt.exe 2 2->13         started        signatures3 process4 file5 30 C:\Users\user\...\20240600EFT002.exe.log, ASCII 7->30 dropped 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->62 64 Injects a PE file into a foreign processes 7->64 15 20240600EFT002.exe 15 5 7->15         started        66 Antivirus detection for dropped file 11->66 68 Multi AV Scanner detection for dropped file 11->68 70 Machine Learning detection for dropped file 11->70 20 YZbrmyt.exe 14 2 11->20         started        22 YZbrmyt.exe 11->22         started        24 YZbrmyt.exe 2 13->24         started        signatures6 process7 dnsIp8 38 us2.smtp.mailhostbox.com 208.91.199.224, 49710, 49712, 49715 PUBLIC-DOMAIN-REGISTRYUS United States 15->38 40 api.ipify.org 104.26.13.205, 443, 49708, 49714 CLOUDFLARENETUS United States 15->40 26 C:\Users\user\AppData\Roaming\...\YZbrmyt.exe, PE32 15->26 dropped 28 C:\Users\user\...\YZbrmyt.exe:Zone.Identifier, ASCII 15->28 dropped 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->42 44 Tries to steal Mail credentials (via file / registry access) 15->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->46 48 Tries to harvest and steal ftp login credentials 24->48 50 Tries to harvest and steal browser information (history, passwords, etc) 24->50 52 Installs a global keyboard hook 24->52 file9 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-06-17 06:25:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
13 of 38 (34.21%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rydeloexkw6dmedvxliambtdcya3r6efdx7yqdfkaxqzwdoml5zq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
5411cdb506aeb34244854a919278dd88877f92e0a97561aa50d11d8b0dfb86b8
AgentTesla
57826299a05b5202efad57e0b8580ffad6d90feace9734a5aceb3a0d945fbeee
AgentTesla
605ccfa010e2d945154cfb395a6a4855d00b710f447dbad889eb0415bb9710af
AgentTesla
7b22a626e9532c63ef451eab984601c0abf4248ff689624c3900581dbf6fd292
AgentTesla
8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670
AgentTesla
+ 3'894 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/240617-qv8xcatajh/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
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:
899a04d13f8b244ee734c8772197411b4c1b53e13387f340ddea0c6dd364953e
MD5 hash:
509981927ae4df6ce8b9097efb27dc10
SHA1 hash:
ff9a882b16dac4e0a8ca58483a0f011110f5c47a
Link:
https://www.unpac.me/results/26026f7b-88b2-4210-ba2d-0435fbfcc1a0/
SH256 hash:
c4b12039bfed4c8bbb9d1376004da60480e49a379a84c9e60565bbd5caef07b2
MD5 hash:
144f7fcaaa3b81b0a3706203a7f1add8
SHA1 hash:
4bc14913fd448b4a2664e1e9ba664a1c6e9a9194
Link:
https://www.unpac.me/results/26026f7b-88b2-4210-ba2d-0435fbfcc1a0/
SH256 hash:
ecf1257cb2839319c722daf5323ba2ed7060368b46f84610b6b6823323297826
MD5 hash:
cba51dcdec84ac14ce1eaf2ede86f28b
SHA1 hash:
2e77e64525600817d96b4d9c497135c989e608ee
Link:
https://www.unpac.me/results/26026f7b-88b2-4210-ba2d-0435fbfcc1a0/
SH256 hash:
f94fb4532c1bd66a6418d75c5a12cd378496dc36d0ce85eef692aaa2d4b3354b
MD5 hash:
748de75df818719b4a2ee7a74fbd2849
SHA1 hash:
28f61387fd0b27b08f96a31f97cf2790b6405ad3
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/26026f7b-88b2-4210-ba2d-0435fbfcc1a0/
SH256 hash:
8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73
MD5 hash:
92ffb9bac9ada8e6ab23fea4063b1190
SHA1 hash:
404869a747383b4d05fdf600f11a88bd5908108f
Link:
https://www.unpac.me/results/26026f7b-88b2-4210-ba2d-0435fbfcc1a0/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8e0645b89755/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/8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73

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: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_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 8e0645b89755bc361075bad00606631601b8f8851dff880caa05e19b0dcc5f73

(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

Comments