MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02
SHA3-384 hash: 163faa4fb72a82025021c2990a4b3176aaaa115a77f0747ac269a09498fe5d0c8fdf46012f1f303eecf1b9ae2de832af
SHA1 hash: 06c58c95fee44427d8036d5c1d94cca011b42041
MD5 hash: d01bcce3bb155d9306cd7a391d2df328
humanhash: glucose-jupiter-single-minnesota
File name:D3yTM8QCHxeFsre.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:679'936 bytes
First seen:2024-06-25 13:25:39 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:jNsywtNFAUHvQ0wHQQ+gly37E7ZkY/dZwkXrwcORCfZLj:WBAuvdwwj37qaY/DwkXrwcORM5j
Threatray 742 similar samples on MalwareBazaar
TLSH T14FE412643BA4CF67E57C5BF10228588127FB660FA0A0EA449DD270E754FAF858771E0B
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)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
353
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02.exe
Verdict:
Malicious activity
Analysis date:
2024-06-25 13:27:32 UTC
Tags:
smtp evasion agenttesla stealer
Link:
https://app.any.run/tasks/00abbe2c-d880-4075-a43a-c43934b01af9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2936.19137.22066.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667ac5a25fec1bb84f85cd0ewin7simulatehigh_evasion
Tags:
Generic Network Static Gensteal
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/667ac571ef9fdf64aa6eefff/reports/9fb764bd-f77b-4c16-8c25-e6c998fe670f/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02
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/ce6f6221-92fc-4d7b-a118-37dc4efa51f1
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1462422
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Allocates memory in foreign processes
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 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)
Sigma detected: MSBuild connects to smtp port
Sigma detected: Silenttrinity Stager Msbuild Activity
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1462422 Sample: D3yTM8QCHxeFsre.exe Startdate: 25/06/2024 Architecture: WINDOWS Score: 100 28 mail.chachitos.com.mx 2->28 30 api.ipify.org 2->30 32 3 other IPs or domains 2->32 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 8 other signatures 2->52 7 D3yTM8QCHxeFsre.exe 3 2->7         started        11 My App.exe 4 2->11         started        13 My App.exe 3 2->13         started        signatures3 process4 file5 26 C:\Users\user\...\D3yTM8QCHxeFsre.exe.log, ASCII 7->26 dropped 54 Writes to foreign memory regions 7->54 56 Allocates memory in foreign processes 7->56 58 Injects a PE file into a foreign processes 7->58 15 MSBuild.exe 15 4 7->15         started        20 conhost.exe 11->20         started        22 conhost.exe 13->22         started        signatures6 process7 dnsIp8 34 mail.chachitos.com.mx 106.0.62.82, 49711, 49722, 49723 TOMATOWEB-BDTomatoWebPvtLimitedBD Bangladesh 15->34 36 api.ipify.org 104.26.13.205, 443, 49709 CLOUDFLARENETUS United States 15->36 24 C:\Users\user\AppData\Roaming\...\My App.exe, PE32 15->24 dropped 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->38 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->40 42 Tries to steal Mail credentials (via file / registry access) 15->42 44 3 other signatures 15->44 file9 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-25 07:23:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 38 (47.37%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iceyiapvu6cm5ieblczcwwqxym3zdcbonr6htl6nevuqfanxhqba._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
87c68756481a2bbd821e8ac224087c5626ffdc1e05eaaeff506bb0b5148bba0b
AgentTesla
88ee50dbfee90121de2f56cbb6fb8e23384f2423a0598a45147fe08f6503cb3b
AgentTesla
df42aed98863b49a6f208ef3181f08ba5014cc3192c3a406dad6def44e4a3c14
AgentTesla
e0e366834de34a6e93035842b46662c2b1b05d350c1218953f8faab632ead3ae
AgentTesla
+ 732 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/240625-qpg7fasdpa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
AgentTesla
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/db90ff7e-f076-4f75-a78f-54a5ee0aef3b
Unpacked files
SH256 hash:
f90c9c1768e95cfeaa4c0c57ef251571f001d4454d0ca80541b55a0d4182aa5e
MD5 hash:
b79e923379b3287e3e8a039e45609660
SHA1 hash:
c94284392ae41168e81b2452033613e651bb355e
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/ca1daf65-3f62-44cf-b801-2571e1f1747b/
Parent samples :
6be42d7e8ab6309248ec11a362abd79226faedf4f7b9a110094f303a166b2d93
b89f9ae90e40b950bb2c2205bcb70a42da20d12d6044dea8e4a57c099846f729
0c7a66057004515fbac9276dcdbfb9594afd4316ebe900a9ead8d40f6008078a
df42aed98863b49a6f208ef3181f08ba5014cc3192c3a406dad6def44e4a3c14
11bd38092d7eda3842cd5a5dc3fed362d5a5146ae6228a66b8ac2693e9a81279
07c90d353d736c2a8015e7f1e86d4492d697360132914e1379cff9f0e0385ccc
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40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02
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cb5c22f0aa405129ace6079f8dea8ac27fe89377db7adfffa3c539b59990d6be
6bddff781a97f7479e290a3fb3f34c681f98af9af4ab5dbfb14006bb63223522
018b23732bcac6e2ccc7d8130259b5085d10dafdac74737e1456b5f38ee2c81e
SH256 hash:
e20040e12cc58eebe81a665d8d01c5f63ce62a5d22d18d2eca8d96009530bb9c
MD5 hash:
7e21381bbc6ab56bca419b128fe5e754
SHA1 hash:
c3c6d0190eee6a164ca97dc2876fd82b0045eedf
Link:
https://www.unpac.me/results/ca1daf65-3f62-44cf-b801-2571e1f1747b/
SH256 hash:
0443dd288553be2e281e4958bff9fdbb1aef2a9bf6a7922f803510912ba257b4
MD5 hash:
d5d29830ecf162e851a578a6bf2a58b4
SHA1 hash:
80345ede67e19921487cdc08fbbe52f166cdd619
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/ca1daf65-3f62-44cf-b801-2571e1f1747b/
Parent samples :
6335b9e2204cdd0a2c6cbd39296aa6b409e46a3ec9ccec992423e65ddae20f30
fd05577096a8cf7e8a3955da0412f698199b9d2f53bea732351b7f2eb18819ce
40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02
def1c893697505de0b722e6fb3e516bad1c37f8e19599920714d29861639c274
044bd666c83a8a9550b7396dddc1a31947fed990842c57c112f7abb4e19ecf33
SH256 hash:
ecf1257cb2839319c722daf5323ba2ed7060368b46f84610b6b6823323297826
MD5 hash:
cba51dcdec84ac14ce1eaf2ede86f28b
SHA1 hash:
2e77e64525600817d96b4d9c497135c989e608ee
Link:
https://www.unpac.me/results/ca1daf65-3f62-44cf-b801-2571e1f1747b/
SH256 hash:
40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02
MD5 hash:
d01bcce3bb155d9306cd7a391d2df328
SHA1 hash:
06c58c95fee44427d8036d5c1d94cca011b42041
Link:
https://www.unpac.me/results/ca1daf65-3f62-44cf-b801-2571e1f1747b/
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/40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02

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_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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 40898401f5a784cea08158b22b5a17c33791882e6c7c79afcd25690281b73c02

(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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