MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43. 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: 17


Intelligence 17 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43
SHA3-384 hash: 69a72e6b078760bd6c69af35876e598aff50e78415df7ca694810ceaad94a49d99ebd96ee4716a5aae4dbf820429e117
SHA1 hash: 182f3f8dfc90c79e2e88b88ebffe735f9c408023
MD5 hash: dbcfa3e5a5034f917af5f73a3478a558
humanhash: fanta-massachusetts-white-summer
File name:z16DHLPSZR00000336-EB.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:852'992 bytes
First seen:2023-12-04 14:45:56 UTC
Last seen:2023-12-04 16:27:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'652 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 24576:gLek+pJQV3VYTkU+8jGuNOMmUFkfI2vz:ACJU8/Gu8wcI2
Threatray 1'920 similar samples on MalwareBazaar
TLSH T12305D00561F65F1AD47A67F48294160003F73B99A13BE34C6ECAE0D72E71B020E5BB6B
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
361
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
z16DHLPSZR00000336-EB.exe
Verdict:
Malicious activity
Analysis date:
2023-12-04 14:46:47 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/d267c5a4-6965-46f6-bdd0-1c0ad729c967

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/462390/
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.24899.7140.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/656de658da3178d99cd70343/reports/7c1b8e54-069b-4947-a18a-b765f8e23b9a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43
Result
Verdict:
MALICIOUS
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d8c17dfe-a9b6-4682-be87-5c2807ca3d13
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1353259
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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 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)
Tries to harvest and steal browser information (history, passwords, etc)
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: 1353259 Sample: z16DHLPSZR00000336-EB.exe Startdate: 04/12/2023 Architecture: WINDOWS Score: 100 35 us2.smtp.mailhostbox.com 2->35 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 9 other signatures 2->53 7 z16DHLPSZR00000336-EB.exe 3 2->7         started        10 Micosoft Excel 2023.exe 2->10         started        12 Micosoft Excel 2023.exe 3 2->12         started        signatures3 process4 signatures5 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->55 57 Injects a PE file into a foreign processes 7->57 14 z16DHLPSZR00000336-EB.exe 1 5 7->14         started        19 SIHClient.exe 6 7->19         started        21 z16DHLPSZR00000336-EB.exe 7->21         started        29 2 other processes 7->29 23 Micosoft Excel 2023.exe 10->23         started        25 Micosoft Excel 2023.exe 2 12->25         started        27 Micosoft Excel 2023.exe 12->27         started        process6 dnsIp7 37 us2.smtp.mailhostbox.com 208.91.199.225, 49732, 49735, 49741 PUBLIC-DOMAIN-REGISTRYUS United States 14->37 31 C:\Users\user\...\Micosoft Excel 2023.exe, PE32 14->31 dropped 33 Micosoft Excel 2023.exe:Zone.Identifier, ASCII 14->33 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Tries to steal Mail credentials (via file / registry access) 14->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->43 45 Tries to harvest and steal browser information (history, passwords, etc) 23->45 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-12-04 14:08:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5sfrztt2qshipifjt4uf6xcfp26ro4wlbtyj5bmj2ms3o7pnzvbq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
2091a13a7a8053bf245ba38b61cbbfc4b383f7503a121e178fb250112f99bd44
AgentTesla
4a7a6ec0cd99d2da72908fb02039f53ccce070f1d4562c9cc7e16b035bc963c8
AgentTesla
5e5350a474c7fcc4782d8fb212f0b43aeeb7c144feae45f7fa37544110650768
AgentTesla
6eaee93f96963100221bee90dc15dc6d046951a7ce0a4aafe3ded7bbffa1b0e3
AgentTesla
8c9e69c484e159acd88a9c50d70db9f104d9cd804ac6855d657c077c54faa4ac
AgentTesla
ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43
AgentTesla
+ 1'910 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/231204-r5ab7sbh54/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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:
0e632a46a8f54a2d0d277035b83df6e626ccdbee60b422f675f93f863e58666b
MD5 hash:
b306e84f5926d3fd89812e3737ebde95
SHA1 hash:
592f9b8fabacdd9480cc89d90254b1c63adcece2
Link:
https://www.unpac.me/results/c90d4a36-e48a-42c1-950d-a1f9d8fe4f35/
SH256 hash:
4ea24f918dbba7017a2cbd526de0db35a871af72bdc337da972c3e04b06cb7eb
MD5 hash:
5ed689a2fd6fbb968adec2622b67e69a
SHA1 hash:
4c3c211504d8fea17a24d9bf00114cf1842655af
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/c90d4a36-e48a-42c1-950d-a1f9d8fe4f35/
Parent samples :
6a5c9a20549cf4dcbd4453faaadfebdccd4b7114b962afee485c658d18b2a1b6
9b04de1a758862073abec08019f6ad3b4671768a916335208504a09a168ef4de
b85378cb9d057f26f202448043d2b863114d4833dee228c933f677ffe69da6fe
5d8c0938cae4b390ad96caae4ebbd81e488dff7210646eb5917455e3d098aa57
cab0d981559ec627b28ba927840774c66ccba4c7cea401d748ac398f0ab39c85
6eaee93f96963100221bee90dc15dc6d046951a7ce0a4aafe3ded7bbffa1b0e3
ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43
SH256 hash:
03fe3262839e7268ba743a04303873ddd9a996c6e8dd201a8f41fe1aa1e0b9ff
MD5 hash:
f9bae833dc451a150a99283415481b3b
SHA1 hash:
46fe11a881f786cc4abc83321ee0a760e8927c64
Link:
https://www.unpac.me/results/c90d4a36-e48a-42c1-950d-a1f9d8fe4f35/
SH256 hash:
c34dfbc328de247d25d670c3b7853f1dddd2ec2607d5dbb0480743b45a15ea64
MD5 hash:
85b87384830444e6ab86a4a692ce96cc
SHA1 hash:
0d7d4614cf31d27e68ebf48e76fb1d308cc08152
Link:
https://www.unpac.me/results/c90d4a36-e48a-42c1-950d-a1f9d8fe4f35/
SH256 hash:
ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43
MD5 hash:
dbcfa3e5a5034f917af5f73a3478a558
SHA1 hash:
182f3f8dfc90c79e2e88b88ebffe735f9c408023
Link:
https://www.unpac.me/results/c90d4a36-e48a-42c1-950d-a1f9d8fe4f35/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ec8b1cce7a84/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/ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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

File information

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

Malspam

AgentTesla

Executable exe ec8b1cce7a848e87a0a99f285f5c457ebd1772cb0cf09e8589d325b77dedcd43

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/462390/

Comments