MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546. 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: 18


Intelligence 18 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546
SHA3-384 hash: d499d310d671a59a2404d6e958508032474711913375f6b925dac4cd179aff4467a4023c87be7b9d869ba704191b3f02
SHA1 hash: b0f59ec2bd6e647cfe2b1fa60ae1f22dd5fc9805
MD5 hash: 242e286671beb6950ac8cbcdc2625378
humanhash: vermont-lemon-ohio-leopard
File name:z1proformainvoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:721'920 bytes
First seen:2024-03-06 10:13:34 UTC
Last seen:2024-03-06 11:26:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:wR7/jjDwjiZJjl6TwsfGPZBsgW46uyFtA8BHQubsrxLR1klT2OW1gBv8sjyIWUa6:wR/jIjUlTBPbsgeuyFikQ6s+6UEOyNUL
Threatray 419 similar samples on MalwareBazaar
TLSH T11EE4F114BA92AD27D1BD04F8047215C083F48AAB346AE7C98DDB25F933EDBC7169254F
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 FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
330
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546.exe
Verdict:
Malicious activity
Analysis date:
2024-03-06 10:19:05 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/d9973f90-9926-41ed-9bf7-c89e2b3fad95

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65e841ec7d778a9eef6782f6/reports/4be9fc70-a0e5-4207-ad90-50c810a608fe/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546
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/0a7d25bf-89ca-47be-ab0a-098c1da51df5
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1403932
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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 domain / URL
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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)
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: 1403932 Sample: z1proformainvoice.exe Startdate: 06/03/2024 Architecture: WINDOWS Score: 100 53 mail.wasstech.com 2->53 55 api.ipify.org 2->55 61 Multi AV Scanner detection for domain / URL 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 14 other signatures 2->67 8 z1proformainvoice.exe 7 2->8         started        12 GadnzCwBn.exe 5 2->12         started        14 LxXKQ.exe 2->14         started        16 LxXKQ.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\RoamingbehaviorgraphadnzCwBn.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\Temp\tmpE73.tmp, XML 8->51 dropped 83 Uses schtasks.exe or at.exe to add and modify task schedules 8->83 85 Writes to foreign memory regions 8->85 87 Allocates memory in foreign processes 8->87 95 2 other signatures 8->95 18 RegSvcs.exe 16 4 8->18         started        23 powershell.exe 23 8->23         started        25 powershell.exe 23 8->25         started        27 schtasks.exe 1 8->27         started        89 Antivirus detection for dropped file 12->89 91 Multi AV Scanner detection for dropped file 12->91 93 Machine Learning detection for dropped file 12->93 29 RegSvcs.exe 12->29         started        31 schtasks.exe 12->31         started        33 conhost.exe 14->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 57 mail.wasstech.com 204.93.196.181, 49703, 49707, 49708 SERVERCENTRALUS United States 18->57 59 api.ipify.org 104.26.13.205, 443, 49701, 49705 CLOUDFLARENETUS United States 18->59 47 C:\Users\user\AppData\Roaming\...\LxXKQ.exe, PE32 18->47 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->69 71 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->71 73 Tries to steal Mail credentials (via file / registry access) 18->73 75 Contains functionality to register a low level keyboard hook 18->75 37 WmiPrvSE.exe 23->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        77 Tries to harvest and steal browser information (history, passwords, etc) 29->77 79 Hides that the sample has been downloaded from the Internet (zone.identifier) 29->79 81 Installs a global keyboard hook 29->81 45 conhost.exe 31->45         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-03-06 08:51:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=c3r2qks4ackfg6jgz5jin7obb7pppsszqt7wgaevqijfvdx2cvda._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
36870ed67d32b8398243d77c47975603750cc92e9821db555b8e2b2df4d3d3b6
AgentTesla
8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa
AgentTesla
b224c93b27774068d0c1a5e0ba7e744ff382c96ef02b2626fd434d1686f35e3a
AgentTesla
+ 409 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/240306-l9mv7shh82/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
a1b7c8bc5aabf743a807768c88465c97ab7631616c59991ccce409815b397210
MD5 hash:
2a880038635702325601a0401cfa48fb
SHA1 hash:
f0a746a911d0bf13e0d0e8de17b84fe103c3b976
Link:
https://www.unpac.me/results/87085952-baad-4aa0-95e4-b9b33c56a569/
SH256 hash:
c10c9b0882bac6f788f48b4dabe3291b14e639e650f2b9fcb0bc174ac92ae02b
MD5 hash:
7c7fb6daa78beb69128991ff893143ed
SHA1 hash:
c01bb99984b12b84129db80eae1d5d8341a358e2
Link:
https://www.unpac.me/results/87085952-baad-4aa0-95e4-b9b33c56a569/
SH256 hash:
f8f036614e94fd47e3b0ff7d135d9505962013ba33f717b620e19bd78166c07a
MD5 hash:
75398726191c50eb63119b205469bbbb
SHA1 hash:
bc423fca6f50f9dfa2c678334c9a68e380f19aee
Link:
https://www.unpac.me/results/87085952-baad-4aa0-95e4-b9b33c56a569/
SH256 hash:
7de3f2de26af6e70c8c1fc9359ae1af98d1e6fe34297cc71a2d9f57f91ac86d8
MD5 hash:
f51afa9b558049e421edaa40ff9f4b1a
SHA1 hash:
5be13d0681ef8614bfb584997ff75f39d7b680fd
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/87085952-baad-4aa0-95e4-b9b33c56a569/
SH256 hash:
16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546
MD5 hash:
242e286671beb6950ac8cbcdc2625378
SHA1 hash:
b0f59ec2bd6e647cfe2b1fa60ae1f22dd5fc9805
Link:
https://www.unpac.me/results/87085952-baad-4aa0-95e4-b9b33c56a569/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/16e3a82a5c00/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546

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: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_9a8dc290
Create hunting rule
Author:Elastic Security
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 16e3a82a5c0094537926cf5286fdc10fdef7ca5984ff63009582125a8efa1546

(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