MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a19e8babf5efa761ff04475ae8db2e359e1d74f19ebb81cb59c57aa07ab9390e. 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 19 File information Comments

SHA256 hash: a19e8babf5efa761ff04475ae8db2e359e1d74f19ebb81cb59c57aa07ab9390e
SHA3-384 hash: 6cc0fe01d2b12dec0e64ab333cb870aa26f95473c578f1b45237cdafb618656a2071dfbe5a3fbb9d1af00cccd6258820
SHA1 hash: a2bec0f3c99c9197443bc161233ec19678172952
MD5 hash: 8dcde8d3e5361e46c9a0eb3a7c559b6a
humanhash: seventeen-solar-jersey-potato
File name:SPECIFICATIONS.exe
Download: download sample
Signature AgentTesla
File size:2'637'844 bytes
First seen:2024-06-25 06:27:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:l7d5M1YVb+stU0vbzqD7wngYZW34lM5G7KSvicVcDD:K1YU1UbzMOyU69eVcDD
Threatray 3 similar samples on MalwareBazaar
TLSH T1CCC5BC40B2678E07FC919072D1D13AF129FCAD9336F6A18FDF4A3D15183117D2AA9AB4
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 31f09c92929cf031 (3 x DarkCloud, 2 x AgentTesla, 1 x SnakeKeylogger)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
347
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
a19e8babf5efa761ff04475ae8db2e359e1d74f19ebb81cb59c57aa07ab9390e.exe
Verdict:
Malicious activity
Analysis date:
2024-06-25 06:33:25 UTC
Tags:
evasion agenttesla stealer ftp exfiltration

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
Encryption Generic Infostealer Network Gensteal
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
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
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Creating a window
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:
overlay
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
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)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1462172 Sample: SPECIFICATIONS.exe Startdate: 25/06/2024 Architecture: WINDOWS Score: 100 29 ftp.ercolina-usa.com 2->29 31 ercolina-usa.com 2->31 33 api.ipify.org 2->33 47 Snort IDS alert for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 9 other signatures 2->53 7 SPECIFICATIONS.exe 2 2->7         started        10 newapp.exe 4 2->10         started        12 newapp.exe 3 2->12         started        signatures3 process4 signatures5 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->55 57 Writes to foreign memory regions 7->57 59 Allocates memory in foreign processes 7->59 61 Injects a PE file into a foreign processes 7->61 14 InstallUtil.exe 15 4 7->14         started        19 WerFault.exe 19 16 7->19         started        21 InstallUtil.exe 7->21         started        23 conhost.exe 10->23         started        25 conhost.exe 12->25         started        process6 dnsIp7 35 ercolina-usa.com 192.254.225.136, 21, 30919, 32945 UNIFIEDLAYER-AS-1US United States 14->35 37 api.ipify.org 104.26.12.205, 443, 49706 CLOUDFLARENETUS United States 14->37 27 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 14->27 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->41 43 Tries to steal Mail credentials (via file / registry access) 14->43 45 4 other signatures 14->45 file8 signatures9
Threat name:
Win64.Spyware.Negasteal
Status:
Malicious
First seen:
2024-06-25 02:14:25 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
7
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
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
AgentTesla
Unpacked files
SH256 hash:
a19e8babf5efa761ff04475ae8db2e359e1d74f19ebb81cb59c57aa07ab9390e
MD5 hash:
8dcde8d3e5361e46c9a0eb3a7c559b6a
SHA1 hash:
a2bec0f3c99c9197443bc161233ec19678172952
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTeslaV2
Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:MALWARE_Win_AgentTeslaV2
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_808f680e
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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 a19e8babf5efa761ff04475ae8db2e359e1d74f19ebb81cb59c57aa07ab9390e

(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 (GUARD_CF)high

Comments