MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 19984d5d61f312c7e0ed20f4b4f5f2991cabc5dfd44c2a089416783791af843b. 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 6 File information Comments

SHA256 hash: 19984d5d61f312c7e0ed20f4b4f5f2991cabc5dfd44c2a089416783791af843b
SHA3-384 hash: 043128deae64d53130f4ed1e08094ba3cbcb8ce2cb5ceda6721a4d093dad6c49bdfe5803837d1ca34573af9612868b95
SHA1 hash: b5a9357a6c39da2eb087fcbebc5e7bd592c835ec
MD5 hash: 91af2fe6fa29eb55aa875cc93aa6c067
humanhash: summer-whiskey-blossom-four
File name:INVOICE.PDF.exe
Download: download sample
Signature AgentTesla
File size:890'376 bytes
First seen:2024-03-04 10:38:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:2l3ZRj+umahHDuJslxEr69SB3LT0dJXwCk:y3ZRiumuqurEesB3gRwF
Threatray 327 similar samples on MalwareBazaar
TLSH T11815F1A612FC4BAAF11E4A79D0302053DF32B2677493E744BACE62B55FA5F900917F06
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)
File icon (PE):PE icon
dhash icon 1071f0e8e8e87130 (2 x AgentTesla, 1 x Formbook)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
321
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
19984d5d61f312c7e0ed20f4b4f5f2991cabc5dfd44c2a089416783791af843b.exe
Verdict:
Malicious activity
Analysis date:
2024-03-04 10:50:08 UTC
Tags:
stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Creating a file in the %AppData% subdirectories
Reading critical registry keys
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
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
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.evad
Score:
100 / 100
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
Contains functionality to log keystrokes (.Net Source)
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
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)
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
Sigma detected: Suspicious Double Extension File Execution
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 an obfuscated file name to hide its real file extension (double extension)
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1402449 Sample: INVOICE.PDF.exe Startdate: 04/03/2024 Architecture: WINDOWS Score: 100 52 mail.unitech-co.com.tr 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Sigma detected: Scheduled temp file as task from temp location 2->58 60 13 other signatures 2->60 8 INVOICE.PDF.exe 7 2->8         started        12 agNOCkv.exe 5 2->12         started        14 boqXv.exe 2->14         started        16 boqXv.exe 2->16         started        signatures3 process4 file5 48 C:\Users\user\AppData\Roaming\agNOCkv.exe, PE32 8->48 dropped 50 C:\Users\user\AppData\Local\Temp\tmp1E9.tmp, XML 8->50 dropped 72 Uses schtasks.exe or at.exe to add and modify task schedules 8->72 74 Writes to foreign memory regions 8->74 76 Allocates memory in foreign processes 8->76 78 Adds a directory exclusion to Windows Defender 8->78 18 RegSvcs.exe 1 4 8->18         started        22 powershell.exe 23 8->22         started        24 powershell.exe 23 8->24         started        26 schtasks.exe 1 8->26         started        80 Multi AV Scanner detection for dropped file 12->80 82 Machine Learning detection for dropped file 12->82 84 Injects a PE file into a foreign processes 12->84 28 RegSvcs.exe 12->28         started        30 schtasks.exe 12->30         started        32 conhost.exe 14->32         started        34 conhost.exe 16->34         started        signatures6 process7 file8 46 C:\Users\user\AppData\Roaming\...\boqXv.exe, PE32 18->46 dropped 62 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->62 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->64 66 Tries to steal Mail credentials (via file / registry access) 18->66 36 conhost.exe 22->36         started        38 WmiPrvSE.exe 22->38         started        40 conhost.exe 24->40         started        42 conhost.exe 26->42         started        68 Tries to harvest and steal browser information (history, passwords, etc) 28->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->70 44 conhost.exe 30->44         started        signatures9 process10
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2024-03-04 04:06:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
01220d152bb7cdb945dad5e0e42ec4620ceaa77b30a6699b139da00aeb6fe6fe
MD5 hash:
71fbe89b29c46ee4f9c2d9652bd5ff56
SHA1 hash:
c31d2f9041acc9b1c1dc41cb76a6fb80f0ffd23d
SH256 hash:
c10c9b0882bac6f788f48b4dabe3291b14e639e650f2b9fcb0bc174ac92ae02b
MD5 hash:
7c7fb6daa78beb69128991ff893143ed
SHA1 hash:
c01bb99984b12b84129db80eae1d5d8341a358e2
SH256 hash:
7e3cca4f44aae181a230e7c009d6e82124977410613568c7de948f037bcbfb71
MD5 hash:
20014d6c3561702764c2371200d7a9b5
SHA1 hash:
88ed66c8b20435472c25b2bd91d5925c60e68e4b
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
6e7afb108b8c6a3e14517ee230231348566867a0689e3abea69b325945c609f6
MD5 hash:
43232150e7540f4394c1918f887e3a17
SHA1 hash:
6129773caf030f861aef0cee8abfe3389bde2018
SH256 hash:
19984d5d61f312c7e0ed20f4b4f5f2991cabc5dfd44c2a089416783791af843b
MD5 hash:
91af2fe6fa29eb55aa875cc93aa6c067
SHA1 hash:
b5a9357a6c39da2eb087fcbebc5e7bd592c835ec
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
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 19984d5d61f312c7e0ed20f4b4f5f2991cabc5dfd44c2a089416783791af843b

(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