MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a13c67016d8ebd9f71b554001b394511b8dbe7f67bbed30d68907eec0e2be987. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash: a13c67016d8ebd9f71b554001b394511b8dbe7f67bbed30d68907eec0e2be987
SHA3-384 hash: f6504662fbebc3a08d58dc1c55daabb8574462b784ee8924a8077c0753a92b506636eb07eb9dc6100411ccc7989cf82f
SHA1 hash: e05b484cf3b43b6007582646975c5ec3e4e01449
MD5 hash: e22683916de558eb63a832d4e742aa1c
humanhash: edward-undress-jersey-carolina
File name:RFQ#AWS121100149 (2).exe
Download: download sample
Signature AgentTesla
File size:1'093'120 bytes
First seen:2022-02-14 15:11:14 UTC
Last seen:2022-02-21 09:06:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:D9OBIILiWw0BHaN+/eAtlkph5DOF8jXtEyfi:DMGxWw0tgq6Do
Threatray 15'106 similar samples on MalwareBazaar
TLSH T1A135AD49375176AFC85BC97699A45D20FB70A46A530BD333A05326ECAC4E69BCF300F6
File icon (PE):PE icon
dhash icon f8a4b2b4b4b4b2c0 (20 x AgentTesla, 8 x Loki, 6 x Formbook)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
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 process from a recently created file
Creating a file in the %temp% directory
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
UNKNOWN
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.adwa.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 571943 Sample: RFQ#AWS121100149 (2).exe Startdate: 14/02/2022 Architecture: WINDOWS Score: 100 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for dropped file 2->63 65 17 other signatures 2->65 7 RFQ#AWS121100149 (2).exe 7 2->7         started        11 tKZVPq.exe 2->11         started        13 tKZVPq.exe 2->13         started        process3 file4 41 C:\Users\user\AppData\Roaming\BxZYrYxc.exe, PE32 7->41 dropped 43 C:\Users\...\BxZYrYxc.exe:Zone.Identifier, ASCII 7->43 dropped 45 C:\Users\user\AppData\Local\...\tmp5008.tmp, XML 7->45 dropped 47 C:\Users\...\RFQ#AWS121100149 (2).exe.log, ASCII 7->47 dropped 67 Adds a directory exclusion to Windows Defender 7->67 69 Injects a PE file into a foreign processes 7->69 15 RFQ#AWS121100149 (2).exe 7->15         started        19 powershell.exe 24 7->19         started        21 powershell.exe 25 7->21         started        23 schtasks.exe 1 7->23         started        71 Antivirus detection for dropped file 11->71 73 Multi AV Scanner detection for dropped file 11->73 75 Detected unpacking (changes PE section rights) 11->75 77 2 other signatures 11->77 25 schtasks.exe 11->25         started        27 tKZVPq.exe 11->27         started        29 schtasks.exe 13->29         started        signatures5 process6 file7 49 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 15->49 dropped 51 C:\Windows\System32\drivers\etc\hosts, ASCII 15->51 dropped 53 C:\Users\user\...\tKZVPq.exe:Zone.Identifier, ASCII 15->53 dropped 55 Modifies the hosts file 15->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->57 31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        35 conhost.exe 23->35         started        37 conhost.exe 25->37         started        39 conhost.exe 29->39         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-02-14 10:57:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
3976ad3335c79af838a3737ffd8c3fb1fe7359ed9c1139298b64f1a3c35d4fd4
MD5 hash:
82c9263e4c45fc4276f3ecf50d3b5a78
SHA1 hash:
e3e2aaf4a18be68dcbdffe8136ae0915a657536b
SH256 hash:
3ca74eb4ce4c2c5604dc298949ae47996d93063abfde0682d689205561d17d44
MD5 hash:
4e35b541f3d9162d0ac93d336df67779
SHA1 hash:
bb9e65761186806d4bada659e9d5db0c070501d4
SH256 hash:
f81cfa9e7e5104df28bb484f54ea03519377813e155e38c9b45a749e1dd373bb
MD5 hash:
309991c3ecb6ecd41b86ad70c050fd56
SHA1 hash:
87eff49638e2ae0eec5e65f1bbab4b446bad5e83
SH256 hash:
721bb5a5ab46c02ad91c1391c700eff49d3a09ca03787eba4322a4fe04bbfacb
MD5 hash:
e734b37519720faea3980d649bc2d500
SHA1 hash:
31cef85761cf2898bd2cd6767ac27b5adac70846
SH256 hash:
a13c67016d8ebd9f71b554001b394511b8dbe7f67bbed30d68907eec0e2be987
MD5 hash:
e22683916de558eb63a832d4e742aa1c
SHA1 hash:
e05b484cf3b43b6007582646975c5ec3e4e01449
Malware family:
Agent Tesla v3
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:pe_imphash
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 a13c67016d8ebd9f71b554001b394511b8dbe7f67bbed30d68907eec0e2be987

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments