MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 855a18ddf75958630f30453aaa7fb00163c2aa3c1ca2dd8b888240af48e9b8e4. 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: 4


Intelligence 4 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 855a18ddf75958630f30453aaa7fb00163c2aa3c1ca2dd8b888240af48e9b8e4
SHA3-384 hash: 6a26087abedd9be3df9860c0573b4151340acd921f9ef99a7fc15711d8f3432bd4e25ea6cf4a7767bc641723203f047e
SHA1 hash: b58ab9e947ffcd1574f15719f422c08e7cc9d1d0
MD5 hash: a8951d923f9cbcbc8ef14119e7eb976b
humanhash: mobile-ceiling-three-blue
File name:RFQ-09-4567-21.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'551'872 bytes
First seen:2020-05-01 11:00:42 UTC
Last seen:2020-05-01 11:56:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f52f1f062ba3dfd93d9913368e901b1 (5 x AgentTesla, 4 x Loki, 1 x NanoCore)
ssdeep 24576:o7A2wpdcqwkcIpNebONRdo/OCo4p04bp/qv81WBzA/m5wIvuC/R5MbI:o7rWPp5NRdo/OCo348BBfluC3M0
Threatray 11'023 similar samples on MalwareBazaar
TLSH D575F132F1E15C33C1672A3C9D0BA768AD39BEF06A6875866FE51D4C5F393813829193
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ns4.small-dns.com
Sending IP: 210.5.47.74
From: KIM, KWAN HO <hue@sfr.com.vn>
Reply-To: KIM,KWAN HO <hue@sfy.co.vn>
Subject: TKC VIET NAM - Product Inquiry 66483/12604
Attachment: RFQ-09-4567-21.PDF.gz (contains "RFQ-09-4567-21.exe")

AgentTesla SMTP exfil server:
mail.enmark.com.my:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
548
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Dropper.LokiBot-7744093-0
Create hunting rule

SecuriteInfo.com.Win32.Injector.ELSC.32193.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
Win32.Trojan.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-05-01 11:36:11 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
27 of 31 (87.10%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvnbrxpxlfmggdzqiu5ku75qafr4fkr4dsrn3c4iqjak6shjxdsa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
hawkeyekeylogger
Create hunting rule
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9d8ea8f49ab8d7cec94437483559937a79d6a4ce43273dd41e913c3d7d7f69c8
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a3cae0aae6bb5a0d6b4710e161925a315fd3ef4a5bfef88eea9fee94b35874d4
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a9abad7f4aace35de5651f437a83f47787606345d04ea63426db6a7a9b02ba5e
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+ 11'013 additional samples on MalwareBazaar
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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar

File information

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

Malspam

AgentTesla

gz 6600af7a2fde1d4054906c7cf64eca4a665a4cd129eb823b404af7d3be432502

AgentTesla

Executable exe 855a18ddf75958630f30453aaa7fb00163c2aa3c1ca2dd8b888240af48e9b8e4

(this sample)

  
Dropped by
MD5 37b0ec4f7104746719b4dc873ad5b13d
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 6600af7a2fde1d4054906c7cf64eca4a665a4cd129eb823b404af7d3be432502

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetDriveTypeA
kernel32.dll::GetVolumeInformationA
kernel32.dll::GetSystemInfo
kernel32.dll::GetStartupInfoA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::GetFileAttributesA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA

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