MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b38db3a26989da875d7c312cf3749b8dd85e4a8533d77cb6ebb527276a9a5c77. 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: 3

Intelligence 3 IOCs YARA 5 File information Comments

SHA256 hash:	b38db3a26989da875d7c312cf3749b8dd85e4a8533d77cb6ebb527276a9a5c77
SHA3-384 hash:	3f1b9fe27310f0dd831cca1e36603c82e761537f2a2b24893e237db4f78204ff36fde21a01be65fc6128b6477e45bcbe
SHA1 hash:	c4ab93d9a106e098c1275a5e581ad46a146b464a
MD5 hash:	767bd1ba83cc7509e1bac78bdd4e00ee
humanhash:	montana-pasta-island-maryland
File name:	Invoice D14008637.doc
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	34'816 bytes
First seen:	2020-06-10 18:14:59 UTC
Last seen:	Never
File type:	doc
MIME type:	application/msword
ssdeep	192:wb6SyZEozyGc6ri5bv/0yl33nU2FHi/Md0jpq/ew+xZC1nqnodnFAtD4us3pab:wb2yGcS2r3k2sMd0jQ/ew+a1nMAnFAt
TLSH	8EF2A401B395D932E35945320D8FFB9A23AF7C89AD5D429B3A103B0EBEB6574CA417C1
Reporter	abuse_ch
Tags:	AgentTesla doc

abuse_ch

Malspam distributing AgentTesla:

HELO: cox.net
Sending IP: 104.152.188.76
From: Jeannie Wong <jasafford@cox.net>
Subject: Fw: Invoice D14008637- RESEND: Official Receipt -MAISON&OBJET
Attachment: Invoice D14008637.doc

AgentTesla payload URL:
http://bencalizo.duckdns.org/musky.exe

AgentTesla SMTP exfil server:
smtp.yandex.com

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

Doc.Downloader.Generic-6698421-0

Doc.Downloader.Generic-6698422-0

MiscreantPunch.EvilMacro.CHRSHELL.171211.UNOFFICIAL

Gathering data

Threat name:

Script-Macro.Trojan.Skeeyah

Status:

Malicious

First seen:

2020-06-10 18:16:07 UTC

AV detection:

18 of 31 (58.06%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wog3hitjrhnioxl4gewpg5e3rxmf4sufgplxznxlwutso2u2lr3q._file

Result

Malware family:

n/a

Score:

10/10

Tags:

macro

Link:

https://tria.ge/reports/201109-8m8a7f7knx/

Behaviour

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Office loads VBA resources, possible macro or embedded object present

Drops file in Windows directory

Blacklisted process makes network request

Process spawned unexpected child process

Malware Config

Dropper Extraction:

http://bencalizo.duckdns.org/musky.exe

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

Rule name:	Office_AutoOpen_Macro Create hunting rule
Author:	Florian Roth
Description:	Detects an Microsoft Office file that contains the AutoOpen Macro function