MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb2b081b348a1b1838d98c802b3789d4d17b1992851dc317fc1df7a1c4a90f21. 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: 8

Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash:	cb2b081b348a1b1838d98c802b3789d4d17b1992851dc317fc1df7a1c4a90f21
SHA3-384 hash:	2b3c6eb94a670dfd6a3fb09d92daae50043844d0223225cc1b638c8121a2ab1c47467434b43d51917282588353ec169a
SHA1 hash:	d7f6c7426ad854a691e6efbdbab922d0bc3a2f5a
MD5 hash:	9ab1d3c3856dfadefccf6928d5bd9014
humanhash:	foxtrot-paris-july-white
File name:	INQUIRY AND CATALOGS.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	624'128 bytes
First seen:	2020-07-29 11:23:16 UTC
Last seen:	2020-07-29 12:06:35 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:NAINys8I8/4rjGF4VtXptnVDAn8ov5kNSUWnMDfrLNHQKO2:uIFjfVt508ov5jTMDf5QKj
Threatray	10'309 similar samples on MalwareBazaar
TLSH	6ED4C09EB690F916C2BE4179E29D1518CFFD8185926BF3452840D7FF9AC23A3E4011BE
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: etisalat.ae
Sending IP: 95.211.208.25
From: Ashish Parab<noreply@etisalat.ae>
Subject: Re: PFI/20-21/044 & PFI/20-21/008_NEW INQUIRY
Attachment: INQUIRY AND CATALOGS.iso (contains "INQUIRY AND CATALOGS.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/34824/

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a custom TCP request

Creating a file in the %temp% directory

Launching a process

Creating a process with a hidden window

Deleting a recently created file

Unauthorized injection to a recently created process

Creating a file

Using the Windows Management Instrumentation requests

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

92 / 100

Link:

https://www.joesandbox.com/analysis/402427

Signature

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

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: Scheduled temp file as task from temp location

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 steal Mail credentials (via file access)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/cb2b081b348a1b1838d98c802b3789d4d17b1992851dc317fc1df7a1c4a90f21/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-07-29 11:25:08 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=zmvqqgzurinrqogzrsacwn4j2tixwgmsquo4gf74dx32drfjb4qq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

2beabe2b3687dbd2375edc30905a41c7125e1a0b310eb2221901575632ac7a1d

AgentTesla

642f3ac7ce246c87fed41bc3952ed2086187587f34a5b27270ac3c1ffca8aff3

AgentTesla

6c027abea40a3cafad6d1e1d80f6a0c05c77fe88b0eb91f15c3fef054a35ae67

AgentTesla

7f0fb6cbeb67d61d2fcf55c3e9496eee625be53db7e4e0a6321403efd9f8f7c8

AgentTesla

86e731609c61fdf28983435240b0e28b9548ec53863c2db87036f0f79313c33b

AgentTesla

92458ba101e201f855a4bf2d71281cd304171520d73c90947cc45921da3e7987

AgentTesla

af905972a17e26abbcdb1b00d7ce10499707d2a3c42f5a9584a4823adf1a1c0e

AgentTesla

b1c6549b6f8357b0ca42b26fe2fa4e3cdfcf684b1d5446ca23500a9e3d7450be

AgentTesla

e509b23e338968bd1f1242df28436bf1c954d91b2410654d55d3812078eda6f8

AgentTesla

+ 10'299 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

3/10

Tags:

n/a

Link:

https://tria.ge/reports/200729-jz8bmbmpwe/

Behaviour

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Program crash

Suspicious use of SetThreadContext

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Kryptik

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/cb2b081b348a1b1838d98c802b3789d4d17b1992851dc317fc1df7a1c4a90f21

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