MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64c51fc10708dbd2fb676b2a95bd1330d4fe8099384713d0bea70c0c17928fec. 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: 9

Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash:	64c51fc10708dbd2fb676b2a95bd1330d4fe8099384713d0bea70c0c17928fec
SHA3-384 hash:	1383145eb11d06e7236763831dc21d97083f64359d26ee8fd8afea343b3d71b48d2232a4d3ce1e1f9577b2d80768eca3
SHA1 hash:	091a1f339d9a9bba18b3d531990cd28eabc60819
MD5 hash:	743de1f2483fb363557d2ee148839461
humanhash:	lima-summer-mobile-zulu
File name:	Purchase Order for 0514 BUY F20.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	657'408 bytes
First seen:	2020-08-08 08:30:22 UTC
Last seen:	2020-08-08 10:09:03 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:gmV/4Z92u42Pp2HCr5HnGUFlCLdK42grpiAxP7r9r/+ppppppppppppppppppppt:gmiS9g5HnRFlQDrQAx1q
Threatray	71 similar samples on MalwareBazaar
TLSH	07E4AD84D98C67A0DCD8AB746A3EED3542237DFDA974A51C28DE3D273BFB3921021152
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: jiuyutex.com
Sending IP: 103.99.1.149
From: Katharina.hong<Katharina.hong@jiuyutex.com>
Subject: RE:[COLUMBIA] Purchase Order for 05/14 BUY_F20_SHANGHAI JIUYU_ATC VN
Attachment: Purchase Order for 0514 BUY F20.zip (contains "Purchase Order for 0514 BUY F20.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

110

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/42130/

Detection(s):

SecuriteInfo.com.Trojan.DownLoader34.18893.87.25848.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

96 / 100

Link:

https://www.joesandbox.com/analysis/415811

Signature

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 sample

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)

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)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/64c51fc10708dbd2fb676b2a95bd1330d4fe8099384713d0bea70c0c17928fec/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-08 01:01:35 UTC

AV detection:

22 of 29 (75.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=mtcr7qihbdn5f63hnmvjlpitgdkp5aezhbdrhuf6u4gayf4sr7wa._file

Verdict:

unknown

AgentTesla

354340be6e5dd978bf51da794fdf3b4972163070e349fe40e023399827e8e817

AgentTesla

3ba509359db69542f368af1d41dd8fa1c116e3e31ded1879872bb34a41f9cbbb

AgentTesla

62eac77e0c2f8ca3a62f0ba2cd9989323b8a8d571ddd613048820f5cee6b1162

AgentTesla

87257a8478febca687e205af4d5fe832c8de27f257c8201879e7556b61da9f92

AgentTesla

8f3ad5ccb61c668f7fbbc009cf0ea27396dd4fe80c0adb7b6daa86b136308252

AgentTesla

c5a9b35e88c8854b9ded651caf716d6ecf5e30454859c4a664d2120145bccc67

AgentTesla

d6fad316d9603cc8cf82b520043853ef4597124b2ffb86abf8b52b80e9f18a53

AgentTesla

e673332bede0d99119dddfdf730d250a4a4eb4b84810fdf8bd8f27e6955c6412

AgentTesla

f5ca4644c1340cd373374d09ecd052c57c8c8abef50c4ae280876497d3f40a64

AgentTesla

+ 61 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla persistence

Link:

https://tria.ge/reports/200808-j65jebj3ea/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

Reads user/profile data of web browsers

Reads user/profile data of local email clients

AgentTesla Payload

AgentTesla

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/64c51fc10708dbd2fb676b2a95bd1330d4fe8099384713d0bea70c0c17928fec

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