MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b. 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

Formbook

Vendor detections: 16

Intelligence 16 IOCs YARA 19 File information Comments 1

SHA256 hash:	a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b
SHA3-384 hash:	249fb6448e7bdd16afe85adf8f23d6ada92334c99a00fe027bacd49203f95d92a7d26f45f9669fcb1649bb4280ec5099
SHA1 hash:	a7e4c663070125d5d00766d8610bf13c34e85cd9
MD5 hash:	9777327e5dc768314f8083deb0e3a000
humanhash:	white-comet-jig-pennsylvania
File name:	9777327e5dc768314f8083deb0e3a000
Download:	download sample
Signature	Formbook Create hunting rule
File size:	726'024 bytes
First seen:	2024-04-16 16:30:33 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep	12288:AM4j+3LmuoboUIqJysdeR8KgO8dx1YttC2gcXoQKYnkJnEr3Hg90dQvwJXyz/+xy:AM4i3p5UIqJyo9Co2gcXodCuoQ8QvwNS
Threatray	999 similar samples on MalwareBazaar
TLSH	T1E8F40200B2F5BF19D2B98BB4DA225D241B7275F62A31D34B5EC2B0C25A75BC04B41B6B
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	004000c8c8004000 (6 x AgentTesla, 6 x Formbook, 4 x Neshta)
Reporter	zbetcheckin
Tags:	32 exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

297

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b.exe

Verdict:

Malicious activity

Analysis date:

2024-04-16 16:38:15 UTC

Tags:

evasion agenttesla stealer

Link:

https://app.any.run/tasks/b2ed3cd2-b810-45df-af81-aba7bcdbc418

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

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 file in the %temp% directory

Launching a process

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Using the Windows Management Instrumentation requests

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Gathering data

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0e9810b3-2cd6-4e63-805f-ae749110ef08

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1426918

Signature

.NET source code contains potential unpacker

.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

Check if machine is in data center or colocation facility

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

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Injects a PE file into a foreign processes

Installs a global keyboard hook

Loading BitLocker PowerShell Module

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

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

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

98%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2024-04-16 12:43:42 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

20 of 24 (83.33%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=u73opd3lbxphlgpfhche5gkpphk2bfinwvqjfqhcxugktud7ocfq._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

Formbook

4ec8f72bf35c4a1de223b92521d3e0c996809eaf52f50960d8580e89be6152e7

Formbook

7b84515dd5dae03b609288beaef3f6124bcaaad22df52c405ae9a051a9b55db3

Formbook

8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40

Formbook

a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b

Formbook

ccadaf700c4557efd158b2578d62710414c288b13d1c7a1eec1b06957ea8837b

Formbook

+ 989 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240416-t1cymseg78/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Looks up external IP address via web service

Checks computer location settings

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla

Unpacked files

SH256 hash:

ef086554a5f1adfd6f85e2f424371b324935bfb94fc7a838873493e274edcf5c

MD5 hash:

5137f6deb56ea099c6d967602b042b8b

SHA1 hash:

9b412b2642315bc3125c53fde0d4a4d7745e86c5

Detections:

AgentTesla

win_agent_tesla_g2

INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Agenttesla_type2

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/e56a4e6a-48fb-4feb-9f11-5fcbf4905cf0/

Parent samples :

a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b
0dbab91308f11720f979f402adf1d6c4e2d575a9fa5e0f4d30f550e7010f35ce

SH256 hash:

4f9af1bc7a585bea9a3056d63b9bc1da91cceeab1503cb04724e0abf02de1e11

MD5 hash:

3c9602d0c4e4b4761a61fac9762b75d5

SHA1 hash:

7d3d5703b4fa708620d043e04b36ae7294dd211f

Link:

https://www.unpac.me/results/e56a4e6a-48fb-4feb-9f11-5fcbf4905cf0/

SH256 hash:

4c2e3d2b45f990c8761ac453424847b7431514032f7686abc89490134baa45a7

MD5 hash:

f47d55ee9bbcb9cec05919d298769f70

SHA1 hash:

43d49bb529ee82363251afbb2686101a5ab9d0ee

Link:

https://www.unpac.me/results/e56a4e6a-48fb-4feb-9f11-5fcbf4905cf0/

SH256 hash:

6ead44426b9ecae00002d69c0c4be091434d756efe7483614531c39d9cdcb405

MD5 hash:

c8ca3dd877f3189353c77cd4eabb1f7e

SHA1 hash:

12ef6375e5cfb0aae8141494f2a0d2c3fb6b0eca

Detections:

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/e56a4e6a-48fb-4feb-9f11-5fcbf4905cf0/

Parent samples :

4ec8f72bf35c4a1de223b92521d3e0c996809eaf52f50960d8580e89be6152e7
d82adbafec869ce93ab6133e0f88ae81e1f138d6f31bd90aa054fc4331001169
a3a6bfe5a3988d524fafea932f3c02cefb58c149a99900ff9bde8c4c9f317723
bc8e5c7e7dacfb3ed91a8fb6aa5c878bdc52e39ce1c4c797ec39862a53345ce4
8b3e308bf8008d70c9993b67aed96d3c0b0e472efd9e8335ec8e6e4f1b7b6e69
7845739be7bf4d602cbaa0f0a900bea3c631c439eb57fe53d92b3686c49c4b80
fadcd7b36622cde793fdb8b3c509c13efb05a57e5227ea5c0dac37ef49a5cb02
66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7
8ae053d9300b897c0009559407842f893ca81461f707172cc42a324436839a56
522df31fa6822a48a743918cc4371daaa6ca5aade2713ddf6e4a7726c78d54a7
39d953c3a7a07ccac490d3286fe0c1a079fa2e5041bdc9bc74585b5beae6de7a
24e1635d9baec3de0506b2574420ccec046c903278316dfc461abb19b13b6de9
837c9f462983fee07c9648d487f7ff5e1ec82c9b45d0ae9337f8c452cd0e6b5c
88662dd7853cd4f04a590fc65bd5f431add70a7e9c645e0dbc7bd4d3708c491b
7038b1250cc9380861d92e721d364cb844459f87ecc3fe002b59e97d35926dfa
dedb50b5fe07672b55fc3cbc497b917ce9cde55ffafa5a855cc42addaee124f7
75854947a6a21c6fdacee3b080ad9f9c8c86546b54410a968d6f09c23e5d00c9
8c304594adb8d9835dce06ef5b3c130b7fa299c76e88d204c998401b71266859
eedd6d6a9ec4bf82ca87e66c1ae5b86983e8479598df71f3602283b93dd07035
1a632b809dda5ccb587a4c6dc66f7b0e118e17d91f8e6813a1cb36dfe3396771
fad3e7058eb2fa88ce97e62a6a243748d6736f9c4e21e4112ed61a40813588b2
66a0cfa14afdb23dec776fa355b9f89551405989b9838db6398c77ee6c73c084
ba03ce2bfa7e568a1f401420156219b97fce9bbfb3fb391783c804ac75df665e
a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b
6f786b8f8dd18709b9e4ad44e33cb1074d55aa2f0f3cd1fe3759e8795df0a3a9
e347a46c3060085556d9ec4577d577ab08ee49910495ed084e8059883c75e7da
8eb0fdf0ff3b38ae84311b29effb0030a3b9a38430f7b8ee7918d2eb1301b12e
d405284f75cde4b8c45e3d5c3b41c7bbd6db2c75788cb6d0b1deec5ea60559a4
d6e165b127f88b60636959975f143221c8de8bef290f662917f9f61e55f2bf33
9513ea80cc5dabab23c0069ed1b8caaff8d2d10ae9e842bda19a69eb5140a497
64b47fde027cfd04023331dcd19612933dc9b9d77731b487844c129d0d354b20
ff939a5a3ccca65092f55808e05edec69e6db26df74db1b743cdc96f4c872279
7abd4b1c93d30c7ab8f817ebcf83262950131614590c9b254f05449ec493818c
17ffcd130215ae5b3f8ba4f4aa5577abdf7c44a0c2e70619c35e42bafbbb3a82
40bb8b7b9fec345f4aa54b05cc02fa42b404b9de341e07f7c6d7a0c1a1d801ff
82f32be71d9c226d53658209924e4e534383b0db5481dbd49923692ef5666940
edba3afe3fedc9e2ef23525c676755c2bdb76836cd4946eb4d97b22a535991be
98206390a847ef2600f916f0076f687d5261ff98ca02b5292fdf44017ca0e006
f2664bdfd035d146843f1575528eb9694a98b32f99488058a0e04885ad62e9c2
e609540945ebef9d1596ca2b25b84c647093c5cd2739bd956d65d78b0b3aa7e7
3815bc3a78dc96a0af4aca4446b3afa741d3910530ae69b06895b0e499d49aa6
9bf25ebe467e570fc91e2003b17061c765fcb54b6d505a7db43263981504fa5f
7d8a3cc2392ce50d2f75137711acb7358d30157108bfb221c509b0afbab197ec

SH256 hash:

a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b

MD5 hash:

9777327e5dc768314f8083deb0e3a000

SHA1 hash:

a7e4c663070125d5d00766d8610bf13c34e85cd9

Detections:

INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438

Link:

https://www.unpac.me/results/e56a4e6a-48fb-4feb-9f11-5fcbf4905cf0/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a7f6e78f6b0d/report/overview.html

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

Threat name:

Formbook

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b

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:	AgentTeslaV3 Create hunting rule
Author:	ditekshen
Description:	AgentTeslaV3 infostealer payload

Rule name:	AgentTeslaV5 Create hunting rule
Author:	ClaudioWayne
Description:	AgentTeslaV5 infostealer payload

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

Rule name:	INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438 Create hunting rule
Author:	ditekSHen
Description:	Detects executables signed with stolen, revoked or invalid certificates

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many file transfer clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Windows vault credential objects. Observed in infostealers

Rule name:	malware_Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_imphash Create hunting rule

Rule name:	PE_Potentially_Signed_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Windows_Trojan_AgentTesla_ebf431a8 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

Web download

Formbook

exe a7f6e78f6b0dde7599e5388e4e994f79d5a0950db56092c0e2bd0ca9d07f708b

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2814332/

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Comments

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zbet commented on 2024-04-16 16:30:34 UTC

url : hxxps://dukeenergyltd.top/m4V7uvgzXDHblwp.scr