MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f. 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

MassLogger

Vendor detections: 14

Intelligence 14 IOCs YARA 17 File information Comments

SHA256 hash:	ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f
SHA3-384 hash:	bdf385fcf0137f8e68a4ab0c10f5596e00457769a2f84c292da9c4b49d49ffb121f750d4a44f1229da3b77e01f3e97ea
SHA1 hash:	4ef62c22addafdae91dfc66d8fa5bc9fbd06cd2f
MD5 hash:	b1ebcd89d248f11a6bbee488bdecfc07
humanhash:	india-mountain-batman-fish
File name:	ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	684'032 bytes
First seen:	2025-01-10 14:45:40 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep	12288:0iMKhM39TXsTAiALDKuxoMpn0c7TX2XRRfjgx6M0XiKu8h2cWp18:bMaciJuxPL7TXeRfjgwXluGy1
TLSH	T195E4BFC03F3AB312DE6CB434852AEDB862592E74B104B9F36EDD3B5776991129A0CF14
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 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)
Magika	pebin
File icon (PE):
dhash icon	4c10cccccccc004c (2 x Formbook, 1 x AgentTesla, 1 x MassLogger)
Reporter	adrian__luca
Tags:	exe MassLogger

Intelligence

File Origin

# of uploads :

# of downloads :

188

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f

Verdict:

Malicious activity

Analysis date:

2025-01-10 22:35:45 UTC

Tags:

evasion snake keylogger stealer

Link:

https://app.any.run/tasks/51991bc4-a16d-4f8c-ac6c-c7411c6ef1bd

Note:

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

Detection(s):

Win.Packed.Pwsx-10039066-0

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=678132e12c8240e189bb9372

Tags:

masslogger shell virus micro

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

DNS request

Connection attempt

Sending an HTTP GET request

Sending a custom TCP request

Reading critical registry keys

Adding an exclusion to Microsoft Defender

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

fareit packed packed packer_detected

Link:

https://www.filescan.io/uploads/678132b21b01484d158e3972/reports/b6c265ec-074a-4b42-a2d6-aac313ab93ae/overview

Verdict:

Malicious

Labled as:

Trojan.PasswordStealer.Generic

Link:

https://www.hybrid-analysis.com/sample/ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f

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:

Snake Keylogger

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/16d59a3a-1bb2-4a7b-90be-1b64085467bb

Result

Threat name:

MassLogger RAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1588136

Behaviour

Behavior Graph:

n/a

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f/

Threat name:

ByteCode-MSIL.Backdoor.njRAT

Status:

Malicious

First seen:

2024-12-11 10:40:29 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

29 of 38 (76.32%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=56g3rr3vtevlroj7ztl55wofzoth7k5cxugby377sah6q7tz4yxq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

collection discovery execution spyware stealer

Link:

https://tria.ge/reports/250110-r5bv2azlck/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Checks computer location settings

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Command and Scripting Interpreter: PowerShell

Verdict:

Malicious

Tags:

404keylogger Win.Packed.Pwsx-10039066-0

YARA:

n/a

Link:

https://app.threat.zone/submission/3cf83341-60c1-4ffb-86e6-a963dabb9b77

Unpacked files

SH256 hash:

366cfb2015078d80637bad5e41ba879903fafc17fe6d24d74210fbbfeaa07bd6

MD5 hash:

6c6509adcd386e5aa612f7a9c3d8a04b

SHA1 hash:

d36a9e2f20a88d035da9f976ba551358cbb3f913

Link:

https://www.unpac.me/results/eb20f341-4396-4a8b-a546-35874960eb74/

SH256 hash:

a61fbe84a8249c28493f3500b090532c4ebedaedc335c3ac14ea6a2587ec1e38

MD5 hash:

ab1a513e370ed9d07fc4c1dad8246109

SHA1 hash:

8ea9e15c374a9663d1b516a4cd0d1172bd2874d7

Detections:

win_masslogger_w0

win_404keylogger_g1

MAL_Envrial_Jan18_1

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

Link:

https://www.unpac.me/results/eb20f341-4396-4a8b-a546-35874960eb74/

Parent samples :
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SH256 hash:

31c97d82caf62c5e6cfa254c4cbdd83e65888a3190c00767f76d23544373f516

MD5 hash:

379b04a2881a8eb7874d39b3fd9294f0

SHA1 hash:

8d50176e7981f8fd5825ab1f11d45bafbef071d9

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/eb20f341-4396-4a8b-a546-35874960eb74/

SH256 hash:

ef8db8c775992ab8b93fccd7ded9c5cba67faba2bd0c1c6fff900fe87e79e62f

MD5 hash:

b1ebcd89d248f11a6bbee488bdecfc07

SHA1 hash:

4ef62c22addafdae91dfc66d8fa5bc9fbd06cd2f

Link:

https://www.unpac.me/results/eb20f341-4396-4a8b-a546-35874960eb74/

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:	crime_snake_keylogger Create hunting rule
Author:	Rony (r0ny_123)
Description:	Detects Snake keylogger payload

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_TelegramChatBot Create hunting rule
Author:	ditekSHen
Description:	Detects executables using Telegram Chat Bot

Rule name:	MAL_Envrial_Jan18_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Encrial credential stealer malware
Reference:	https://twitter.com/malwrhunterteam/status/953313514629853184

Rule name:	MAL_Envrial_Jan18_1_RID2D8C Create hunting rule
Author:	Florian Roth
Description:	Detects Encrial credential stealer malware
Reference:	https://twitter.com/malwrhunterteam/status/953313514629853184

Rule name:	masslogger_gcch Create hunting rule
Author:	govcert_ch

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

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

Rule name:	pe_imphash Create hunting rule

Rule name:	RansomPyShield_Antiransomware Create hunting rule
Author:	XiAnzheng
Description:	Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

Rule name:	telegram_bot_api Create hunting rule
Author:	rectifyq
Description:	Detects file containing Telegram Bot API

Rule name:	Windows_Trojan_SnakeKeylogger_af3faa65 Create hunting rule
Author:	Elastic Security

Rule name:	win_masslogger_w0 Create hunting rule
Author:	govcert_ch

File information

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

No further information available

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

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