MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254. 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 18 File information Comments

SHA256 hash:	f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254
SHA3-384 hash:	9c28e49289ae08433af3a48c2d13726736ef94f4e2e5da822219f339056a6d6999e9243a98c1fed4b137e0311a273f6d
SHA1 hash:	d3578d90077243003e141ae5edeab8966b9d0179
MD5 hash:	ad552c485dc284484d5dd9f861518237
humanhash:	five-berlin-lake-montana
File name:	FOHA-25-EP-1066.xlsx.scr
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	323'584 bytes
First seen:	2025-01-17 04:52:24 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep	6144:qNhpHYAbm1Uld9grwsEsQ4E66cZWBO76yIOxJYshIb9KE2u:2W4/grwd66cZWBO2yI8b6ZK
Threatray	177 similar samples on MalwareBazaar
TLSH	T1B1644914B368A79BC1CA42F404589F5A0AAF378933A0F31625377B46EACF75C849C76D
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	29f8d6968ef87082 (2 x MassLogger)
Reporter	threatcat_ch
Tags:	exe MassLogger

Intelligence

File Origin

# of uploads :

# of downloads :

447

Origin country :

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Win32.MalwareX-gen.1962.2324.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6789e231aa9c8e7858df1b25

Tags:

underscore extens micro excel

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Сreating synchronization primitives

DNS request

Connection attempt

Sending an HTTP GET request

Sending a custom TCP request

Reading critical registry keys

Creating a window

Blocking the Windows Defender launch

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

finger lolbin masquerade obfuscated packed packed packer_detected

Link:

https://www.filescan.io/uploads/6789e22fba38081b4a19fb7b/reports/6b90c618-1975-482c-9cb3-57d51ebba286/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254

Result

Verdict:

SUSPICIOUS

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/854ea1c6-2553-4606-8b7f-b0a7ff6ab810

Result

Threat name:

MassLogger RAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1593388

Signature

.NET source code references suspicious native API functions

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Tries to detect the country of the analysis system (by using the IP)

Tries to harvest and steal browser information (history, passwords, etc)

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

Uses an obfuscated file name to hide its real file extension (double extension)

Yara detected MassLogger RAT

Yara detected Telegram RAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254/

Threat name:

Win32.Trojan.Generic

Status:

Suspicious

First seen:

2025-01-17 04:53:05 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=67dfdxz3xzetimofqpxjwa5gwpb7f7b7nzu52xkoubnhkkimejka._file

Verdict:

malicious

Label(s):

snakekeylogger

MassLogger

3cfe012c870ebeb15a1288b7cdb3b50016e2329c7fbd63ef18f189727269d49c

MassLogger

8c98088aa44045c4b7a4a7bebe5d98480fe5cad627b772554ebd0a324cafa37c

MassLogger

b2f88cb8f154ac5d65ea6625caa29220d585c1934e5ef696439ce17dae8d0cfa

MassLogger

c2c192862a68990222cacb9279cacf63370b015a429d2c39d94cbe15cf987388

MassLogger

error

MassLogger

+ 167 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

7/10

Tags:

collection discovery spyware stealer

Link:

https://tria.ge/reports/250117-fhy69ssnc1/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Verdict:

Suspicious

Tags:

404keylogger

YARA:

n/a

Link:

https://app.threat.zone/submission/e79a55a7-6b91-4f35-873f-1b3c05bb34ce

Unpacked files

SH256 hash:

3d404c200d978ad277de0c22354cac9207cc901cfa5020da6a6b46e24f37395d

MD5 hash:

f4c7ad779481f178c7e62c9e5b455506

SHA1 hash:

e07b6362aeb4a61535238405ef417aac2a4ce71e

Link:

https://www.unpac.me/results/98593aba-a80f-4ac6-8106-f5a61094acbc/

SH256 hash:

c32b1ddf060f27e99a32670ba7fadd6f8855b1e19a4cdfd450ed886ef88c93c3

MD5 hash:

2af6cbb892b2a2515c3018b97c28bbf5

SHA1 hash:

cbd37af96de7654fccd06b0a02279a1107606514

Detections:

win_masslogger_w0

win_404keylogger_g1

MAL_Envrial_Jan18_1

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender

Link:

https://www.unpac.me/results/98593aba-a80f-4ac6-8106-f5a61094acbc/

Parent samples :

b2f88cb8f154ac5d65ea6625caa29220d585c1934e5ef696439ce17dae8d0cfa
72bcc45094526e37f7275f87dff9c249a26242414fe30f13d6d5359e0b7fbcac
c2c192862a68990222cacb9279cacf63370b015a429d2c39d94cbe15cf987388
8c98088aa44045c4b7a4a7bebe5d98480fe5cad627b772554ebd0a324cafa37c
3cfe012c870ebeb15a1288b7cdb3b50016e2329c7fbd63ef18f189727269d49c
7e430da9854a73aeac41d86bd6a225ec27cc681188eb70ef5eec80f737a41a91
f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254
14d370a69c8c075b14a411301bc9137d1db0683ac4ff480d25404d9f81533f66
7cbf555d0e0fada3a65efae70663a4fe2bc05d845ad533dab8da8d057b2cac7b
0c7f0ad6c4027b182c902c65592f3efa5e66e5df3904b7ff4fe884789d586d7a
fcf5a2325bf9e4d16d628bb0ead95aa587c893347f25f897e9c5ed76759bd65f
44e71677c27a5f4e7435fe0430b865138504421d206c864ca8a1dc7ca3ebe9db
c0fe9c63478075193c956996fbd557829d55bd9ab800c9a7f4857a77007cbdc3
8c4aa3de23af80966c9a5c8911daebe824bb252bc659a548535e6cf94b2d9ed9
b6d1bbc15f5ae144e4801f8188cbe4768f3ba42e2c4dd56f42a7fa5ec9638460
ffcdb62a0cc1adb7700c13310a3234fa7b25d0981a97ad089a7433c60e7f5188
b3752b8138360ee7ab6f3583c942f1d2ee806f7ede9123ada34abbf27a055633
e9dcf2288b4adbbfe01de0f952df0f050ef533fa151e77b786ceee577f51a079

SH256 hash:

e8ebfda634e10c24642537582e256449074acdf2ac5ea827b81818c111111993

MD5 hash:

5b29dbce9331e1456dcac2b8f087dfd2

SHA1 hash:

702f2aef816d7ed31559640a56919a19c0c9cc51

Link:

https://www.unpac.me/results/98593aba-a80f-4ac6-8106-f5a61094acbc/

SH256 hash:

f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254

MD5 hash:

ad552c485dc284484d5dd9f861518237

SHA1 hash:

d3578d90077243003e141ae5edeab8966b9d0179

Link:

https://www.unpac.me/results/98593aba-a80f-4ac6-8106-f5a61094acbc/

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:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

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_RegKeyComb_DisableWinDefender Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

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:	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.

Malspam

MassLogger

exe f7c651df3bbe493431c583ee9b03a6b3c3f2fc3f6e69dd5d4ea05a75290c2254

(this sample)

Delivery method

Distributed via e-mail attachment

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

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample