MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c. 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: 12

Intelligence 12 IOCs YARA 20 File information Comments

SHA256 hash:	f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c
SHA3-384 hash:	24b1e9c49a3a60583c3c07179c6ae5ff99b9c202411dd35af40a8ab59d06d287ad80eb455e66b47fe6af1085f277da3d
SHA1 hash:	c3581ebf4876b7cd903843d1f4df759069c3df63
MD5 hash:	130885914105ffcc7be507d9c2db1808
humanhash:	social-fish-robin-venus
File name:	f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	800'768 bytes
First seen:	2025-07-07 14:39:57 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	12288:vvYwd7GASYfVsFlEIU+pN6vu+ob79bXLzqIrggCO9d+zOUiTv:vRd7OpxnRaIrxC2EzmTv
TLSH	T1BB05AE00B2744F4AE47A47F90126D73097F65E6DB47EE7098DE9BCEB7961B012A80B13
TrID	69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.0% (.EXE) Win64 Executable (generic) (10522/11/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.2% (.EXE) Win32 Executable (generic) (4504/4/1) 1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika	pebin
dhash icon	f0e8ccb2d4d4f0f0 (7 x Formbook, 3 x AgentTesla, 2 x MassLogger)
Reporter	adrian__luca
Tags:	exe MassLogger

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/12993/

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=686bdc75900df8e7f86847b5

Tags:

agenttesla virus micro msil

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a 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

Blocking the Windows Defender launch

Stealing user critical data

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c

Malware family:

Snake Keylogger

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/b5d472e2-74cf-4903-abe2-acf8e74d0c58

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable PE (Portable Executable) SOS: 0.07 Win 32 Exe x86

Link:

https://app.malva.re/file/130885914105ffcc7be507d9c2db1808

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2025-06-23 04:14:23 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

27 of 36 (75.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=7dawqpn7ydkawi7xeblgwut6umoznipcjzqfqbob2rsgv5754yoa._file

Result

Malware family:

masslogger

Score:

10/10

Tags:

family:masslogger collection discovery evasion spyware stealer trojan

Link:

https://tria.ge/reports/250707-r15ybaem2s/

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

MassLogger

Masslogger family

Modifies Windows Defender DisableAntiSpyware settings

Malware Config

C2 Extraction:

https://api.telegram.org/bot8033877980:AAHqRHGJsyLgcsFbXWn0qH7Pj2TrXmObvDQ/sendMessage?chat_id=7731003424

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/b91ac3c0-b87e-4195-a2fe-2b30fab369dc

Unpacked files

SH256 hash:

f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c

MD5 hash:

130885914105ffcc7be507d9c2db1808

SHA1 hash:

c3581ebf4876b7cd903843d1f4df759069c3df63

Link:

https://www.unpac.me/results/dba05f0d-b1d0-40bf-b33f-435ea1a6d46f/

SH256 hash:

e5178515af752b210f6cf83df9f6098e071d2836710af3a33c4dc662be4f5b1e

MD5 hash:

3d13d875fb8030a425449b1b15962062

SHA1 hash:

1864603752e2a43bc4c587ea9db85dd1a6c258fc

Link:

https://www.unpac.me/results/dba05f0d-b1d0-40bf-b33f-435ea1a6d46f/

SH256 hash:

86827167b25f4d8135695f377f86c0e8e9ce2cab50675da50f8a7b461ba74344

MD5 hash:

b7ae6bb625e88da6ed8e40392b28bcf6

SHA1 hash:

38820a3a8d67a2eba07a28c350db28df1e03897b

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/dba05f0d-b1d0-40bf-b33f-435ea1a6d46f/

SH256 hash:

c74080282f68f9617e70b3b00a7728af7c15895b13cab34588d57ea14757bb79

MD5 hash:

e65ec9a8221b987bae48a5651a8dc747

SHA1 hash:

d46d27e328d3d9affa4b55231c9b3d14b78600d8

Detections:

win_404keylogger_g1

win_masslogger_w0

MAL_Envrial_Jan18_1

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender

Link:

https://www.unpac.me/results/dba05f0d-b1d0-40bf-b33f-435ea1a6d46f/

Parent samples :

37deb7d4ba1e81700197730a2f9259414d00c05c9b56400a364c914dc0a44b4a
7553b95daaa8bf122add4c34e160f80ad4438680185b820788b31cba9a66379d
f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c
975de0616a561e423d820a9afdcad4ee7521deb2f192da0e4a220ff1da03f82a
0bfb0b841074e05c24408075a90c89647429199cf37b4970a0e17b49e334c857
9b8df0ab8e4701b23fbba918727eef9edb4449d7862f0bd3606b90db439f8ed8

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/f8c1683dbfc0d40b23f720566b527ea31d96a1e24e605805c1d4646af7fde61c

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:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

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_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

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.

Cape

https://www.capesandbox.com/analysis/12993/

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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