MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38f73caeeb18b876e4ce3f07c3b0f3b6e145ae6ff1fc0f708448e40729a17861. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 38f73caeeb18b876e4ce3f07c3b0f3b6e145ae6ff1fc0f708448e40729a17861
SHA3-384 hash: 05106d232db3e43644d730f3bd96ae4c9415ac4e64477db4a9987669e655c51818b4d88ed05ff5734ca55d6dd5b546bf
SHA1 hash: 623d0c9158b37d263a9af1ccea70aec4de010f3a
MD5 hash: fa2705f1e50e811c6e04dd011c3d9873
humanhash: hydrogen-ceiling-blossom-sad
File name:fa2705f1e50e811c6e04dd011c3d9873.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'044'480 bytes
First seen:2025-02-13 09:38:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:P/RokBMQxc9ZKI7HvkLoAjXW301ugiEXILk0N/B:NEkLoAjN1ugiEXILlN/
TLSH T1AA25F610BF5D6205E92D39FD6A66867726362E06A904F5EAE038730D9D31207CF3739E
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):PE icon
dhash icon 094acb1609217567 (4 x SnakeKeylogger, 3 x AZORult, 1 x MassLogger)
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
452
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fa2705f1e50e811c6e04dd011c3d9873.exe
Verdict:
Malicious activity
Analysis date:
2025-02-13 09:46:47 UTC
Tags:
evasion snake keylogger stealer
Link:
https://app.any.run/tasks/a9e0ff2e-fde9-4642-8726-58c833fb42b3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67adbdc9a0fd713c335aad8b
Tags:
backdoor shell spawn
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
Creating a file
Searching for synchronization primitives
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/67adbdc6991985e0a9581790/reports/79c96bd4-29ed-419d-bfb1-621173162e5b/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/38f73caeeb18b876e4ce3f07c3b0f3b6e145ae6ff1fc0f708448e40729a17861
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a2e234eb-6aa9-4188-99b8-21d39094598e
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1614124
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1614124 Sample: 7TPq5dje3B.exe Startdate: 13/02/2025 Architecture: WINDOWS Score: 100 49 reallyfreegeoip.org 2->49 51 checkip.dyndns.org 2->51 53 checkip.dyndns.com 2->53 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Sigma detected: Scheduled temp file as task from temp location 2->63 67 9 other signatures 2->67 8 7TPq5dje3B.exe 7 2->8         started        12 BoZwHwcosZOpaA.exe 2->12         started        signatures3 65 Tries to detect the country of the analysis system (by using the IP) 49->65 process4 file5 41 C:\Users\user\AppData\...\BoZwHwcosZOpaA.exe, PE32 8->41 dropped 43 C:\Users\user\AppData\Local\Temp\tmp89A.tmp, XML 8->43 dropped 45 C:\Users\user\AppData\...\7TPq5dje3B.exe.log, ASCII 8->45 dropped 69 Uses schtasks.exe or at.exe to add and modify task schedules 8->69 71 Adds a directory exclusion to Windows Defender 8->71 14 powershell.exe 23 8->14         started        17 powershell.exe 23 8->17         started        19 RegSvcs.exe 15 2 8->19         started        28 2 other processes 8->28 73 Multi AV Scanner detection for dropped file 12->73 22 RegSvcs.exe 12->22         started        24 schtasks.exe 12->24         started        26 WerFault.exe 12->26         started        signatures6 process7 dnsIp8 75 Loading BitLocker PowerShell Module 14->75 31 conhost.exe 14->31         started        33 WmiPrvSE.exe 14->33         started        35 conhost.exe 17->35         started        55 checkip.dyndns.com 193.122.130.0, 49710, 49752, 80 ORACLE-BMC-31898US United States 19->55 57 reallyfreegeoip.org 104.21.96.1, 443, 49711, 49757 CLOUDFLARENETUS United States 19->57 77 Tries to steal Mail credentials (via file / registry access) 22->77 79 Tries to harvest and steal browser information (history, passwords, etc) 22->79 37 conhost.exe 24->37         started        47 C:\ProgramData\Microsoft\...\Report.wer, Unicode 28->47 dropped 39 conhost.exe 28->39         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/38f73caeeb18b876e4ce3f07c3b0f3b6e145ae6ff1fc0f708448e40729a17861
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/38f73caeeb18b876e4ce3f07c3b0f3b6e145ae6ff1fc0f708448e40729a17861/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2025-02-11 07:25:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
38
AV detection:
12 of 37 (32.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hd3tzlxldc4hnzgoh4d4hmhtw3qulltp6h6a64eejdsaoknbpbqq._file
Verdict:
malicious
Label(s):
novastealer
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution
Link:
https://tria.ge/reports/250213-lmqctaxjaz/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e25aefc1-9d6c-4be1-abf4-d4e6f214489b
Unpacked files
SH256 hash:
38f73caeeb18b876e4ce3f07c3b0f3b6e145ae6ff1fc0f708448e40729a17861
MD5 hash:
fa2705f1e50e811c6e04dd011c3d9873
SHA1 hash:
623d0c9158b37d263a9af1ccea70aec4de010f3a
Link:
https://www.unpac.me/results/7cb2f182-7759-445f-a445-74bbbc955da7/
SH256 hash:
3147665c83368cde5138f688416f2c22c35b61ff44607e34e646e2f7af92fe09
MD5 hash:
b947873e4b3d14a22365abf692b07224
SHA1 hash:
34703b174f87ec91b8ccd81329de1141e2731c7e
Link:
https://www.unpac.me/results/7cb2f182-7759-445f-a445-74bbbc955da7/
SH256 hash:
051b2c1912beb483a33cb564cb3d21968b2734afaebbfcd7a915ced687db37c2
MD5 hash:
ee1413717f7665ae2946cfe586b4944d
SHA1 hash:
4da295a980d631f307819111afb1c6b414293b74
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/7cb2f182-7759-445f-a445-74bbbc955da7/
SH256 hash:
8edabc4897e70754a8e7919dc771144962271817c6c001e2f00e9b521eeb6976
MD5 hash:
e558678ccd24eff3def7f85a3e3dcc91
SHA1 hash:
76f3d78045d218b1831c9abd7b82ab6a291f5bb6
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/7cb2f182-7759-445f-a445-74bbbc955da7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/38f73caeeb18/report/overview.html
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: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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments