MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e248fe5665f284ecbc2f4960e94ad2850f4564ce54339f9eff397ac354fa6619. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e248fe5665f284ecbc2f4960e94ad2850f4564ce54339f9eff397ac354fa6619
SHA3-384 hash: 062d5a43d8a6a4e49ca639e3bcc0d0d494f04dfea57a176223a0f21bf3efdb91761539620fcaab51af69c4d5c7d14328
SHA1 hash: f3c53079cd585acc4d7081db69dd4fdce5e2b427
MD5 hash: 582427037eed9808e9da752bea838469
humanhash: yellow-foxtrot-massachusetts-pennsylvania
File name:CBT7797.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:937'984 bytes
First seen:2020-08-17 08:18:55 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 24576:e4EcmZHAFaxmVmie9bngPaMeslf9CnaT7bT76DJS/4Hfo2NZo34MasoI9K:e4EcmZHAFaxmVmie9bngPmoF3L6Dk/4t
Threatray 622 similar samples on MalwareBazaar
TLSH 1615CF8878C0A3DDE1EA8F7E58988C1477D22F5E0506A907DD7B3ED17BE8BC15E4448A
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: s111-ir-cpanel-trade.maindns.net
Sending IP: 185.165.116.18
From: Ana Kersen <contact.primafit@gmail.com>
Reply-To: gemi@primafit.co.id
Subject: Re:New Order!!
Attachment: New Order.rar, Specified Colors.rar (contains "CBT7797.exe")

MassLogger SMTP exfil email address:
smtp.gmail.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/46811/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/432876
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268744 Sample: CBT7797.exe Startdate: 17/08/2020 Architecture: WINDOWS Score: 96 56 Found malware configuration 2->56 58 Yara detected MassLogger RAT 2->58 60 May check the online IP address of the machine 2->60 62 4 other signatures 2->62 9 CBT7797.exe 3 2->9         started        13 vlc.exe 2 2->13         started        process3 file4 42 C:\Users\user\AppData\...\CBT7797.exe.log, ASCII 9->42 dropped 68 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->68 70 Injects a PE file into a foreign processes 9->70 15 CBT7797.exe 15 7 9->15         started        72 Machine Learning detection for dropped file 13->72 74 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 13->74 19 vlc.exe 13->19         started        signatures5 process6 dnsIp7 50 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.126.66, 49734, 80 AMAZON-AESUS United States 15->50 52 nagano-19599.herokussl.com 15->52 54 api.ipify.org 15->54 40 C:\Users\user\VideoLAN\vlc.exe, PE32 15->40 dropped 21 cmd.exe 1 15->21         started        23 cmd.exe 1 15->23         started        file8 process9 process10 25 vlc.exe 3 21->25         started        28 conhost.exe 21->28         started        30 timeout.exe 1 21->30         started        32 conhost.exe 23->32         started        34 schtasks.exe 1 23->34         started        signatures11 66 Injects a PE file into a foreign processes 25->66 36 vlc.exe 14 6 25->36         started        process12 dnsIp13 44 smtp.gmail.com 66.102.1.108, 49745, 587 GOOGLEUS United States 36->44 46 184.73.247.141, 49741, 80 AMAZON-AESUS United States 36->46 48 4 other IPs or domains 36->48 64 Tries to steal Mail credentials (via file access) 36->64 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e248fe5665f284ecbc2f4960e94ad2850f4564ce54339f9eff397ac354fa6619/
Threat name:
ByteCode-MSIL.Trojan.CryptInject
Create hunting rule
Status:
Malicious
First seen:
2020-08-17 04:08:27 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4jep4vtf6kcozpbpjfqosswsquhukzgokqzz7hx7hf5mgvh2mymq._file
Verdict:
unknown
Similar samples:
18b361d4c6546def2b2023997b8b0f425f8c1f4f393b94550abebdf69dc2f6e2
MassLogger
34835ff5a99d333a86d2fe7770cf4ab6612b1385d7d69d99272e96f084527237
MassLogger
43289bb160c005728b4dc1d8cd723356f1e7d2e5ba90bea7d28c3334224939c0
MassLogger
67f95900e94aed84cb50b3597df4b89270faa3b23ff0c9c6eb2398eb69c096bb
MassLogger
860a68354fad849f4d5886f00c701638d1226088d4ca26c07216d089f986a7bb
MassLogger
a20df8c992413eb34262d572f57d37c34dcdaab0fca4725dfd1a910f249f46a2
MassLogger
a91926c898c91c02d44556c60d2ed4289fcdde2e2a03c0fdcc003678aa5d767c
MassLogger
b71b1e0152b7112c6ad660c51751d19bf245fb7739c605c9389909fa4c721d06
MassLogger
c232e05f633d3e2bd0a1486a955d7f72eb9155408a635666306d922b333809b2
MassLogger
ccac5881ca9beeead13f5c7f05b289e9d3013a9eea7ce8a087dcb0aade9a60e2
MassLogger
+ 612 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware spyware stealer family:masslogger
Link:
https://tria.ge/reports/200817-nq5azbsmkj/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger
MassLogger log file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e248fe5665f284ecbc2f4960e94ad2850f4564ce54339f9eff397ac354fa6619

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:masslogger_gcch
Create hunting rule
Author:govcert_ch
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

rar a961209c263c9a7f182b5e1085d467757df148a1fdf657f1896c3a2fc6000a75

MassLogger

Executable exe e248fe5665f284ecbc2f4960e94ad2850f4564ce54339f9eff397ac354fa6619

(this sample)

  
Dropped by
MD5 41a24747316d37115167e9b80d39b02d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/46811/
  
Dropped by
SHA256 a961209c263c9a7f182b5e1085d467757df148a1fdf657f1896c3a2fc6000a75

Comments