MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfde16e103af9e59944d44d7f12e5755313948273cd64237df2dce50811866db. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cfde16e103af9e59944d44d7f12e5755313948273cd64237df2dce50811866db
SHA3-384 hash: 979efb50a0efaaca7f21661b06bca0ec931d3a2705e1f048305d15b3c49ee2ae2d66ac5c94e9d6cbcfca6ad65fd5f177
SHA1 hash: b682a05a1464e6a56a2334df1322bdb03cdbac1a
MD5 hash: 46f407da71637ad9654f4528fc06b504
humanhash: mississippi-nebraska-wisconsin-fix
File name:Xf10142020PurchaseOrder766657.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:2'177'584 bytes
First seen:2020-10-14 15:53:43 UTC
Last seen:2020-10-14 17:01:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:lM9dvKEh5dUT+6LHX9kk33M/bOlTRBeBGGGJzm8Ul/lxg/zry:lM98iyknbsBfJXAqa
Threatray 322 similar samples on MalwareBazaar
TLSH 89A5FA3CADD4223756BBD6BAC9F55ACBF912754331526C0E90DB03860A13BA77EC241E
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: mail.praelegal.de
Sending IP: 31.7.33.42
From: Salih Önder | PraeLegal <salihonder@praelegal.de>
Subject: RE: PO# XFf10142020 Delivery before 12th December 2020
Attachment: Xf10142020PurchaseOrder766657.zip (contains "Xf10142020PurchaseOrder766657.exe")

MassLogger SMTP exfil server:
smtp.yandex.ru:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Trojan.Inject4.3181.15341.27248.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file
DNS request
Sending an HTTP GET request
Creating a window
Launching a process
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
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:
100 / 100
Link:
https://www.joesandbox.com/analysis/491414
Signature
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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 harvest and steal browser information (history, passwords, etc)
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: 298282 Sample: Xf10142020PurchaseOrder766657.exe Startdate: 14/10/2020 Architecture: WINDOWS Score: 100 64 Malicious sample detected (through community Yara rule) 2->64 66 Yara detected MassLogger RAT 2->66 68 May check the online IP address of the machine 2->68 70 6 other signatures 2->70 11 Xf10142020PurchaseOrder766657.exe 1 2->11         started        14 apdate.exe 2->14         started        process3 signatures4 74 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->74 76 Injects a PE file into a foreign processes 11->76 16 Xf10142020PurchaseOrder766657.exe 15 7 11->16         started        21 apdate.exe 14->21         started        process5 dnsIp6 52 elb097307-934924932.us-east-1.elb.amazonaws.com 174.129.214.20, 49762, 80 AMAZON-AESUS United States 16->52 54 nagano-19599.herokussl.com 16->54 56 api.ipify.org 16->56 50 C:\Users\user\AppData\Roaming\...\apdate.exe, PE32 16->50 dropped 72 Adds a directory exclusion to Windows Defender 16->72 23 cmd.exe 16->23         started        25 cmd.exe 1 16->25         started        27 powershell.exe 25 16->27         started        file7 signatures8 process9 process10 29 apdate.exe 23->29         started        32 conhost.exe 23->32         started        34 timeout.exe 23->34         started        36 conhost.exe 25->36         started        38 schtasks.exe 25->38         started        40 conhost.exe 27->40         started        signatures11 84 Injects a PE file into a foreign processes 29->84 42 apdate.exe 29->42         started        process12 dnsIp13 58 54.235.83.248, 49775, 80 AMAZON-AESUS United States 42->58 60 192.168.2.1 unknown unknown 42->60 62 3 other IPs or domains 42->62 78 Tries to steal Mail credentials (via file access) 42->78 80 Tries to harvest and steal browser information (history, passwords, etc) 42->80 82 Adds a directory exclusion to Windows Defender 42->82 46 powershell.exe 42->46         started        signatures14 process15 process16 48 conhost.exe 46->48         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cfde16e103af9e59944d44d7f12e5755313948273cd64237df2dce50811866db/
Threat name:
ByteCode-MSIL.Infostealer.Maslog
Create hunting rule
Status:
Malicious
First seen:
2020-10-14 07:02:16 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z7pbnyidv6pftfcnitl7clsxkuytssbhhtleen67fxhfbaiym3nq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
14c72397b03fe9de15f1d70e2f8f75a52d92b372423edd1d73411f489c47cf62
MassLogger
21ada34a203f6a238393d69d9c0aebc680f65e9eb0a9bc472f558709e85c88ee
MassLogger
2e6b47bbdb9f281c1432dc63d92d67ca891adf87e20edfa456789c8724a4b7b1
MassLogger
3662a3b002337c0da8ad94925e3c183f0a2d35b0932f9d40b89643335f10564d
MassLogger
703698c23e6a2e0a7fa23c5868bb97bccdca0389b47b0ea33a013a959a4a83e6
MassLogger
8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1
MassLogger
8f27711d32521c92105a49bdb78e5042ac10e3fb635306b8e32fc198704e617d
MassLogger
c7f039cff52a5c1de59fb782259f3fd2054946e9fca03d364f61c7977128dcca
MassLogger
dd5b3d947daecc91aa36e124a5bdcb1cb6b10fdb2d905a9a1e067bd6bdb4065b
MassLogger
f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857
MassLogger
+ 312 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
stealer spyware family:masslogger
Link:
https://tria.ge/reports/201014-4hsfzzzec6/
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
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
cfde16e103af9e59944d44d7f12e5755313948273cd64237df2dce50811866db
MD5 hash:
46f407da71637ad9654f4528fc06b504
SHA1 hash:
b682a05a1464e6a56a2334df1322bdb03cdbac1a
Link:
https://www.unpac.me/results/81b85524-b975-4cff-ad1d-162e314cd757/
SH256 hash:
d5faa387fb2bbef87ac31b3d4ae1c89bb87ac4a13e8c422ef0c320340920be73
MD5 hash:
29d4a850868ead7b9fbe0942c96c4388
SHA1 hash:
f5ee7973e0fba52523faa5e9cc4e302679fbc269
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/81b85524-b975-4cff-ad1d-162e314cd757/
Parent samples :
2e6b47bbdb9f281c1432dc63d92d67ca891adf87e20edfa456789c8724a4b7b1
cfde16e103af9e59944d44d7f12e5755313948273cd64237df2dce50811866db
SH256 hash:
f697199c7580d4fc2b4e40bcc10844702e48d3c1cdcef31c80fa16d7c221d1ff
MD5 hash:
debfda4f28657974a0f7d1c8a01a133e
SHA1 hash:
3d5f4d8c49c7bdc9cd221c36430160fad82baba6
Link:
https://www.unpac.me/results/81b85524-b975-4cff-ad1d-162e314cd757/
SH256 hash:
165b6353a27653c087637f372f70713e4e0af658e87f03ba0703d8b975525243
MD5 hash:
112730ad698bcb62cfb8c64c4862640a
SHA1 hash:
6b42b1f3f372785c40b4f80c35d6aa2e0d012429
Link:
https://www.unpac.me/results/81b85524-b975-4cff-ad1d-162e314cd757/
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/cfde16e103af9e59944d44d7f12e5755313948273cd64237df2dce50811866db

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
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

zip 4d098e12e21205c68dfe995b5e4ca60ab2fef5769f7eff8fcf63664fd154f534

MassLogger

Executable exe cfde16e103af9e59944d44d7f12e5755313948273cd64237df2dce50811866db

(this sample)

  
Dropped by
MD5 a8028f94a9bb825aa340cce3fe0d0b0d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/70920/
  
Dropped by
SHA256 4d098e12e21205c68dfe995b5e4ca60ab2fef5769f7eff8fcf63664fd154f534

Comments