MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 434b95216fefcfdef179cbafe780e88243b818bce4ab11b88863bedc4a9cc0d0. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 434b95216fefcfdef179cbafe780e88243b818bce4ab11b88863bedc4a9cc0d0
SHA3-384 hash: ac7375a0e749c9f1b51105fa76154c7ca32b7953efbcbf8154827ec5593f36795428bc7d8c29cf785a17a801d0fb92fc
SHA1 hash: 596462d29639d9db0661caab6672b69450790da3
MD5 hash: 484cd145d2803a3cb8738849762e380d
humanhash: crazy-triple-river-freddie
File name:PO_PO2542_202008141707.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'342'976 bytes
First seen:2020-08-14 10:25:06 UTC
Last seen:2020-08-14 11:01:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:/S1s0bkLnjoo3bJbWAfJ/ElxpvmmixAfiB7M2yzgO3+:Ss0bubZ1qTvmmeAfipCz
Threatray 550 similar samples on MalwareBazaar
TLSH 9E55F73539834935C939423280989EC2F332964A3B96CB2F70DB938D5E1339FBB9955D
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: IBM.US.COM
Sending IP: 45.11.19.43
From: PDONOTIFICATIONS@IBM.US.COM
Reply-To: PDONOTIFICATIONS@IBM.US.COM
Subject: Purchase Order No.: PO2542
Attachment: PO_PO2542_202008141707.r00 (contains "PO_PO2542_202008141707.exe")

MassLogger SMTP exfil email address:
mail.aydan.com.tr

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Ispy
Create hunting rule
Link:
https://www.capesandbox.com/analysis/45805/
Detection(s):
SecuriteInfo.com.Generic.mg.484cd145d2803a3c.25636.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
63 / 100
Link:
https://www.joesandbox.com/analysis/429423
Signature
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Creates executable files without a name
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
May check the online IP address of the machine
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267191 Sample: PO_PO2542_202008141707.exe Startdate: 16/08/2020 Architecture: WINDOWS Score: 63 40 Yara detected MassLogger RAT 2->40 42 May check the online IP address of the machine 2->42 44 Initial sample is a PE file and has a suspicious name 2->44 46 2 other signatures 2->46 7 PO_PO2542_202008141707.exe 7 2->7         started        11 pcalua.exe 1 1 2->11         started        13 pcalua.exe 1 2->13         started        process3 file4 28 C:\Users\user\Desktop\.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 7->30 dropped 32 C:\Users\user\Desktop\.exe:Zone.Identifier, ASCII 7->32 dropped 50 Creates executable files without a name 7->50 15 .exe 3 7->15         started        18 cmd.exe 1 7->18         started        signatures5 process6 signatures7 52 Writes to foreign memory regions 15->52 54 Allocates memory in foreign processes 15->54 56 Injects a PE file into a foreign processes 15->56 20 RegAsm.exe 15 3 15->20         started        23 reg.exe 1 1 18->23         started        26 conhost.exe 18->26         started        process8 dnsIp9 34 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.118.184, 49737, 80 AMAZON-AESUS United States 20->34 36 nagano-19599.herokussl.com 20->36 38 api.ipify.org 20->38 48 Creates an autostart registry key pointing to binary in C:\Windows 23->48 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/434b95216fefcfdef179cbafe780e88243b818bce4ab11b88863bedc4a9cc0d0/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-14 10:27:05 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=infzkilp57h554lzzox6pahiqjb3qgf44svrdoeimo7nysu4ydia._file
Verdict:
unknown
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a1445c88428ea52370d4379824bb1ebfac9c4a7ca172167b035097ee1a95485e
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MassLogger
+ 540 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware stealer spyware family:masslogger persistence
Link:
https://tria.ge/reports/200814-5p7677zxr2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/434b95216fefcfdef179cbafe780e88243b818bce4ab11b88863bedc4a9cc0d0

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

r00 09d673331f29b28df8339e1dde3bd5fd21ad5d6d633f10f0037976c78b847b8c

MassLogger

Executable exe 434b95216fefcfdef179cbafe780e88243b818bce4ab11b88863bedc4a9cc0d0

(this sample)

  
Dropped by
MD5 5e806db778b06ae942005da1a98901ab
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 09d673331f29b28df8339e1dde3bd5fd21ad5d6d633f10f0037976c78b847b8c
Cape
Cape
https://www.capesandbox.com/analysis/45805/

Comments