MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d77ac7f34322c49cab964e1899d048f0a8d93b958ccc1d0942380529eb41fe18. 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: d77ac7f34322c49cab964e1899d048f0a8d93b958ccc1d0942380529eb41fe18
SHA3-384 hash: fc9347cf6d1d79567c5557484c3439422c52dba62be703bd1de5ff6bf549e83e9a09fc77bb4f0bf7434de8a90920da55
SHA1 hash: ce7bf91478fc8dfa2086714385de098c8f9a2d3a
MD5 hash: 9183e45788b5e6238a667af7eb5fd411
humanhash: nuts-nevada-minnesota-bravo
File name:9183e45788b5e6238a667af7eb5fd411.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'250'816 bytes
First seen:2020-07-29 07:40:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e8ef47e85c79ee608837cc415c05c43b (15 x AgentTesla, 5 x NanoCore, 5 x Loki)
ssdeep 12288:LRXtpnVH9Az44BnvOCDhzcl0UdKndi2bnXaEAqpugc7Vuj8J3c2++ccHr9dPc5w8:Lfd8z4byilBdlGXUqJbj8J+W9g4Lyh40
Threatray 1'782 similar samples on MalwareBazaar
TLSH 9445E122AEE14833D167DE789C1B5764DB3ABE102A3859452FFC1C4C9F39781386E297
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
MassLogger SMTP exfil server:
mail.privateemail.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
63
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/34529/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.19347.10936.15784.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file
Reading Telegram data
Reading critical registry keys
Moving a recently created file
Deleting a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Enabling autorun with Startup directory
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/401868
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject code into remote processes
Creates files in alternative data streams (ADS)
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 253244 Sample: fN6fnzk1To.exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 40 g.msn.com 2->40 42 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->42 56 Yara detected MassLogger RAT 2->56 58 Yara detected AntiVM_3 2->58 60 Sigma detected: Drops script at startup location 2->60 62 3 other signatures 2->62 9 fN6fnzk1To.exe 2->9         started        12 wscript.exe 1 2->12         started        signatures3 process4 signatures5 72 Contains functionality to inject code into remote processes 9->72 74 Writes to foreign memory regions 9->74 76 Allocates memory in foreign processes 9->76 78 2 other signatures 9->78 14 notepad.exe 5 9->14         started        18 deyuiiim.exe 12->18         started        process6 file7 34 C:\Users\user\AppData\...\deyuiiim.exe, PE32 14->34 dropped 36 C:\Users\...\deyuiiim.exe:Zone.Identifier, ASCII 14->36 dropped 38 C:\Users\user\AppData\Roaming\...\web.vbs, ASCII 14->38 dropped 82 Creates files in alternative data streams (ADS) 14->82 84 Drops VBS files to the startup folder 14->84 20 deyuiiim.exe 14->20         started        86 Maps a DLL or memory area into another process 18->86 23 deyuiiim.exe 6 18->23         started        26 deyuiiim.exe 18->26         started        signatures8 process9 dnsIp10 64 Detected unpacking (changes PE section rights) 20->64 66 Detected unpacking (creates a PE file in dynamic memory) 20->66 68 Detected unpacking (overwrites its own PE header) 20->68 70 4 other signatures 20->70 28 deyuiiim.exe 15 6 20->28         started        32 deyuiiim.exe 20->32         started        44 174.129.255.253, 49730, 80 AMAZON-AESUS United States 23->44 46 192.168.2.1 unknown unknown 23->46 48 3 other IPs or domains 23->48 signatures11 process12 dnsIp13 50 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.83.248, 49723, 80 AMAZON-AESUS United States 28->50 52 nagano-19599.herokussl.com 28->52 54 api.ipify.org 28->54 80 Tries to steal Mail credentials (via file access) 28->80 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d77ac7f34322c49cab964e1899d048f0a8d93b958ccc1d0942380529eb41fe18/
Threat name:
Win32.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 22:41:46 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=255mp42delcjzk4wjymjtuci6cunso4vrtgb2ckchacst22b7yma._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
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+ 1'772 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/200729-qyvdpra4bs/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
NTFS ADS
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger log file
MassLogger
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/d77ac7f34322c49cab964e1899d048f0a8d93b958ccc1d0942380529eb41fe18

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.

Web download

MassLogger

Executable exe d77ac7f34322c49cab964e1899d048f0a8d93b958ccc1d0942380529eb41fe18

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/34529/
  
URLhaus
https://urlhaus.abuse.ch/url/412466/
  
Delivery method
Distributed via web download

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