MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a77e9393c4000e96d483a677574a78f004e87837013f7bd1414567d436014b6e. 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: a77e9393c4000e96d483a677574a78f004e87837013f7bd1414567d436014b6e
SHA3-384 hash: 178f3180cb17a9f3b9a1e7dce5f289dd2603afd00b20b980858b0d92be2973ddf91e113113debada6026c356626b3561
SHA1 hash: b1d43552e56ba2b43f827de43c330c74b03c0f04
MD5 hash: 28602636106ec0fdda17fc15cd7b898b
humanhash: maryland-beer-earth-orange
File name:yTRMJcN2yEaM43H.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'378'304 bytes
First seen:2020-07-17 05:30:38 UTC
Last seen:2020-07-17 06:46:43 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 24576:K2EymiNfgUnw6qJ1tMgT2kR5B0TC05jCm9hgEg:DEymidnqJot7Jr9uEg
Threatray 1'457 similar samples on MalwareBazaar
TLSH 5755F1CC3550B99EC85E8C728954DC30A6206D63F6FBD20763D36D9FB53DA96CE002A2
Reporter JAMESWT_WT
Tags:MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/27210/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.22568.19650.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/388954
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
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 MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246667 Sample: yTRMJcN2yEaM43H.exe Startdate: 18/07/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 7 other signatures 2->39 7 yTRMJcN2yEaM43H.exe 5 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\FmjhPZsv.exe, PE32 7->19 dropped 21 C:\Users\...\FmjhPZsv.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpC955.tmp, XML 7->23 dropped 25 C:\Users\user\...\yTRMJcN2yEaM43H.exe.log, ASCII 7->25 dropped 41 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->41 43 Injects a PE file into a foreign processes 7->43 45 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->45 11 yTRMJcN2yEaM43H.exe 15 6 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 mail.privateemail.com 198.54.122.60, 49732, 587 NAMECHEAP-NETUS United States 11->27 29 elb097307-934924932.us-east-1.elb.amazonaws.com 54.225.182.172, 49731, 80 AMAZON-AESUS United States 11->29 31 2 other IPs or domains 11->31 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 17 conhost.exe 15->17         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a77e9393c4000e96d483a677574a78f004e87837013f7bd1414567d436014b6e/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-16 22:06:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u57jhe6eaahjnveduz3vosty6acoq6bxae7xxukbivt5inqbjnxa._file
Verdict:
malicious
Similar samples:
015da4d338b5ccb6a5ae37b29a30bdd80445280746011616535a26c60b4be0bb
MassLogger
10c341f03698c730a4591d844c0d563f19e4a6b87934b45ff0447bd57808bb32
MassLogger
3f6a4df2b41a71afe07a307c62bd00cc81b42e561fb551d185baf7141867484e
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3f97dfbae448b3eb28d6f08f666029037d890dc94dbce0e372b4dd2a63fd037f
MassLogger
7fb6e9a788b18806469167cf64458dd590122593a04489cf70bb70434905a246
MassLogger
bfc3d6d12ca4a76297cf920edbdfe491c6be14e42e6b9c0722ff5efb5bfb6377
MassLogger
c6117524f5e25ef7de2eaa1e4693be4f0ebdc1548b3a8b170f96c4b1aeeb57c2
MassLogger
cae8cc4a40faf9c3474f86baf427e7eb1c63c4d75afec8a99da5f616752ffbdd
MassLogger
dccd0903a7912382f20b16beb29d93c14435e41ee655c2e88740879089d56fca
MassLogger
fe6e78fc04cc85915c056447a608233c7094caf911cc8de0e0491184cdaf056b
MassLogger
+ 1'447 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200717-7kd8t5l2ge/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a77e9393c4000e96d483a677574a78f004e87837013f7bd1414567d436014b6e

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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:masslogger_gcch
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 a77e9393c4000e96d483a677574a78f004e87837013f7bd1414567d436014b6e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/413841/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/27210/

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