MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91433fed32b520cfc98adb3cd6bae0a973117440474e47eff440bddb37262287. 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: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91433fed32b520cfc98adb3cd6bae0a973117440474e47eff440bddb37262287
SHA3-384 hash: 7604d6198d3240a5373c80de046a6c1f847035525f9c67effe47b03582543df6337e0f276f4e4977eb7f39ccb040afee
SHA1 hash: f50f2d073ddc8011c0dd550af572f999f3c284aa
MD5 hash: 768bba878ba405a6f1b06de6d763ae47
humanhash: item-maine-winter-iowa
File name:Ekstre.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'256'448 bytes
First seen:2020-08-05 11:43:31 UTC
Last seen:Never
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:nkKjZASMyF5+w0i2niYpfW4DS20atR2ru4R7+S8IfTD1mY8h:nXZASMygnZpfW0tOJjrD18
Threatray 719 similar samples on MalwareBazaar
TLSH 71453B3639824925C56E077EC4B59DC0A7717A8A3792C71F3147138C6E13BAFFB0A46A
Reporter abuse_ch
Tags:exe geo MassLogger TUR ZiraatBank


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: ileti.ziraatbank.com.tr
Sending IP: 45.11.19.43
From: ZIRAAT BANKASI <ziraatbank@ileti.ziraatbank.com.tr>
Reply-To: ZIRAAT BANKASI <ziraatbank@ileti.ziraatbank.com.tr>
Subject: T.C. Ziraat Bankası Hesap Ekstresi
Attachment: Ekstre.r00 (contains "Ekstre.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39474/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/411037
Signature
.NET source code contains very large array initializations
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91433fed32b520cfc98adb3cd6bae0a973117440474e47eff440bddb37262287/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 11:45:08 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sfbt73jswuqm7smk3m6nnoxavfzrc5cai5hep37uic65wnzgekdq._file
Verdict:
suspicious
Similar samples:
117dfe206b81a8a8f4538a70d46e6d0366367219318ff971b5039fbfc0963234
MassLogger
1fe24761cfcb48d6d3a4f1ad9d02c2429c7f567fda2bda78f5d12c89717c6285
MassLogger
3458232b533e946c63311cd8241c2a390868950d89c3f5e3aaac3f2413c9b82a
MassLogger
472da59ada8f3b584eaaedc80e852a5156e2448a0e1a3763234dbc3a62bbfd6e
MassLogger
50a57ceaa2112a0aab709769501b2a09db7786f5c67d8d61d07c67a2b25389f7
MassLogger
89b4121aae370dd8b644fc0e426e24d17087b25e1646aaf02e56b147627efd16
MassLogger
90358a03f8a15f765f95c720f314d9ad8178e6ed93fff8ad9bb023630f0bd44a
MassLogger
afe4edd3d00f95f9dbab6934ae1eb0a7354dc1f950182a27774ece0134a0166b
MassLogger
d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9
MassLogger
e90c07313d393becfb64e2c5b80b0440f2689fc7bd77b7dadf761dd3aa128f98
MassLogger
+ 709 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200805-1y1c94xpvn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Program crash
Program crash
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/91433fed32b520cfc98adb3cd6bae0a973117440474e47eff440bddb37262287

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 a2454c91d877ef3974aaab31982f16a0b30a493c15e36d6f5a244395b0c521e6

MassLogger

Executable exe 91433fed32b520cfc98adb3cd6bae0a973117440474e47eff440bddb37262287

(this sample)

  
Dropped by
MD5 e8393f2b6565f2ad10534d49101a91b0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39474/
  
Dropped by
SHA256 a2454c91d877ef3974aaab31982f16a0b30a493c15e36d6f5a244395b0c521e6

Comments