MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99f8dbdf69123254d0cc94494f7ec6b9bc0c1cf649f8c01fb0997d403172f335. 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


a310Logger


Vendor detections: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99f8dbdf69123254d0cc94494f7ec6b9bc0c1cf649f8c01fb0997d403172f335
SHA3-384 hash: 02d44aae7a39e57b72f21ad67e158bcbbdba6febe043b3ad436c654464222512273ed71bec79cc117ef0e65a11e3f4df
SHA1 hash: eecc7d12c93aaf1cf9695e3a4cc3543df001c6fd
MD5 hash: 0b9f3a2e2f2a868a47ab93cd39ff5f6b
humanhash: leopard-mobile-don-monkey
File name:Quotation PC mm single Sheets 002.PDF.exe
Download: download sample
Signature a310Logger
Create hunting rule
File size:790'687 bytes
First seen:2021-11-18 13:42:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 24576:zURtbMnmFCScTUl9Dpsz+YFU2gaocbaaKg5n:z+tMmFCn0Dps9ZgaoYaNWn
TLSH T1A2F412119729DA2AC7C116BAC499F7F4DB7C4CD8E82906978B313E683A397CD2CE5053
File icon (PE):PE icon
dhash icon dcdae8e2f2f8cce6 (1 x a310Logger)
Reporter GovCERT_CH
Tags:a310logger exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation PC mm single Sheets 002.PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-11-18 13:57:15 UTC
Tags:
installer stealer
Link:
https://app.any.run/tasks/abccfb08-c7a0-4497-90c2-064fe3f1d823

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Сreating synchronization primitives
DNS request
Launching a process
Reading critical registry keys
Sending a custom TCP request
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/6196586a2695a62af9f30782/reports/a52c5bb1-a8f4-4550-8a94-588353fa2b24/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
BluStealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6c790d99-f180-4ad6-8af4-d7ac29f6558f
Result
Threat name:
a310Logger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/891984
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Double Extension
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected a310Logger
Yara detected Generic Dropper
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99f8dbdf69123254d0cc94494f7ec6b9bc0c1cf649f8c01fb0997d403172f335/
Threat name:
Win32.Trojan.InjectorX
Create hunting rule
Status:
Malicious
First seen:
2021-11-17 05:55:01 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=th4nxx3jcizfjugmsreu67wgxg6ayhhwjh4mah5qtf6uamls6m2q._file
Verdict:
malicious
Result
Malware family:
blustealer
Create hunting rule
Score:
  10/10
Tags:
family:blustealer collection spyware stealer
Link:
https://tria.ge/reports/211118-qz9dnsdcbp/
Behaviour
Modifies system certificate store
Script User-Agent
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Accesses cryptocurrency files/wallets, possible credential harvesting
Loads dropped DLL
BluStealer
Malware Config
C2 Extraction:
https://api.telegram.org/bot2144731565:AAEaJV8hCnC50v7Bb89dTgL_cL6E6viYAUY/sendMessage?chat_id=1293496579
Unpacked files
SH256 hash:
99f8dbdf69123254d0cc94494f7ec6b9bc0c1cf649f8c01fb0997d403172f335
MD5 hash:
0b9f3a2e2f2a868a47ab93cd39ff5f6b
SHA1 hash:
eecc7d12c93aaf1cf9695e3a4cc3543df001c6fd
Link:
https://www.unpac.me/results/a374950b-358c-4ce8-8e73-f285b32af082/
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/99f8dbdf69123254d0cc94494f7ec6b9bc0c1cf649f8c01fb0997d403172f335

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

a310Logger

Executable exe 99f8dbdf69123254d0cc94494f7ec6b9bc0c1cf649f8c01fb0997d403172f335

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/207251/

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