MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 24a6ec83c1a75f4bfefa0e5df247fbc354cea37c917da05a38e2687b7b26c464. 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


Intelligence File information Yara 2 Comments

SHA256 hash: 24a6ec83c1a75f4bfefa0e5df247fbc354cea37c917da05a38e2687b7b26c464
SHA3-384 hash: fdc7c1133369342f54e7964467a737cca8aa5e68d9241d44e32b781e815f1784a4b6594945ef8c26492ac01e270ca159
SHA1 hash: 033643dab0f443d8b50b4218d8bbe956e03af6ff
MD5 hash: 60a03e78b2781f94f1033859b6b9f2fd
humanhash: november-ten-georgia-don
File name:QUO29393.exe
Download: download sample
Signature MassLogger
File size:1'195'520 bytes
First seen:2020-07-31 10:18:18 UTC
Last seen:2020-07-31 11:08:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 24576:Eed1008SjIQ81QTUrht3BFiAKoUxjMHdjtCVw+IvlT:Z1ZYrn3BFiAyRUdjtCa+I
TLSH 8245F1447B50E50EC26F8F76CAD44900EAB8E5D6571BE38774C537AF28CE3AEA901271
Reporter @abuse_ch
Tags:exe MassLogger


Twitter
@abuse_ch
Malspam distributing MassLogger:

HELO: abcpresident.com
Sending IP: 209.58.149.66
From: jayanti@abcpresident.com
Subject: REQUEST FOR QUOTATION
Attachment: QUO29393.rar (contains "QUO29393.exe")

MassLogger SMTP exfil server:
smtp.yandex.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
29
Origin country :
US US
Mail intelligence
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
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 steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 255291 Sample: QUO29393.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 100 32 g.msn.com 2->32 34 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->34 42 Found malware configuration 2->42 44 Sigma detected: Scheduled temp file as task from temp location 2->44 46 Yara detected MassLogger RAT 2->46 48 6 other signatures 2->48 8 QUO29393.exe 5 2->8         started        signatures3 process4 file5 24 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\Local\...\tmp3DC4.tmp, XML 8->26 dropped 28 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->28 dropped 30 C:\Users\user\AppData\...\QUO29393.exe.log, ASCII 8->30 dropped 50 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->50 12 RegSvcs.exe 15 5 8->12         started        16 RegSvcs.exe 8->16         started        18 schtasks.exe 1 8->18         started        20 RegSvcs.exe 8->20         started        signatures6 process7 dnsIp8 36 elb097307-934924932.us-east-1.elb.amazonaws.com 54.197.225.198, 49728, 80 AMAZON-AESUS United States 12->36 38 nagano-19599.herokussl.com 12->38 40 api.ipify.org 12->40 52 Tries to steal Mail credentials (via file access) 12->52 54 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 16->54 22 conhost.exe 18->22         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-30 21:29:58 UTC
AV detection:
23 of 31 (74.19%)
Threat level
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
ransomware stealer spyware family:masslogger
Behaviour
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads user/profile data of web browsers
MassLogger log file
MassLogger
Threat name:
AgentTesla
Score:
1.00

Yara Signatures


Rule name:masslogger_gcch
Author:govcert_ch
Rule name:win_masslogger_w0
Author:govcert_ch

File information


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

Malspam

MassLogger

Executable exe 24a6ec83c1a75f4bfefa0e5df247fbc354cea37c917da05a38e2687b7b26c464

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments