MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1dcfc63f38d7f52434d71f4befe9fdb233ebff022ddc1960ce8747d9c3727a59. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1dcfc63f38d7f52434d71f4befe9fdb233ebff022ddc1960ce8747d9c3727a59
SHA3-384 hash: 09cb80abece57e6d37706bceb2b6ca6e719556c363ceb2ef9c8ab65eba27fc9bc7bea751a6c5ba597462227d67c8a5e8
SHA1 hash: 11a79b146338e843dbe83a8f5a1da9d4a6984da5
MD5 hash: ea1aa98412d2be1c693fbe293e12797f
humanhash: beryllium-zebra-pasta-finch
File name:ea1aa98412d2be1c693fbe293e12797f.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:573'440 bytes
First seen:2020-11-01 06:54:29 UTC
Last seen:2020-11-01 08:47:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:bxZ6+xzjCz8OIkc0sHrBk7ihq5VHxRtESmM40l1c26qdzjCnbu9EXmUPHh:b+Fz8OIkcpJGRRutMtlyJa
TLSH 2BC4F19C721037DFC86BD9B2CA940D64AB50A07B431B9247E09326ADD94C69BDF182F7
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/81586/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.4073.24187.29901.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
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.
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/517602
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
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)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 307905 Sample: JdZVwprs2g.exe Startdate: 01/11/2020 Architecture: WINDOWS Score: 100 44 Antivirus detection for dropped file 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 10 other signatures 2->50 6 JdZVwprs2g.exe 1 4 2->6         started        10 vlc.exe 2->10         started        12 vlc.exe 1 2->12         started        process3 file4 24 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 6->24 dropped 26 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 6->26 dropped 28 C:\Users\user\AppData\...\JdZVwprs2g.exe.log, ASCII 6->28 dropped 52 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 6->52 54 Injects a PE file into a foreign processes 6->54 14 JdZVwprs2g.exe 15 2 6->14         started        18 JdZVwprs2g.exe 6->18         started        20 vlc.exe 2 10->20         started        22 vlc.exe 14 2 12->22         started        signatures5 process6 dnsIp7 30 elb097307-934924932.us-east-1.elb.amazonaws.com 50.19.98.74, 49710, 80 AMAZON-AESUS United States 14->30 32 192.168.2.1 unknown unknown 14->32 38 2 other IPs or domains 14->38 56 Tries to steal Mail credentials (via file access) 14->56 34 54.204.14.42, 49721, 80 AMAZON-AESUS United States 20->34 40 2 other IPs or domains 20->40 58 Tries to harvest and steal browser information (history, passwords, etc) 20->58 36 54.235.83.248, 49720, 80 AMAZON-AESUS United States 22->36 42 2 other IPs or domains 22->42 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1dcfc63f38d7f52434d71f4befe9fdb233ebff022ddc1960ce8747d9c3727a59/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-10-30 05:15:53 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger persistence spyware stealer
Link:
https://tria.ge/reports/201101-qg1e764mrs/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
1dcfc63f38d7f52434d71f4befe9fdb233ebff022ddc1960ce8747d9c3727a59
MD5 hash:
ea1aa98412d2be1c693fbe293e12797f
SHA1 hash:
11a79b146338e843dbe83a8f5a1da9d4a6984da5
Link:
https://www.unpac.me/results/eaf55ca5-912f-48ad-b56e-4051ffaf454e/
SH256 hash:
b0011f1ab1c719718cf74e34fd491ba5fa34d23749e40cac3e18b275bbed88f1
MD5 hash:
39bdbe25db04fd9db199043854aa3b58
SHA1 hash:
3af5df3a2ab504d7133cce1a4222d7ae43670569
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/eaf55ca5-912f-48ad-b56e-4051ffaf454e/
Parent samples :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 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/eaf55ca5-912f-48ad-b56e-4051ffaf454e/
SH256 hash:
25c885177d8cc6cc8a74b6334f6da38e542f8a8699c9b073c9af0d375e2de156
MD5 hash:
2f2ad31af3819b35a9a97a29bd223731
SHA1 hash:
7818d189415366af928f4a9b3737721735603bad
Link:
https://www.unpac.me/results/eaf55ca5-912f-48ad-b56e-4051ffaf454e/
SH256 hash:
157769b163d265a907ad3500acfffb8e5b1616abe880521a88e1877c866951c4
MD5 hash:
413632c3850dc1ed599dcd12bb233a62
SHA1 hash:
bbb804955ce5ae557da40fc4db1b4075abc82ce3
Link:
https://www.unpac.me/results/eaf55ca5-912f-48ad-b56e-4051ffaf454e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1dcfc63f38d7f52434d71f4befe9fdb233ebff022ddc1960ce8747d9c3727a59

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
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 1dcfc63f38d7f52434d71f4befe9fdb233ebff022ddc1960ce8747d9c3727a59

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/751145/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/81586/

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