MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5057b3e15343b23d956143c48a195f14e8fb991f5eaaec694ea3edd04419455b. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5057b3e15343b23d956143c48a195f14e8fb991f5eaaec694ea3edd04419455b
SHA3-384 hash: 9179f672f16c4e522a6874bfba2e9ff5450fb4e557e762b5692e9e3baba4e7bb9109a7c47c1b8ec7d5a915fc20db13cd
SHA1 hash: d02aeaeb63072c460c65bb746f66c17ddaa03ad4
MD5 hash: fbb936cf3c39b7f0c77d72f56e844f6b
humanhash: skylark-papa-two-moon
File name:Rewgjqjhqwqn8.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'176'576 bytes
First seen:2020-11-19 06:52:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:jSW+cm+/7mgytz6vq6K8vfcAAO6ASaHwgq5OdM8yWYppNmZJGGG:8GG
Threatray 538 similar samples on MalwareBazaar
TLSH FE453AED119958B3F37E092AA7AEF5B842F3B1175FCA6A881070F57106FB7637601809
Reporter abuse_ch
Tags:exe HostGator MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: gateway22.websitewelcome.com
Sending IP: 192.185.47.206
From: abdulghani@am-memon.com.pk
Subject: AGRI AUTO STAMPING
Attachment: Processing Documents And Drawings_pdf.gz (contains "Rewgjqjhqwqn8.exe")

MassLogger SMTP exfil server:
bh-58.webhostbox.net:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a UDP request
Result
Verdict:
UNKNOWN
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/542642
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5057b3e15343b23d956143c48a195f14e8fb991f5eaaec694ea3edd04419455b/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2020-11-19 06:53:07 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kbl3hyktiozd3flbipciugk7ctupxgi7l2voy2koupw5arazivnq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
nanocorerat
Create hunting rule
Similar samples:
1d3286d29155618ebaf43cfebc809f80daa7d247b9e3c872ea5c48c8109afcd0
MassLogger
1e3f14f932364db4904b69fce12e373e6354f4291dcda0d82a8477a21a9a803f
MassLogger
4e3fbf643241ed1d88707fd4a022c5fb312a75004af4ef18adb0b0fc47e6f5b7
MassLogger
5539e3ed398f0c0680fe2cc490f9790905a180b3c863c1cb6dfb86048c961a39
MassLogger
74162983ed626c05ba65a31fa71a81ff2bc4cabcfe5019a94f63dc32ae873f23
MassLogger
8f24b4adb843172c14b392bcf73f1f46ac8a20091cb22649110bb937f84b281c
MassLogger
a8823b9448d287d781bfaa8eb6b974ed4298a2fb73e6ffc2b9327d8943d238ba
MassLogger
aed72cebee92e2652dddfbec6aa2b2728183b03c62835a2a860480963cae856f
MassLogger
c15a4ca6baeb433bf2c3a74ac3763079baa1ec350dbce6ab54ed2c613e9dd179
MassLogger
c840b9cc10bcbae0e575a43bb9ef69b5cb2ca7c4df9760f155a3ab4d2f689272
MassLogger
+ 528 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger persistence spyware stealer
Link:
https://tria.ge/reports/201119-qbcjzfpj8x/
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:
5057b3e15343b23d956143c48a195f14e8fb991f5eaaec694ea3edd04419455b
MD5 hash:
fbb936cf3c39b7f0c77d72f56e844f6b
SHA1 hash:
d02aeaeb63072c460c65bb746f66c17ddaa03ad4
Link:
https://www.unpac.me/results/2195f9f2-5cfa-40bd-94d3-494e6038db0d/
SH256 hash:
eac1b9be03830778a700e25446c40d3bfb9e82a7fb331568a63b5daf48254509
MD5 hash:
66f6b1ea3fea42be6dd87df35a090e22
SHA1 hash:
04533ce54dc202c895fd08bb0da8d0e067ea559f
Link:
https://www.unpac.me/results/2195f9f2-5cfa-40bd-94d3-494e6038db0d/
SH256 hash:
2eb71eee14ba0e7c2c87a575a1593d65f3c3a3a325b8e0512d699c3a4800b58b
MD5 hash:
f414c080076c4b9d6c8923698afe5c6b
SHA1 hash:
b077975ec51874a6893b88bb552906fd857cd44f
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/2195f9f2-5cfa-40bd-94d3-494e6038db0d/
Parent samples :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 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/2195f9f2-5cfa-40bd-94d3-494e6038db0d/
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Create hunting rule
Author:kevoreilly
Description:MassLogger
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

gz 631824cf82f2b6f1f30f00a82001b7afa1f5bb59e72d775d7796bc1fdfec0c44

MassLogger

Executable exe 5057b3e15343b23d956143c48a195f14e8fb991f5eaaec694ea3edd04419455b

(this sample)

  
Dropped by
MD5 294fd7271da9cd3ed11130a27994a3b1
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 631824cf82f2b6f1f30f00a82001b7afa1f5bb59e72d775d7796bc1fdfec0c44

Comments