MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7cfa62ab7a592f04b4268ad35e2a90739666f9d5e91eaa5808dd8ba11239f43d. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7cfa62ab7a592f04b4268ad35e2a90739666f9d5e91eaa5808dd8ba11239f43d
SHA3-384 hash: 96f2f9d243a9e2d7f7e1f557a7db907ddc1ef3ff0277b67ffd3961f172737cc6afa614b09e37a114948f1ff1142647f7
SHA1 hash: fc249ed082cb7253b9a73d68942ac6b7f26ae1d4
MD5 hash: 36249bdf1ee33e6b6e81ad8171efab04
humanhash: five-helium-tango-butter
File name:NSTE PO#3625.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'098'752 bytes
First seen:2020-08-11 11:05:46 UTC
Last seen:2020-08-11 12:14:06 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 24576:qNJbqQAqeH7PREHNjhuLbD7l4iHYY2YiKX:+2tuHN4H14AcK
Threatray 707 similar samples on MalwareBazaar
TLSH AC35CF98315836DDC5DBCD3685AC2C60BA613C671B0BC50A91273E9DBE3DB878F506A3
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: s111-ir-cpanel-trade.maindns.net
Sending IP: 185.165.116.18
From: AISHWARYA GITA <salesmmt@acemicromatic.com>
Reply-To: infommt@acemicromatic.com
Subject: Re:price list#3625
Attachment: PO3625 .rar (contains "NSTE PO#3625.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/43267/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.11262.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/418534
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
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 steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 261555 Sample: NSTE PO#3625.exe Startdate: 11/08/2020 Architecture: WINDOWS Score: 100 58 Found malware configuration 2->58 60 Yara detected MassLogger RAT 2->60 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 2->62 64 7 other signatures 2->64 9 NSTE PO#3625.exe 1 2->9         started        13 vlc.exe 2->13         started        process3 file4 44 C:\Users\user\...44STE PO#3625.exe.log, ASCII 9->44 dropped 70 Injects a PE file into a foreign processes 9->70 15 NSTE PO#3625.exe 15 7 9->15         started        72 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 13->72 74 Machine Learning detection for dropped file 13->74 19 vlc.exe 13->19         started        signatures5 process6 dnsIp7 52 elb097307-934924932.us-east-1.elb.amazonaws.com 54.197.225.198, 49744, 80 AMAZON-AESUS United States 15->52 54 192.168.2.1 unknown unknown 15->54 56 2 other IPs or domains 15->56 42 C:\Users\user\VideoLAN\vlc.exe, PE32 15->42 dropped 21 cmd.exe 1 15->21         started        23 cmd.exe 1 15->23         started        file8 process9 process10 25 vlc.exe 1 21->25         started        28 conhost.exe 21->28         started        30 timeout.exe 1 21->30         started        32 conhost.exe 21->32         started        34 conhost.exe 23->34         started        36 schtasks.exe 1 23->36         started        signatures11 68 Injects a PE file into a foreign processes 25->68 38 vlc.exe 14 6 25->38         started        process12 dnsIp13 46 smtp.gmail.com 172.253.120.109, 49757, 587 GOOGLEUS United States 38->46 48 184.73.172.216, 49747, 80 AMAZON-AESUS United States 38->48 50 3 other IPs or domains 38->50 66 Tries to steal Mail credentials (via file access) 38->66 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7cfa62ab7a592f04b4268ad35e2a90739666f9d5e91eaa5808dd8ba11239f43d/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-11 11:07:05 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pt5gfk32lexqjnbgrljv4kuqoolgn6ov5epkuwai3wf2cerz6q6q._file
Verdict:
unknown
Similar samples:
0e8c4ea04759257bb250d60f1a3b1988888044fd06ce2f9fccef81b047eee4bc
MassLogger
14a6d8b3111df647667bfe418bfd55354a13e1b7b3f69e229d9495dc6fd6ab34
MassLogger
89af10238032ab225e998887850c3910abd7183e67018abfe56b0bdebf2d50d9
MassLogger
8e86d9234855b1ecd39a173027ac4486f443b4eb1896e28e8b2e79212107e762
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978d501d754314e4e9fb7d64e455a83407321b2410ac0682181d978f8973bf56
MassLogger
a4df7bd8daff5a4723055c7589244e1719c45223f09f42b06a621aad5ee1f2f4
MassLogger
bbf5829871a9c0e6348a4cbab3327df93fd5196b611afafef770cf85e85bfd6c
MassLogger
ef30ffc2d3ba3ec27cfaee6dd4e86f0fa4e2c8799e341affa924e0763d51ed1a
MassLogger
fa1dd731e06f5a7470f45a3f09f0b39d2e236d022c9a9d6e52828e8214c5893e
MassLogger
fc9d50ccd0d0a267f1fa1003607ea81931a9c1f857798c3b10af9b5408f01437
MassLogger
+ 697 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware spyware stealer family:masslogger
Link:
https://tria.ge/reports/200811-yxwzn56r16/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger
MassLogger log file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.66
Link:
https://yomi.yoroi.company/submissions/7cfa62ab7a592f04b4268ad35e2a90739666f9d5e91eaa5808dd8ba11239f43d

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

rar a8aff5a68a77d5f982f738b0f53899248ac1ac4639f1dc1fd8e4ab0b8755263b

MassLogger

Executable exe 7cfa62ab7a592f04b4268ad35e2a90739666f9d5e91eaa5808dd8ba11239f43d

(this sample)

  
Dropped by
MD5 69dad045fa75c1e7ec7af7eee983f5ee
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/43267/
  
Dropped by
SHA256 a8aff5a68a77d5f982f738b0f53899248ac1ac4639f1dc1fd8e4ab0b8755263b

Comments