MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99318ec61c4740a4cebe8c26bcd0c51f7d360773d49e13f0010d26f076afb8a1. 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


GuLoader


Vendor detections: 6


Intelligence 6 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99318ec61c4740a4cebe8c26bcd0c51f7d360773d49e13f0010d26f076afb8a1
SHA3-384 hash: 78e80cadec01e7b9d102771757b6ffe615d831bb35e25994592e89b76afef43d3f3d41bade68593eb05204bdf4340510
SHA1 hash: e5e8871c5a2eec411af414b60975f4335488426d
MD5 hash: 518b1d6bbcc8e6858a88908b2c02a51b
humanhash: hotel-juliet-music-bravo
File name:RFQ SBO-700850-1172.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:684'032 bytes
First seen:2020-10-07 12:14:28 UTC
Last seen:2020-10-07 13:01:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c78d30790e99f5a402572e371918a79a (1 x GuLoader, 1 x MassLogger, 1 x HawkEye)
ssdeep 12288:f0O5+h6mY+CRvSt8UEPeXl8kdsC/FFcFNS2XD7Yg4tkiZ:M4JmYbdSi0Xhd5d8NS6D7/iZ
Threatray 21 similar samples on MalwareBazaar
TLSH F1E48D23B1A04833C173273D8C1B57B46B26FE113928AD562BF5DD4C9F3969139292AF
Reporter abuse_ch
Tags:Endurance exe GuLoader


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: 162-241-204-248.unifiedlayer.com
Sending IP: 162.241.204.248
From: Supply1 TSL <supply1@tsl-me.com>
Subject: Enquiry
Attachment: RFQ SBO-700850-1172.PDF.r00 (contains "RFQ SBO-700850-1172.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/68932/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/484102
Signature
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides threads from debuggers
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected Agent Tesla Trojan
Yara detected AgentTesla
Yara detected GuLoader
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 294495 Sample: RFQ SBO-700850-1172.exe Startdate: 07/10/2020 Architecture: WINDOWS Score: 100 23 checkip.us-east-1.prod.check-ip.aws.a2z.com 2->23 25 checkip.check-ip.aws.a2z.com 2->25 27 checkip.amazonaws.com 2->27 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 13 other signatures 2->49 9 RFQ SBO-700850-1172.exe 2->9         started        signatures3 process4 signatures5 59 Maps a DLL or memory area into another process 9->59 12 RFQ SBO-700850-1172.exe 1 9->12         started        process6 signatures7 61 Tries to detect Any.run 12->61 63 Hides threads from debuggers 12->63 15 RFQ SBO-700850-1172.exe 6 12->15         started        process8 dnsIp9 33 googlehosted.l.googleusercontent.com 216.58.215.225, 443, 49730 GOOGLEUS United States 15->33 35 doc-0c-3k-docs.googleusercontent.com 15->35 37 Tries to detect Any.run 15->37 39 Maps a DLL or memory area into another process 15->39 41 Hides threads from debuggers 15->41 19 RFQ SBO-700850-1172.exe 16 15->19         started        signatures10 process11 dnsIp12 29 enmark.com.my 110.4.45.145, 49733, 49735, 587 EXABYTES-AS-APExaBytesNetworkSdnBhdMY Malaysia 19->29 31 mail.enmark.com.my 19->31 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->51 53 Tries to steal Mail credentials (via file access) 19->53 55 Tries to harvest and steal ftp login credentials 19->55 57 Tries to harvest and steal browser information (history, passwords, etc) 19->57 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99318ec61c4740a4cebe8c26bcd0c51f7d360773d49e13f0010d26f076afb8a1/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-10-07 11:12:20 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=teyy5rq4i5akjtv6rqtlzugfd56tmb3t2spbh4abbutpa5vpxcqq._file
Verdict:
malicious
Label(s):
guloader
Create hunting rule
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+ 11 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/201007-lwbsw6yvs2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
99318ec61c4740a4cebe8c26bcd0c51f7d360773d49e13f0010d26f076afb8a1
MD5 hash:
518b1d6bbcc8e6858a88908b2c02a51b
SHA1 hash:
e5e8871c5a2eec411af414b60975f4335488426d
Link:
https://www.unpac.me/results/a7370e25-0d61-4cb5-9c86-c872c8f965ae/
SH256 hash:
1b53720e18c155729e8f2959f24efa68e86e0f6bfef326eda809b8bffde739ce
MD5 hash:
3bf3b0af89a4c1376b8925339cfb57a4
SHA1 hash:
2fb3053de2e06a49c824a84d7c0aae95af67fc20
Link:
https://www.unpac.me/results/a7370e25-0d61-4cb5-9c86-c872c8f965ae/
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/99318ec61c4740a4cebe8c26bcd0c51f7d360773d49e13f0010d26f076afb8a1

File information

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

Malspam

GuLoader

r00 4937664a6f809558a30616914e13a552756b2789455fad77b245a752b5e8a35b

GuLoader

Executable exe 99318ec61c4740a4cebe8c26bcd0c51f7d360773d49e13f0010d26f076afb8a1

(this sample)

  
Dropped by
MD5 ae8e036e620bb52b57597c02715467a3
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 4937664a6f809558a30616914e13a552756b2789455fad77b245a752b5e8a35b
Cape
Cape
https://www.capesandbox.com/analysis/68932/

Comments