MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ea38089348d047f0b0162a6d3404d579a42e355d62e01a7c1bc38c1af764717a. 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: 5

Intelligence 5 IOCs YARA File information Comments

SHA256 hash:	ea38089348d047f0b0162a6d3404d579a42e355d62e01a7c1bc38c1af764717a
SHA3-384 hash:	9a83322942af39e800adc581a223417fe7981e78137cd5a3823155993b3e6a6edab513f811bbecbeb19608e353e43bef
SHA1 hash:	7a01b69e38bf1675d102e4e16e7787bc869f8ec4
MD5 hash:	a2a1b64ca075b12dcedd232ab3b32451
humanhash:	iowa-louisiana-apart-summer
File name:	COVID-19 VACCINE- CURE- UPDATE.Xlxs.exe
Download:	download sample
Signature	GuLoader Create hunting rule
File size:	106'496 bytes
First seen:	2020-04-14 17:31:14 UTC
Last seen:	2020-04-14 18:39:44 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	3f3bce4af1442e967ed3cc6d0ef8cdc4 (1 x GuLoader)
ssdeep	1536:4u/6JjOe+De4KIIi34l0spGGW6Ab+D7j+I1:4j8e4PcRt6SPP1
Threatray	933 similar samples on MalwareBazaar
TLSH	9DA3B461B494FE61CC168EB1AAF4DEE91821BD749DA03607B5C53E1F38B20E17B12F52
Reporter	abuse_ch
Tags:	COVID-19 exe GuLoader

abuse_ch

COVID-19 themed malspam distributing GuLoader:

HELO: linux887.grserver.gr
Sending IP: 185.4.133.240
From: [ W.H.O ]WORLD HEALTH ORGANIZATION <worldhealthsupport@who.com>
Subject: W.H.O: COVID-19 VACCINE NOW READY FOR DISPATCH
Attachment: COVID-19 VACCINE- CURE- UPDATE.Xlxs.iso (contain "COVID-19 VACCINE- CURE- UPDATE.Xlxs.exe")

GuLoader payload URL:
https://drive.google.com/uc?export=download&id=1zcSB7nHWJ-EYvukNnOHdNlI5udPPlPPf

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

Win.Dropper.NetWire-7667577-0

Win.Dropper.NetWire-7667588-0

Result

Threat name:

GuLoader

Detection:

malicious

Classification:

rans.troj.evad

Score:

76 / 100

Link:

https://www.joesandbox.com/analysis/342269

Behaviour

Behavior Graph:

n/a

Gathering data

Threat name:

Win32.Trojan.Injector

Status:

Malicious

First seen:

2020-04-14 17:35:24 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

26 of 31 (83.87%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=5i4are2i2bd7bmawfjwtibgvpgsc4nk5mlqbu7a3yogbv53eof5a._file

Verdict:

malicious

Label(s):

guloader

Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Malspam

GuLoader

iso cac240e2759b45458ca45869ad55883a994e52972bc165e242917960f2d0877b

GuLoader

exe ea38089348d047f0b0162a6d3404d579a42e355d62e01a7c1bc38c1af764717a

(this sample)

Dropped by

MD5 f590e384897861fb9ecf4261aaf6db0c

Dropped by

SHA256 cac240e2759b45458ca45869ad55883a994e52972bc165e242917960f2d0877b

Delivery method

Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
VB_API	Legacy Visual Basic API used	MSVBVM60.DLL::EVENT_SINK_AddRef

Comments

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