MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb. 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

SchoolBoy

Vendor detections: 16

Intelligence 16 IOCs YARA 27 File information Comments 1

SHA256 hash:	76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb
SHA3-384 hash:	a1f1d17b0cea457a8ec4bac3eaf294898fd9bf9a1a0d5aa8e024d24bf79e3ae142d255c3ca7b0fb4aa558e91e5c11f2c
SHA1 hash:	d9f071442a112b5feeb006487792fa9f1a10ce6e
MD5 hash:	6b24b4d0333c846035c7dfaf048434d3
humanhash:	autumn-quiet-cold-happy
File name:	6b24b4d0333c846035c7dfaf048434d3
Download:	download sample
Signature	SchoolBoy Create hunting rule
File size:	19'785'216 bytes
First seen:	2023-10-16 10:37:46 UTC
Last seen:	2023-10-16 12:30:39 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	e0807bf561b323db82c583667ce32975 (1 x SchoolBoy)
ssdeep	393216:VaQoLPquuL+yhQM/Y0PNio41iXmluLi1C6uStVLXVXQaP:VaZ7dAxPDWEiU9StBXVXQaP
TLSH	T1B31723C6388FC0FAE7805874C91B66D703B177FB89C789747AC4758ED472EB26066892
TrID	35.7% (.EXE) Win32 Executable (generic) (4505/5/1) 16.4% (.EXE) Win16/32 Executable Delphi generic (2072/23) 16.0% (.EXE) OS/2 Executable (generic) (2029/13) 15.8% (.EXE) Generic Win/DOS Executable (2002/3) 15.8% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):
dhash icon	d4c4c4d8ccd4d0c4 (10 x AveMariaRAT, 6 x AgentTesla, 2 x Formbook)
Reporter	zbetcheckin
Tags:	32 exe SchoolBoy

Intelligence

File Origin

# of uploads :

# of downloads :

346

Origin country :

Vendor Threat Intelligence

Malware family:

danabot

ID:

File name:

6b24b4d0333c846035c7dfaf048434d3

Verdict:

Malicious activity

Analysis date:

2023-10-16 10:39:16 UTC

Tags:

danabot danabot-unpacked stealer

Link:

https://app.any.run/tasks/c037852c-e3be-466d-9fdc-7e5c4d89f9ef

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.FileRepMalware.3196.15729.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a custom TCP request

Changing a file

Creating a file

Сreating synchronization primitives

Launching a process

Creating a process with a hidden window

Searching for synchronization primitives

Creating a window

Unauthorized injection to a system process

Gathering data

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

danabot greyware packed packed vmprotect

Link:

https://www.filescan.io/uploads/652d128d28455aedec11e60a/reports/cf3c3c05-953c-426f-9a7e-9ca38ef1556a/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb

Result

Verdict:

MALICIOUS

Malware family:

DanaBot

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/a151a20b-2b30-411d-8f34-615f7c243d4a

Result

Threat name:

DanaBot

Detection:

malicious

Classification:

rans.troj.evad

Score:

96 / 100

Link:

https://www.joesandbox.com/analysis/1326387

Signature

Hides threads from debuggers

Icon mismatch, binary includes an icon from a different legit application in order to fool users

Machine Learning detection for sample

May use the Tor software to hide its network traffic

Modifies existing user documents (likely ransomware behavior)

Multi AV Scanner detection for submitted file

Overwrites code with unconditional jumps - possibly settings hooks in foreign process

System process connects to network (likely due to code injection or exploit)

Tries to evade analysis by execution special instruction (VM detection)

Yara detected DanaBot stealer dll

Behaviour

Behavior Graph:

Download SVG

Score:

97%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb/

Threat name:

Win32.Trojan.Smokeloader

Status:

Malicious

First seen:

2023-10-16 03:37:38 UTC

AV detection:

12 of 22 (54.55%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=oybw2svl6khyu42zdhbpt7gprrbjbxkb757lwxjf2chre6fsic5q._file

Verdict:

malicious

Result

Malware family:

danabot

Score:

10/10

Tags:

family:danabot banker trojan

Link:

https://tria.ge/reports/231016-mpdmgafe29/

Behaviour

Checks processor information in registry

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Blocklisted process makes network request

Danabot

Unpacked files

SH256 hash:

3b901f8abfd373065980fc3eaef39f743396f5a9acacd9464c8ba1131ac19272

MD5 hash:

4cbb78df13ae31d792f35b576cc629ba

SHA1 hash:

dc6eb2e2ac34094b2139555615357ec0324860e7

Detections:

win_sinowal_w1

Link:

https://www.unpac.me/results/30ca4989-5393-4449-9c15-933fb3f4e242/

SH256 hash:

99d66f8f034ee48b224b4124d95af074e1e0cb0cc0e70a517e71621cde49125e

MD5 hash:

51e1dbbff6dc0e741b7f90cb37d0fb7e

SHA1 hash:

6c63b5acbe38299d4ba3576110e5ca573289cc5e

Link:

https://www.unpac.me/results/30ca4989-5393-4449-9c15-933fb3f4e242/

SH256 hash:

76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb

MD5 hash:

6b24b4d0333c846035c7dfaf048434d3

SHA1 hash:

d9f071442a112b5feeb006487792fa9f1a10ce6e

Link:

https://www.unpac.me/results/30ca4989-5393-4449-9c15-933fb3f4e242/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/76036d4aabf2/report/overview.html

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/76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb

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:	adonunix2 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	AD on UNIX

Rule name:	AlternativesExample1 Create hunting rule

Rule name:	BitcoinAddress Create hunting rule
Author:	Didier Stevens (@DidierStevens)
Description:	Contains a valid Bitcoin address

Rule name:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

Rule name:	Borland Create hunting rule
Author:	malware-lu

Rule name:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	html_auto_download_b64 Create hunting rule
Author:	Tdawg
Description:	html auto download

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	QbotStuff Create hunting rule
Author:	anonymous

Rule name:	Quarian Create hunting rule
Author:	Seth Hardy
Description:	Quarian

Rule name:	QuarianCode Create hunting rule
Author:	Seth Hardy
Description:	Quarian code features

Rule name:	RC6_Constants Create hunting rule
Author:	chort (@chort0)
Description:	Look for RC6 magic constants in binary
Reference:	https://twitter.com/mikko/status/417620511397400576

Rule name:	reverse_http Create hunting rule
Author:	CD_R0M_
Description:	Identify strings with http reversed (ptth)

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

Rule name:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	WHIRLPOOL_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for WhirlPool constants

Rule name:	win_sinowal_w1 Create hunting rule
Author:	Seth Hardy
Description:	Quarian code features

File information

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

Web download

SchoolBoy

exe 76036d4aabf28f8a735919c2f9fccf8c4290dd41ff7ebb5d25d08f1278b240bb

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2721037/

Comments

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zbet commented on 2023-10-16 10:37:47 UTC

url : hxxps://careermoguls.com/nogysjdkfhgksdfg.exe