MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0. 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: 14


Intelligence 14 IOCs YARA 28 File information Comments 1
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SHA256 hash: 8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0
SHA3-384 hash: 74741621ca4576d09686549ff0b9b17b12532017e570a43e4ba99d0d995b39f1b198110899ebbd0fbf45170eb0c38c35
SHA1 hash: b5371851f50ff84372553b296208d97c4a04c9a2
MD5 hash: bd52acbe6fba86dc602e5a851d70c665
humanhash: king-skylark-maryland-network
File name:bd52acbe6fba86dc602e5a851d70c665
Download: download sample
Signature SchoolBoy
Create hunting rule
File size:6'904'320 bytes
First seen:2023-12-04 02:23:52 UTC
Last seen:2023-12-04 04:38:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9aa72e326f234de080a0666006671d0a (1 x SchoolBoy)
ssdeep 196608:7C7EEQed3SdBeNmPDgohMXVuHAeGnyprMFamB8UTowy82tQCni/T5y4w0ute/N8H:kxd3S+uMoh0VUAVnyprKT88bs+o4bVTK
TLSH T15866115BB00BD74FD28061B4D0C23EE165079D7ABE65DB9B91043AE83736EEC391AC52
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4505/5/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon dcc4d4d4d4d4d4c0 (1 x SchoolBoy, 1 x PureLogsStealer)
Reporter zbetcheckin
Tags:32 exe SchoolBoy

Intelligence

File Origin
# of uploads :
2
# of downloads :
334
Origin country :
FR FR
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/462208/
Detection(s):
SecuriteInfo.com.Win32.SpywareX-gen.1562.17728.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Sending a custom TCP request
Reading critical registry keys
Using the Windows Management Instrumentation requests
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/656d38431dea9b05c3d19315/reports/b315f964-79ea-4c3e-af6b-6a9e7a9e11d0/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
DanaBot
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b3913fc1-9657-415d-9a5a-e768a9bc9815
Result
Threat name:
DanaBot
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1352847
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for dropped file
May use the Tor software to hide its network traffic
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DanaBot stealer dll
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1352847 Sample: 1pXdiCesZ6.exe Startdate: 04/12/2023 Architecture: WINDOWS Score: 100 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected DanaBot stealer dll 2->51 53 Machine Learning detection for dropped file 2->53 8 1pXdiCesZ6.exe 2 2->8         started        process3 file4 39 C:\Users\user\AppData\...\Uspehfsepf.dll, PE32 8->39 dropped 55 Detected unpacking (changes PE section rights) 8->55 57 Detected unpacking (overwrites its own PE header) 8->57 12 rundll32.exe 9 326 8->12         started        16 conhost.exe 8->16         started        signatures5 process6 dnsIp7 43 45.159.210.26, 443, 49731, 49741 KOBI-ASNKobiShmueliIL Russian Federation 12->43 45 194.15.112.203, 443, 49729, 49739 INTERNATIONAL-HOSTING-SOLUTIONS-ASEUDCrouteGB Ukraine 12->45 47 2 other IPs or domains 12->47 59 System process connects to network (likely due to code injection or exploit) 12->59 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->61 63 Tries to steal Instant Messenger accounts or passwords 12->63 65 4 other signatures 12->65 18 rundll32.exe 12->18         started        21 schtasks.exe 1 12->21         started        23 schtasks.exe 12->23         started        25 32 other processes 12->25 signatures8 process9 dnsIp10 41 127.0.0.1 unknown unknown 18->41 27 conhost.exe 21->27         started        29 conhost.exe 23->29         started        31 conhost.exe 25->31         started        33 conhost.exe 25->33         started        35 conhost.exe 25->35         started        37 29 other processes 25->37 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0/
Threat name:
Win32.Trojan.ScarletFlash
Create hunting rule
Status:
Malicious
First seen:
2023-12-03 21:43:10 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r76u7uhctvuir2pk66fg62meg34kir343oulmjyqcx33aewr7dqa._file
Verdict:
malicious
Result
Malware family:
danabot
Create hunting rule
Score:
  10/10
Tags:
family:danabot banker collection discovery spyware stealer trojan
Link:
https://tria.ge/reports/231204-cvpxksgf3w/
Behaviour
Checks processor information in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Accesses Microsoft Outlook profiles
Checks installed software on the system
Drops desktop.ini file(s)
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Danabot
Unpacked files
SH256 hash:
aebba8789d0a5e52bb3ee5d31284e36402dcc64b8e8bd5b6b07f512b6196b3cc
MD5 hash:
3abcb69653b7e375a82cde7baa9e3717
SHA1 hash:
e5bf7c4aeb135195df82cf2769b8711a3751764e
Detections:
win_sinowal_w1
Create hunting rule
Link:
https://www.unpac.me/results/005a138d-3433-4443-8f63-278077815f3c/
SH256 hash:
8c9123836ae700004846e1b725aaf9e83b47388240623e643933f86d1eb7c769
MD5 hash:
9340c5999ec64ef98bd1b53c0fbc86b7
SHA1 hash:
e2ddd4a0030e07c44e646a40a983a58ee51b1a60
Link:
https://www.unpac.me/results/005a138d-3433-4443-8f63-278077815f3c/
SH256 hash:
dcf036a9a97d389a96700b593d62612f7fce7acc751807ad54d0d832a1108499
MD5 hash:
78fc29c342962809cf141012fb412032
SHA1 hash:
393f3c4a1294f8965473649944bce3fd5621c23c
Link:
https://www.unpac.me/results/005a138d-3433-4443-8f63-278077815f3c/
SH256 hash:
8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0
MD5 hash:
bd52acbe6fba86dc602e5a851d70c665
SHA1 hash:
b5371851f50ff84372553b296208d97c4a04c9a2
Link:
https://www.unpac.me/results/005a138d-3433-4443-8f63-278077815f3c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8ffd4fd0e29d/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/8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0

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: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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:html_auto_download_b64
Create hunting rule
Author:Tdawg
Description:html auto download
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:possible_trojan_banker
Create hunting rule
Author:@johnk3r
Description:Detects common strings, DLL and API in Banker_BR
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

Executable exe 8ffd4fd0e29d6888e9eaf78a6f698436f8a4477cdba8b6271015f7b012d1f8e0

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2737088/
Cape
Cape
https://www.capesandbox.com/analysis/462208/

Comments


Avatar
zbet commented on 2023-12-04 02:23:53 UTC

url : hxxp://144.202.114.131/ewws.exe