MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097. 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


BluStealer


Vendor detections: 15


Intelligence 15 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097
SHA3-384 hash: d268e93358bcf6c1b2089e51d1d4710cba6c920ad55cb166866688a525b74faedf0cae26622d91710e7bd9969dbd6165
SHA1 hash: 1fbafb550989c2c944d3941545b68bd553175704
MD5 hash: 6b5440ea657619e7301f3e923654cb3c
humanhash: delta-blue-sad-nevada
File name:35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097
Download: download sample
Signature BluStealer
Create hunting rule
File size:1'020'416 bytes
First seen:2023-04-24 07:58:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash df8fbcbe90e1e305a660f0ac2aa4fae4 (6 x a310Logger, 5 x BluStealer)
ssdeep 24576:wxgsRftD0C2nKGe0Djsf9nz4mloFQnpXUMPQDR6q79dA:waSftDnGpDYf5zaCpXxPuR6E9dA
Threatray 11 similar samples on MalwareBazaar
TLSH T1DD252209AF66F225D1204F3816B7932441D4FF316FA31E1BBB48AA4AE636E47D1B5307
TrID 77.2% (.EXE) Win32 Executable Microsoft Visual Basic 6 (82067/2/8)
6.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 1003873d31213f10 (142 x DarkCloud, 132 x GuLoader, 35 x a310Logger)
Reporter adrian__luca
Tags:BluStealer exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
251
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097
Verdict:
Malicious activity
Analysis date:
2023-04-24 08:14:37 UTC
Tags:
stealer
Link:
https://app.any.run/tasks/902fc0d9-5653-4851-b66e-76ee344dbc88

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
A310Logger
Create hunting rule
Link:
https://www.capesandbox.com/analysis/384457/
Detection(s):
SecuriteInfo.com.Variant.Barys.101.4413.16688.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a window
Modifying an executable file
Launching a service
Searching for synchronization primitives
Creating a file in the Windows subdirectories
Modifying a system executable file
Launching a process
Loading a system driver
Modifying a system file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Changing a file
Creating a file
Enabling autorun for a service
Query of malicious DNS domain
Enabling autorun with the shell\open\command registry branches
Creating a file in the mass storage device
Infecting executable files
Sending an HTTP POST request to an infection source
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/81177/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed shell32.dll
Link:
https://www.filescan.io/uploads/644636cc809528e43aab07f2/reports/609ba98d-accc-4c06-91b0-2933cf0714ab/overview
Verdict:
Malicious
Labled as:
Expiro.NDX virus
Link:
https://www.hybrid-analysis.com/sample/35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ef7dbdcb-0a4c-414c-a137-666c0cb03730
Result
Threat name:
BluStealer, ThunderFox Stealer, a310Logg
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1219827
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Creates files inside the volume driver (system volume information)
Drops executable to a common third party application directory
Found evasive API chain (may stop execution after checking volume information)
Found malware configuration
Found potential ransomware demand text
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Potential malicious icon found
Queries random domain names (often used to prevent blacklisting and sinkholes)
Snort IDS alert for network traffic
Tries to download HTTP data from a sinkholed server
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected a310Logger
Yara detected BluStealer
Yara detected Generic Dropper
Yara detected ThunderFox Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 852774 Sample: 2uZozQRlJr.exe Startdate: 24/04/2023 Architecture: WINDOWS Score: 100 29 nqwjmb.biz 2->29 31 lrxdmhrr.biz 2->31 51 Tries to download HTTP data from a sinkholed server 2->51 53 Snort IDS alert for network traffic 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 20 other signatures 2->57 7 2uZozQRlJr.exe 1 8 2->7         started        12 FXSSVC.exe 14 5 2->12         started        14 perfhost.exe 2->14         started        16 16 other processes 2->16 signatures3 process4 dnsIp5 33 dwrqljrr.biz 173.231.184.122, 49696, 49698, 49741 VOXEL-DOT-NETUS United States 7->33 35 cvgrf.biz 206.191.152.58, 49697, 49700, 80 VOXEL-DOT-NETUS United States 7->35 41 14 other IPs or domains 7->41 21 C:\Windows\System32\xbgmsvc.exe, PE32+ 7->21 dropped 23 C:\Windows\System32\wbengine.exe, PE32+ 7->23 dropped 25 C:\Windows\System32\wbem\WmiApSrv.exe, PE32+ 7->25 dropped 27 39 other malicious files 7->27 dropped 59 Contains functionality to inject code into remote processes 7->59 61 Writes to foreign memory regions 7->61 63 Allocates memory in foreign processes 7->63 71 3 other signatures 7->71 18 AppLaunch.exe 2 7->18         started        65 Antivirus detection for dropped file 12->65 67 Machine Learning detection for dropped file 12->67 37 jpskm.biz 107.6.74.76, 49754, 80 VOXEL-DOT-NETUS United States 16->37 39 saytjshyf.biz 173.231.184.124, 49732, 49742, 80 VOXEL-DOT-NETUS United States 16->39 43 26 other IPs or domains 16->43 69 Creates files inside the volume driver (system volume information) 16->69 file6 signatures7 process8 signatures9 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->45 47 Tries to steal Mail credentials (via file / registry access) 18->47 49 Tries to harvest and steal browser information (history, passwords, etc) 18->49
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097/
Threat name:
Win32.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2023-04-24 07:59:10 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gwvsqd4ar2mb2pdx2hcmhculqswbalfwwchrdnvgglirzt334clq._file
Verdict:
malicious
Similar samples:
283d5eea1f9fc34e351deacc25006fc1997566932fae44db4597c84f1f1f3a30
BluStealer
7aba21bd10b88275b4620021abc90e8d0e5f8f0316e8d8c0b883554afc18f8ae
BluStealer
9c4d77de2d7d2630f8f8ebe6d39340b7312af224764b75c0d165e8fff3411bc4
BluStealer
b1516cc28d0e6e3f77a8eadd2a7fda7daf746e0a7b27088e016519baf8de0338
BluStealer
e65641bdd1d31a37d1caa1cbf41d05fa9e7b0caf3c5b531ba66d32c0a3a94406
BluStealer
e6b2f93e2124fa13a05e54b0f0f9327ccdcebc38ee774332c22f34bf60771cef
BluStealer
f76c4cbfd0f66af33781adf386474e1d00a76d98d822a41fb6092d27c5726cb6
BluStealer
f91550582e9e831cba0a8ee62a9a47b3f9a4f1f24e228353d6f5050bc1b52509
BluStealer
+ 1 additional samples on MalwareBazaar
Result
Malware family:
blustealer
Create hunting rule
Score:
  10/10
Tags:
family:blustealer collection spyware stealer
Link:
https://tria.ge/reports/230424-jvd9eaae88/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
BluStealer
Malware Config
C2 Extraction:
https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325
Unpacked files
SH256 hash:
2b6bb9637f7134c2eccd8b4dc740d1445fac04710abc04f8823bce2b63042ac9
MD5 hash:
6fa615f675dd4a68b9a1d527effc5d80
SHA1 hash:
7901c4dad10c87456b8b06ec4bea3a50f822b934
Link:
https://www.unpac.me/results/d42cfee9-57ac-41fd-b70f-e7392fc2a386/
SH256 hash:
fc9bb9746aaa4e07944b2c1338d26ac852531a6e6c97e98f6a56202d27ff607c
MD5 hash:
d2ec533f8b40a8224d79c87c2291f943
SHA1 hash:
f305fa4c5c8525e853fbdbcf5c8cedad9ba08fd2
Link:
https://www.unpac.me/results/d42cfee9-57ac-41fd-b70f-e7392fc2a386/
SH256 hash:
69fc44276364e2f6aecd4a3fda8255e2b6b2d11949f2d7992e89874359bf3592
MD5 hash:
551dd30696ac2a25498bda109139b044
SHA1 hash:
8a5f87bc03be61d4c69d7513ca0303b63f026e63
Link:
https://www.unpac.me/results/d42cfee9-57ac-41fd-b70f-e7392fc2a386/
SH256 hash:
35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097
MD5 hash:
6b5440ea657619e7301f3e923654cb3c
SHA1 hash:
1fbafb550989c2c944d3941545b68bd553175704
Link:
https://www.unpac.me/results/d42cfee9-57ac-41fd-b70f-e7392fc2a386/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/35ab280f808e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Expiro
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:blustealer_core
Create hunting rule
Author:Nikolaos 'n0t' Totosis
Description:BluStealer Core Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MALWARE_Win_A310Logger
Create hunting rule
Author:ditekSHen
Description:Detects A310Logger
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_m0yv_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.m0yv.

File information

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

Malspam

BluStealer

Executable exe 35ab280f808e981d3c77d1c4c38a8b84ac102cb6b08f11b6a632d11ccf7be097

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/384457/

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