MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549. 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


PureLogsStealer


Vendor detections: 14


Intelligence 14 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549
SHA3-384 hash: 0619aa8a829f14dcb4a6bae0fc42dfa1c6c678434e01d8d7acc2c4719d489f59b1a4bb6c673f787ad9e59f29904cf7f7
SHA1 hash: 8226a96811fcae5790dc6e68e68c50bdab7cd656
MD5 hash: 7d3fb88b88bf7274c9c924df03ba7440
humanhash: oxygen-carbon-oscar-snake
File name:Bqzuwuubie.exe
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:1'503'744 bytes
First seen:2024-02-21 13:24:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 24576:lRus/v3MxKepsG2uMtEbBNbegy2gupMakzndARazpX6v9i/jT4Q+gt9U3RRdA:l8VUGCtEbTbe5o6FX6k/4Qt9UR
Threatray 127 similar samples on MalwareBazaar
TLSH T11A6512AA63150922CF73AB34C577E3051E41DEBA8087D20B9385687F71276BF1FA2749
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
Reporter abuse_ch
Tags:exe PureLogStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
328
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549.exe
Verdict:
Malicious activity
Analysis date:
2024-02-21 14:06:49 UTC
Tags:
purelogs purecrypter loader stealer
Link:
https://app.any.run/tasks/4fc3c4e3-836e-4596-9c3a-0e2157011b08

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/477291/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
Create hunting rule

Win.Trojan.EmbeddedReversedDLL-9940922-0
Create hunting rule

Win.Trojan.Generic-10014419-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP POST request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending a custom TCP request
Creating a file in the %temp% subdirectories
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Changing a file
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d5f9ba26f1ddc579a35315/reports/f46f5e11-1721-4016-baa6-b3b2966f4730/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/3ea41763-9dd6-4b04-9858-9219f68f2abf
Result
Threat name:
PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1396163
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
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)
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1396163 Sample: Bqzuwuubie.exe Startdate: 21/02/2024 Architecture: WINDOWS Score: 100 31 www.example.com 2->31 33 236.76.10.0.in-addr.arpa 2->33 47 Snort IDS alert for network traffic 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 4 other signatures 2->53 7 Bqzuwuubie.exe 15 5 2->7         started        12 est.exe 14 5 2->12         started        14 est.exe 2->14         started        signatures3 process4 dnsIp5 35 www.example.com 93.184.216.34, 49705, 49707, 49711 EDGECASTUS European Union 7->35 27 C:\Users\user\AppData\Roaming\est.exe, PE32+ 7->27 dropped 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->55 57 Modifies the context of a thread in another process (thread injection) 7->57 59 Injects a PE file into a foreign processes 7->59 16 Bqzuwuubie.exe 24 7->16         started        61 Multi AV Scanner detection for dropped file 12->61 21 est.exe 24 12->21         started        23 est.exe 14->23         started        file6 signatures7 process8 dnsIp9 29 141.98.10.96, 49706, 49710, 49712 HOSTBALTICLT Lithuania 16->29 25 C:\Users\user\AppData\...\sqlite.interop.dll, PE32+ 16->25 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->37 39 Tries to steal Mail credentials (via file / registry access) 16->39 41 Found many strings related to Crypto-Wallets (likely being stolen) 16->41 43 Tries to harvest and steal browser information (history, passwords, etc) 23->43 45 Tries to harvest and steal Bitcoin Wallet information 23->45 file10 signatures11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549/
Threat name:
ByteCode-MSIL.Trojan.PureLog
Create hunting rule
Status:
Malicious
First seen:
2024-02-21 13:25:09 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
3
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u6p36h3gqlycncppgqap7cpszfqllfnxjgfpg35ruqmpudt6aveq._file
Verdict:
malicious
Similar samples:
1b665b7f78e4dc5b72a403bbb7c31f65d1db9e072933bee3bb3f04792903c12d
PureLogsStealer
2e526b3159d26b4b5055af4b556cf0114c7d225c507b890cf9aef83527ed26bb
PureLogsStealer
a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549
PureLogsStealer
ccfb1b97034d2b697c953a4447b4226e83cd421487f10dc7facc56e630833068
PureLogsStealer
e268df66fb92ff6e5b2719279c5bee5383d56a4b97add2c7dc0ede45d2aec175
PureLogsStealer
+ 117 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:zgrat collection persistence rat spyware stealer
Link:
https://tria.ge/reports/240221-qnz1vsgd88/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549
MD5 hash:
7d3fb88b88bf7274c9c924df03ba7440
SHA1 hash:
8226a96811fcae5790dc6e68e68c50bdab7cd656
Detections:
Typical_Malware_String_Transforms
Create hunting rule
Link:
https://www.unpac.me/results/78551230-e4b2-44d1-bcb3-e8eaa615c93d/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a79fbf1f6682/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/a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Malspam

PureLogsStealer

Executable exe a79fbf1f6682f02689ef3400ff89f2c960b595b7498af36fb1a418fa0e7e0549

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/477291/

Comments