MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a. 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


MassLogger


Vendor detections: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a
SHA3-384 hash: 4b0fbd604ab4429e87fb76d0bdd919a86cc3115dbfc5a4a5a9e3ebc2c0d76a3a89798f02b3e48d091cc3dbeff7661beb
SHA1 hash: f9a921a9ef66c0c1c0fcd6fe02aafc8461f05691
MD5 hash: 0eff2e486b1c46cbf55bc4284355f1ee
humanhash: washington-arkansas-september-lion
File name:INQUIRY_pdf.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:906'240 bytes
First seen:2024-11-28 21:42:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:t2xjaLCnYnbUX2bWOTk7k86ht45oS93GyIrKa:ADnYi6WMlxtxS93GNrK
TLSH T16B151264129ED402C4E157B54D77E3BC56749D89E822C70BAFDA7EEFBC2621238813E1
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 0048496961686800 (5 x Formbook, 2 x RemcosRAT, 1 x Loki)
Reporter TeamDreier
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
380
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dfdc680a86c616e7d21104ea89e9a2a5032e34c6202b46448c12c8dc99cacef7
Verdict:
Malicious activity
Analysis date:
2024-11-28 05:05:53 UTC
Tags:
arch-exec evasion snake keylogger netreactor telegram
Link:
https://app.any.run/tasks/1dac0f3e-e392-42f5-825d-dd310fa857d5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.8189.23297.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6748e4e6e64d1c722d79da47
Tags:
underscore snake
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/6748e3ef8f37cc1861ffa23f/reports/bfa3e7d3-ad3b-47cb-96ff-803851a581df/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ca7a3d30-4c7f-4df5-89cb-03e9301eefbf
Result
Threat name:
PureLog Stealer, Snake Keylogger, VIP Ke
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1564877
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Contains functionality to capture screen (.Net source)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected Snake Keylogger
Yara detected Telegram RAT
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1564877 Sample: INQUIRY_pdf.exe Startdate: 28/11/2024 Architecture: WINDOWS Score: 100 26 reallyfreegeoip.org 2->26 28 api.telegram.org 2->28 30 2 other IPs or domains 2->30 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 48 16 other signatures 2->48 8 INQUIRY_pdf.exe 4 2->8         started        signatures3 44 Tries to detect the country of the analysis system (by using the IP) 26->44 46 Uses the Telegram API (likely for C&C communication) 28->46 process4 file5 24 C:\Users\user\AppData\...\INQUIRY_pdf.exe.log, ASCII 8->24 dropped 50 Adds a directory exclusion to Windows Defender 8->50 52 Injects a PE file into a foreign processes 8->52 12 INQUIRY_pdf.exe 15 2 8->12         started        16 powershell.exe 23 8->16         started        18 INQUIRY_pdf.exe 8->18         started        signatures6 process7 dnsIp8 32 api.telegram.org 149.154.167.220, 443, 49797 TELEGRAMRU United Kingdom 12->32 34 checkip.dyndns.com 193.122.6.168, 49713, 49734, 49744 ORACLE-BMC-31898US United States 12->34 36 reallyfreegeoip.org 172.67.177.134, 443, 49720, 49727 CLOUDFLARENETUS United States 12->36 54 Tries to steal Mail credentials (via file / registry access) 12->54 56 Tries to harvest and steal browser information (history, passwords, etc) 12->56 58 Loading BitLocker PowerShell Module 16->58 20 WmiPrvSE.exe 16->20         started        22 conhost.exe 16->22         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-11-28 03:00:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w656rdjnvtxpp7n5obvnxx3fgklw6i4rm4axhhxatb7xp43ltafa._file
Verdict:
malicious
Label(s):
vipkeylogger
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
vipkeylogger
Create hunting rule
Score:
  10/10
Tags:
family:vipkeylogger collection discovery execution keylogger spyware stealer
Link:
https://tria.ge/reports/241128-1kw5xa1qgs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
VIPKeylogger
Vipkeylogger family
Verdict:
Suspicious
Tags:
404Keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/cea4e379-f5b1-4d3d-b173-654c23337a7c
Unpacked files
SH256 hash:
8a27e70d11a78ee602ad988875ca8a92ae379acda38d3bdb5db14d79a0f3d1c0
MD5 hash:
fb91213abcf621a320abc1fed6b33db4
SHA1 hash:
b52633bec9cebd2d237a18d153273b666c27b638
Detections:
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Link:
https://www.unpac.me/results/70a607ac-c930-4177-8c50-ae4149b76095/
Parent samples :
5e8880438f921f4bd81f137cc9b4c44f1ba12b321a178d4d50a0601d75aef049
b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a
277d673f3d70278aac55dac83b12953e07b89d0364baa07ad38506d22fcc1b17
SH256 hash:
3db8edc26f85ee002440b95234753462557709ff5106fd17b176daa356f1a608
MD5 hash:
b34be93e1a5eb571b18a5cbcc9a33f21
SHA1 hash:
89dac0cf169d29b4029dd3125ce6d7df3251d692
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/70a607ac-c930-4177-8c50-ae4149b76095/
SH256 hash:
67dcf18fdd4c10ffb663147b020f3ad61318901788b549b9ed9f3e1048d0aa73
MD5 hash:
a6377ea44fc38dd0821b260a6b2ef2a7
SHA1 hash:
000a27dbb56df395033adf78ef97339d2f001178
Link:
https://www.unpac.me/results/70a607ac-c930-4177-8c50-ae4149b76095/
SH256 hash:
b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a
MD5 hash:
0eff2e486b1c46cbf55bc4284355f1ee
SHA1 hash:
f9a921a9ef66c0c1c0fcd6fe02aafc8461f05691
Link:
https://www.unpac.me/results/70a607ac-c930-4177-8c50-ae4149b76095/
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/b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a

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: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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

MassLogger

Executable exe b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a

(this sample)

  
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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