MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e
SHA3-384 hash: 3ef21c9138d469f707b2dc7c081acb6c14b3629e1c8fcce09328e8a8ac49866149704ec91b9624d690c9e368a0d2cead
SHA1 hash: caa9dd80c3a7f1b8971ec5ae24a514c942fa3f62
MD5 hash: 1c2f516dca7bfb450ab98fc6c6c310c6
humanhash: equal-quebec-fanta-whiskey
File name:CERENAK-8392.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'020'256 bytes
First seen:2025-02-24 12:46:12 UTC
Last seen:2025-03-10 11:34:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 98f67c550a7da65513e63ffd998f6b2e (60 x Worm.Mofksys, 21 x SnakeKeylogger, 13 x MassLogger)
ssdeep 24576:K5xolYQY6KLBHXT/H2imAvBW/DnC3q6i/y:dYVLdWixvB2DnC3fd
TLSH T18025BE069344D52ED03B67B05D74E176AB766D29AA11CA0B1BC0BEDB3DB1303A9F530B
TrID 38.2% (.EXE) Win32 Executable Microsoft Visual Basic 6 (82067/2/8)
34.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
14.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
4.9% (.EXE) Win64 Executable (generic) (10522/11/4)
2.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
dhash icon 0196969696969669 (1 x QuasarRAT, 1 x CryptOne, 1 x MassLogger)
Reporter threatcat_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
3
# of downloads :
39
Origin country :
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e.exe
Verdict:
Malicious activity
Analysis date:
2025-02-25 02:15:53 UTC
Tags:
evasion snake keylogger stealer
Link:
https://app.any.run/tasks/ff7317cb-dfd6-4e58-a036-a8a29c6fda33

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.ProtectSharewar-2
Create hunting rule

PUA.Win.Packer.ProtectSharewar-3
Create hunting rule

Win.Malware.Swisyn-7610494-0
Create hunting rule

Win.Virus.Sality-6335700-2
Create hunting rule

Win.Malware.Swisyn-9942393-0
Create hunting rule

Win.Trojan.VBGeneric-6735885-0
Create hunting rule

Win.Virus.Sality-6747602-0
Create hunting rule

Win.Malware.Swisyn-6803865-0
Create hunting rule

Win.Trojan.Kazy-304
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67bc6a5028ab76d43a5cdfc9
Tags:
trojware sharew shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Setting a keyboard event handler
Setting a global event handler
Creating a file in the %AppData% directory
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Unauthorized injection to a recently created process
Setting a single autorun event
Launching the process to create tasks for the scheduler
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun
Enabling a "Do not show hidden files" option
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
explorer lolbin obfuscated overlay packed packed packer_detected visual_basic
Link:
https://www.filescan.io/uploads/67bc6a5060f4b4f0724b8ccd/reports/e38dccb4-859a-453c-8249-82d03a6bec69/overview
Verdict:
Malicious
Labled as:
Trojan.Swisyn
Link:
https://www.hybrid-analysis.com/sample/2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e
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:
Malicious
Link:
https://analyze.intezer.com/analyses/604b0be9-ea10-4da9-9190-f9aca997819c
Result
Threat name:
CryptOne, MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1622714
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Creates an undocumented autostart registry key
Detected CryptOne packer
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Interactive AT Job
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1622714 Sample: CERENAK-8392.exe Startdate: 24/02/2025 Architecture: WINDOWS Score: 100 121 reallyfreegeoip.org 2->121 123 zxq.net 2->123 125 8 other IPs or domains 2->125 137 Found malware configuration 2->137 139 Malicious sample detected (through community Yara rule) 2->139 141 Antivirus detection for dropped file 2->141 145 19 other signatures 2->145 12 CERENAK-8392.exe 1 4 2->12         started        16 ETBBUb.exe 2->16         started        18 explorer.exe 2->18         started        20 svchost.exe 1 1 2->20         started        signatures3 143 Tries to detect the country of the analysis system (by using the IP) 121->143 process4 dnsIp5 105 C:\Users\user\Desktop\cerenak-8392.exe, PE32 12->105 dropped 107 C:\Users\user\AppData\Local\icsys.icn.exe, PE32 12->107 dropped 185 Installs a global keyboard hook 12->185 23 icsys.icn.exe 4 12->23         started        27 cerenak-8392.exe 7 12->27         started        109 C:\Users\user\AppData\Roaming\etbbub.exe, PE32 16->109 dropped 187 Antivirus detection for dropped file 16->187 189 Multi AV Scanner detection for dropped file 16->189 29 etbbub.exe 16->29         started        31 icsys.icn.exe 16->31         started        127 127.0.0.1 unknown unknown 20->127 file6 signatures7 process8 file9 97 C:\Windows\System\explorer.exe, PE32 23->97 dropped 173 Antivirus detection for dropped file 23->173 175 Drops PE files with benign system names 23->175 177 Installs a global keyboard hook 23->177 33 explorer.exe 3 51 23->33         started        99 C:\Users\user\AppData\RoamingTBBUb.exe, PE32 27->99 dropped 101 C:\Users\user\...TBBUb.exe:Zone.Identifier, ASCII 27->101 dropped 103 C:\Users\user\AppData\Local\...\tmpF40C.tmp, XML 27->103 dropped 179 Adds a directory exclusion to Windows Defender 27->179 181 Injects a PE file into a foreign processes 27->181 38 powershell.exe 27->38         started        40 cerenak-8392.exe 27->40         started        42 schtasks.exe 27->42         started        44 cerenak-8392.exe 27->44         started        46 etbbub.exe 29->46         started        48 schtasks.exe 29->48         started        50 etbbub.exe 29->50         started        183 Drops executables to the windows directory (C:\Windows) and starts them 31->183 52 explorer.exe 31->52         started        signatures10 process11 dnsIp12 111 vccmd01.zxq.net 51.81.194.202, 443, 49158, 49159 OVHFR United States 33->111 113 108.177.15.82, 49157, 49162, 49167 GOOGLEUS United States 33->113 119 2 other IPs or domains 33->119 91 C:\Windows\System\spoolsv.exe, PE32 33->91 dropped 93 C:\Users\user\AppData\Roaming\mrsys.exe, PE32 33->93 dropped 147 Antivirus detection for dropped file 33->147 149 System process connects to network (likely due to code injection or exploit) 33->149 151 Creates an undocumented autostart registry key 33->151 153 Drops PE files with benign system names 33->153 54 spoolsv.exe 3 33->54         started        155 Loading BitLocker PowerShell Module 38->155 58 conhost.exe 38->58         started        115 checkip.dyndns.com 193.122.6.168, 49736, 49741, 80 ORACLE-BMC-31898US United States 40->115 117 reallyfreegeoip.org 104.21.64.1, 443, 49738, 49743 CLOUDFLARENETUS United States 40->117 60 conhost.exe 42->60         started        157 Tries to steal Mail credentials (via file / registry access) 46->157 159 Tries to harvest and steal browser information (history, passwords, etc) 46->159 62 conhost.exe 48->62         started        161 Installs a global keyboard hook 52->161 file13 signatures14 process15 file16 95 C:\Windows\System\svchost.exe, PE32 54->95 dropped 165 Antivirus detection for dropped file 54->165 167 Drops executables to the windows directory (C:\Windows) and starts them 54->167 169 Drops PE files with benign system names 54->169 171 Installs a global keyboard hook 54->171 64 svchost.exe 127 5 54->64         started        signatures17 process18 file19 89 C:\Users\user\AppData\Local\stsys.exe, PE32 64->89 dropped 129 Antivirus detection for dropped file 64->129 131 Detected CryptOne packer 64->131 133 Creates an undocumented autostart registry key 64->133 135 3 other signatures 64->135 68 spoolsv.exe 64->68         started        71 at.exe 64->71         started        73 at.exe 64->73         started        75 18 other processes 64->75 signatures20 process21 signatures22 163 Installs a global keyboard hook 68->163 77 conhost.exe 71->77         started        79 conhost.exe 73->79         started        81 conhost.exe 75->81         started        83 conhost.exe 75->83         started        85 conhost.exe 75->85         started        87 15 other processes 75->87 process23
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e/
Threat name:
Win32.Trojan.Golsys
Create hunting rule
Status:
Malicious
First seen:
2025-02-24 10:41:50 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=efz36yprfjoexykz7c4h25yjj2cleb2jqmiiwiqaqpbkg672vy7a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection defense_evasion discovery execution persistence spyware stealer
Link:
https://tria.ge/reports/250224-pz9trssry4/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Boot or Logon Autostart Execution: Active Setup
Command and Scripting Interpreter: PowerShell
Modifies WinLogon for persistence
Modifies visiblity of hidden/system files in Explorer
Verdict:
Malicious
Tags:
trojan Win.Malware.Swisyn-7610494-0 404keylogger
YARA:
Windows_Generic_Threat_2bb7fbe3
Link:
https://app.threat.zone/submission/9e7ac9a2-aca1-4db9-a635-16ba9c7e1222
Unpacked files
SH256 hash:
2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e
MD5 hash:
1c2f516dca7bfb450ab98fc6c6c310c6
SHA1 hash:
caa9dd80c3a7f1b8971ec5ae24a514c942fa3f62
Link:
https://www.unpac.me/results/6d74baf3-d768-4636-b341-c8d517e9b035/
SH256 hash:
366d9039167be90e93a68c529c6841d4d3a4c98cd1373228f18a4738dd2de48e
MD5 hash:
2b01f827230b5563dbde850c32cbfb77
SHA1 hash:
35d32390e4a29484dc379f37234ade39b54d2721
Link:
https://www.unpac.me/results/6d74baf3-d768-4636-b341-c8d517e9b035/
SH256 hash:
e80a463e16b14b43e4112cb8f0cb0cf44ff245be592202042373a02b9ea4deb9
MD5 hash:
bbea1aafd0d7058f6f46c8ceff355f96
SHA1 hash:
14ca07073c0a943129823d6532358a55761a203f
Link:
https://www.unpac.me/results/6d74baf3-d768-4636-b341-c8d517e9b035/
SH256 hash:
ef8286f2604b8b9a5381106cc9050bc9fb530c8a279ab7d72caf759e95b1cd50
MD5 hash:
e280085950bbc77fc82d58b7cab48917
SHA1 hash:
5f11b24dd994b34810869c6365808b7199686e0a
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/6d74baf3-d768-4636-b341-c8d517e9b035/
SH256 hash:
55751f7c65bff12a828fba02b49f9471869fb56108c1cfb919120f9bd4211660
MD5 hash:
74d23a81f34f5cfd04515bd79245738e
SHA1 hash:
a1231626743d38c396f4b2e132a5a41515cd6e6d
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/6d74baf3-d768-4636-b341-c8d517e9b035/
Parent samples :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 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/2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:ProtectSharewareV11eCompservCMS
Create hunting rule
Author:malware-lu
Rule name:SEH__vba
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_Imphash_Mar23_2
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Zero hits with with search for 'imphash:x p:0' on Virustotal)
Reference:Internal Research
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)
Rule name:Windows_Generic_Threat_2bb7fbe3
Create hunting rule
Author:Elastic Security

File information

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

Malspam

MassLogger

Executable exe 2173bf61f12a5c4be159f8b87d77094e84b2074983108b220083c2a37bfaae3e

(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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
VB_APILegacy Visual Basic API usedMSVBVM60.DLL::__vbaCopyBytes
MSVBVM60.DLL::__vbaSetSystemError
MSVBVM60.DLL::__vbaExitProc
MSVBVM60.DLL::__vbaObjSetAddref
MSVBVM60.DLL::EVENT_SINK_AddRef
MSVBVM60.DLL::__vbaFileOpen

Comments