MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2. 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: 84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2
SHA3-384 hash: b261de90e985a110060822428a614625ec70a3193efe1e9c8bdcde1c7554e3344a29cc9599978635442af61b7cf878f5
SHA1 hash: da056c87b4a89f8f28d0e037a1cbda3f92cae41f
MD5 hash: 3828a80fc8205d0ddfabb8a099769220
humanhash: skylark-asparagus-mississippi-october
File name:DBS.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:842'760 bytes
First seen:2025-03-03 08:36:57 UTC
Last seen:2025-03-10 11:05:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:OB83ilzaYEwL4/sgyZfDiA5ZWMf3HQtzN+0O1dTh2J71oDM5u1t6kR:Y83ilzaYEt2DiAKq3HYIdZ8J71oDaubZ
TLSH T1C20501A8BA15D103CBA557341A25E7B4227C6EDCF801C22B5FCD6EEFBE22B518E54143
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
dhash icon 201070f269696810 (4 x SnakeKeylogger, 3 x Formbook, 2 x DarkCloud)
Reporter threatcat_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
4
# of downloads :
550
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DBS.exe
Verdict:
No threats detected
Analysis date:
2025-03-03 08:38:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d536e363-feb9-42cd-91ea-fa8159e05af9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.25672.4441.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c56ad7c668b65489be9f84
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2
Result
Verdict:
SUSPICIOUS
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:
MOFKSYS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e93009aa-6f64-425e-8fd7-2b3ea4381bb8
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1627841
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
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
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1627841 Sample: DBS.exe Startdate: 03/03/2025 Architecture: WINDOWS Score: 100 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Sigma detected: Scheduled temp file as task from temp location 2->44 46 11 other signatures 2->46 7 DBS.exe 7 2->7         started        11 bizLhJ.exe 5 2->11         started        process3 file4 32 C:\Users\user\AppData\Roaming\bizLhJ.exe, PE32 7->32 dropped 34 C:\Users\user\...\bizLhJ.exe:Zone.Identifier, ASCII 7->34 dropped 36 C:\Users\user\AppData\Local\...\tmp4FDE.tmp, XML 7->36 dropped 38 C:\Users\user\AppData\Local\...\DBS.exe.log, ASCII 7->38 dropped 48 Uses schtasks.exe or at.exe to add and modify task schedules 7->48 50 Writes to foreign memory regions 7->50 52 Adds a directory exclusion to Windows Defender 7->52 13 powershell.exe 23 7->13         started        16 schtasks.exe 1 7->16         started        18 RegSvcs.exe 1 3 7->18         started        54 Multi AV Scanner detection for dropped file 11->54 56 Injects a PE file into a foreign processes 11->56 20 schtasks.exe 1 11->20         started        22 RegSvcs.exe 2 11->22         started        signatures5 process6 signatures7 58 Loading BitLocker PowerShell Module 13->58 24 WmiPrvSE.exe 13->24         started        26 conhost.exe 13->26         started        28 conhost.exe 16->28         started        30 conhost.exe 20->30         started        process8
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2/
Threat name:
ByteCode-MSIL.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2025-03-03 06:09:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qqyf55zqgiwpsg3hxigf6p7zla7d2wf7cgymecrdvm2alyjkogra._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
mofksys
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250303-kh6zbsszex/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/93fe755f-d327-4de4-99f0-d3c2463395b4
Unpacked files
SH256 hash:
84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2
MD5 hash:
3828a80fc8205d0ddfabb8a099769220
SHA1 hash:
da056c87b4a89f8f28d0e037a1cbda3f92cae41f
Link:
https://www.unpac.me/results/228e4498-b9aa-4a9e-8d03-8282fb9f0989/
SH256 hash:
111b14e3d28b4ac13df25bc4d2b915c9513401ad3d02c643d19f6ea8d4c5ab6d
MD5 hash:
efc996aea55dd01bf31505834d2c01f7
SHA1 hash:
65c76b3d90df67bc49b566beb6f408fd83c33f2f
Link:
https://www.unpac.me/results/228e4498-b9aa-4a9e-8d03-8282fb9f0989/
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/228e4498-b9aa-4a9e-8d03-8282fb9f0989/
Parent samples :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 hash:
b648859d5f0151e00e0dd70503131f2c7ff36a3b8c8b74ea8183d2885719a8c3
MD5 hash:
e9b416d83c48a0779d0f83e2c0c5d237
SHA1 hash:
c1a5028ab3ec40da757fdc5fb80248777bb201ac
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/228e4498-b9aa-4a9e-8d03-8282fb9f0989/
SH256 hash:
45b73ebbddc3937ed579095fcc667971acc1cfc0da4d99819f7a36b3c9c86c0b
MD5 hash:
549cf2274512d3d308813748f2dda1ac
SHA1 hash:
fe487045d5f8b6f7928a6cd6095853ef8270cd81
Detections:
win_mofksys_auto
Create hunting rule
SUSP_Imphash_Mar23_2
Create hunting rule
Link:
https://www.unpac.me/results/228e4498-b9aa-4a9e-8d03-8282fb9f0989/
Parent samples :
e749119200a95759d3c8dd28075315737a7f31c84f68300ef330afb220f95fe3
d21725f320089d0f7dfbaa3a3a16545c0442f3b207089fb9faf1b489f9a5d6d2
a8304682e25c9a90b7f82056490701fad77f210aa76b2b44dbce2ff969d36f5c
26aa4bdb2e9b3d19ac894219c87d5f099f76d555bd9ce39c2a3d2bf8e158d3e2
b639c886848b26cb4a05ac3817024a9d8191665d8783f8d24b2fa42260fc5972
68a48b85b26a63d37b965a012cf555112b2eab5ffab0833356e9f23902d9a7fb
84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2
a939ff1d2a84285e4d21ad5c4ad2a4ddf510c482c61142398391dff1ef1554e4
fd7c0568b92dc7045ab2f3c96ba04630a0456bcae69ab5a32c1e90a35b62b831
3185fda0fc51f13b3e375810b920eb68a4840fc4e79a23250a0052ba13f1acea
bed81a544c41dbbc6dc2dfc1e81ce07bebd330baab9741e7efd4daa57d6bd9bd
0b7891b2cd2c16bac66ec4f815af883da8733e91349faa58a0f6e3a76b10a2b6
f0bc4b08614d9d97e0ef33a4c9230f265dfce37231de8fb97398f12a3a6b0f8a
642820d7b16dce468583bd9c0216c49905f3c8f426762aff3187abc000ee7a79
db4c571ccb811d2158c447987c56f24e7b3598b822ced017ed1d08386d05c8f3
9b730e4e913091b07a3ac73db0b0bc8424fe5f005aa6ebdc7218287949ca1524
501c83f0426868c1fbbcdc30715a55c7e95e5c3e2b5427604eee064dd125eaa5
864bd24c791d20a86b11595632dc2d80c914c29d5d7b2893899a0e9626c5bfa2
ea1a35ea870465623c9478c6a1afb90cdca0579189a45eda755afbe2cd9d022f
6d2cb72f8519ea6716edf231ddf36015328196b5e3add66e90a7bf75e100bcda
1b5cd72684917ce49995daafa3a6f98ff082b0f2d05807c746ee04a94c8ecaf4
17dcecdbb09ab68f2cfd138bebe6b0ba804d6ca2ea65717fad0211d02ec386e7
05933129150f0927685c83dbfb864f46255786b668e7a562c0c7e053e1f37dbe
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/84305ef73032/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/84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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 84305ef730322cf91b67ba0c5f3ff9583e3d58bf11b0c20a23ab3405e12a71a2

(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 (GUARD_CF)high

Comments