MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26aa4bdb2e9b3d19ac894219c87d5f099f76d555bd9ce39c2a3d2bf8e158d3e2. 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 7 File information Comments

SHA256 hash: 26aa4bdb2e9b3d19ac894219c87d5f099f76d555bd9ce39c2a3d2bf8e158d3e2
SHA3-384 hash: d3da7576fff3279bb7025ad964f393aabe758f5faecded50c5274c6150d4e7fce05b1492baf971aa9972181167e4f6b9
SHA1 hash: b20a7ce9c3f24a055c24116b37606238d18b8b61
MD5 hash: b03c1ec35e225f545ffb956804d0b952
humanhash: mississippi-nitrogen-earth-four
File name:Purchase order No.ASPL24-250227 .exe
Download: download sample
Signature MassLogger
File size:851'976 bytes
First seen:2025-02-27 16:57:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:CitZn3C++YLYZY8c7cGxnQb0+iZpw2ey/mYSVw8TSN2NieSiFvYL6IeNjs0i8v0G:CitNC+1aiXv82l/mY0wKYeNzFvodeNv
Threatray 2 similar samples on MalwareBazaar
TLSH T16A05E1AC3214B58FC853C2758EA4ED7466643CAA6717920386DB5DEFB94DAD2CF040E3
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
Reporter lowmal3
Tags:exe MassLogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
445
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase order No.ASPL24-250227 .exe
Verdict:
Malicious activity
Analysis date:
2025-02-27 18:02:56 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
injection micro shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature masquerade obfuscated obfuscated obfuscated packed packed packer_detected signed vbnet
Verdict:
Malicious
Labled as:
MSIL/Kryptik_AGeneric.DIS trojan
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.
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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
Initial sample is a PE file and has a suspicious name
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
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1625837 Sample: Purchase order No.ASPL24-25... Startdate: 27/02/2025 Architecture: WINDOWS Score: 100 43 197.87.175.4.in-addr.arpa 2->43 45 171.39.242.20.in-addr.arpa 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Sigma detected: Scheduled temp file as task from temp location 2->51 53 14 other signatures 2->53 8 Purchase order No.ASPL24-250227 .exe 7 2->8         started        12 zowlVKAOjCCbG.exe 5 2->12         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\zowlVKAOjCCbG.exe, PE32 8->35 dropped 37 C:\...\zowlVKAOjCCbG.exe:Zone.Identifier, ASCII 8->37 dropped 39 C:\Users\user\AppData\Local\...\tmp4132.tmp, XML 8->39 dropped 41 Purchase order No.ASPL24-250227 .exe.log, ASCII 8->41 dropped 55 Adds a directory exclusion to Windows Defender 8->55 14 powershell.exe 23 8->14         started        17 Purchase order No.ASPL24-250227 .exe 1 3 8->17         started        19 schtasks.exe 1 8->19         started        25 2 other processes 8->25 57 Multi AV Scanner detection for dropped file 12->57 59 Injects a PE file into a foreign processes 12->59 21 schtasks.exe 1 12->21         started        23 zowlVKAOjCCbG.exe 2 12->23         started        signatures6 process7 signatures8 61 Loading BitLocker PowerShell Module 14->61 27 WmiPrvSE.exe 14->27         started        29 conhost.exe 14->29         started        31 conhost.exe 14->31         started        33 conhost.exe 21->33         started        process9
Threat name:
Win32.Trojan.CrypterX
Status:
Malicious
First seen:
2025-02-27 12:08:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
mofksys unknown_loader_037
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
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:
Win.Packed.Agen-10026311-0
YARA:
n/a
Unpacked files
SH256 hash:
26aa4bdb2e9b3d19ac894219c87d5f099f76d555bd9ce39c2a3d2bf8e158d3e2
MD5 hash:
b03c1ec35e225f545ffb956804d0b952
SHA1 hash:
b20a7ce9c3f24a055c24116b37606238d18b8b61
SH256 hash:
cff5e61e25decc8b1cb19e6219983cd53319febb2cdc67634460aff9c42dcb5e
MD5 hash:
7bb9e6c26fc723f3984794417f9be3c5
SHA1 hash:
be41b585667b71caba7df2431f70ef3faf881eb4
SH256 hash:
216e471f7cbc54c9668cda576bd04179d0afa39d2ab97a4f6e763a9bdf63c4ad
MD5 hash:
da071ccc238abe57c7c74b227c818183
SHA1 hash:
ce47c89d9fdde82e192b920da2d54fc3b53f0072
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
45b73ebbddc3937ed579095fcc667971acc1cfc0da4d99819f7a36b3c9c86c0b
MD5 hash:
549cf2274512d3d308813748f2dda1ac
SHA1 hash:
fe487045d5f8b6f7928a6cd6095853ef8270cd81
Detections:
win_mofksys_auto SUSP_Imphash_Mar23_2
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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 26aa4bdb2e9b3d19ac894219c87d5f099f76d555bd9ce39c2a3d2bf8e158d3e2

(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