Malware Analysis Report

2025-08-10 16:43

Sample ID 241013-zm6lpaxgmd
Target BlakTool.exe
SHA256 3179e176a06c90654c5b09926827b60c79f9c8d951bb64c982ad531571287434
Tags
blankgrabber execution upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3179e176a06c90654c5b09926827b60c79f9c8d951bb64c982ad531571287434

Threat Level: Known bad

The file BlakTool.exe was found to be: Known bad.

Malicious Activity Summary

blankgrabber execution upx

A stealer written in Python and packaged with Pyinstaller

Blankgrabber family

Command and Scripting Interpreter: PowerShell

Loads dropped DLL

UPX packed file

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-13 20:51

Signatures

A stealer written in Python and packaged with Pyinstaller

Description Indicator Process Target
N/A N/A N/A N/A

Blankgrabber family

blankgrabber

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-13 20:51

Reported

2024-10-13 20:51

Platform

win10v2004-20241007-en

Max time kernel

2s

Max time network

4s

Command Line

"C:\Users\Admin\AppData\Local\Temp\BlakTool.exe"

Signatures

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

UPX packed file

upx
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Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 832 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\BlakTool.exe C:\Users\Admin\AppData\Local\Temp\BlakTool.exe
PID 832 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\BlakTool.exe C:\Users\Admin\AppData\Local\Temp\BlakTool.exe

Processes

C:\Users\Admin\AppData\Local\Temp\BlakTool.exe

"C:\Users\Admin\AppData\Local\Temp\BlakTool.exe"

C:\Users\Admin\AppData\Local\Temp\BlakTool.exe

"C:\Users\Admin\AppData\Local\Temp\BlakTool.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\BlakTool.exe'"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2 & "%ProgramFiles%\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\BlakTool.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\_MEI8322\python311.dll

MD5 ccdbd8027f165575a66245f8e9d140de
SHA1 d91786422ce1f1ad35c528d1c4cd28b753a81550
SHA256 503cd34daed4f6d320731b368bbd940dbac1ff7003321a47d81d81d199cca971
SHA512 870b54e4468db682b669887aeef1ffe496f3f69b219bda2405ac502d2dcd67b6542db6190ea6774abf1db5a7db429ce8f6d2fc5e88363569f15cf4df78da2311

C:\Users\Admin\AppData\Local\Temp\_MEI8322\VCRUNTIME140.dll

MD5 be8dbe2dc77ebe7f88f910c61aec691a
SHA1 a19f08bb2b1c1de5bb61daf9f2304531321e0e40
SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
SHA512 0da644472b374f1da449a06623983d0477405b5229e386accadb154b43b8b083ee89f07c3f04d2c0c7501ead99ad95aecaa5873ff34c5eeb833285b598d5a655

memory/864-26-0x00007FF997D00000-0x00007FF9982F2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_MEI8322\base_library.zip

MD5 4b011f052728ae5007f9ec4e97a4f625
SHA1 9d940561f08104618ec9e901a9cd0cd13e8b355d
SHA256 c88cd8549debc046a980b0be3bf27956ae72dcdcf1a448e55892194752c570e6
SHA512 be405d80d78a188a563086809c372c44bcd1ccab5a472d50714f559559795a1df49437c1712e15eb0403917c7f6cfaf872d6bb0c8e4dd67a512c2c4a5ae93055

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_ctypes.pyd

MD5 343e1a85da03e0f80137719d48babc0f
SHA1 0702ba134b21881737585f40a5ddc9be788bab52
SHA256 7b68a4ba895d7bf605a4571d093ae3190eac5e813a9eb131285ae74161d6d664
SHA512 1b29efad26c0a536352bf8bb176a7fe9294e616cafb844c6d861561e59fbda35e1f7c510b42e8ed375561a5e1d2392b42f6021acc43133a27ae4b7006e465ba8

memory/864-31-0x00007FF9ABA00000-0x00007FF9ABA24000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_MEI8322\libcrypto-3.dll

MD5 7f1b899d2015164ab951d04ebb91e9ac
SHA1 1223986c8a1cbb57ef1725175986e15018cc9eab
SHA256 41201d2f29cf3bc16bf32c8cecf3b89e82fec3e5572eb38a578ae0fb0c5a2986
SHA512 ca227b6f998cacca3eb6a8f18d63f8f18633ab4b8464fb8b47caa010687a64516181ad0701c794d6bfe3f153662ea94779b4f70a5a5a94bb3066d8a011b4310d

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_ssl.pyd

MD5 e5f6bff7a8c2cd5cb89f40376dad6797
SHA1 b854fd43b46a4e3390d5f9610004010e273d7f5f
SHA256 0f8493de58e70f3520e21e05d78cfd6a7fcde70d277e1874183e2a8c1d3fb7d5
SHA512 5b7e6421ad39a61dabd498bd0f7aa959a781bc82954dd1a74858edfea43be8e3afe3d0cacb272fa69dc897374e91ea7c0570161cda7cc57e878b288045ee98d9

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_sqlite3.pyd

MD5 a9d2c3cf00431d2b8c8432e8fb1feefd
SHA1 1c3e2fe22e10e1e9c320c1e6f567850fd22c710c
SHA256 aa0611c451b897d27dd16236ce723303199c6eacfc82314f342c7338b89009f3
SHA512 1b5ada1dac2ab76f49de5c8e74542e190455551dfd1dfe45c9ccc3edb34276635613dbcfadd1e5f4383a0d851c6656a7840c327f64b50b234f8fdd469a02ef73

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_socket.pyd

MD5 2957b2d82521ed0198851d12ed567746
SHA1 ad5fd781490ee9b1ad2dd03e74f0779fb5f9afc2
SHA256 1e97a62f4f768fa75bac47bba09928d79b74d84711b6488905f8429cd46f94a2
SHA512 b557cf3fe6c0cc188c6acc0a43b44f82fcf3a6454f6ed7a066d75da21bb11e08cfa180699528c39b0075f4e79b0199bb05e57526e8617036411815ab9f406d35

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_queue.pyd

MD5 0e5997263833ce8ce8a6a0ec35982a37
SHA1 96372353f71aaa56b32030bb5f5dd5c29b854d50
SHA256 0489700a866dddfa50d6ee289f7cca22c6dced9fa96541b45a04dc2ffb97122e
SHA512 a00a667cc1bbd40befe747fbbc10f130dc5d03b777cbe244080498e75a952c17d80db86aa35f37b14640ed20ef21188ea99f3945553538e61797b575297c873f

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_lzma.pyd

MD5 932147ac29c593eb9e5244b67cf389bb
SHA1 3584ff40ab9aac1e557a6a6009d10f6835052cde
SHA256 bde9bccb972d356b8de2dc49a4d21d1b2f9711bbc53c9b9f678b66f16ca4c5d3
SHA512 6e36b8d8c6dc57a0871f0087757749c843ee12800a451185856a959160f860402aa16821c4ea659ea43be2c44fcdb4df5c0f889c21440aceb9ee1bc57373263c

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_hashlib.pyd

MD5 d71df4f6e94bea5e57c267395ad2a172
SHA1 5c82bca6f2ce00c80e6fe885a651b404052ac7d0
SHA256 8bc92b5a6c1e1c613027c8f639cd8f9f1218fc4f7d5526cfcb9c517a2e9e14c2
SHA512 e794d9ae16f9a2b0c52e0f9c390d967ba3287523190d98279254126db907ba0e5e87e5525560273798cc9f32640c33c8d9f825ff473524d91b664fe91e125549

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_decimal.pyd

MD5 8b623d42698bf8a7602243b4be1f775d
SHA1 f9116f4786b5687a03c75d960150726843e1bc25
SHA256 7c2f0a65e38179170dc69e1958e7d21e552eca46fcf62bbb842b4f951a86156c
SHA512 aa1b497629d7e57b960e4b0ab1ea3c28148e2d8ebd02905e89b365f508b945a49aacfbd032792101668a32f8666f8c4ef738de7562979b7cf89e0211614fa21a

C:\Users\Admin\AppData\Local\Temp\_MEI8322\_bz2.pyd

MD5 3bd0dd2ed98fca486ec23c42a12978a8
SHA1 63df559f4f1a96eb84028dc06eaeb0ef43551acd
SHA256 6beb733f2e27d25617d880559299fbebd6a9dac51d6a9d0ab14ae6df9877da07
SHA512 9ffa7da0e57d98b8fd6b71bc5984118ea0b23bf11ea3f377dabb45b42f2c8757216bc38ddd05b50c0bc1c69c23754319cef9ffc662d4199f7c7e038a0fb18254

C:\Users\Admin\AppData\Local\Temp\_MEI8322\unicodedata.pyd

MD5 bc28491251d94984c8555ed959544c11
SHA1 964336b8c045bf8bb1f4d12de122cfc764df6a46
SHA256 f308681ef9c4bb4ea6adae93939466df1b51842554758cb2d003131d7558edd4
SHA512 042d072d5f73fe3cd59394fc59436167c40b4e0cf7909afcad1968e0980b726845f09bf23b4455176b12083a91141474e9e0b7d8475afb0e3de8e1e4dbad7ec0

C:\Users\Admin\AppData\Local\Temp\_MEI8322\sqlite3.dll

MD5 74b347668b4853771feb47c24e7ec99b
SHA1 21bd9ca6032f0739914429c1db3777808e4806b0
SHA256 5913eb3f3d237632c2f0d6e32ca3e993a50b348033bb6e0da8d8139d44935f9e
SHA512 463d8864ada5f21a70f8db15961a680b00ee040a41ea660432d53d0ee3ccd292e6c11c4ec52d1d848a7d846ad3caf923cbc38535754d65bbe190e095f5acb8c3

C:\Users\Admin\AppData\Local\Temp\_MEI8322\select.pyd

MD5 e021cf8d94cc009ff79981f3472765e7
SHA1 c43d040b0e84668f3ae86acc5bd0df61be2b5374
SHA256 ab40bf48a6db6a00387aece49a03937197bc66b4450559feec72b6f74fc4d01e
SHA512 c5ca57f8e4c0983d9641412e41d18abd16fe5868d016a5c6e780543860a9d3b37cc29065799951cb13dc49637c45e02efb6b6ffeaf006e78d6ce2134eb902c67

C:\Users\Admin\AppData\Local\Temp\_MEI8322\rarreg.key

MD5 4531984cad7dacf24c086830068c4abe
SHA1 fa7c8c46677af01a83cf652ef30ba39b2aae14c3
SHA256 58209c8ab4191e834ffe2ecd003fd7a830d3650f0fd1355a74eb8a47c61d4211
SHA512 00056f471945d838ef2ce56d51c32967879fe54fcbf93a237ed85a98e27c5c8d2a39bc815b41c15caace2071edd0239d775a31d1794dc4dba49e7ecff1555122

C:\Users\Admin\AppData\Local\Temp\_MEI8322\rar.exe

MD5 9c223575ae5b9544bc3d69ac6364f75e
SHA1 8a1cb5ee02c742e937febc57609ac312247ba386
SHA256 90341ac8dcc9ec5f9efe89945a381eb701fe15c3196f594d9d9f0f67b4fc2213
SHA512 57663e2c07b56024aaae07515ee3a56b2f5068ebb2f2dc42be95d1224376c2458da21c965aab6ae54de780cb874c2fc9de83d9089abf4536de0f50faca582d09

C:\Users\Admin\AppData\Local\Temp\_MEI8322\libssl-3.dll

MD5 264be59ff04e5dcd1d020f16aab3c8cb
SHA1 2d7e186c688b34fdb4c85a3fce0beff39b15d50e
SHA256 358b59da9580e7102adfc1be9400acea18bc49474db26f2f8bacb4b8839ce49d
SHA512 9abb96549724affb2e69e5cb2c834ecea3f882f2f7392f2f8811b8b0db57c5340ab21be60f1798c7ab05f93692eb0aeab077caf7e9b7bb278ad374ff3c52d248

C:\Users\Admin\AppData\Local\Temp\_MEI8322\bound.blank

MD5 0741f6a3fabccea0576762466634eb44
SHA1 911642d5cf13734733de6e2c0ac2d02883cf29d5
SHA256 fceac92282d3545d98a65cdd35addc0038a37b57127856363fe3c9b69b5eb995
SHA512 294df5d6c71b47ddbdd43af1a04009daa06a0a4ccef67766d57fdd386091bfe5e227e5e66a11f9fbd9b90d5d0de79bb069b6454b07c1881b68a6db044c98c07a

C:\Users\Admin\AppData\Local\Temp\_MEI8322\blank.aes

MD5 370cf74b1538edea3adf683bde313ad9
SHA1 23c76eec8e9fd0b6a54c2f18f1770c351a08c5b7
SHA256 8fa37474da2c8e05f57de65aff51c5c7eac2078f63d9314874d7b2aa04a47a34
SHA512 e9b0ac77e5d36d49e9d96137725119a70dc12cbd8c849734c1cb776fc763877146d0b78458a13e2090f9e2c52e52c8d00237636840781196b0cd27dc77dd1f8c

memory/864-33-0x00007FF9AFF30000-0x00007FF9AFF3F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_MEI8322\libffi-8.dll

MD5 08b000c3d990bc018fcb91a1e175e06e
SHA1 bd0ce09bb3414d11c91316113c2becfff0862d0d
SHA256 135c772b42ba6353757a4d076ce03dbf792456143b42d25a62066da46144fece
SHA512 8820d297aeda5a5ebe1306e7664f7a95421751db60d71dc20da251bcdfdc73f3fd0b22546bd62e62d7aa44dfe702e4032fe78802fb16ee6c2583d65abc891cbf

memory/864-56-0x00007FF9A7CF0000-0x00007FF9A7D1D000-memory.dmp

memory/864-58-0x00007FF9AF370000-0x00007FF9AF389000-memory.dmp

memory/864-60-0x00007FF9A7CC0000-0x00007FF9A7CE3000-memory.dmp

memory/864-62-0x00007FF997B80000-0x00007FF997CFE000-memory.dmp

memory/864-66-0x00007FF9AC310000-0x00007FF9AC31D000-memory.dmp

memory/864-65-0x00007FF9AD9B0000-0x00007FF9AD9C9000-memory.dmp

memory/864-68-0x00007FF9A7A70000-0x00007FF9A7AA3000-memory.dmp

memory/864-73-0x00007FF9A70F0000-0x00007FF9A71BD000-memory.dmp

memory/864-72-0x00007FF997D00000-0x00007FF9982F2000-memory.dmp

memory/864-74-0x0000013E2D1F0000-0x0000013E2D719000-memory.dmp

memory/864-76-0x00007FF9ABA00000-0x00007FF9ABA24000-memory.dmp

memory/864-75-0x00007FF997650000-0x00007FF997B79000-memory.dmp

memory/864-80-0x00007FF9AC300000-0x00007FF9AC30D000-memory.dmp

memory/864-78-0x00007FF9A85B0000-0x00007FF9A85C4000-memory.dmp