Analysis
- geolocation tags
cacanadananorth-americatoronto - max time kernel
148s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
25/09/2026, 16:18
Behavioral task
behavioral1
Sample
Process Lasso 18.3.0.34.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
Process Lasso 18.3.0.34.exe
Resource
win11ltsc2024-20260911-en
19 signatures
150 seconds
Behavioral task
behavioral3
Sample
_Silent Install.cmd
Resource
win10v2004-20260911-en
19 signatures
150 seconds
Behavioral task
behavioral4
Sample
_Silent Install.cmd
Resource
win11ltsc2024-20260911-en
19 signatures
150 seconds
Behavioral task
behavioral5
Sample
_Unpack Portable.cmd
Resource
win10v2004-20260911-en
9 signatures
150 seconds
General
- Target Process Lasso 18.3.0.34.exe
- Size 5.4MB
- Sample260925-tr5bjavyht
- SHA256 a17a72a527f3a3789d153de27232f3cbf25f6a923611d167e0f7ed757f93e1d5
- MD5 3810ac63610f1b1e0fdbf1106bbd4953
- SHA1 3b03a8f4ab0e797cd59c15fbb53345c25b59ec2e
- SHA512 65bbe143f9228b174820034a90867357a6e50ce14393a5de703d55f04f5a14989f4406dc177471eb78cf08dbabb3f3657d600f87dc08adce2e173010c2607787
- SSDEEP 98304:P5sI+4xhhSnZw2+zx9O+rsy7ud1MYDZjPNm:eI+4Jm819TCDZrNm
- TLSH T1884633E39CA168B9F033DF705F691C42BED7274CA432B57E7DAA68009FE4721E625250
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1420 Process Lasso 18.3.0.34.tmp - Loads dropped DLL 4 IoCs
pid Process 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Process Lasso 18.3.0.34.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Process Lasso 18.3.0.34.tmp - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral1/memory/5048-0-0x0000000000400000-0x0000000000416000-memory.dmp innosetup behavioral1/memory/5048-96-0x0000000000400000-0x0000000000416000-memory.dmp innosetup - Suspicious behavior: EnumeratesProcesses 46 IoCs
pid Process 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp 1420 Process Lasso 18.3.0.34.tmp - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5048 wrote to memory of 1420 5048 Process Lasso 18.3.0.34.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\Process Lasso 18.3.0.34.exe"C:\Users\Admin\AppData\Local\Temp\Process Lasso 18.3.0.34.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5048 -
C:\Users\Admin\AppData\Local\Temp\is-H1PHO.tmp\Process Lasso 18.3.0.34.tmp"C:\Users\Admin\AppData\Local\Temp\is-H1PHO.tmp\Process Lasso 18.3.0.34.tmp" /SL5="$602FE,5298690,60928,C:\Users\Admin\AppData\Local\Temp\Process Lasso 18.3.0.34.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1420
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-H1PHO.tmp\Process Lasso 18.3.0.34.tmp
- Size 907KB
- SHA256 2006b2b4d5eb64722f0bba35380057c9556a7e8bd4bf95b92cd68d84ba255be6
- MD5 3754a5eb2b26e9b6a89bd0690718351a
- SHA1 5356815f88cbcc512c74b401c5b1c89f8e950944
- SHA512 9ad991d58a60924650523f3e59a02389a7e729fbf73a0b20479c590375f40f041e0a7101604d7305ef8d7a8d57ba53e8823a75aa27441757881c604236ab0bec
- SSDEEP 24576:wkHgKPNrPA37hzHIA6/oR36vln6sYEubnhRgZtnTkDExlJr:w6frPA37hzHIA6/3UvjhRgZ9TZH
- TLSH T17D157C62F280C437C1A31E749E5786D5693BBE082E3879EB7BF91F4C4E3954139262D2
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-Q95S3.tmp\ISTask.dll
- Size 66KB
- SHA256 e916bdf232744e00cbd8d608168a019c9f41a68a7e8390aa48cfb525276c483d
- MD5 86a1311d51c00b278cb7f27796ea442e
- SHA1 ac08ac9d08f8f5380e2a9a65f4117862aa861a19
- SHA512 129e4b8dd2665bcfc5e72b4585343c51127b5d027dbb0234291e7a197baeca1bab5ed074e65e5e8c969ee01f9f65cc52c9993037416de9bfff2f872e5aeba7ec
- SSDEEP 1536:KVqiEnH9RGX9xXLUWB1GOlb3MvH4xK+RRlm9A:isGX3Vwwbc6Rlm9A
- TLSH T138635C07B6D08676E072AFBC5C39A214A63B7D353D35D0ADABB90D8D4E282C29D4C357
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-Q95S3.tmp\VclStylesInno.dll
- Size 3.0MB
- SHA256 0e93313f42084d804b9ac4be53d844e549cfcaf19e6f276a3b0f82f01b9b2246
- MD5 b0ca93ceb050a2feff0b19e65072bbb5
- SHA1 7ebbbbe2d2acd8fd516f824338d254a33b69f08d
- SHA512 37242423e62af30179906660c6dbbadca3dc2ba9e562f84315a69f3114765bc08e88321632843dbd78ba1728f8d1ce54a4edfa3b96a9d13e540aee895ae2d8e2
- SSDEEP 49152:fvdCka90J5FJ8n2uRrH12SSSAt4VOZkT7LZc8/:fg65FOnRZAt4VObK
- TLSH T12EE56C27B2447A3EC0AB1B3D983BA294AD3FB71177179C5A5BF40C8C8E35580393A597
- MD5 SHA1 SHA512 SSDEEP TLSH