Analysis
- user interaction
yes - max time kernel
119s - max time network
113s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
09/08/2026, 18:18
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Xfer_KeyGen.exe
Resource
win10ltsc2021-20260513-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
$TEMP/BASSMOD.dll
Resource
win10ltsc2021-20260513-en
2 signatures
150 seconds
Behavioral task
behavioral3
Sample
$TEMP/R2RXFEKG.dll
Resource
win10ltsc2021-20260513-en
3 signatures
150 seconds
Behavioral task
behavioral4
Sample
$TEMP/keygen.exe
Resource
win10ltsc2021-20260513-en
1 signatures
150 seconds
General
- Target Xfer_KeyGen.exe
- Size 559KB
- Sample260809-wxthbstbrg
- SHA256 29e65b74b8ffaedfc0fc4e233684c89eaa4a2f36c4fe478a3d851991b32e5950
- MD5 3502197687f3356bc50ab03329831d22
- SHA1 a6ad8b22a2a45eda34c64d33e55236e3d3cf440e
- SHA512 adffec8a1940113c1a7545a8778fc77db1f9bf6f0a4f216f96bef5ea9197831e3821d4f5b822e08fcc15477a3650ab60dd88814008b85db56b27f5c624c0eb7d
- SSDEEP 12288:XYkc9t2Sll/Sq9x4oWrSfzTw9wViWOfo1l9ds/7NPq7:XYkcL5Sq/4jurIGOfobvkNPq7
- TLSH T12BC41201FE6086D7D8A70BB4ACEF85122ABB7C564AB6164B7390B738BA73311551F313
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1120 keygen.exe - Loads dropped DLL 3 IoCs
pid Process 1120 keygen.exe 1120 keygen.exe 1120 keygen.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 Xfer_KeyGen.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language keygen.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 6136 wrote to memory of 1120 6136 Xfer_KeyGen.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\Xfer_KeyGen.exe"C:\Users\Admin\AppData\Local\Temp\Xfer_KeyGen.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6136 -
C:\Users\Admin\AppData\Local\Temp\keygen.exeC:\Users\Admin\AppData\Local\Temp\keygen.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1120
-
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3fc 0x4cc1⤵PID:4832
-
C:\Windows\system32\notepad.exe"C:\Windows\system32\notepad.exe"1⤵PID:5076
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\BASSMOD.DLL
- Size 33KB
- SHA256 8ad9e47693e292f381da42ddc13724a3063040e51c26f4ca8e1f8e2f1ddd547f
- MD5 e4ec57e8508c5c4040383ebe6d367928
- SHA1 b22bcce36d9fdeae8ab7a7ecc0b01c8176648d06
- SHA512 77d5cf66caf06e192e668fae2b2594e60a498e8e0ccef5b09b9710721a4cdb0c852d00c446fd32c5b5c85e739de2e73cb1f1f6044879fe7d237341bbb6f27822
- SSDEEP 768:qQmS5iUgi5czW+DlrQOS1DeDdjgNtbX4O6DHix84H0:qQz5Tgof+DdpS1+djctLSHiZ0
- TLSH T130F2E1B43B18CDE2DDC807F41FE4E6A879DB92026A13DBC5D697CA97328B4914D42F11
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\R2RXFEKG.dll
- Size 3KB
- SHA256 fb2ef28d03f1bbc60cb564cc8d90b3469f3ad393d81020b4afe2501c1b60da9c
- MD5 fb235a312dbde4daf45aa6d62923d2c4
- SHA1 67580595f059640b974cd585b3deac25aba5928e
- SHA512 14c7ba743221520753266119b4f91023321fdead7e3f941e4c6ede1b439886fcdfe7565eefd00d03f7c93686234ccd7369e150f2ad344d365ed0447c6aa6f898
- TLSH T11B51725B97930876EB28037F098FD4C8914DAB6147DD1F0B6BC8052C989D8CEA972FE5
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\keygen.exe
- Size 249KB
- SHA256 941267a1bd1328f21bbaf3a1ba5abe12196c3d57e4c49134c6764e7b143767d8
- MD5 39940bef79a1d23adf86979d4d4cceed
- SHA1 593f9ea0cd0c1c4ec35c92a4473ed05437fb22ce
- SHA512 12b8f61bb8c1c661d7d4c7aff5e2e3f2915cd1b3c923bf9b17dd3bcc8b3ffb4145aa86b284bedd2695c6e62117cc1257a896dfe3227961deac35e8e9836d12c3
- SSDEEP 6144:pcmzikEPDonRgNgz1+hw6hNgPfHv9PAimIAOsE7c7:pc/kEPDonR6Y436vRH7c7
- TLSH T1AC44BF02B3E3C4F2ED8926BD055E5F1E563562140B36D9E3D3A82F9ADC213D09E3635A
- MD5 SHA1 SHA512 SSDEEP TLSH