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Analysis
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max time kernel
41s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 06:16
Static task
static1
Behavioral task
behavioral1
Sample
bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe
Resource
win10v2004-20220812-en
General
-
Target
bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe
-
Size
348KB
-
MD5
93130ffbb52ddd551dc5b0204792696e
-
SHA1
6423ca9fcdaf040656de35fcc20b939ec9531964
-
SHA256
bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
-
SHA512
5127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
SSDEEP
6144:6dNafzK0YNeIbBsM/LD/DnEH52bCFDMWFM1Y7FYG/rHz/HxiZM:lQeiGUwH8WDMWF9FYc//ROM
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 988 DirectX11_update.exe -
Deletes itself 1 IoCs
pid Process 988 DirectX11_update.exe -
Loads dropped DLL 6 IoCs
pid Process 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 988 DirectX11_update.exe 988 DirectX11_update.exe 988 DirectX11_update.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 DirectX11_update.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1884 wrote to memory of 988 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 28 PID 1884 wrote to memory of 988 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 28 PID 1884 wrote to memory of 988 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 28 PID 1884 wrote to memory of 988 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 28 PID 1884 wrote to memory of 988 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 28 PID 1884 wrote to memory of 988 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 28 PID 1884 wrote to memory of 988 1884 bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe"C:\Users\Admin\AppData\Local\Temp\bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Users\Admin\AppData\Local\Temp\DirectX11_update.exe"C:\Users\Admin\AppData\Local\Temp\DirectX11_update.exe" C:\Users\Admin\AppData\Local\Temp\43F4.tmp2⤵
- Executes dropped EXE
- Deletes itself
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
PID:988
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94
-
Filesize
348KB
MD593130ffbb52ddd551dc5b0204792696e
SHA16423ca9fcdaf040656de35fcc20b939ec9531964
SHA256bc5e603aab67cbd702053ef1fe0304e17e3d7dfce410909f62884e29f02fea6e
SHA5125127828a56e8841e40b27626dc965b3511ca587060f9f82bd5d7138c8a3ea9d012bffd685acff7375090c401ff28a298afb4d82234fe12c10542b9bbc99cad94