d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b

Analysis

max time kernel
125s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2022 03:01

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General

Target

d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe
Size

327KB
MD5

0a7dd48b8439f387c5d466fea35e0dd0
SHA1

fcdc404f29762eab41d89cf8e855e7c38912d3be
SHA256

d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b
SHA512

8840c56a8498cdb2265fe517ebbfd568021864dbb717a8801c6297318f73c2825aca820af4bb3676894c1aa47d84ed775894a34c2fb39bd57120b4277b093d3d
SSDEEP

6144:FrcbUzkuvcBYC47l2xh6UXujU/6HXgnAv0FSArgxb1BQ52:FrhkuveY3QwU/hXQDbvK2

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
1404	d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe
1404	d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe
1404	d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe
Key value enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{EACCA4FF-0F4C-4226-B7C5-AC93F2234B85}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{624CD458-69C9-43FD-91DE-3C6D35A66A8C}.catalogItem	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1404	d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe
1404	d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe

C:\Users\Admin\AppData\Local\Temp\d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe
"C:\Users\Admin\AppData\Local\Temp\d4b5637f0ef8c6f0f318029381a0120be2d6f0af97e6a52dd5f6e075ad85423b.exe"
1⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
PID:1404

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:4960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\TsuD41EFD3F.dll

Filesize
269KB

MD5
af7ce801c8471c5cd19b366333c153c4

SHA1
4267749d020a362edbd25434ad65f98b073581f1

SHA256
cf7e00ba429bc9f27ccfacc49ae367054f40ada6cede9f513cc29a24e88bf49e

SHA512
88655bd940e9b540c4df551fe68135793eceed03f94389b0654637a18b252bf4d3ef73b0c49548b5fa6ba2cf6d9aff79335c4ebcc0b668e008bcc62c40d2a73c

Download Submit
C:\Users\Admin\AppData\Local\Temp\{98862A2E-89FE-4B90-A97B-C1DC436508D8}\Custom.dll

Filesize
91KB

MD5
a2a81b0e4c80fb76704b1d79e937aff8

SHA1
2c6bdb07bba01186b59dbf1ba107bd27c2d9e00d

SHA256
a59dcfc80305319700a9390f0e9770c446497b8b6b373c5dfd32bc08b13f47aa

SHA512
c3e02e446a69b6fb45d0cbd6c6d9943b4163e5002edaaf10893a35c5fb02d9d4e83863352bf28fd0ce85a7f18e9fa4c7f61a3083d9f2aa0d6d88e0a5d100f6d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\{98862A2E-89FE-4B90-A97B-C1DC436508D8}\_Setup.dll

Filesize
183KB

MD5
3530911a0588f1bbae2d8bba350b4474

SHA1
998bd2fe9abc3a81669330353b695e4d879b5e93

SHA256
4c2fdb86e7690e62dfd26a9b36d6b5f7a12b11d33c40ff0faa1aca54b667b6ee

SHA512
f183b9338232a59b000c758726c24cbbf74d7e5e3ad02da4977400ef9bcf1320ff211647de6a9273afc6605efc15257a838482810de828c4605f294b6faa6e14

Download Submit