53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f

Analysis

max time kernel
142s
max time network
129s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
01/10/2023, 04:20

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General

Target

53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe
Size

198KB
MD5

19eed27d1512cb4e19fa6c02bb144840
SHA1

c6c3b520f22bc51c56256c199b95f57d3c60cc8b
SHA256

53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f
SHA512

cbd67c19c26872be7861cfe3b933118225461fa9b4ec9e580a6df3b60450968272a632ec10f0e5133aa052d592194e9192ea7aa0faf1a8721a83d3c141b14e92
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOq:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2648	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2052	zskhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zskhost.exe	53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 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	zskhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	zskhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3028	53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2648	3028	53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe	2
PID 3028 wrote to memory of 2648	3028	53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe	2
PID 3028 wrote to memory of 2648	3028	53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe	2
PID 3028 wrote to memory of 2648	3028	53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe	2

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\53A05F~1.EXE > nul
1⤵
- Deletes itself
PID:2648

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2052

C:\Users\Admin\AppData\Local\Temp\53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe
"C:\Users\Admin\AppData\Local\Temp\53a05f202d71dba06452631ab49c090f5a1bf7230bad56671fe0e77095efa31f.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\zskhost.exe

Filesize
198KB

MD5
c2848c98e55c38d2b881e33fbb7255a5

SHA1
730c2853b07bfd9f093f3863ff1d4d823d6b98d3

SHA256
e2d57d92306bd301ab4419eedf4db510feb04fd6218eb69b8f0f474b0ae69a66

SHA512
a8b37e30673fab7e932337c5ffdb28b701462a24f3d5268bdcba83a8eb5e5c4963ca3d243ccc6d0b3954de3f37f07e6310863fb4b89e990bba7dd577d94682a4

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C:\Windows\debug\zskhost.exe

Filesize
198KB

MD5
c2848c98e55c38d2b881e33fbb7255a5

SHA1
730c2853b07bfd9f093f3863ff1d4d823d6b98d3

SHA256
e2d57d92306bd301ab4419eedf4db510feb04fd6218eb69b8f0f474b0ae69a66

SHA512
a8b37e30673fab7e932337c5ffdb28b701462a24f3d5268bdcba83a8eb5e5c4963ca3d243ccc6d0b3954de3f37f07e6310863fb4b89e990bba7dd577d94682a4

Download Submit