276f6452862905ab58e5f7bbcd2f97dde2d2b271aa6c9d44cf59d98a81d98dd5

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 19:34

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General

Target

au.exe
Size

2.9MB
MD5

5493c679e69f08d5beff4d80f2d8f3cc
SHA1

1367121fa80e35fa43cf5d8e29a47e04f952a3e2
SHA256

3cc6062ddd4605fba0a5238ba1118eaf0a35b808c70ae0dd9a41c69b2f27f3f6
SHA512

bb6213a2786194aae0aa21609800a2e8273f99917581d4e6fefe5da7b7c2db3bb3ec3bbff8a9a0d219bea32983732e722f9470b97dd88655a9eecfbbe89de698
SSDEEP

49152:PWTqVTDv7zUUdCWhRrS+/sGXP8cdKIuCHfUo9Rg01MQt:P1N7zZbS+ES8cjuCHfUmR1MQt

Score

7^/10

discovery

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	au.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	au.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	au.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7BC40362-40BF-FB5B-696C-16558496BC25}	au.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7BC40362-40BF-FB5B-696C-16558496BC25}\ = "Background Intelligent Transfer Control Class 2.5"	au.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7BC40362-40BF-FB5B-696C-16558496BC25}\AppID = "{69AD4AEE-51BE-439b-A92C-86AE490E8B30}"	au.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1996	au.exe
Token: SeIncBasePriorityPrivilege	1996	au.exe

C:\Users\Admin\AppData\Local\Temp\au.exe
"C:\Users\Admin\AppData\Local\Temp\au.exe"
1⤵
- Checks BIOS information in registry
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1996

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1996-0-0x0000000000340000-0x00000000003C9000-memory.dmp

Filesize
548KB

Download
memory/1996-5-0x0000000000400000-0x00000000009A7000-memory.dmp

Filesize
5.7MB

Download
memory/1996-6-0x0000000000400000-0x00000000009A7000-memory.dmp

Filesize
5.7MB

Download
memory/1996-8-0x0000000000400000-0x00000000009A7000-memory.dmp

Filesize
5.7MB

Download
memory/1996-9-0x0000000000400000-0x00000000009A7000-memory.dmp

Filesize
5.7MB

Download
memory/1996-10-0x0000000000400000-0x00000000009A7000-memory.dmp

Filesize
5.7MB

Download