a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c

Analysis

max time kernel
163s
max time network
205s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 09:39

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General

Target

a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe
Size

42KB
MD5

1f3a9f88a4133f8278aa7d07325416b3
SHA1

89bf581f4fd53a7af0635d4b564bb65806f5365f
SHA256

a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c
SHA512

d3261cae5911739020a4afd8e6803f2931541903f8860583d890fc1b365b3d352c748f51d92a6502f8301426bba4d5c5cd0f41db9a9cc8e208d30b9533a747ce
SSDEEP

768:B//4MXNjQ5/0IZlNOCCcDU/GShJQ3cLNMKxVpUrqN6v6Q1spiEBBu:B/QMX65NlNecDgGAlL+0TUohQ1vCBu

Score

10^/10

evasion upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe:*:Enabled:ldrsoft"	a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1076-54-0x0000000000400000-0x0000000001414000-memory.dmp	upx
behavioral1/memory/1076-56-0x0000000000400000-0x0000000001414000-memory.dmp	upx
behavioral1/memory/1076-57-0x0000000000400000-0x0000000001414000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 1 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\SystemBiosVersion	a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\CatRoot2\dberr.txt	a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe

C:\Users\Admin\AppData\Local\Temp\a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe
"C:\Users\Admin\AppData\Local\Temp\a9683993d488aa69ac5787c2c72b4d25d31637620776deeb82e17c7ed0ed5e0c.exe"
1⤵
- Modifies firewall policy service
- Checks BIOS information in registry
- Drops file in System32 directory
PID:1076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1076-54-0x0000000000400000-0x0000000001414000-memory.dmp

Filesize
16.1MB

Download
memory/1076-55-0x0000000076AE1000-0x0000000076AE3000-memory.dmp

Filesize
8KB

Download
memory/1076-56-0x0000000000400000-0x0000000001414000-memory.dmp

Filesize
16.1MB

Download
memory/1076-57-0x0000000000400000-0x0000000001414000-memory.dmp

Filesize
16.1MB

Download