a759f450c9f1e6815b3dccd0ffd77e183794334eaf60ba77fb0cd7e5a7d7fdda

Resubmissions

07/08/2024, 12:20

240807-ph2rtsyejj 10

Analysis

max time kernel
102s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
07/08/2024, 12:20

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General

Target

$APPDATA/TotalAV/updates/SAVAPI 8.0.1/aeset.dat
Size

3KB
MD5

4c9ed5bf916808f45ee25456f977f4b6
SHA1

bc3101b75755a91ee25b757c547c59b998deecc8
SHA256

2b897418cb59d00a89890c8c4c264ed383a24bf319b27043862ef952dee9a132
SHA512

21bdd8790afb37417119782c46c6caf6789d79fd2ed04959f546028518ba29183be6bde4fa76a8da66e1656bc9b339e3f8c0f9b46eb77c77c26fea0fcee64fb3

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

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	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\dat_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\dat_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2688	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2688	AcroRd32.exe
2688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2956	2232	cmd.exe	31
PID 2232 wrote to memory of 2956	2232	cmd.exe	31
PID 2232 wrote to memory of 2956	2232	cmd.exe	31
PID 2956 wrote to memory of 2688	2956	rundll32.exe	32
PID 2956 wrote to memory of 2688	2956	rundll32.exe	32
PID 2956 wrote to memory of 2688	2956	rundll32.exe	32
PID 2956 wrote to memory of 2688	2956	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\$APPDATA\TotalAV\updates\SAVAPI 8.0.1\aeset.dat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\$APPDATA\TotalAV\updates\SAVAPI 8.0.1\aeset.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\$APPDATA\TotalAV\updates\SAVAPI 8.0.1\aeset.dat"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
7fc3167e4adaedb3246189188a453834

SHA1
bae8e54fab15ff5ff7ac743b6acf3f73b6dce0b3

SHA256
a5c4bdba36c1b75f2d36cec762392a8af500c9b84cf0da0f5ba46eeb6c605478

SHA512
2ab9e72a30b090a87c817b94ba753c38490d40325b654483f73c85a74b8b6835582404765048c04d2bdb7bedc3fe81a3ee11fde43be04515a3951bb53c7c26c3

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