a759f450c9f1e6815b3dccd0ffd77e183794334eaf60ba77fb0cd7e5a7d7fdda

Resubmissions

07-08-2024 12:20

240807-ph2rtsyejj 10

Analysis

max time kernel
104s
max time network
25s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
07-08-2024 12:20

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General

Target

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

3.1MB
MD5

444837d881e5ee243e0d378318ea50b4
SHA1

ec1fa6999a8b297103199032527ac82de1f71730
SHA256

8623727934f3cf7bf160214e47e6f3691673d82c3035a316a8f3f6e2738ab116
SHA512

a27e2e1a5032a1198c06bfd64bb09c4ec1423ff99a43d7b05512ddd52d8da8023dd2e6ad18b1d1a881a59a49e1bf16419e42b97c119fc4164fb87dad6d9604f5
SSDEEP

24576:CXQ7NQ74StSlFGD2npLqhqi0JRh78fVNmNxrcJpMAMNbo1XeA508eY5pp2jAVkW1:FN9M2AhknQ6Bge7A51b

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
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.dat	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2916	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2916	AcroRd32.exe
2916	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 2744	2608	cmd.exe	30
PID 2608 wrote to memory of 2744	2608	cmd.exe	30
PID 2608 wrote to memory of 2744	2608	cmd.exe	30
PID 2744 wrote to memory of 2916	2744	rundll32.exe	31
PID 2744 wrote to memory of 2916	2744	rundll32.exe	31
PID 2744 wrote to memory of 2916	2744	rundll32.exe	31
PID 2744 wrote to memory of 2916	2744	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\$APPDATA\TotalAV\updates\SAVAPI 8.0.1\aeheur_mv.dat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2608
- 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\aeheur_mv.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2744
- - 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\aeheur_mv.dat"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2916

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
ae6b2fd71f71f15f9f6a10baa712a804

SHA1
d4cfa1b4fa02488f38e667707b42ac248f9045f7

SHA256
96d246261ef12dfd54cd12f1d711f9520619e61ab947886edd0e748734cc456f

SHA512
dbddcfcc87862a9368d9af972596bce8d01c389362680226645fc0bf48cdb0ec7fa00627e3a48588bba6382a3a8bf48d4196771259c03df4efb1678c3baa89c0

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