a759f450c9f1e6815b3dccd0ffd77e183794334eaf60ba77fb0cd7e5a7d7fdda

Resubmissions

07-08-2024 12:20

240807-ph2rtsyejj 10

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
07-08-2024 12:20

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General

Target

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

5KB
MD5

a5061efe8e4dce49b7ac121b739e81c8
SHA1

b84a451c5ea7bb9b3ed14102341f9adff77d7d24
SHA256

4a12d2dbdea0ec6c98041ab78180e724be4ff5a441f5206a4d5b4bdf95c94963
SHA512

dff902584971d28f58129edb2179c1a552c74541b23a9abc67924c0101cc3646c1df36d1738074dc4572d79db8cf08a053a7e2b3dcb18b6c1364766ea61dd605
SSDEEP

48:IZundhvs1U9JYcLaefVx7VL3CiV+35vnBvtpm5Mf/pLt3lREyAz6OFvbewRLIMwu:IZ8E1yaSVLOPOy5Qz6YeZLct7LGSkW

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-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_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-1-5-21-2172136094-3310281978-782691160-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2632	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2632	AcroRd32.exe
2632	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 632	2940	cmd.exe	32
PID 2940 wrote to memory of 632	2940	cmd.exe	32
PID 2940 wrote to memory of 632	2940	cmd.exe	32
PID 632 wrote to memory of 2632	632	rundll32.exe	33
PID 632 wrote to memory of 2632	632	rundll32.exe	33
PID 632 wrote to memory of 2632	632	rundll32.exe	33
PID 632 wrote to memory of 2632	632	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\$APPDATA\TotalAV\updates\SAVAPI 8.0.1\aevdf.dat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2940
- 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\aevdf.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:632
- - 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\aevdf.dat"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2632

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

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
7062706dc6fbf4437be941e8a0e75624

SHA1
7903db75a41e67f20fbf272b0f0db596e76cf332

SHA256
ae96f4b5a1f4f887b629ce94752e5f793ba2c7d93f78e66aeab78dfe5598b3de

SHA512
e8a8f8d82b46c6a855fe658174d540a1b0e0515590619ce0739fb5ce91e2a7aa3669d606d78d6c7a71e5a403be40fd78178c40b4ec40318a67a7e23cc3353368

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