a759f450c9f1e6815b3dccd0ffd77e183794334eaf60ba77fb0cd7e5a7d7fdda

Resubmissions

07-08-2024 12:20

240807-ph2rtsyejj 10

Analysis

max time kernel
122s
max time network
127s
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/aeoffice_gwf.dat
Size

30KB
MD5

0c95def0894c5e5716cf7a3ecc7545a6
SHA1

51ce428514d454e7a428d57e3e050c1edad93a20
SHA256

96e2488023689abf71cf9b951548420ff3ad9d6ff37116d4279a43b5b736968b
SHA512

2884dfc79a869b3e2db3f62340dccd3cee7746852006f67a26a26a4716ec719ba196627b18ddd775655b7baf954f668e9b5229297a4b87685f087e693184b369
SSDEEP

768:y6NQXRQOmhg0jm0fbaakNk8AWdp/2cqMgMYD82ew4uT7jKq:y6NQQi0jfGakNbAGX5gP82h4Iqq

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-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2928	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2928	AcroRd32.exe
2928	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2724	2584	cmd.exe	31
PID 2584 wrote to memory of 2724	2584	cmd.exe	31
PID 2584 wrote to memory of 2724	2584	cmd.exe	31
PID 2724 wrote to memory of 2928	2724	rundll32.exe	33
PID 2724 wrote to memory of 2928	2724	rundll32.exe	33
PID 2724 wrote to memory of 2928	2724	rundll32.exe	33
PID 2724 wrote to memory of 2928	2724	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\$APPDATA\TotalAV\updates\SAVAPI 8.0.1\aeoffice_gwf.dat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2584
- 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\aeoffice_gwf.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2724
- - 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\aeoffice_gwf.dat"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2928

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
5158a31f80ad45f37ce818c53bf8a372

SHA1
7984bc8a3ebfb5567c45143b115a8619d0dda3a6

SHA256
f7795aa2229e353e83a88086ee4c84a1e3aef64800359349defae9c3ba6d6808

SHA512
f8fcbd92eb67710f8fa03ffabeec6837cc65e3969791b05b8a95bc1c0540819ae44a1d6b963b1688eeb9cb0c0b8c233d9118130fd5b915f03f0ddf02203f6c01

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