5d5e67fb50030d44113ab3fff345319a7fc366957c7f9368e94264416de2dbf1

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 13:07

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General

Target

external_extensions.json
Size

99B
MD5

280a9277b0e605e905d7f18b6148eeb7
SHA1

fcaf575897048f55b422a6dbeba943b5d550a908
SHA256

a68cafd7d78d5c671c2560656653f2a4d83ab66d87a8728356a88fb1f477b3e6
SHA512

f31635bc74f9a4b0cf07be2aabab4ec883a6b8e9ac3701b27ebad6b0ca7a88c77699e69118db0ff55b37f73fb759b8f4271e6a5defbe44aab1f6981fb1179b07

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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2320	2684	cmd.exe	31
PID 2684 wrote to memory of 2320	2684	cmd.exe	31
PID 2684 wrote to memory of 2320	2684	cmd.exe	31
PID 2320 wrote to memory of 2836	2320	rundll32.exe	33
PID 2320 wrote to memory of 2836	2320	rundll32.exe	33
PID 2320 wrote to memory of 2836	2320	rundll32.exe	33
PID 2320 wrote to memory of 2836	2320	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\external_extensions.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\external_extensions.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2320
- - 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\external_extensions.json"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2836

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
ca1c4bf50cf4ce134a2a0d5bfda8e453

SHA1
6a960c82840831d5748967b580742497c1469cf5

SHA256
02b35a6e6d007f31bf6d72f44539afa3d45a7562711985be919c49a430b5f88b

SHA512
8dc4cd2b53cab0646356e97b67d8431fc90981736e865a18782d94dbd0cc3b4f9cda6e7b00cc63e938ca982619e1355b14472595756ba34beb07ba5d19da1e5a

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