44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

Analysis

max time kernel
12s
max time network
10s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
07-07-2023 08:26

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General

Target

persisted_first_party_sets.json
Size

2B
MD5

99914b932bd37a50b983c5e7c90ae93b
SHA1

bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f
SHA256

44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
SHA512

27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\json_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-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2140	AcroRd32.exe
2140	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 680 wrote to memory of 2316	680	cmd.exe	30
PID 680 wrote to memory of 2316	680	cmd.exe	30
PID 680 wrote to memory of 2316	680	cmd.exe	30
PID 2316 wrote to memory of 2140	2316	rundll32.exe	31
PID 2316 wrote to memory of 2140	2316	rundll32.exe	31
PID 2316 wrote to memory of 2140	2316	rundll32.exe	31
PID 2316 wrote to memory of 2140	2316	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
1⤵
- Suspicious use of WriteProcessMemory
PID:680
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2316
- - 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\persisted_first_party_sets.json"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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
312078de31897626d11fddd0fe5ad131

SHA1
43022a10690bee5096af00e2aa6760d2056ff7f8

SHA256
7a7abd1db326cf231ae2a86c9f6834f3cc175d2f75b61cdf4d06b190919fdc87

SHA512
7f50aebcf52acf0f998eb1cc68c5e910351b3ea57a0baefa19466061ccaf5312a42cc15fe450daf1a0d9a88d55b9576825547f6e8ce684096111448186a8f6fe

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