21d5cc62e1e9c967f89a944bd62f92f5f952f5e0e6c84b4732ae5167efa106a9

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
06/06/2024, 12:23

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General

Target
SOLARAUPDATED/bin/save.json
Size 46B
Sample240606-pknb8afa55
SHA256 1bc3e6bcf3d47756fe6e456ce68165d39ea8358186d1a9bb4b2e5911389b22c1
MD5 877b13372acbf8bf740694d141d1aeb0
SHA1 0c764bef8a7c94ef610c129720d3d3d9a66fea3f
SHA512 38a6a7e7bf9572daeabbafb7bb1868d09f9b487e84e17da263f627315623952ab203c8dc5e940b6d59d15183bdd43d153a08ae421f12d085480e73fcbc3b5b82
MD5 SHA1 SHA512

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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2620	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2620	AcroRd32.exe
2620	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2608	2756	cmd.exe	29
PID 2756 wrote to memory of 2608	2756	cmd.exe	29
PID 2756 wrote to memory of 2608	2756	cmd.exe	29
PID 2608 wrote to memory of 2620	2608	rundll32.exe	30
PID 2608 wrote to memory of 2620	2608	rundll32.exe	30
PID 2608 wrote to memory of 2620	2608	rundll32.exe	30
PID 2608 wrote to memory of 2620	2608	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\SOLARAUPDATED\bin\save.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SOLARAUPDATED\bin\save.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2608
- - 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\SOLARAUPDATED\bin\save.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 2aa151c879f291610511000371669bfa4fd83b40b04e6c1cdbf3d8e6751591fb
MD5 dfda3d56c6ee4967c79e7b8e9d2677af
SHA1 a349ae2456feb69ffc451be4445eabd753e6c613
SHA512 0895eefb9766072dab377ca09616c5691403d90698c089ceaa52961d628510d64c2f5df732e6641dfcd8ad8aa1279343d3e4d424d23f70e312bbedddac358be9
MD5 SHA1 SHA512

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