44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

Analysis

max time kernel
835s
max time network
839s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
23-10-2023 08:33

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General

Target

response_1697949825996.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
Set value (str)	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_CLASSES\json_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_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-1-5-21-3986878123-1347213090-2173403696-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3986878123-1347213090-2173403696-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2748	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2836	2180	cmd.exe	29
PID 2180 wrote to memory of 2836	2180	cmd.exe	29
PID 2180 wrote to memory of 2836	2180	cmd.exe	29
PID 2836 wrote to memory of 2748	2836	rundll32.exe	30
PID 2836 wrote to memory of 2748	2836	rundll32.exe	30
PID 2836 wrote to memory of 2748	2836	rundll32.exe	30
PID 2836 wrote to memory of 2748	2836	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\response_1697949825996.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\response_1697949825996.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2836
- - 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\response_1697949825996.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2748

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

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

Filesize
3KB

MD5
8a5f6ccf2f4f086166112271135896b8

SHA1
3eb5bc964f296c3f05131eabdef9406ec036fd39

SHA256
91d86cac6bc2fe96b11da158051d4fbfbba9fc305aa7a812deb4a46c4f3f27c0

SHA512
29a1bbd38906a6f25d28abb70e9b7e152f31ec87212d228d7ecabc3f66b77909127e705f8c02d0988a4feee5bac0321bdad0793e91fb3a892b5e2858fe0a60e0

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