5366657e96a7e5477a37c0c7a59bfcfb7d06235a3a9e796d9e218de875cbcc5d

Analysis

max time kernel
1558s
max time network
1559s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 22:06

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General

Target

auto_responses.json
Size

2B
MD5

99914b932bd37a50b983c5e7c90ae93b
SHA1

bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f
SHA256

44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
SHA512

27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_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-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2284	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2284	AcroRd32.exe
2284	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2376	2116	cmd.exe	31
PID 2116 wrote to memory of 2376	2116	cmd.exe	31
PID 2116 wrote to memory of 2376	2116	cmd.exe	31
PID 2376 wrote to memory of 2284	2376	rundll32.exe	32
PID 2376 wrote to memory of 2284	2376	rundll32.exe	32
PID 2376 wrote to memory of 2284	2376	rundll32.exe	32
PID 2376 wrote to memory of 2284	2376	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\auto_responses.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\auto_responses.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2376
- - 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\auto_responses.json"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2284

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
3ccf323c3ecc2a2ea7fa5fce0cc7d68d

SHA1
5747506b018606c7deb6a09c2cca6c9cff167370

SHA256
461297d2f9f936b07d62e08eb2bd674f551298d953e52824180bd84fc238a756

SHA512
2c6147a08e2777e82a30a84bd7c038cf2e5d09ca3f426e1d1846e69a8c86de9fa889ccdd2dd18df29b8654284c5b9656c00b75e9b89c87aec5c6879ab87d61cb

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