0f931ef68b73d54c7badb15ce19ffe79a9ebb6489ecf86a808cd57b3874404d2

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
11-06-2024 18:31

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General

Target

_locales/fr/messages.json
Size

48KB
MD5

6e3ef49a51100af1b1ca30dd33f86b4c
SHA1

041d5cc5be959360e8506635381447abc954adf6
SHA256

abaa5299bdab1d315abf53a003df57be8e73edbe557dbb8afa59da1028ad793b
SHA512

4660cc50d5514b610a2b1cddba5dddb2ba47681c06de7306737d1c4f803d8f91203971c8faf4963e406ed90591fa86f3cf4b953878bc219b711d7df24783750e
SSDEEP

768:2oYSUAUu9n+YZgg3s9YVHwzTnl6wto66kfTRS6zYR:WSUubggaYpwAwtd/zYR

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

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\	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
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
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	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2664 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2664 AcroRd32.exe
2664 AcroRd32.exe

pid	process
2664	AcroRd32.exe

pid	process
2664	AcroRd32.exe
2664	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2128 wrote to memory of 3040	2128	cmd.exe	rundll32.exe
PID 2128 wrote to memory of 3040	2128	cmd.exe	rundll32.exe
PID 2128 wrote to memory of 3040	2128	cmd.exe	rundll32.exe
PID 3040 wrote to memory of 2664	3040	rundll32.exe	AcroRd32.exe
PID 3040 wrote to memory of 2664	3040	rundll32.exe	AcroRd32.exe
PID 3040 wrote to memory of 2664	3040	rundll32.exe	AcroRd32.exe
PID 3040 wrote to memory of 2664	3040	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\_locales\fr\messages.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2128

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\_locales\fr\messages.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3040

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\_locales\fr\messages.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2664

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
f757f11258b8f84ac8f474653a9f43b6

SHA1
ccd72d6237e9aede2622e1027cb5ca7e637002fd

SHA256
768e22d5a796f8f88aeb7f586bf945800d82f3bd733a7b97dfb54ca2fb8639bf

SHA512
8b6c70948e7d4e709837104f6ca5bb525d2d921b90577e3a7598c00f7f6e9cdb20ed36aac483c59fac668d9ffe00770483fb7cc680f774e8fd7d80b62c124dd4

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