0f931ef68b73d54c7badb15ce19ffe79a9ebb6489ecf86a808cd57b3874404d2

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
11-06-2024 18:31

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General

Target

_locales/en/messages.json
Size

44KB
MD5

8d341fe88b1f676173d41f23f7a4fe5c
SHA1

8799383e866957d43c66e2995845a46c596f57b5
SHA256

bac60108d32eeb70f62e58acf8f1511dee95e1fb4240f6e5b137f1f1087c91da
SHA512

8f1a82f8fd6683585136d80edb5ce3b64b13301f3258208721a403bfb3552a29075aa84c0f1596d9362b1aab412d407f278592473a4e89133568811bea90980d
SSDEEP

384:eYLrKGyT/MWH79ExsL0EIAmZbP9JnNSoaXYLK4Fab7B0KIOpSOvXf+BXFibFbMYo:YM4HAY7oYBqrOrvfAX03D7Dw

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
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2452 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2452 AcroRd32.exe
2452 AcroRd32.exe

pid	process
2452	AcroRd32.exe

pid	process
2452	AcroRd32.exe
2452	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 352 wrote to memory of 2820	352	cmd.exe	rundll32.exe
PID 352 wrote to memory of 2820	352	cmd.exe	rundll32.exe
PID 352 wrote to memory of 2820	352	cmd.exe	rundll32.exe
PID 2820 wrote to memory of 2452	2820	rundll32.exe	AcroRd32.exe
PID 2820 wrote to memory of 2452	2820	rundll32.exe	AcroRd32.exe
PID 2820 wrote to memory of 2452	2820	rundll32.exe	AcroRd32.exe
PID 2820 wrote to memory of 2452	2820	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\_locales\en\messages.json
1⤵
- Suspicious use of WriteProcessMemory
PID:352

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\_locales\en\messages.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2820

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\en\messages.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2452

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
a90b9883a5a75b222d8014413ef7eba8

SHA1
34dfd4e85ba7d78fa1b0108918a03f184d69cb61

SHA256
5d438378664c095bd12c862da743118c1b4e47ee1a4802e84fa54a523d05d620

SHA512
164d96453466aa60323c57d62696fb818f3b7b0c48c06c0ad6f0ab3ec36635625dc1b21c81a99a0da1d304e2165287e69c15aff2967f144bb42eed5e3813b1df

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