51f1c56cf6078e15d05e0ccd8a373db6cd114a574f0e3d1f8f55e5d50022244d

Analysis

max time kernel
120s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 03:07

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General

Target

Frost Launcher/Frost.runtimeconfig.json
Size

372B
MD5

d94cf983fba9ab1bb8a6cb3ad4a48f50
SHA1

04855d8b7a76b7ec74633043ef9986d4500ca63c
SHA256

1eca0f0c70070aa83bb609e4b749b26dcb4409784326032726394722224a098a
SHA512

09a9667d4f4622817116c8bc27d3d481d5d160380a2e19b8944bdd1271a83f718415ce5e6d66e82e36819e575ec1b55f19c45213e0013b877b8d61e6feb9d998

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-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2712 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2712 AcroRd32.exe
2712 AcroRd32.exe

pid	process
2712	AcroRd32.exe

pid	process
2712	AcroRd32.exe
2712	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1432 wrote to memory of 2532	1432	cmd.exe	rundll32.exe
PID 1432 wrote to memory of 2532	1432	cmd.exe	rundll32.exe
PID 1432 wrote to memory of 2532	1432	cmd.exe	rundll32.exe
PID 2532 wrote to memory of 2712	2532	rundll32.exe	AcroRd32.exe
PID 2532 wrote to memory of 2712	2532	rundll32.exe	AcroRd32.exe
PID 2532 wrote to memory of 2712	2532	rundll32.exe	AcroRd32.exe
PID 2532 wrote to memory of 2712	2532	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Frost Launcher\Frost.runtimeconfig.json"
1⤵
- Suspicious use of WriteProcessMemory
PID:1432

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Frost Launcher\Frost.runtimeconfig.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2532

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\Frost Launcher\Frost.runtimeconfig.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2712

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
9f61f90258723ccad537608365ec44e5

SHA1
0f443e373f4cb29d4c0ef1a7634fdae253aa7f22

SHA256
bb3555e2883aa0c935b622a9ad49ba81c0c9818c436aee85a29dc970a5180069

SHA512
70112903e5bab3cd71f68e511621828295acd0adba102ae6a3349cd49778752f396881657df59c3edc7c9d76dd4369515afdfe770ca8fa06089fd160926476e2

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