8a33cc7af2cf926411f45236cb841d1b5ab667aabff7c85c102a0edb2baa2534

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
07-07-2024 03:18

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General

Target

Ruler.IRule.deps.json
Size

2KB
MD5

edca4fa4c3129f401809a6c9ae183d02
SHA1

09d8c88ed3a646dc8a27e8711579f365120d767a
SHA256

276998154b098f4e2d24e41b33204ed7b60cbf174baaa8453403705a3e2c755d
SHA512

2f77ca5436704a49bbdef70709d8cf09dc8949cd23dcc6a14772f7beab95a3eae232b0b87d2ce6947f3b8644056e99826373d5ff6801578a7f04fd7d0ed84961

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-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_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-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2876 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2876 AcroRd32.exe
2876 AcroRd32.exe

pid	process
2876	AcroRd32.exe

pid	process
2876	AcroRd32.exe
2876	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2544 wrote to memory of 2700	2544	cmd.exe	rundll32.exe
PID 2544 wrote to memory of 2700	2544	cmd.exe	rundll32.exe
PID 2544 wrote to memory of 2700	2544	cmd.exe	rundll32.exe
PID 2700 wrote to memory of 2876	2700	rundll32.exe	AcroRd32.exe
PID 2700 wrote to memory of 2876	2700	rundll32.exe	AcroRd32.exe
PID 2700 wrote to memory of 2876	2700	rundll32.exe	AcroRd32.exe
PID 2700 wrote to memory of 2876	2700	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Ruler.IRule.deps.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2544

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Ruler.IRule.deps.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2700

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\Ruler.IRule.deps.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2876

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
c422e2531279cef6e2b3f0e9ec049163

SHA1
99a422867abe7200c7d5d25f8ba10fe11337a87f

SHA256
55585d2c2669b1f1a67c2b3683ffaceda07e8eca92052f8b5806bac905d31eb6

SHA512
9a88182880b546bdaf575560f2a3d7aa19577f4ef9c70373955aea885a0c4ebaab24cbe84e9f33503e61b69b659b1f6b98c620e11caf4e3cc5345ab343b5dd94

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