0f931ef68b73d54c7badb15ce19ffe79a9ebb6489ecf86a808cd57b3874404d2

Analysis

max time kernel
120s
max time network
124s
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/de/messages.json
Size

42KB
MD5

0b7e85ff921e1301fd3b42bb82558777
SHA1

5ada5fdff5ec7ce4ed91adfb30db87284ca178ae
SHA256

9f85e5172e7753452c79f95e97cdfc6fa0c3a4005d2b4907b8128c54fd064af2
SHA512

41c4fc04be2d0409402ef2d9867b20a6610802ef81e545c5b6825ca37e56f36d719e94622f64aad0f6aef4999e91e7249252e603e13bfbe987b6adde4689eaee
SSDEEP

768:Xxo7p2BB1qOgsP55VYVC/q2g0AtI5lIC/WM5HdRvppR:TBUsPPVYVCC2gC5lYM53ppR

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-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\json_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2628 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2628 AcroRd32.exe
2628 AcroRd32.exe

pid	process
2628	AcroRd32.exe

pid	process
2628	AcroRd32.exe
2628	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 848 wrote to memory of 2604	848	cmd.exe	rundll32.exe
PID 848 wrote to memory of 2604	848	cmd.exe	rundll32.exe
PID 848 wrote to memory of 2604	848	cmd.exe	rundll32.exe
PID 2604 wrote to memory of 2628	2604	rundll32.exe	AcroRd32.exe
PID 2604 wrote to memory of 2628	2604	rundll32.exe	AcroRd32.exe
PID 2604 wrote to memory of 2628	2604	rundll32.exe	AcroRd32.exe
PID 2604 wrote to memory of 2628	2604	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\_locales\de\messages.json
1⤵
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\_locales\de\messages.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2604

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\de\messages.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2628

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
7f0bd9a6bb1085a99257a097a2be5a54

SHA1
977074d7255f281e95a529f412d890b30369ae50

SHA256
39d6fa10b2981c9fda9a6f7e3a896a727378a68b3ed826f538708333cd67c8f8

SHA512
5a548be9b1eac640423bc65de73e3e3ca0679d07d254569336b3a91db77a2a1130861d785fea6d9bda8655c09447f2acab721e9f1b183bcee4b5e0b8463a3de1

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