06a191350f2df652d86e6f602638635dfdc621b3677419560bcefd980bb288d7

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 20:32

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General

Target

data/flutter_assets/assets/defaultConfig.json
Size

3KB
MD5

9d4f94e11ff2843e59a2b2e4aafcffc7
SHA1

e48a5c3a82fbef78913a8bf536b0903a98d65c0b
SHA256

e73f55889a262c66ab13688b71f8ccd6289849b12c29df1176fcebd6100b1b40
SHA512

9f83c1bf6c2f1217f8b5414b8f207e90382166d000edef8e75f282f271d0023dfdf9a9155efeea8a83d42446638a9fde8980094ba3dfa73756239293e1d25b82

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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_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-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\json_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2764 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2764 AcroRd32.exe
2764 AcroRd32.exe

pid	process
2764	AcroRd32.exe

pid	process
2764	AcroRd32.exe
2764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2096 wrote to memory of 2636	2096	cmd.exe	rundll32.exe
PID 2096 wrote to memory of 2636	2096	cmd.exe	rundll32.exe
PID 2096 wrote to memory of 2636	2096	cmd.exe	rundll32.exe
PID 2636 wrote to memory of 2764	2636	rundll32.exe	AcroRd32.exe
PID 2636 wrote to memory of 2764	2636	rundll32.exe	AcroRd32.exe
PID 2636 wrote to memory of 2764	2636	rundll32.exe	AcroRd32.exe
PID 2636 wrote to memory of 2764	2636	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data\flutter_assets\assets\defaultConfig.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2096

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data\flutter_assets\assets\defaultConfig.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2636

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\data\flutter_assets\assets\defaultConfig.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2764

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
5a5c5b7bf16d9cd9027e0b660f4beb9a

SHA1
b957ea22776d9297d6253ab730b4455d8f51c972

SHA256
a560d7c6b43a66fd2031c480434eb62b8e2bb83d93fcd071b0993eb96a5bdf3f

SHA512
1c7e1689e74dbd5f8629d556efa4d7a02d390e479188c9d9e3b8578d1924eec4f30a10add64c4c3e607b4dec32d1f34a277659045ac3590d373939cd983ea9a1

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