c911fc796b9bf671e9d239a637e14f44f55cf8617e7a76bbbfdde77d89152faa

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
13-06-2024 13:44

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General

Target

SPU2.bin
Size

2.1MB
MD5

bf97b15b42f4315d25b4f85539ca55c1
SHA1

b638634e5b47f66417367c743ebd873cc236831e
SHA256

3c5dd48589afb68ec03eac44dc7a2e9b779d2cae3c7df7ca362d9940b783a8be
SHA512

e65862ebb5a033cd161e4c69fed80b7f483d2292dabbc3ee41bb9030a3d7fe8eb342b5cbef163daba7474e3d0f685ffd72be5343084c6758b0197f3aa43f99cb
SSDEEP

12:qb3jcccccccccccccccccccccccJtsQurr8/Gzc3jccccccccccccccccccccccf:q4Xurr88OtuXqp

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-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.bin	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_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

2688 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2688 AcroRd32.exe
2688 AcroRd32.exe

pid	process
2688	AcroRd32.exe

pid	process
2688	AcroRd32.exe
2688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1740 wrote to memory of 2956	1740	cmd.exe	rundll32.exe
PID 1740 wrote to memory of 2956	1740	cmd.exe	rundll32.exe
PID 1740 wrote to memory of 2956	1740	cmd.exe	rundll32.exe
PID 2956 wrote to memory of 2688	2956	rundll32.exe	AcroRd32.exe
PID 2956 wrote to memory of 2688	2956	rundll32.exe	AcroRd32.exe
PID 2956 wrote to memory of 2688	2956	rundll32.exe	AcroRd32.exe
PID 2956 wrote to memory of 2688	2956	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\SPU2.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SPU2.bin
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2956

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\SPU2.bin"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2688

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
b1a78379c4290076cc7f21946dec9ac1

SHA1
ff19cff97f0cd030ec1ff2a724bbf0badbb22f13

SHA256
f3187a3b9cc1f21159978946e73178f492c39ab1131df80d0859bfec4688a777

SHA512
e54346a24aa7bbf4c2fc89af3492b9638232e1a33cc21d28ae21e856178af52a69af7ec8dc783daf1335c2466559c0623e4f089455f09c0288795f939aa6b580

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