f627ca4c2c322f15db26152df306bd4f983f0146409b81a4341b9b340c365a16

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 12:26

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General

Target

asd100.bin
Size

100KB
MD5

4c6426ac7ef186464ecbb0d81cbfcb1e
SHA1

5a6918eebd9d635e8f632e3ef34e3792b1b5ec13
SHA256

f627ca4c2c322f15db26152df306bd4f983f0146409b81a4341b9b340c365a16
SHA512

5f6dbea410beee80292b16df6fcc767ae6baf058ab4c38fa6a4fc72b7828374af42bd6da094eada2ad006d1a0754f9ff7bdd94c0ef9540e6651729b74fb9ea46
SSDEEP

3::

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-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\bin_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.bin	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_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

2692 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2692 AcroRd32.exe
2692 AcroRd32.exe

pid	process
2692	AcroRd32.exe

pid	process
2692	AcroRd32.exe
2692	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2840 wrote to memory of 2616	2840	cmd.exe	rundll32.exe
PID 2840 wrote to memory of 2616	2840	cmd.exe	rundll32.exe
PID 2840 wrote to memory of 2616	2840	cmd.exe	rundll32.exe
PID 2616 wrote to memory of 2692	2616	rundll32.exe	AcroRd32.exe
PID 2616 wrote to memory of 2692	2616	rundll32.exe	AcroRd32.exe
PID 2616 wrote to memory of 2692	2616	rundll32.exe	AcroRd32.exe
PID 2616 wrote to memory of 2692	2616	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\asd100.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:2840

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\asd100.bin
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2616

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\asd100.bin"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2692

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
4c11e83eaf5cb3bc3d9fce07dc9e0f19

SHA1
4708b93b2275ee49a348d84b11a748f2fe5ca99e

SHA256
89b976fc8c01c1c8a0105cdde66eb231b20de8d59f0fa617afe0a67e295b8484

SHA512
14354eec43cf569288084376f964d908dcbbd87b2d4941c85c929d47b5d0e4c5e2eb53fad6204424f2b5c734b039af89fbd902a2bc84983c3d8dc3c2d5525514

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