c911fc796b9bf671e9d239a637e14f44f55cf8617e7a76bbbfdde77d89152faa

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13-06-2024 13:44

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General

Target

iopHwRegs.bin
Size

64KB
MD5

e5ac51a1ad8611f14a373ab6442d1bd6
SHA1

d92efec1b705da3a56d6bdc9a669bda0a4c8829d
SHA256

4c91df669bd05292ff8f299e13f7c200f11ebe4c6474ddbf43093e42435d6d7c
SHA512

6eec7204499d3b9d26c4ee5324901571c30606931416269d2355a138ce84781486e59a866643ba9caf53cc096be31b86b8b89fd9a70c7e5142d79b1a8165c377
SSDEEP

3:4X9wBzlPltl/Altl3lT+1R7/Blf6l+8g2aamlUlRf5ldk33lGg4e9O/lllllhKtj:46BJ9X4Xr+1Rq+52aR8Rf5lddgHFXL/

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\bin_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.bin	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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

2604 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2604 AcroRd32.exe
2604 AcroRd32.exe

pid	process
2604	AcroRd32.exe

pid	process
2604	AcroRd32.exe
2604	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2856 wrote to memory of 2832	2856	cmd.exe	rundll32.exe
PID 2856 wrote to memory of 2832	2856	cmd.exe	rundll32.exe
PID 2856 wrote to memory of 2832	2856	cmd.exe	rundll32.exe
PID 2832 wrote to memory of 2604	2832	rundll32.exe	AcroRd32.exe
PID 2832 wrote to memory of 2604	2832	rundll32.exe	AcroRd32.exe
PID 2832 wrote to memory of 2604	2832	rundll32.exe	AcroRd32.exe
PID 2832 wrote to memory of 2604	2832	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\iopHwRegs.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:2856

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\iopHwRegs.bin
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2832

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\iopHwRegs.bin"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2604

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
0364f56b4e045321b09e9337ffda7797

SHA1
34f56f6e2be72e17ef0795ec8e19e09751a1db83

SHA256
16fd3c3ec8779b4abe79e06ebd0122929da7eb44b823ea15558c34ff70c10228

SHA512
5d6ce445e5fff1cbd59d1ff3d770caffa17960a93cc4bb104ced35a3247317cbe1ba5e605df2e9cbc83e78ed4d07c3100da590479881b74e9f7b549ce401e78e

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