c911fc796b9bf671e9d239a637e14f44f55cf8617e7a76bbbfdde77d89152faa

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 15:02

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General

Target
GS.bin
Size 4.0MB
Sample240609-sej96ace26
SHA256 f3f66dff8b624c46646e7cc1ef30cde9ac9799addda0e60e4d69446032e53c2f
MD5 d912d0fa9f995e4dd4a3499066e423d2
SHA1 f98bbd4cf0675eeaa9db527d94197ff7a4e9a6c1
SHA512 15bd801fe3e894efa1f632d4631e0671e14695dbac1de4ae519bfe9c9bc90bd650ddcb2b2a610bf912dc985b0b0ab0826df23880fec1db39d36195656613e3fa
SSDEEP 12288:ixNKg4nIal++++++Y++P++7++m+Erh/RI2BEcCz++87OKDUyY3M+TsLcXLrBxdxI:ixElrqt9vLQPP2V2
MD5 SHA1 SHA512 SSDEEP

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\bin_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.bin	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\bin_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2692	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2692	AcroRd32.exe
2692	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 1736	2180	cmd.exe	29
PID 2180 wrote to memory of 1736	2180	cmd.exe	29
PID 2180 wrote to memory of 1736	2180	cmd.exe	29
PID 1736 wrote to memory of 2692	1736	rundll32.exe	32
PID 1736 wrote to memory of 2692	1736	rundll32.exe	32
PID 1736 wrote to memory of 2692	1736	rundll32.exe	32
PID 1736 wrote to memory of 2692	1736	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\GS.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\GS.bin
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1736
- - 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\GS.bin"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 cc09077c5617a38df85d335934fac8ba554eab70700c144bb9cf7212817e5fc1
MD5 60ee090d3cda8d4d999b53af00685298
SHA1 62c4df72fde42f625bc469c4410f08fb2fa68711
SHA512 b9c762c1af7321c3082a5865f528d70542797451c7c155604d16ef1ad3b6d7229866e1e94bf689c03a35de5991771e54f9522f00c90ebd405778583002d60765
MD5 SHA1 SHA512

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