077fbfcf6bbc5690d8f7ad368a6414a0ca3ca4117d148e637b0ea07146c69809

Analysis

max time kernel
313s
max time network
319s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26-07-2024 15:56

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General

Target

Creal.pyc
Size

108KB
MD5

827fee64b0b3073f98bd0c945081f337
SHA1

1bd490373e23f3db124f2049bf0081258b836139
SHA256

67c6aab3dc0f448c4b4de7c0fce857961e098986ccabb7c71fb9f48aef29aad2
SHA512

dd85c046bac960cfb4f2bb432ec5eee74e8fbfc48fbbb1727f9c140acf6fff2ff47ffb84828abf9ea470a2eb4216607f5ed062065345a1719f54d0780ab2fbc7
SSDEEP

3072:nV7MaNdUcd63LDAFT8+IiEssh00mH0PtZ8IKEDRc:aQUgW33Hlc

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2928	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2928	AcroRd32.exe
2928	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2892	1732	cmd.exe	31
PID 1732 wrote to memory of 2892	1732	cmd.exe	31
PID 1732 wrote to memory of 2892	1732	cmd.exe	31
PID 2892 wrote to memory of 2928	2892	rundll32.exe	32
PID 2892 wrote to memory of 2928	2892	rundll32.exe	32
PID 2892 wrote to memory of 2928	2892	rundll32.exe	32
PID 2892 wrote to memory of 2928	2892	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Creal.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2892
- - 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\Creal.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
df251d02c1012c49adde41bf34e3166b

SHA1
a47bcef7cb95761fda2ca33aa479209b49a3426e

SHA256
4f6c7a63f49366023291ee7709fb9b21619e8551cfcd88df69fc5726da5d5db9

SHA512
d44213112b2d6c00ddac14000e957bd76f0540fb81ed45797428fb6679b5798ef11c7d26b4bc1b4e1105af8d67482af23836fc289f84e613a58e29b67257c03f

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