5366657e96a7e5477a37c0c7a59bfcfb7d06235a3a9e796d9e218de875cbcc5d

Analysis

max time kernel
1558s
max time network
1558s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 22:06

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General

Target

.env
Size

36B
MD5

65031d96a91b3579bae7b8da384d1000
SHA1

42bfd72cb37796aef204f60f50a2f3aa5b55a6fe
SHA256

7f361ef6bddefde1fe9c552ecae97b4cf020da64e76c161f0c674a5b1bc418ea
SHA512

e083ab51f75cf7a22c5e487cdaa365e2a4677c6e4be5948d06086dce73dcc9f9de63ad042199f9e29268075e65263ed49cc4382384a7d4f291d30e8a7741a973

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
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\.env	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\env_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\env_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\env_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\env_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\env_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\.env\ = "env_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_CLASSES\env_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1652	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1652	AcroRd32.exe
1652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2304	2668	cmd.exe	31
PID 2668 wrote to memory of 2304	2668	cmd.exe	31
PID 2668 wrote to memory of 2304	2668	cmd.exe	31
PID 2304 wrote to memory of 1652	2304	rundll32.exe	32
PID 2304 wrote to memory of 1652	2304	rundll32.exe	32
PID 2304 wrote to memory of 1652	2304	rundll32.exe	32
PID 2304 wrote to memory of 1652	2304	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\.env
1⤵
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\.env
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2304
- - 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\.env"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1652

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
530c254a92aa8a2fcdc147138df95d9e

SHA1
e93a74cee68c2a605f7a44b21b0fa2e5898ba8f1

SHA256
a022e93464ed2ddd85f69a7188e1401b8061c39ba565e03924add9cc05e09bdc

SHA512
7945edb2c7ff73773321b622821bc380a712a4fed20c73167eafbff250a4a99862fafacb782ac8ed7201982d2337aeb24457ef8b7be3d51178cd453c59b42af6

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