91b6f49c5b55d2fe5e38609ca12f8ac45cd63f24c69a421041076bd313508e00

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23/08/2024, 22:41

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General

Target

Content/GREEN/Extra/Portal2-Inst.uasset
Size

350KB
MD5

91e166a4fe99d5a529751e1acaeae26f
SHA1

de5cd3ffe97617bf4c38ed0ee1c9f24bbd5f80e8
SHA256

eea1ca9b2bdc44ff1cf6411b09396e12cc08c9e44b27e00e4164dbe372ba0a54
SHA512

68e6610599de20382cc91f8de2d0af149c3da420ec934c06249503ffe51d9d5de933cbab11a269eb314321a7438f7e2b6592e70dba39262cd1adbfc2f75ab2a0
SSDEEP

6144:RB29sAIrFdKrguf/63r+YPGQTjkC3IrjzSd33hO4cbZK0mXd:5AIbE/6uQMUDhxZiwPXd

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-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\uasset_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\uasset_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\uasset_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\uasset_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.uasset	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\uasset_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\uasset_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.uasset\ = "uasset_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 3032	2316	cmd.exe	31
PID 2316 wrote to memory of 3032	2316	cmd.exe	31
PID 2316 wrote to memory of 3032	2316	cmd.exe	31
PID 3032 wrote to memory of 2836	3032	rundll32.exe	33
PID 3032 wrote to memory of 2836	3032	rundll32.exe	33
PID 3032 wrote to memory of 2836	3032	rundll32.exe	33
PID 3032 wrote to memory of 2836	3032	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Content\GREEN\Extra\Portal2-Inst.uasset
1⤵
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Content\GREEN\Extra\Portal2-Inst.uasset
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3032
- - 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\Content\GREEN\Extra\Portal2-Inst.uasset"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2836

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
abf0d46145babe3f47e60f8e7bb8cf3b

SHA1
35cfec35543681f86e5b11df96af10d283053447

SHA256
3ea8f618ccd81ca7e9f33d2182838553c9080e08e5623d968d32f0b977a0de97

SHA512
455fe9cbe2f8fe5e950456feb9b889572e371599d9b817407170eec3cd12f9bbdf95facd7abb3299076b670da52e05795e807d1e5e8556858b1047ab992357dc

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