83ba4e290da54c23797a42fb6d97b9381a067134c8a19267071182ab8595473d

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 21:15

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General

Target

Brilliantly23.sla
Size

278KB
MD5

6e484e8f0ba8a805ab53c0674dbd65b1
SHA1

2e08b37c93b1e4bf88dd586362fb6c66cac43b3c
SHA256

0100611bf19f40a6338b81dfa56c42d15ede33156475f28b2e575a554d3dc272
SHA512

0279b2949ef629a904b5460f5f44906c612c099df55565daf1b742a43b2819ff44ba075ee23ca41e10e57b045c84a4b1e5118e413f2f9a2ae41dc69d39190b81
SSDEEP

768:XlGRhWx8wlurrwmqGASVbZftzixOojM5WoXEFsMqjzr0m8D0aIA8pPgNHGiAv7Hg:X+hwK1d9ZvkfhGzj9Wggen

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-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\.sla	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\sla_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\sla_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\sla_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\sla_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\sla_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\sla_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\.sla\ = "sla_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2560	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2560	AcroRd32.exe
2560	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 1748	2792	cmd.exe	31
PID 2792 wrote to memory of 1748	2792	cmd.exe	31
PID 2792 wrote to memory of 1748	2792	cmd.exe	31
PID 1748 wrote to memory of 2560	1748	rundll32.exe	32
PID 1748 wrote to memory of 2560	1748	rundll32.exe	32
PID 1748 wrote to memory of 2560	1748	rundll32.exe	32
PID 1748 wrote to memory of 2560	1748	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Brilliantly23.sla
1⤵
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Brilliantly23.sla
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1748
- - 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\Brilliantly23.sla"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2560

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
5578abdd108e89b38adaf2bcf7f5ab5c

SHA1
4a184a5950a5545e4a035c78ff6a67ce9c3e2acc

SHA256
866ab18b9f844925e4a549c66632bbd8aec05eaa6ce0f1c6e0b09882db924168

SHA512
5efb82fcc896e89098b534ded4bd3c39ed5e73459bbaf50e469eb5aef3c121a26087518da1d3c20302803a300bd4dea18ea750baff95e16cb439fc5d77e813a9

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