c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97

Analysis

max time kernel
98s
max time network
139s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
28-12-2024 22:53

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General

Target

release.zip
Size

445KB
MD5

06a4fcd5eb3a39d7f50a0709de9900db
SHA1

50d089e915f69313a5187569cda4e6dec2d55ca7
SHA256

c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97
SHA512

75e5f637fd3282d088b1c0c1efd0de8a128f681e4ac66d6303d205471fe68b4fbf0356a21d803aff2cca6def455abad8619fedc8c7d51e574640eda0df561f9b
SSDEEP

12288:BfJ13+GoLo2d5ifXHE8134QwYOwFSFRiLQI:BKGo8EifSQwYWI

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3520	builder.exe

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	builder.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4148	7zFM.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	4148	7zFM.exe
Token: 35	4148	7zFM.exe
Token: SeSecurityPrivilege	4148	7zFM.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4148	7zFM.exe
4148	7zFM.exe

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\release.zip"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4148

C:\Users\Admin\Desktop\builder.exe
"C:\Users\Admin\Desktop\builder.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3520

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\builder.exe

Filesize
10KB

MD5
4f04f0e1ff050abf6f1696be1e8bb039

SHA1
bebf3088fff4595bfb53aea6af11741946bbd9ce

SHA256
ded51c306ee7e59fa15c42798c80f988f6310ea77ab77de3d12dc01233757cfa

SHA512
94713824b81de323e368fde18679ef8b8f2883378bffd2b7bd2b4e4bd5d48b35c6e71c9f8e9b058ba497db1bd0781807e5b7cecfd540dad611da0986c72b9f12

Download Submit
memory/3520-8-0x000000007494E000-0x000000007494F000-memory.dmp

Filesize
4KB

Download
memory/3520-9-0x0000000000BB0000-0x0000000000BB8000-memory.dmp

Filesize
32KB

Download
memory/3520-10-0x0000000005A50000-0x0000000005FF6000-memory.dmp

Filesize
5.6MB

Download
memory/3520-11-0x0000000005550000-0x00000000055E2000-memory.dmp

Filesize
584KB

Download
memory/3520-12-0x0000000074940000-0x00000000750F1000-memory.dmp

Filesize
7.7MB

Download
memory/3520-13-0x0000000005610000-0x000000000561A000-memory.dmp

Filesize
40KB

Download
memory/3520-14-0x000000007494E000-0x000000007494F000-memory.dmp

Filesize
4KB

Download
memory/3520-15-0x0000000074940000-0x00000000750F1000-memory.dmp

Filesize
7.7MB

Download