b452a00b0efa9aaa19d652d3ae095771570674b6310712ec28fca66a6becb490

Analysis

max time kernel
118s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/09/2024, 07:17

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General

Target

bcfbebe1a2c1e773b77256a0c28eb360N.exe
Size

61KB
MD5

bcfbebe1a2c1e773b77256a0c28eb360
SHA1

66bbfa1a447c6ea8cdda468a421007fbca37afef
SHA256

b452a00b0efa9aaa19d652d3ae095771570674b6310712ec28fca66a6becb490
SHA512

7ab689b69406779db1a68b6a3427c99930ee280bd5f2d7a432c0d65f53beb34f647f8ca37c2aa77663d77b23362b34e0286468bbd3f9b4a26bb7a79e1fe279dc
SSDEEP

384:PsjPGY2HXgrk8YhQ98E8I1XAV/QcaYpATUgch1A9NB/erxlRufmC9T:PePG5H8+hKD8ISZQjkgs1lxlRAmCJ

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	bcfbebe1a2c1e773b77256a0c28eb360N.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	winupdate.exe

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 2 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	bcfbebe1a2c1e773b77256a0c28eb360N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 3028	1724	bcfbebe1a2c1e773b77256a0c28eb360N.exe	88
PID 1724 wrote to memory of 3028	1724	bcfbebe1a2c1e773b77256a0c28eb360N.exe	88
PID 1724 wrote to memory of 3028	1724	bcfbebe1a2c1e773b77256a0c28eb360N.exe	88

C:\Users\Admin\AppData\Local\Temp\bcfbebe1a2c1e773b77256a0c28eb360N.exe
"C:\Users\Admin\AppData\Local\Temp\bcfbebe1a2c1e773b77256a0c28eb360N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\winupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\winupdate.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

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\AppData\Local\Temp\winupdate.exe

Filesize
61KB

MD5
87cd4157e4480dc7954857964259cd7f

SHA1
128db999314bf5b4d3e0a7d530c3c1e13e7d9fd6

SHA256
a191abd8b4a1e571bf0ada0d2cd6325d430ea4bb4670f6a2fa2301388536780f

SHA512
5296b844896192d1cb64373611004555874752f4a640d6cad3407686d9fed0e331c6093e8bfb2de031098720b97f8eff32f7775109b335d78fcf7de5359ad666

Download Submit
memory/1724-0-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download
memory/1724-1-0x0000000000501000-0x0000000000502000-memory.dmp

Filesize
4KB

Download
memory/1724-10-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download
memory/3028-11-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download