4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8

Analysis

max time kernel
143s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-11-2024 04:33

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General

Target

4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe
Size

744KB
MD5

8083cf732510be4c79e5b6ce228765ea
SHA1

f4b6508156d8d61bf534b56e9a02087b597c9417
SHA256

4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8
SHA512

4c42bf57b384405745ea291c7096bf3ec75eb12dcffb2707ac07326171c2333ea90212059df5ea7f5b6fdc6ac432dcd145657e2dceb96cc2036a82211639edaa
SSDEEP

12288:ekjX33ZlEIdYwTqOWdMVDiDzemOlsf4+q2d13i95XynWAElsT1dsuH:ZH3ZlE2YoqKwqmvfC23kxTeTn

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\electroretinogrammes\bimester.lnk	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe
2920	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 2920	2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe	30

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	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2920	2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe	30
PID 2100 wrote to memory of 2920	2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe	30
PID 2100 wrote to memory of 2920	2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe	30
PID 2100 wrote to memory of 2920	2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe	30
PID 2100 wrote to memory of 2920	2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe	30
PID 2100 wrote to memory of 2920	2100	4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe	30

C:\Users\Admin\AppData\Local\Temp\4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe
"C:\Users\Admin\AppData\Local\Temp\4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe
  "C:\Users\Admin\AppData\Local\Temp\4d5b8d11a093fb86a961c2bf87aca48a4e2a27bc1dda6e79092691948a84a4b8.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2920

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsoA111.tmp\System.dll

Filesize
11KB

MD5
fc90dfb694d0e17b013d6f818bce41b0

SHA1
3243969886d640af3bfa442728b9f0dff9d5f5b0

SHA256
7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528

SHA512
324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

Download Submit
memory/2100-10-0x0000000077941000-0x0000000077A42000-memory.dmp

Filesize
1.0MB

Download
memory/2100-11-0x0000000077940000-0x0000000077AE9000-memory.dmp

Filesize
1.7MB

Download
memory/2920-12-0x0000000077940000-0x0000000077AE9000-memory.dmp

Filesize
1.7MB

Download
memory/2920-13-0x0000000000450000-0x00000000014B2000-memory.dmp

Filesize
16.4MB

Download