fba6e33146d0782a81f329d7ce16e4c4b35f5c649687cde7cc5310f2fd7cb94a

Analysis

max time kernel
78s
max time network
84s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2023 04:41

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General

Target

Au_.exe
Size

622KB
MD5

0e22e9e64109074472957e121c6e0fe5
SHA1

5d8cab1e58918596cb0ed2f458d1ef4cc2512846
SHA256

fba6e33146d0782a81f329d7ce16e4c4b35f5c649687cde7cc5310f2fd7cb94a
SHA512

6736a8d6feb988e47b905356e6d72166eeb8a6d7a0936e75e08f82cf0b263d1fb45879cf4e6acbe435c2c2179f45d195e283643bb3088c980c2e15c28d96c0c9
SSDEEP

12288:/0gwd9uQ7KV2zUx90MtSMMNNN+NMSMNSjNApNzYNyMNypwMStM7nMMyv+MNMNNa/:cNd95KRVr

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3440	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
3440	Au_.exe
3440	Au_.exe
3440	Au_.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 3440	1308	Au_.exe	85
PID 1308 wrote to memory of 3440	1308	Au_.exe	85
PID 1308 wrote to memory of 3440	1308	Au_.exe	85

C:\Users\Admin\AppData\Local\Temp\Au_.exe
"C:\Users\Admin\AppData\Local\Temp\Au_.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3440

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsl7EDA.tmp\System.dll

Filesize
11KB

MD5
bf712f32249029466fa86756f5546950

SHA1
75ac4dc4808ac148ddd78f6b89a51afbd4091c2e

SHA256
7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af

SHA512
13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7EDA.tmp\System.dll

Filesize
11KB

MD5
bf712f32249029466fa86756f5546950

SHA1
75ac4dc4808ac148ddd78f6b89a51afbd4091c2e

SHA256
7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af

SHA512
13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7EDA.tmp\UserInfo.dll

Filesize
4KB

MD5
c7ce0e47c83525983fd2c4c9566b4aad

SHA1
38b7ad7bb32ffae35540fce373b8a671878dc54e

SHA256
6293408a5fa6d0f55f0a4d01528eb5b807ee9447a75a28b5986267475ebcd3ae

SHA512
ee9f23ea5210f418d4c559628bbfb3a0f892440bcd5dc4c1901cb8e510078e4481ea8353b262795076a19055e70b88e08fee5fb7e8f35a6f49022096408df20e

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7EDA.tmp\UserInfo.dll

Filesize
4KB

MD5
c7ce0e47c83525983fd2c4c9566b4aad

SHA1
38b7ad7bb32ffae35540fce373b8a671878dc54e

SHA256
6293408a5fa6d0f55f0a4d01528eb5b807ee9447a75a28b5986267475ebcd3ae

SHA512
ee9f23ea5210f418d4c559628bbfb3a0f892440bcd5dc4c1901cb8e510078e4481ea8353b262795076a19055e70b88e08fee5fb7e8f35a6f49022096408df20e

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7EDA.tmp\modern-wizard.bmp

Filesize
150KB

MD5
ea2df333b179355db6b9f35681c92244

SHA1
151131d2a3ed50978ecb0714c079ea6535598903

SHA256
97389b63f4c80195c5166af311ceff1d9cc6ea59c533b453500d0f0af85c27d4

SHA512
122b59e886f5429661e0d68bdd2dc13ebaee087b90bc4cd35d19fdd4cef1ff63d8aa0b0e0247f660cbf44236e7397c8a9b03e7ed992d7c2f87dbc6e6acbccdf5

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7EDA.tmp\nsDialogs.dll

Filesize
9KB

MD5
4ccc4a742d4423f2f0ed744fd9c81f63

SHA1
704f00a1acc327fd879cf75fc90d0b8f927c36bc

SHA256
416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6

SHA512
790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7EDA.tmp\nsDialogs.dll

Filesize
9KB

MD5
4ccc4a742d4423f2f0ed744fd9c81f63

SHA1
704f00a1acc327fd879cf75fc90d0b8f927c36bc

SHA256
416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6

SHA512
790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
622KB

MD5
0e22e9e64109074472957e121c6e0fe5

SHA1
5d8cab1e58918596cb0ed2f458d1ef4cc2512846

SHA256
fba6e33146d0782a81f329d7ce16e4c4b35f5c649687cde7cc5310f2fd7cb94a

SHA512
6736a8d6feb988e47b905356e6d72166eeb8a6d7a0936e75e08f82cf0b263d1fb45879cf4e6acbe435c2c2179f45d195e283643bb3088c980c2e15c28d96c0c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
622KB

MD5
0e22e9e64109074472957e121c6e0fe5

SHA1
5d8cab1e58918596cb0ed2f458d1ef4cc2512846

SHA256
fba6e33146d0782a81f329d7ce16e4c4b35f5c649687cde7cc5310f2fd7cb94a

SHA512
6736a8d6feb988e47b905356e6d72166eeb8a6d7a0936e75e08f82cf0b263d1fb45879cf4e6acbe435c2c2179f45d195e283643bb3088c980c2e15c28d96c0c9

Download Submit