21e5881992f89f790d2b1faa050d7fcbd770c91e38d67646c714bf974d908ee5

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 10:47

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General

Target

1857479a1de1529841f2654aab750011.exe
Size

254KB
MD5

1857479a1de1529841f2654aab750011
SHA1

d84033daddec611bf8baceafb54dd05b452f3692
SHA256

21e5881992f89f790d2b1faa050d7fcbd770c91e38d67646c714bf974d908ee5
SHA512

e4e8f422a4e6e1bf864eb8a63790c396b6173bf88f1bfb89e1c4af3299e9208d5ab610731f3076f70d7fd95e15ff0fae75b5532be05d5fd75b46f542d978c251
SSDEEP

6144:JZ+11IdfMSYQNFcy/1RWBT55EqeXKMRwZm/G/HcGH:DdHYQ4s1s15bhop/G/8u

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
888	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
888	Au_.exe
888	Au_.exe
888	Au_.exe
888	Au_.exe

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

System Information Discovery
T1082

NSIS installer 4 IoCs

installer

resource	yara_rule
behavioral2/files/0x000700000002321a-4.dat	nsis_installer_1
behavioral2/files/0x000700000002321a-4.dat	nsis_installer_2
behavioral2/files/0x000700000002321a-3.dat	nsis_installer_1
behavioral2/files/0x000700000002321a-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 888	1008	1857479a1de1529841f2654aab750011.exe	21
PID 1008 wrote to memory of 888	1008	1857479a1de1529841f2654aab750011.exe	21
PID 1008 wrote to memory of 888	1008	1857479a1de1529841f2654aab750011.exe	21

C:\Users\Admin\AppData\Local\Temp\1857479a1de1529841f2654aab750011.exe
"C:\Users\Admin\AppData\Local\Temp\1857479a1de1529841f2654aab750011.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1008
- 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:888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\nsf4854.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

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

Filesize
254KB

MD5
1857479a1de1529841f2654aab750011

SHA1
d84033daddec611bf8baceafb54dd05b452f3692

SHA256
21e5881992f89f790d2b1faa050d7fcbd770c91e38d67646c714bf974d908ee5

SHA512
e4e8f422a4e6e1bf864eb8a63790c396b6173bf88f1bfb89e1c4af3299e9208d5ab610731f3076f70d7fd95e15ff0fae75b5532be05d5fd75b46f542d978c251

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

Filesize
92KB

MD5
e48685d1fcb8af466e664546151cc14b

SHA1
72d15709afea2b0c7f88fe7cfa3197fb3ac6905f

SHA256
f0f6e7345951d894516991334eaf460a2ecb127e2fc95385103a25a9594d79fc

SHA512
0961ad4aaa3c5fe88a767a9be7cdc50160e3c8f6b336e222eed0ac51081eb9a95898f9bfcdc79ccaf601df12aba33701e075b3025be0d21098036ae3ff6f72ef

Download Submit