b87fc34a41097a56a573aa668f8c9c2d3e83680446d10df69c84299237d5016c

Analysis

max time kernel
129s
max time network
160s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
20-03-2024 11:52

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General

Target

Uninstall 小红书直播助手.exe
Size

168KB
MD5

49f902f4a6980414a07290643385886a
SHA1

2b7cf4ee011525fe83cb1af6e4f7436a1b0ef9aa
SHA256

8e43258d06c1c9bc3c71d979fa9e46a754ac25ea64a9cb653f6264a4ad3411b1
SHA512

f55bd04adf41b86cfed46d679fbae7e270c5d8bd8289f31dccb39c4e4a510af2ce1c9dd119b1bab1252b45911d5d63674805d454dca6b0c20aa69b380e022734
SSDEEP

3072:Un77v00hEoDEtau3lKrvIaZLWT7yBJk7UJna2MNUa8b32tvhOEA1RJCir86SrSrb:U740IHllaMPP82Ua8T2t0EyL+ta7

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Un_A.exe

pid	Process
2124	Un_A.exe

Loads dropped DLL 4 IoCs

Processes:

Un_A.exe

pid	Process
2124	Un_A.exe
2124	Un_A.exe
2124	Un_A.exe
2124	Un_A.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Uninstall 小红书直播助手.exe

description	pid	Process	procid_target
PID 2364 wrote to memory of 2124	2364	Uninstall 小红书直播助手.exe	81
PID 2364 wrote to memory of 2124	2364	Uninstall 小红书直播助手.exe	81
PID 2364 wrote to memory of 2124	2364	Uninstall 小红书直播助手.exe	81

C:\Users\Admin\AppData\Local\Temp\Uninstall 小红书直播助手.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall 小红书直播助手.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2124

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\nsyE6D7.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsyE6D7.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsyE6D7.tmp\UAC.dll

Filesize
14KB

MD5
adb29e6b186daa765dc750128649b63d

SHA1
160cbdc4cb0ac2c142d361df138c537aa7e708c9

SHA256
2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

SHA512
b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsyE6D7.tmp\nsDialogs.dll

Filesize
9KB

MD5
466179e1c8ee8a1ff5e4427dbb6c4a01

SHA1
eb607467009074278e4bd50c7eab400e95ae48f7

SHA256
1e40211af65923c2f4fd02ce021458a7745d28e2f383835e3015e96575632172

SHA512
7508a29c722d45297bfb090c8eb49bd1560ef7d4b35413f16a8aed62d3b1030a93d001a09de98c2b9fea9acf062dc99a7278786f4ece222e7436b261d14ca817

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
168KB

MD5
49f902f4a6980414a07290643385886a

SHA1
2b7cf4ee011525fe83cb1af6e4f7436a1b0ef9aa

SHA256
8e43258d06c1c9bc3c71d979fa9e46a754ac25ea64a9cb653f6264a4ad3411b1

SHA512
f55bd04adf41b86cfed46d679fbae7e270c5d8bd8289f31dccb39c4e4a510af2ce1c9dd119b1bab1252b45911d5d63674805d454dca6b0c20aa69b380e022734

Download Submit