f6de40a0e0c5b51daa70456189d10f7fc1e7dcd36168cf8afcb17035efda6686

Analysis

max time kernel
122s
max time network
34s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-03-2024 10:26

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General

Target

Uninstall.exe
Size

1.7MB
MD5

65a8d4d556099f4a62b3ab141034f38e
SHA1

38d2ee2b7a2c363cd99ab46d03fab2b87ff00d9e
SHA256

caff82547f14b0afff408cd83625321ad00c5145d9086e7f5c74c6ca10899f54
SHA512

f3ad2c0fb2d78551f6a65cbd4aae6a3ea5f3653e4456ec9fb4aa36ab299fffe9712acb3da91b272f9cef7f2d7216e38a9685d9179bf72f6f9cae6cebc5d8f8f5
SSDEEP

24576:0GTJPUbMP326XBoBBYHsIfDczcu5IOQ6LbitlK3cBD5Mm1cBJkkMG5pOVUWjPSdD:FI2G0oWMIoVljGG3aqmQkk9OOpt

Score

4^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2644	Au_.exe

Loads dropped DLL 10 IoCs

pid	Process
2520	Uninstall.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe
2644	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2644	2520	Uninstall.exe	30
PID 2520 wrote to memory of 2644	2520	Uninstall.exe	30
PID 2520 wrote to memory of 2644	2520	Uninstall.exe	30
PID 2520 wrote to memory of 2644	2520	Uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2520
- 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
  - Suspicious behavior: EnumeratesProcesses
  PID:2644

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\nsoF48E.tmp\WeChatInstallDll.dll

Filesize
3.6MB

MD5
91153d3fc0b835b072aeebc4d8837faf

SHA1
1e1e524be7c69077229973e385c447d9692ad937

SHA256
a7971bce47584535e9033f9d72d8f6f386c7d8deef3b93e11de50cf9574f7413

SHA512
2b49c6d701cc6f0d25a81258dcec2159ab3ea30389d18aadcc486c540f5daf6adedf998def1bf5c5fb4a5712755dbca710387c862a89138b23ec081682e835ec

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

Filesize
377KB

MD5
e85fe52b8ee9dd4970c33aa0c64fdd36

SHA1
a979a5ee385b014c6bdebeae2ebfda4d540ba930

SHA256
2dd1fa4e07be2551422fd2e1f13d1ba845e54a7c78553ed6d1ad97a62f9c5aea

SHA512
9c42e05498dba6e6a478cb4af4816a17e02935574bd9b0dc7a6231bf37b3d81fa4babdbc48a2c094c6008151f9da69bb0d32de00bbad300c4d3e614ba44bfbd9

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

Filesize
1.7MB

MD5
65a8d4d556099f4a62b3ab141034f38e

SHA1
38d2ee2b7a2c363cd99ab46d03fab2b87ff00d9e

SHA256
caff82547f14b0afff408cd83625321ad00c5145d9086e7f5c74c6ca10899f54

SHA512
f3ad2c0fb2d78551f6a65cbd4aae6a3ea5f3653e4456ec9fb4aa36ab299fffe9712acb3da91b272f9cef7f2d7216e38a9685d9179bf72f6f9cae6cebc5d8f8f5

Download Submit
\Users\Admin\AppData\Local\Temp\nsoF48E.tmp\FindProcDLL.dll

Filesize
492KB

MD5
633625aa3be670a515fa87ff3a566d90

SHA1
de035c083125aef5df0a55c153ef6cc4dd4c15b4

SHA256
bda8e0ddb672ea3558ad68634c49da06cd72f93d7fca642ca41df00e26512df1

SHA512
3c687ddf0e4e93a6787a23a93e2011df42898f6d21101c848a1b7c7bd2eddd5d49fdd0748e47e6235e7808596d00a1ecf79b5c975d050dd8d00a95f515a444a9

Download Submit
\Users\Admin\AppData\Local\Temp\nsoF48E.tmp\System.dll

Filesize
11KB

MD5
ca332bb753b0775d5e806e236ddcec55

SHA1
f35ef76592f20850baef2ebbd3c9a2cfb5ad8d8f

SHA256
df5ae79fa558dc7af244ec6e53939563b966e7dbd8867e114e928678dbd56e5d

SHA512
2de0956a1ad58ad7086e427e89b819089f2a7f1e4133ed2a0a736adc0614e8588ebe2d97f1b59ab8886d662aeb40e0b4838c6a65fbfc652253e3a45664a03a00

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

Filesize
832KB

MD5
91fc9ddbcc97f951cdabc8b9061188b2

SHA1
d39fd69e26ecf5dfb272de13a299ec5ff16a3a1e

SHA256
1480e5eaf53fbe0b492cf4d9fd33b6acf3a4ab9b0d2ea1e6e5373bc5857abec7

SHA512
7a8fe970dd56cac4a7953c7b958a9138bc11bf98f246cd842820587c49a4d78feeb97043377dd7a32cedb0a2338aec88fdac952667f726282ec7f0baa506fedb

Download Submit
memory/2644-24-0x0000000007320000-0x00000000073CB000-memory.dmp

Filesize
684KB

Download