6abf9fcec5883b6e4d70810e60bd2d8a133a1a62bc28ca5d17dcc6f45d35214a

Analysis

max time kernel
147s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-05-2024 17:39

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General

Target

Uninstall.exe
Size

85KB
MD5

1051242fb44103a5534ff0356c1b00fb
SHA1

513bf55b6813bd9ff19ca7bf2b6979a3ef8b5b1d
SHA256

a5d85bfcb4373db41295deef8d54f4591edf69403d6bb709a5ccd861455d1af7
SHA512

54670c286816ab9b853eaad0ca928e69e061eb233fa3979c2dd37fae379e50a4cc86f67504c2b0205df23c30ef2218edd23ba68caa72c5495aeeeb338728f74a
SSDEEP

1536:QCaIoX1oYOcbTMV88TXJLEDnnrmnx36FPhjtxQsOk63dcBuX6gSzR/7N:QCaZ2Yrb0VTXJYDnqxwZWX3we6Z9R

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Au_.exe

pid process

1472 Au_.exe
Loads dropped DLL 3 IoCs

Processes:

Au_.exe

pid process

1472 Au_.exe
1472 Au_.exe
1472 Au_.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1472	Au_.exe

pid	process
1472	Au_.exe
1472	Au_.exe
1472	Au_.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Uninstall.exe

description	pid	process	target process
PID 1904 wrote to memory of 1472	1904	Uninstall.exe	Au_.exe
PID 1904 wrote to memory of 1472	1904	Uninstall.exe	Au_.exe
PID 1904 wrote to memory of 1472	1904	Uninstall.exe	Au_.exe

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1904
- 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:1472

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3932 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:4740

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\nsw16DF.tmp\InstallOptions.dll

Filesize
14KB

MD5
714e0ecd29f9ec555f350f38672726c7

SHA1
555b1492e782d7a30f280f2aecb64c642c1aaad3

SHA256
21fea4cf18de8e25d0ffa3375699150fcd04e6d470358696f2dffdd3fc09d7f3

SHA512
ced5814f25b688d1ede5a1395bcca69e1a0cba260104f156dc03de6ebb2015f6d832fed86ac234c36a10a75be33f489a63c8bd6111e3aaf4b078af1d94b00312

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C:\Users\Admin\AppData\Local\Temp\nsw16DF.tmp\System.dll

Filesize
11KB

MD5
960a5c48e25cf2bca332e74e11d825c9

SHA1
da35c6816ace5daf4c6c1d57b93b09a82ecdc876

SHA256
484f8e9f194ed9016274ef3672b2c52ed5f574fb71d3884edf3c222b758a75a2

SHA512
cc450179e2d0d56aee2ccf8163d3882978c4e9c1aa3d3a95875fe9ba9831e07ddfd377111dc67f801fa53b6f468a418f086f1de7c71e0a5b634e1ae2a67cd3da

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C:\Users\Admin\AppData\Local\Temp\nsw16DF.tmp\ioSpecial.ini

Filesize
572B

MD5
adbe522982cf833f15829c71049e5ccc

SHA1
d4eb95ffb306a1d0c4b3d969650910d7e932e88d

SHA256
71f7fc0cb69e69330e227e3ae688a7619e74d23887036e2b5517227f73df0502

SHA512
8af15d4c9e4e3a22608622c366dc26e9d0fe7e246fd2faec5f047cbfe94694c3bba0e730277e7e394509c2341b5086bb9a12222fc922823dd4a79cdabebdb203

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

Filesize
85KB

MD5
1051242fb44103a5534ff0356c1b00fb

SHA1
513bf55b6813bd9ff19ca7bf2b6979a3ef8b5b1d

SHA256
a5d85bfcb4373db41295deef8d54f4591edf69403d6bb709a5ccd861455d1af7

SHA512
54670c286816ab9b853eaad0ca928e69e061eb233fa3979c2dd37fae379e50a4cc86f67504c2b0205df23c30ef2218edd23ba68caa72c5495aeeeb338728f74a

Download Submit