2240bf5fb5d80938b0676c46ef9f84bc1739c32f60c473ff85e530ae0eca2818

Analysis

max time kernel
150s
max time network
156s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
30/08/2024, 15:01

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General

Target

uninstaller.exe
Size

74KB
MD5

bfffc38fff05079b15a5317e279dc7a9
SHA1

0c18db954f11646d65d0300e58fefcd9ff7634de
SHA256

c4e59737ffd988ef4bc7a62e3316a470b1b09a9889f65908110fba3d7b1c6500
SHA512

d30220e024ac242285ea757006e7da3874e5f889951de226d48c372a6a8701b76d4a917134ecc1e72c6c3a8d43444762288e7134a25d837e9f43d972675c81d6
SSDEEP

1536:fRPYqa5pic6jXFdL2KiMcrgCKdO/LeAyNLs9Y0tIdJVgwkL7U3:pPA6jXFN2Mcr/tTeAt9jidJVnkfU

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3484	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
3484	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
3484	Au_.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral10/files/0x000100000002aabe-4.dat	nsis_installer_1
behavioral10/files/0x000100000002aabe-4.dat	nsis_installer_2

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3780	msedge.exe
3780	msedge.exe
3208	msedge.exe
3208	msedge.exe
4676	identity_helper.exe
4676	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe

Suspicious use of SendNotifyMessage 12 IoCs

pid	Process
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe
3208	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2092	MiniSearchHost.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 3484	1028	uninstaller.exe	82
PID 1028 wrote to memory of 3484	1028	uninstaller.exe	82
PID 1028 wrote to memory of 3484	1028	uninstaller.exe	82
PID 3208 wrote to memory of 2452	3208	msedge.exe	95
PID 3208 wrote to memory of 2452	3208	msedge.exe	95
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3068	3208	msedge.exe	96
PID 3208 wrote to memory of 3780	3208	msedge.exe	97
PID 3208 wrote to memory of 3780	3208	msedge.exe	97
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98
PID 3208 wrote to memory of 1860	3208	msedge.exe	98

C:\Users\Admin\AppData\Local\Temp\uninstaller.exe
"C:\Users\Admin\AppData\Local\Temp\uninstaller.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3484

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
1⤵
- Suspicious use of SetWindowsHookEx
PID:2092

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3208
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ff98e963cb8,0x7ff98e963cc8,0x7ff98e963cd8
  2⤵
  PID:2452
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1920 /prefetch:2
  2⤵
  PID:3068
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2320 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3780
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2544 /prefetch:8
  2⤵
  PID:1860
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3284 /prefetch:1
  2⤵
  PID:4560
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3408 /prefetch:1
  2⤵
  PID:948
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4032 /prefetch:1
  2⤵
  PID:4264
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4992 /prefetch:1
  2⤵
  PID:432
- C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1900,1769641463587194695,16906391370717684819,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5300 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4676

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3036

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
03a56f81ee69dd9727832df26709a1c9

SHA1
ab6754cc9ebd922ef3c37b7e84ff20e250cfde3b

SHA256
65d97e83b315d9140f3922b278d08352809f955e2a714fedfaea6283a5300e53

SHA512
e9915f11e74c1bcf7f80d1bcdc8175df820af30f223a17c0fe11b6808e5a400550dcbe59b64346b7741c7c77735abefaf2c988753e11d086000522a05a0f7781

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
d30a5618854b9da7bcfc03aeb0a594c4

SHA1
7f37105d7e5b1ecb270726915956c2271116eab7

SHA256
3494c446aa3cb038f1d920b26910b7fe1f4286db78cb3f203ad02cb93889c1a8

SHA512
efd488fcd1729017a596ddd2950bff07d5a11140cba56ff8e0c62ef62827b35c22857bc4f5f5ea11ccc2e1394c0b3ee8651df62a25e66710f320e7a2cf4d1a77

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
5KB

MD5
f32f8b1a5c393ece827f92f0a1c36708

SHA1
bd2ea59c10c9319ffe9edbea8d72c4ce9d1f7bac

SHA256
2d5ac126775fb1780bee782f9d44c46bceb9c6493908e4ed85bfdc4e5ae15e69

SHA512
3d0408fac39ba61902bf9692ba720556ca08eee0f5ea329473f5132071efb43542267f8b8382282c91367e09422b772d789936daa7fd229eb047c84cd05880d9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
206702161f94c5cd39fadd03f4014d98

SHA1
bd8bfc144fb5326d21bd1531523d9fb50e1b600a

SHA256
1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

SHA512
0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

Download Submit
C:\Users\Admin\AppData\Local\Temp\nskDFE2.tmp\System.dll

Filesize
10KB

MD5
56a321bd011112ec5d8a32b2f6fd3231

SHA1
df20e3a35a1636de64df5290ae5e4e7572447f78

SHA256
bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1

SHA512
5354890cbc53ce51081a78c64ba9c4c8c4dc9e01141798c1e916e19c5776dac7c82989fad0f08c73e81aaba332dad81205f90d0663119af45550b97b338b9cc3

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

Filesize
74KB

MD5
bfffc38fff05079b15a5317e279dc7a9

SHA1
0c18db954f11646d65d0300e58fefcd9ff7634de

SHA256
c4e59737ffd988ef4bc7a62e3316a470b1b09a9889f65908110fba3d7b1c6500

SHA512
d30220e024ac242285ea757006e7da3874e5f889951de226d48c372a6a8701b76d4a917134ecc1e72c6c3a8d43444762288e7134a25d837e9f43d972675c81d6

Download Submit