1a7ff8b17d703d84698d653da808832d3d81b946c5ed606f0e3d4676c1bd99d6

Analysis

max time kernel
143s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 10:18

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General

Target

uninst.exe
Size

76KB
MD5

6f3832b6e799df1eff3412230cb27186
SHA1

038fab84d662eb5ec0ee2e8876cfc76df0d664bc
SHA256

baa4d062e62105ee60d54206e7750ab57a52a83e353fedc4a9e3bc12ff33bb30
SHA512

c0d56863a151136ffd4543a11d4e6a25e0b2f05186aec016afe1febffef1c92155e3a700e678738cae14a86ac3658d644ab96f70c8cff0dccd7fa875aa6de46e
SSDEEP

1536:Cppal05FyuC/jL052PgFEla4ZJJcCakPohDcA+MnTj1QxJAkLS6pbjD8:Cp8l05FyX0mpa4ZJJc76A+1tLTpjo

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3296	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
3296	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	Au_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninst.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral30/files/0x00070000000234c2-4.dat	nsis_installer_1
behavioral30/files/0x00070000000234c2-4.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 10 IoCs

pid	Process
4500	msedge.exe
4500	msedge.exe
3044	msedge.exe
3044	msedge.exe
1240	identity_helper.exe
1240	identity_helper.exe
2712	msedge.exe
2712	msedge.exe
2712	msedge.exe
2712	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe
3044	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 3296	3176	uninst.exe	84
PID 3176 wrote to memory of 3296	3176	uninst.exe	84
PID 3176 wrote to memory of 3296	3176	uninst.exe	84
PID 3296 wrote to memory of 60	3296	Au_.exe	96
PID 3296 wrote to memory of 60	3296	Au_.exe	96
PID 2648 wrote to memory of 3044	2648	explorer.exe	98
PID 2648 wrote to memory of 3044	2648	explorer.exe	98
PID 3044 wrote to memory of 4196	3044	msedge.exe	100
PID 3044 wrote to memory of 4196	3044	msedge.exe	100
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4284	3044	msedge.exe	101
PID 3044 wrote to memory of 4500	3044	msedge.exe	102
PID 3044 wrote to memory of 4500	3044	msedge.exe	102
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103
PID 3044 wrote to memory of 3924	3044	msedge.exe	103

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3176
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3296
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe" "http://www.yunduan.cn/youradvice.php?code=&a=&b="
    3⤵
    PID:60

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.yunduan.cn/youradvice.php?code=&a=&b=
  2⤵
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3044
- - 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=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ff98a2046f8,0x7ff98a204708,0x7ff98a204718
    3⤵
    PID:4196
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2220 /prefetch:2
    3⤵
    PID:4284
- - 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=2208,10499024681441460126,3386684728919882978,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2320 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4500
- - 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=2208,10499024681441460126,3386684728919882978,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2920 /prefetch:8
    3⤵
    PID:3924
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --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=3364 /prefetch:1
    3⤵
    PID:4780
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3384 /prefetch:1
    3⤵
    PID:3640
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5184 /prefetch:8
    3⤵
    PID:2064
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5184 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1240
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5180 /prefetch:1
    3⤵
    PID:1104
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5264 /prefetch:1
    3⤵
    PID:3624
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5560 /prefetch:1
    3⤵
    PID:4440
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --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=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5528 /prefetch:1
    3⤵
    PID:2044
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2208,10499024681441460126,3386684728919882978,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1436 /prefetch:2
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2712

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4348

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4012

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
847d47008dbea51cb1732d54861ba9c9

SHA1
f2099242027dccb88d6f05760b57f7c89d926c0d

SHA256
10292fa05d896a2952c1d602a72d761d34bc776b44d6a7df87e49b5b613a8ac1

SHA512
bd1526aa1cc1c016d95dfcc53a78b45b09dde4ce67357fc275ab835dbe1bb5b053ca386239f50cde95ad243a9c1bbb12f7505818577589beecc6084f7b94e83f

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

Filesize
152B

MD5
f9664c896e19205022c094d725f820b6

SHA1
f8f1baf648df755ba64b412d512446baf88c0184

SHA256
7121d84202a850791c2320385eb59eda4d697310dc51b1fcd4d51264aba2434e

SHA512
3fa5d2c68a9e70e4a25eaac2095171d87c741eec2624c314c6a56f4fa390d6319633bf4c48b1a4af7e9a0451f346beced9693da88cfc7bcba8dfe209cbd1b3ae

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

Filesize
5KB

MD5
068c1553d132d67c1cd48e2bc15fd267

SHA1
590aaa750ff6c72c2e26d3e1ca17496e3d4cb9da

SHA256
23780af24f2971ad5a59f94fed1a1bf6b93441f18d3cc4ba13e98c279fcead01

SHA512
193eed38276309ebbbbc1bbed6407406686de192d9056ab26fd4d25627bf4f36355f0124c977b8c0fd1c06c6c525660b5035e1e3268e68f57d996e6f250e6425

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

Filesize
6KB

MD5
4efdbe19f91c80ad0101d398ae44a6c5

SHA1
04f8954e0f1c1b110791cde8b43c2511826848d7

SHA256
6651e9d4aa90f99088887559b1e400572e21434fd95fd9b7cfa9fe2fa700cfab

SHA512
5bf4094f02ad87e8174fdba3b37c850a0f648009f1da84f73cbe1e3ab3b9f4dbc2927ea6267d15eaa721e6822d9990864d6d21518cfb5da788f0ee7152e7c395

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

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

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

Filesize
11KB

MD5
6170ac3a1ff449b15acda81e0fdec21f

SHA1
d630d3968334d36b146f162478edfb018be8f8d9

SHA256
c29c20d47d15e7625be14f3edbfec5ff14216d44dfae85f0972a2cd8c0627267

SHA512
a6f34c71616c010bf6e45ea738a6013637294c86663a46141ba931ac68cc5b4eb4351d9fce43cc9202ab1a492f38382e18259f1bd7e2a7e082a18809618907ae

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

Filesize
76KB

MD5
6f3832b6e799df1eff3412230cb27186

SHA1
038fab84d662eb5ec0ee2e8876cfc76df0d664bc

SHA256
baa4d062e62105ee60d54206e7750ab57a52a83e353fedc4a9e3bc12ff33bb30

SHA512
c0d56863a151136ffd4543a11d4e6a25e0b2f05186aec016afe1febffef1c92155e3a700e678738cae14a86ac3658d644ab96f70c8cff0dccd7fa875aa6de46e

Download Submit