hxxp://www[.]muehlhan[.]com/

Analysis

max time kernel
47s
max time network
52s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 10:34

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General

Target

http://www.muehlhan.com/

Score

1^/10

Malware Config

Signatures

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
4332	msedge.exe
4332	msedge.exe
1312	msedge.exe
1312	msedge.exe
3888	identity_helper.exe
3888	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs

pid	Process
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 4360	1312	msedge.exe	82
PID 1312 wrote to memory of 4360	1312	msedge.exe	82
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 404	1312	msedge.exe	83
PID 1312 wrote to memory of 4332	1312	msedge.exe	84
PID 1312 wrote to memory of 4332	1312	msedge.exe	84
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85
PID 1312 wrote to memory of 2364	1312	msedge.exe	85

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.muehlhan.com/
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:1312
- 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffaac6e46f8,0x7ffaac6e4708,0x7ffaac6e4718
  2⤵
  PID:4360
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2176 /prefetch:2
  2⤵
  PID:404
- 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=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2244 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4332
- 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=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2956 /prefetch:8
  2⤵
  PID:2364
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --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=3288 /prefetch:1
  2⤵
  PID:5084
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --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=3300 /prefetch:1
  2⤵
  PID:5052
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --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=5068 /prefetch:1
  2⤵
  PID:1904
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=5388 /prefetch:8
  2⤵
  PID:3860
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5424 /prefetch:1
  2⤵
  PID:5064
- 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=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5312 /prefetch:8
  2⤵
  PID:1212
- 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=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5312 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3888
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3548 /prefetch:1
  2⤵
  PID:64
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3600 /prefetch:1
  2⤵
  PID:3212
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5832 /prefetch:1
  2⤵
  PID:4776
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2168,2429880661528485104,15343113604458915365,131072 --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=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5696 /prefetch:1
  2⤵
  PID:4256

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3532

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3944

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x2f4 0x500
1⤵
PID:2028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

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
81e892ca5c5683efdf9135fe0f2adb15

SHA1
39159b30226d98a465ece1da28dc87088b20ecad

SHA256
830f394548cff6eed3608476190a7ee7d65fe651adc638c5b27ce58639a91e17

SHA512
c943f4cfe8615ac159cfac13c10b67e6c0c9093851dd3ac6dda3b82e195d3554e3c37962010a2d0ae5074828d376402624f0dda5499c9997e962e4cfd26444c0

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

Filesize
152B

MD5
56067634f68231081c4bd5bdbfcc202f

SHA1
5582776da6ffc75bb0973840fc3d15598bc09eb1

SHA256
8c08b0cbceb301c8f960aa674c6e7f6dbf40b4a1c2684e6fb0456ec5ff0e56b4

SHA512
c4657393e0b9ec682570d7e251644a858d33e056ccd0f3eebffd0fde25244b3a699b8d9244bcdac00d6f74b49833629b270e099c2b557f729a9066922583f784

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

Filesize
744B

MD5
fd0e2a8b62365e5aa2f27333d81ac0fe

SHA1
811dd57616bba1b800dec28084474b9c578786f4

SHA256
0fbfd24c3b17c4ca8cf3165c2e11767ab6badd7236dcb7142f64e52322f2b074

SHA512
ae44e912905da95ea2246a2554b070c5cc4d18b9693fff5d413efaa9ed5358844a2f7bad147c7c0bb4ee6611c8805c83edd53c2351f6d6d0de32c1821d29cb27

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

Filesize
5KB

MD5
cf676dc54d1501e1fa2b961676623865

SHA1
0bf350ffe84d33f10069ea23885c04c619d966ed

SHA256
9916abe4b8344abc188f9b57eaeae43690fbf8e0569a9a503cf952d30ea2fea5

SHA512
1f928d63e15d85e160515b1f426e1dfb466b01eaea629a6d455c47a9da5d17460855799ef86afaf661f8475be13d0aec5690aeb73de0543f92f9803e6e8a1695

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

Filesize
6KB

MD5
1e377453d1d0206954c16fe410a17001

SHA1
8495714232e8e57d98e3ea9ec97e4010b7e6573f

SHA256
dbe071ea98eccb08f636d90cfe73e7b6e5ca1bc59b2507fa40c767c2438bda89

SHA512
4a42b804f04152c4bc8315ef765fdaddba06c3ef01822131a4118154bd58558bde2d43154ef89fd671bfb6df41882cfe7e491d88a9a7c26e918bb27a99098ff2

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

Filesize
6KB

MD5
a60dd53b0249162a6f46850d64683372

SHA1
e9aebf3a87f18ceba3755140e46743ebc2c70897

SHA256
ae6696560b221f3efab01bf9f276ef285f8033c9f7fe2bf1b0f44f1ca2a2eef0

SHA512
53034134999e11fae5b5828d50a9e19b07e21b7181f0070228066cd3e9a0092e709a0b0bdf5f35b6174d21fa99427022b62ee8fd8664b6ca21d84d3ba4b0ac12

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\000004.dbtmp

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
cee748ff5bb905427dfc8aca1034e66f

SHA1
9c4c3634e3c67336eb06351dee5b73d3d469735d

SHA256
17f17eb3c789599fed44f4b2bdeafea7946da70f1a0c40e13ac93311a9140f90

SHA512
db1e452eba8d4e9270f27fcaae93211c5666c499b1eb464be5826f8d574236f908430101d97283b1e5baafb00149b8544ccf0da41b7b9351e6d5f06696b9b40e

Download Submit