hxxp://pdfalcon[.]com/gotoapp/

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 18:53

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General

Target

http://pdfalcon.com/gotoapp/

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 10 IoCs

pid	Process
4936	msedge.exe
4936	msedge.exe
4980	msedge.exe
4980	msedge.exe
4428	identity_helper.exe
4428	identity_helper.exe
852	msedge.exe
852	msedge.exe
852	msedge.exe
852	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs

pid	Process
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe
4980	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 3388	4980	msedge.exe	82
PID 4980 wrote to memory of 3388	4980	msedge.exe	82
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4696	4980	msedge.exe	83
PID 4980 wrote to memory of 4936	4980	msedge.exe	84
PID 4980 wrote to memory of 4936	4980	msedge.exe	84
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85
PID 4980 wrote to memory of 2084	4980	msedge.exe	85

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://pdfalcon.com/gotoapp/
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:4980
- 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,0x100,0x104,0xd8,0x108,0x7ffd8c1346f8,0x7ffd8c134708,0x7ffd8c134718
  2⤵
  PID:3388
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2092 /prefetch:2
  2⤵
  PID:4696
- 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=2108,10033423831492930135,14432538641171731228,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2172 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4936
- 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=2108,10033423831492930135,14432538641171731228,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2736 /prefetch:8
  2⤵
  PID:2084
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=3272 /prefetch:1
  2⤵
  PID:2872
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=3288 /prefetch:1
  2⤵
  PID:2760
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=4936 /prefetch:1
  2⤵
  PID:4536
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=3516 /prefetch:1
  2⤵
  PID:3260
- 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=2108,10033423831492930135,14432538641171731228,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5040 /prefetch:8
  2⤵
  PID:4476
- 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=2108,10033423831492930135,14432538641171731228,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5040 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4428
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=5100 /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=2108,10033423831492930135,14432538641171731228,131072 --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=5244 /prefetch:1
  2⤵
  PID:420
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=3928 /prefetch:1
  2⤵
  PID:2032
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=5440 /prefetch:1
  2⤵
  PID:3080
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3100 /prefetch:1
  2⤵
  PID:1060
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4444 /prefetch:1
  2⤵
  PID:5000
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2108,10033423831492930135,14432538641171731228,131072 --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=1812 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:852

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2244

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3380

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
c9c4c494f8fba32d95ba2125f00586a3

SHA1
8a600205528aef7953144f1cf6f7a5115e3611de

SHA256
a0ca609205813c307df9122c0c5b0967c5472755700f615b0033129cf7d6b35b

SHA512
9d30cea6cfc259e97b0305f8b5cd19774044fb78feedfcef2014b2947f2e6a101273bc4ad30db9cc1724e62eb441266d7df376e28ac58693f128b9cce2c7d20d

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

Filesize
152B

MD5
4dc6fc5e708279a3310fe55d9c44743d

SHA1
a42e8bdf9d1c25ef3e223d59f6b1d16b095f46d2

SHA256
a1c5f48659d4b3af960971b3a0f433a95fee5bfafe5680a34110c68b342377d8

SHA512
5874b2310187f242b852fa6dcded244cc860abb2be4f6f5a6a1db8322e12e1fef8f825edc0aae75adbb7284a2cd64730650d0643b1e2bb7ead9350e50e1d8c13

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

Filesize
6KB

MD5
377dced1590953a1d0d6590804b96d03

SHA1
06a37df9c56ec05df4a3c88c7c4f55dfb298f689

SHA256
221da882e5d34bf5950f6dcbd4910048262488901aea10e584e30454746af523

SHA512
952dcf8df51ea757948a880d1cdf051597aec7bcd1c84a4f352283bbf5c5bb1005bbaf21ab7a6a404d7e4bd932f852e294e6e1148ba54c90bad755692fbb4c80

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

Filesize
6KB

MD5
8b977fad24deacf3d6c30f182465fe77

SHA1
067090512e64ba738c683f2582295ce9d1dceef2

SHA256
9df86580c8c0fd72ec8c4a874c2340a7524988e38cdd6ab3712982ca0cdcc397

SHA512
f2e6f1c43947195a88427ff1f10ba3b0cee5de1163941125d088c81a01a639508b288f66eccc74fa3a5ab0fffda6ba49f488e219d3aa5cafba8daa20ea550419

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\d009f2b5-f814-46ca-a4dc-575ecd3c3855.tmp

Filesize
6KB

MD5
7279b0b9e46115d0ae00e3e70dace315

SHA1
d9a79bc1b755f37f59e43f4a8754e0bf4ce72ea7

SHA256
82d813443dd84d3741e3548d738454eec2afdddc280d9c193c457a6670d47350

SHA512
53f025bdf0c0b59c78d2c463862915328ba2f1afc6be8c789dece624949f5235efbe544a84f425fffab4c31b3a2ef4c1e87fbc2f44bd232cf845656420caf0c5

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\Microsoft\Edge\User Data\Local State

Filesize
11KB

MD5
9e378d05f930c06aabe6db7e1e3e12b8

SHA1
a20544c44174e2e60d06dd36323a81c86aff23dd

SHA256
728ae034ae015bb495a10aed66464e8d83a4268740c1ed2897f77cc7cc0dbd26

SHA512
527aa48c8741db668be623b89c96623c833c7fde9c388c25dd39b6aa6fef4ef504566b86fa35efef35dbae2c2f24a72cfc9f32b09bad27b9ede56d35a4ff94c6

Download Submit