hxxps://postoffice[.]adobe[.]com/po-server/link/open?source=eyJhbGciOiJIUzUxMiJ9[.]eyJ0ZW1wbGF0ZSI6InJlbmdhX3Byb2FjdGl2ZV9wYXNzd29yZF9yZXNldCIsImVtYWlsQWRkcmVzcyI6ImFsaC5mYUBhZGlhLmFlIiwicmVxdWVzdElkIjoiYTdlODFkOTEtOGJiOS00MTFmLWI4ZjAtNzJjYjZjODA0YWFjIiwibG9jYWxlIjoiZW5fVVMifQ[.]9xnLqARf4u_uuFvx4vUOSpSo1zLdrQfgHx469dqMR7fmE743oaQa5O2ZlCn-MdSzdQXTd4WY7iolMA2-kARuzw

Analysis

max time kernel
145s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 15:05

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General

Target

https://postoffice.adobe.com/po-server/link/open?source=eyJhbGciOiJIUzUxMiJ9.eyJ0ZW1wbGF0ZSI6InJlbmdhX3Byb2FjdGl2ZV9wYXNzd29yZF9yZXNldCIsImVtYWlsQWRkcmVzcyI6ImFsaC5mYUBhZGlhLmFlIiwicmVxdWVzdElkIjoiYTdlODFkOTEtOGJiOS00MTFmLWI4ZjAtNzJjYjZjODA0YWFjIiwibG9jYWxlIjoiZW5fVVMifQ.9xnLqARf4u_uuFvx4vUOSpSo1zLdrQfgHx469dqMR7fmE743oaQa5O2ZlCn-MdSzdQXTd4WY7iolMA2-kARuzw

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

msedge.exe

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

Processes:

msedge.exemsedge.exeidentity_helper.exemsedge.exe

pid	process
1772	msedge.exe
1772	msedge.exe
736	msedge.exe
736	msedge.exe
3916	identity_helper.exe
3916	identity_helper.exe
3048	msedge.exe
3048	msedge.exe
3048	msedge.exe
3048	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

Processes:

msedge.exe

pid process

736 msedge.exe
736 msedge.exe
736 msedge.exe
736 msedge.exe
736 msedge.exe
736 msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

Processes:

msedge.exe

pid	process
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

Processes:

msedge.exe

pid	process
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe
736	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

msedge.exe

description	pid	process	target process
PID 736 wrote to memory of 3572	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3572	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 3584	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 1772	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 1772	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe
PID 736 wrote to memory of 2372	736	msedge.exe	msedge.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://postoffice.adobe.com/po-server/link/open?source=eyJhbGciOiJIUzUxMiJ9.eyJ0ZW1wbGF0ZSI6InJlbmdhX3Byb2FjdGl2ZV9wYXNzd29yZF9yZXNldCIsImVtYWlsQWRkcmVzcyI6ImFsaC5mYUBhZGlhLmFlIiwicmVxdWVzdElkIjoiYTdlODFkOTEtOGJiOS00MTFmLWI4ZjAtNzJjYjZjODA0YWFjIiwibG9jYWxlIjoiZW5fVVMifQ.9xnLqARf4u_uuFvx4vUOSpSo1zLdrQfgHx469dqMR7fmE743oaQa5O2ZlCn-MdSzdQXTd4WY7iolMA2-kARuzw
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:736
- 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,0x100,0x104,0xd8,0x108,0x7fff61f746f8,0x7fff61f74708,0x7fff61f74718
  2⤵
  PID:3572
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2128 /prefetch:2
  2⤵
  PID:3584
- 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=2120,3141472947749854136,892080138374093263,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2180 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1772
- 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=2120,3141472947749854136,892080138374093263,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2948 /prefetch:8
  2⤵
  PID:2372
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --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=3320 /prefetch:1
  2⤵
  PID:4940
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --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=3332 /prefetch:1
  2⤵
  PID:1924
- 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=2120,3141472947749854136,892080138374093263,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5060 /prefetch:8
  2⤵
  PID:4792
- 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=2120,3141472947749854136,892080138374093263,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5060 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3916
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --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=5136 /prefetch:1
  2⤵
  PID:4396
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --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=5152 /prefetch:1
  2⤵
  PID:1148
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --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=5436 /prefetch:1
  2⤵
  PID:4320
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --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=5464 /prefetch:1
  2⤵
  PID:3408
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2120,3141472947749854136,892080138374093263,131072 --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=3728 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3048

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:404

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3608

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
1ac52e2503cc26baee4322f02f5b8d9c

SHA1
38e0cee911f5f2a24888a64780ffdf6fa72207c8

SHA256
f65058c6f1a745b37a64d4c97a8e8ee940210273130cec97a67f568088b5d4d4

SHA512
7670d606bc5197ecb7db3ddaecd6f74a80e6decae92b94e0e8145a7f463fa099058e89f9dfa1c45b9197c36e5e21994698186a2ec970bbdb0937fe28ca46a834

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

Filesize
152B

MD5
b2a1398f937474c51a48b347387ee36a

SHA1
922a8567f09e68a04233e84e5919043034635949

SHA256
2dc0bf08246ddd5a32288c895d676017578d792349ca437b1b36e7b2f0ade6d6

SHA512
4a660c0549f7a850e07d8d36dab33121af02a7bd7e9b2f0137930b4c8cd89b6c5630e408f882684e6935dcb0d5cb5e01a854950eeda252a4881458cafcc7ef7c

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

Filesize
5KB

MD5
b1ed925eb5a86a044c0fbc3226edf768

SHA1
01d19d41b9ebdc4aceddc54d54f461c9e199ec31

SHA256
3dd805f8a13c5eab57befed05fa27ffd8137c77085f2ab4273026a59020e82a9

SHA512
41f09670afc6e7893eeeb4c37a75c8bb1976d0cab9339122d2fd72d949e88a361274eef43f173312c3070d8c9d170935d10f7135ddd6c06572bca548c99147a4

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

Filesize
6KB

MD5
935f7e4a9ea232a8afd572cc5d9936df

SHA1
d846f60ae7c85b145d9572946aa4dbc8350c8e5a

SHA256
f355d65dc060ff65014d918e2f4cb1e4bc0342ddbeb4177f203a10e4aed9ed9f

SHA512
15c8f2ca4bd095f940b9a5127d35e234b6404312df3505c9b248d038c237562beb0db2657feee546373732f53e1aa8b3b01909b6994342dc72836caf963573d1

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
a14307256e6050ca7bf00d9a1062cb3b

SHA1
1980e0e38ca8bcfcb521131664ae3d35d16464bc

SHA256
bf93dc084dd30075c5b470b207c33d458c8f224fe8d1d46e0a88c7b74f83068c

SHA512
d35e3c3880b4b8e44a9cae23bf049195e3f29b481fb02a18b058e4a0ad657de2465c9a0c4c1c1a0fd7cd98d6d50b1ed593248445231965b1d012f12bf4050546

Download Submit
\??\pipe\LOCAL\crashpad_736_NJJINWSQRBQQESYM

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit