hxxps://github[.]com/mategol/PySilon-malware/releases/tag/v3[.]7[.]3

Analysis

max time kernel
90s
max time network
90s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 20:52

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General

Target

https://github.com/mategol/PySilon-malware/releases/tag/v3.7.3

Score

6^/10

discovery

Malware Config

Signatures

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
81	camo.githubusercontent.com
82	camo.githubusercontent.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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\SystemProductName	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	msedge.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133690064929434590"	msedge.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2170637797-568393320-3232933035-1000\{BBE3B3C1-6F05-4082-997C-09B1F567D759}	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 4132	4296	msedge.exe	115
PID 4296 wrote to memory of 4132	4296	msedge.exe	115
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 2296	4296	msedge.exe	116
PID 4296 wrote to memory of 1308	4296	msedge.exe	117
PID 4296 wrote to memory of 1308	4296	msedge.exe	117
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118
PID 4296 wrote to memory of 4412	4296	msedge.exe	118

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://github.com/mategol/PySilon-malware/releases/tag/v3.7.3
1⤵
PID:1592

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=16 --field-trial-handle=3840,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=4580 /prefetch:1
1⤵
PID:1492

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=15 --field-trial-handle=3972,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=4488 /prefetch:1
1⤵
PID:4524

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=5404,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=5412 /prefetch:8
1⤵
PID:752

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --field-trial-handle=5432,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=5568 /prefetch:8
1⤵
PID:1316

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --field-trial-handle=5884,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=5904 /prefetch:8
1⤵
PID:4984

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=20 --field-trial-handle=5616,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=5392 /prefetch:1
1⤵
PID:1468

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --field-trial-handle=6080,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=6092 /prefetch:1
1⤵
PID:4184

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --field-trial-handle=6176,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=6232 /prefetch:8
1⤵
PID:1720

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --no-startup-window
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4296
- 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:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=127.0.6533.89 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=127.0.2651.86 --initial-client-data=0x238,0x23c,0x240,0x234,0x248,0x7ffac0a4d198,0x7ffac0a4d1a4,0x7ffac0a4d1b0
  2⤵
  PID:4132
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=2332,i,16120379304755518466,16824262508608953316,262144 --variations-seed-version --mojo-platform-channel-handle=2328 /prefetch:2
  2⤵
  PID:2296
- 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 --lang=en-US --service-sandbox-type=none --field-trial-handle=1864,i,16120379304755518466,16824262508608953316,262144 --variations-seed-version --mojo-platform-channel-handle=2364 /prefetch:3
  2⤵
  PID:1308
- 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 --lang=en-US --service-sandbox-type=service --field-trial-handle=2108,i,16120379304755518466,16824262508608953316,262144 --variations-seed-version --mojo-platform-channel-handle=2480 /prefetch:8
  2⤵
  PID:4412
- C:\Program Files (x86)\Microsoft\Edge\Application\127.0.2651.86\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\127.0.2651.86\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --video-capture-use-gpu-memory-buffer --field-trial-handle=4444,i,16120379304755518466,16824262508608953316,262144 --variations-seed-version --mojo-platform-channel-handle=4496 /prefetch:8
  2⤵
  PID:4284
- C:\Program Files (x86)\Microsoft\Edge\Application\127.0.2651.86\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\127.0.2651.86\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --video-capture-use-gpu-memory-buffer --field-trial-handle=4444,i,16120379304755518466,16824262508608953316,262144 --variations-seed-version --mojo-platform-channel-handle=4496 /prefetch:8
  2⤵
  PID:3492

C:\Program Files (x86)\Microsoft\Edge\Application\127.0.2651.86\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\127.0.2651.86\elevation_service.exe"
1⤵
PID:2876

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

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\DualEngine\SiteList-Enterprise.json

Filesize
2B

MD5
99914b932bd37a50b983c5e7c90ae93b

SHA1
bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

SHA256
44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

SHA512
27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

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

Filesize
64KB

MD5
785dcb273ce3b34f67c559066a496baf

SHA1
001979990e64d93e349f59377c394b640459e924

SHA256
cc6590a8939883613f20f1e2de6b09be59dae96d61d994e1b52d657903d46d56

SHA512
813b528fa75c1f3fdabc6e96bc9d636521fc4f583b2d62f54ef4c0a517ddc8d0970853885362ca54687a254b252c1515648cb9e5d6042ffa75aefda3b2938f84

Download Submit