hxxps://novabiz[.]pics/blogs/paychex-flex-login[.]html

Analysis

max time kernel
9s
max time network
15s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
08/05/2024, 19:21

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General

Target

https://novabiz.pics/blogs/paychex-flex-login.html

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
1524	msedge.exe
1524	msedge.exe
3608	msedge.exe
3608	msedge.exe
4304	identity_helper.exe
4304	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3608 wrote to memory of 5060	3608	msedge.exe	79
PID 3608 wrote to memory of 5060	3608	msedge.exe	79
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1552	3608	msedge.exe	80
PID 3608 wrote to memory of 1524	3608	msedge.exe	81
PID 3608 wrote to memory of 1524	3608	msedge.exe	81
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82
PID 3608 wrote to memory of 4664	3608	msedge.exe	82

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://novabiz.pics/blogs/paychex-flex-login.html
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:3608
- 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,0x100,0x104,0xd8,0x108,0x7ffc4d8e46f8,0x7ffc4d8e4708,0x7ffc4d8e4718
  2⤵
  PID:5060
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2132,11322578117973280158,14680294689645315816,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2144 /prefetch:2
  2⤵
  PID:1552
- 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=2132,11322578117973280158,14680294689645315816,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2204 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1524
- 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=2132,11322578117973280158,14680294689645315816,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2756 /prefetch:8
  2⤵
  PID:4664
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,11322578117973280158,14680294689645315816,131072 --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:4196
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,11322578117973280158,14680294689645315816,131072 --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=3328 /prefetch:1
  2⤵
  PID:1308
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,11322578117973280158,14680294689645315816,131072 --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=4876 /prefetch:1
  2⤵
  PID:4764
- 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=2132,11322578117973280158,14680294689645315816,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5184 /prefetch:8
  2⤵
  PID:380
- 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=2132,11322578117973280158,14680294689645315816,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5184 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4304
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,11322578117973280158,14680294689645315816,131072 --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=5176 /prefetch:1
  2⤵
  PID:4708
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,11322578117973280158,14680294689645315816,131072 --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=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5228 /prefetch:1
  2⤵
  PID:3976
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,11322578117973280158,14680294689645315816,131072 --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=5044 /prefetch:1
  2⤵
  PID:3936

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2692

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5012

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
56641592f6e69f5f5fb06f2319384490

SHA1
6a86be42e2c6d26b7830ad9f4e2627995fd91069

SHA256
02d4984e590e947265474d592e64edde840fdca7eb881eebde3e220a1d883455

SHA512
c75e689b2bbbe07ebf72baf75c56f19c39f45d5593cf47535eb722f95002b3ee418027047c0ee8d63800f499038db5e2c24aff9705d830c7b6eaa290d9adc868

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

Filesize
152B

MD5
612a6c4247ef652299b376221c984213

SHA1
d306f3b16bde39708aa862aee372345feb559750

SHA256
9d8e24c91cff338e56b518a533cb2e49a2803356bbf6e04892fb168a7ce2844a

SHA512
34a14d63abb1e3fe0f9927a94393043d458fe0624843e108d290266f554018e6379cba924cb5388735abdd6c5f1e2e318478a673f3f9b762815a758866d10973

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

Filesize
6KB

MD5
132b03588dbca71d284ef52b3e878f9e

SHA1
9c2b6d9d9ff7d4d52d4a761ec9caf3664f1b10e5

SHA256
3252111ff18f5d6e38b2c2cc86aa007689a52476449889751936b555caf29420

SHA512
c0484a0095dfbd2bf9c5a967dbcfbd420613de6ce8a81197bda2b0a8810cc1acc4021eb67dd3c5e53e1d3545c662dce3cb784acc0fceb93d51cb8d5deb22076c

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