hxxps://bcipaint-my[.]sharepoint[.]com[:]443/[:]o[:]/p/daryl/EgwqFrBaCtVHmaN_whNn7e0Bsj7VY_4mNkPImPSAdXW15Q?e=5%3aelubY4&at=9

Resubmissions

04/11/2022, 15:40

221104-s37qcsaeaj 1

04/11/2022, 13:01

221104-p9ljxsfch3 1

04/11/2022, 13:00

221104-p8s8dahdcj 1

Analysis

max time kernel
141s
max time network
151s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
04/11/2022, 15:40

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Report Analysis Logs

General

Target

https://bcipaint-my.sharepoint.com:443/:o:/p/daryl/EgwqFrBaCtVHmaN_whNn7e0Bsj7VY_4mNkPImPSAdXW15Q?e=5%3aelubY4&at=9

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz	firefox.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3532	firefox.exe
Token: SeDebugPrivilege	3532	firefox.exe
Token: SeDebugPrivilege	3532	firefox.exe
Token: SeDebugPrivilege	3532	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3532	firefox.exe
3532	firefox.exe
3532	firefox.exe
3532	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3532	firefox.exe
3532	firefox.exe
3532	firefox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3532	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 2764 wrote to memory of 3532	2764	firefox.exe	66
PID 3532 wrote to memory of 4772	3532	firefox.exe	68
PID 3532 wrote to memory of 4772	3532	firefox.exe	68
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 3844	3532	firefox.exe	70
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71
PID 3532 wrote to memory of 4876	3532	firefox.exe	71

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" https://bcipaint-my.sharepoint.com:443/:o:/p/daryl/EgwqFrBaCtVHmaN_whNn7e0Bsj7VY_4mNkPImPSAdXW15Q?e=5%3aelubY4&at=9
1⤵
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" https://bcipaint-my.sharepoint.com:443/:o:/p/daryl/EgwqFrBaCtVHmaN_whNn7e0Bsj7VY_4mNkPImPSAdXW15Q?e=5%3aelubY4&at=9
  2⤵
  - Checks processor information in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3532.0.392523503\1352427253" -parentBuildID 20200403170909 -prefsHandle 1528 -prefMapHandle 1520 -prefsLen 1 -prefMapSize 220115 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3532 "\\.\pipe\gecko-crash-server-pipe.3532" 1624 gpu
    3⤵
    PID:4772
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3532.3.1189226566\839939474" -childID 1 -isForBrowser -prefsHandle 2196 -prefMapHandle 2192 -prefsLen 156 -prefMapSize 220115 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3532 "\\.\pipe\gecko-crash-server-pipe.3532" 2200 tab
    3⤵
    PID:3844
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3532.13.703356084\1711582860" -childID 2 -isForBrowser -prefsHandle 3392 -prefMapHandle 3388 -prefsLen 6938 -prefMapSize 220115 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3532 "\\.\pipe\gecko-crash-server-pipe.3532" 3404 tab
    3⤵
    PID:4876

Network

MITRE ATT&CK Enterprise v6

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

\??\pipe\chrome.3532.10.193236939

Filesize
488B

MD5
ecb0599c7718f45273546e14de52937d

SHA1
4d9138c0fed4b14010c3276212e121707c233236

SHA256
5179a31053c00959a5094a9fdb9ce36d9aee38e8e795a90617df9b8b68cd3a6b

SHA512
12f1acc3ff563b572eb518289b44cff12640e2f8afaca7092ccb37a1a081bd8d789def7d03fa7fdc4412b280a5614e58d2a6a127de5258ae5206ac2db701785c

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