hxxps://substack[.]net/tv/

Analysis

max time kernel
53s
max time network
22s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
22/11/2023, 14:12

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General

Target

https://substack.net/tv/

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2620	firefox.exe
Token: SeDebugPrivilege	2620	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2620	firefox.exe
2620	firefox.exe
2620	firefox.exe
2620	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2620	firefox.exe
2620	firefox.exe
2620	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2604 wrote to memory of 2620	2604	firefox.exe	28
PID 2620 wrote to memory of 2328	2620	firefox.exe	29
PID 2620 wrote to memory of 2328	2620	firefox.exe	29
PID 2620 wrote to memory of 2328	2620	firefox.exe	29
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2624	2620	firefox.exe	30
PID 2620 wrote to memory of 2608	2620	firefox.exe	31
PID 2620 wrote to memory of 2608	2620	firefox.exe	31
PID 2620 wrote to memory of 2608	2620	firefox.exe	31
PID 2620 wrote to memory of 2608	2620	firefox.exe	31
PID 2620 wrote to memory of 2608	2620	firefox.exe	31

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "https://substack.net/tv/"
1⤵
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://substack.net/tv/
  2⤵
  - Checks processor information in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2620.0.827203809\764015012" -parentBuildID 20221007134813 -prefsHandle 1244 -prefMapHandle 1236 -prefsLen 20938 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {c43e20a0-73a0-47dd-9d55-23a0e285e33a} 2620 "\\.\pipe\gecko-crash-server-pipe.2620" 1308 120f4158 gpu
    3⤵
    PID:2328
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2620.1.565707011\1549476307" -parentBuildID 20221007134813 -prefsHandle 1512 -prefMapHandle 1508 -prefsLen 21799 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {3ae1bc7a-8b90-4e7b-b68d-52887ebc59d7} 2620 "\\.\pipe\gecko-crash-server-pipe.2620" 1524 e71058 socket
    3⤵
    PID:2624
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2620.2.1265183290\2059908448" -childID 1 -isForBrowser -prefsHandle 2228 -prefMapHandle 2224 -prefsLen 21837 -prefMapSize 232675 -jsInitHandle 864 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {2549481a-6079-4093-9a2a-f6d4cc08ce7f} 2620 "\\.\pipe\gecko-crash-server-pipe.2620" 2240 197a2858 tab
    3⤵
    PID:2608
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2620.3.775382422\632692287" -childID 2 -isForBrowser -prefsHandle 2888 -prefMapHandle 2884 -prefsLen 26482 -prefMapSize 232675 -jsInitHandle 864 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {250ec068-6a0e-4d71-9446-fae57423425c} 2620 "\\.\pipe\gecko-crash-server-pipe.2620" 2900 1c658558 tab
    3⤵
    PID:1368
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2620.4.390593907\1901109944" -childID 3 -isForBrowser -prefsHandle 3744 -prefMapHandle 3740 -prefsLen 26541 -prefMapSize 232675 -jsInitHandle 864 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {de2c21bd-8b40-472d-8bf4-a077d4ded63c} 2620 "\\.\pipe\gecko-crash-server-pipe.2620" 3756 14581158 tab
    3⤵
    PID:1812
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2620.5.1892905136\1952972693" -childID 4 -isForBrowser -prefsHandle 3860 -prefMapHandle 3864 -prefsLen 26541 -prefMapSize 232675 -jsInitHandle 864 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {0d22a22a-7e99-4d08-96c6-29fe0b941442} 2620 "\\.\pipe\gecko-crash-server-pipe.2620" 3848 1e5a0c58 tab
    3⤵
    PID:692
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2620.6.578569545\331339207" -childID 5 -isForBrowser -prefsHandle 4020 -prefMapHandle 4024 -prefsLen 26541 -prefMapSize 232675 -jsInitHandle 864 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {a6288a5f-52a0-4271-9174-01dbccc7e967} 2620 "\\.\pipe\gecko-crash-server-pipe.2620" 4008 203d1b58 tab
    3⤵
    PID:1692

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\Mozilla\Firefox\Profiles\jkbp0wxn.default-release\activity-stream.discovery_stream.json.tmp

Filesize
22KB

MD5
62dce0527e908912947c1c51b92584ee

SHA1
294c4c88d4a7c4897e407a7ac418230103127377

SHA256
037cca18fac7115c666c492c70ee4e64dfd4194a88c8c16f45faa5d9f348f391

SHA512
1b04b9a59ec4e8e574db5324d5c6ee70c33a0bbbb1b987929171564d32dc091a4ec3197678dc1dfeedf400b9f903720b1309aa8363ccc80d01b1a082efd54e9a

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jkbp0wxn.default-release\prefs-1.js

Filesize
6KB

MD5
6203c348d6a942015a6ae29ecbe6fbf6

SHA1
42116d1303625f442c3547de9d3f478176d0c52a

SHA256
67d985bcab3024ed3731ff9ad822e26726af31e267ee521a45ca9263999404fb

SHA512
21545bb0ff991db023b71ef8135f231451648a397b1ed3fe62da729c535905a4cede27cce55bdf0781783f9588a59fbd1a42a0b59cefb98c3ddaf1ac21bc2d6c

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jkbp0wxn.default-release\prefs-1.js

Filesize
7KB

MD5
10f3e2b918c4346a75acfb536b6f4467

SHA1
cd78951e62599066eeb98f91efc3f5477265eb81

SHA256
383c9c862ddbb69d9a50c3c80a8d32c2de35eba3620ae1e2fe4bf2ca5b31ff4b

SHA512
a779994968e6ff76761d31fd5ff31b4f3414b442a7f9258570d688a4e47ac097847b90ee472fa0a3e62639dbc3004591109840d44b15893fe9e6de41c3e883e8

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jkbp0wxn.default-release\prefs.js

Filesize
6KB

MD5
983e6e665f66a56735a0f5f782d19ae9

SHA1
b0cc1371ba2ca64b046827512e5f8699a4d041b8

SHA256
96a6310d24566584cb4e60a04cb58e5cb6fcb393a9e66b844f4392ad4b0ed9b8

SHA512
a71963eb3f8f9d1b6ddcf297923487c94acec7d104226f487faf4f0a3819c1626808861dc47cf9d12394f206bbdfefc720071d521baf3b8ab29feae6c364c022

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jkbp0wxn.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
47KB

MD5
8ed7ce811cd65360f5e7c62c1e2e2193

SHA1
9a2cb879f8a94c2c9019406a7cbd77f330e07b2e

SHA256
0014277074c50f2f2e2e9a615a541ea9d9016d03eff4733e300e255cf5a690f8

SHA512
18de7cbe64341747f8a4d5d963d2980353fd30d510aa9868b332659d68b0087555f7b1f636641e72494fd2ce2f72cb17c0a9e52d9d4b2713ae54bb5a35876f52

Download Submit