discordrat | hxxps://shorturl[.]at/us7lS

Analysis

max time kernel
67s
max time network
69s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
03-06-2024 20:50

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General

Target

https://shorturl.at/us7lS

Score

10^/10

discordrat persistence rat rootkit stealer

Malware Config

Signatures

Discord RAT
A RAT written in C# using Discord as a C2.
stealer rootkit rat persistence discordrat

Executes dropped EXE 3 IoCs

pid	Process
2556	Discord rat.exe
2348	builder.exe
3124	Client-built.exe

Loads dropped DLL 2 IoCs

pid	Process
2348	builder.exe
2348	builder.exe

Checks processor information in registry 2 TTPs 6 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\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\VendorIdentifier	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\ProcessorNameString	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings	firefox.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\Downloads\release.zip:Zone.Identifier	firefox.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	firefox.exe
Token: SeDebugPrivilege	2316	firefox.exe
Token: SeDebugPrivilege	2316	firefox.exe
Token: SeRestorePrivilege	4464	7zG.exe
Token: 35	4464	7zG.exe
Token: SeSecurityPrivilege	4464	7zG.exe
Token: SeSecurityPrivilege	4464	7zG.exe
Token: SeDebugPrivilege	2556	Discord rat.exe
Token: SeDebugPrivilege	3124	Client-built.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
2316	firefox.exe
2316	firefox.exe
2316	firefox.exe
2316	firefox.exe
4464	7zG.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2316	firefox.exe
2316	firefox.exe
2316	firefox.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2316	firefox.exe
2316	firefox.exe
2316	firefox.exe
2316	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2008 wrote to memory of 2316	2008	firefox.exe	78
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 4064	2316	firefox.exe	79
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80
PID 2316 wrote to memory of 3644	2316	firefox.exe	80

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://shorturl.at/us7lS"
1⤵
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://shorturl.at/us7lS
  2⤵
  - Checks processor information in registry
  - Modifies registry class
  - NTFS ADS
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.0.1888269553\239651528" -parentBuildID 20230214051806 -prefsHandle 1740 -prefMapHandle 1732 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {0c1d65d5-75f9-40f9-92c1-8a8fe251c062} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 1832 2467ac0b958 gpu
    3⤵
    PID:4064
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.1.1494917607\1643861216" -parentBuildID 20230214051806 -prefsHandle 2348 -prefMapHandle 2336 -prefsLen 22925 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {8a8318fa-db9d-4efc-8613-0f28ce4848c6} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 2376 2466e086b58 socket
    3⤵
    PID:3644
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.2.1557989565\2114495583" -childID 1 -isForBrowser -prefsHandle 3232 -prefMapHandle 3240 -prefsLen 22963 -prefMapSize 235121 -jsInitHandle 1364 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {b33a1e98-6f39-4b9e-8216-290f000f7ccd} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 3236 2467dd2bb58 tab
    3⤵
    PID:2200
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.3.511991495\709457882" -childID 2 -isForBrowser -prefsHandle 3408 -prefMapHandle 3424 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1364 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {e49c735a-b4fb-4ce2-bbdf-dcff8ed2bcf3} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 3400 2466e076e58 tab
    3⤵
    PID:4188
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.4.2054886368\1808533223" -childID 3 -isForBrowser -prefsHandle 5228 -prefMapHandle 5212 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1364 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {eed1246d-ab06-4b7e-a16a-66a864f59cca} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 5184 24682149858 tab
    3⤵
    PID:1440
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.5.1536926321\51918635" -childID 4 -isForBrowser -prefsHandle 3136 -prefMapHandle 3008 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1364 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {40b2fc06-53bf-4ad2-baa4-d4df17d1d0f9} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 3092 2468362e858 tab
    3⤵
    PID:4048
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.6.1244569555\1376185794" -childID 5 -isForBrowser -prefsHandle 5588 -prefMapHandle 5592 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1364 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {5fe723aa-333e-447d-9172-5ca86f6c8fe7} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 5580 2468362bb58 tab
    3⤵
    PID:2228
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2316.7.1611172782\1597628075" -childID 6 -isForBrowser -prefsHandle 5772 -prefMapHandle 5776 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1364 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ac976937-4846-442e-93bc-b8f5ff3746de} 2316 "\\.\pipe\gecko-crash-server-pipe.2316" 4812 2468362eb58 tab
    3⤵
    PID:5056

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1108

C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\release\" -ad -an -ai#7zMap24022:76:7zEvent17155
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4464

C:\Users\Admin\Downloads\release\Release\Discord rat.exe
"C:\Users\Admin\Downloads\release\Release\Discord rat.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2556

C:\Users\Admin\Downloads\release\builder.exe
"C:\Users\Admin\Downloads\release\builder.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2348

C:\Users\Admin\Downloads\release\Client-built.exe
"C:\Users\Admin\Downloads\release\Client-built.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3124

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\dpu1uz4v.default-release\activity-stream.discovery_stream.json.tmp

Filesize
23KB

MD5
3dd04d7050d1d8718cd5afe93d1bc0c3

SHA1
d4a47999f055d51be69d6a8008134f40f3e536ce

SHA256
3d7786d244aab54df6e49ce31ccf7f27adb79749a87feec784cb175b214a5781

SHA512
17fca4b9ed0bb3a4069a3e721072ff81629018232e027df2dd98a1947ec0d5929ccf0bfd3bbdf4137ad48f590d31dee80b8d191c145e6c2e2dfe118d7e5070c8

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\dpu1uz4v.default-release\prefs-1.js

Filesize
7KB

MD5
1e42d8674e7e825c361113e24f55a016

SHA1
4576244a37aa5f63f7aae2125d13c066c94c6ee7

SHA256
29a9f314ebfdafe1bb3dae9fcab7e4c1874fe7cc8c3a11887a6069f428206efb

SHA512
74b8cadfd6ac4832fc5483b34dc98ca09a044890732504870e58bf678d7ef21caf3cc77a01585f86042fa53199f2bc1e357fcd1a2d2a57abd987b86dcf1f2567

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\dpu1uz4v.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
3KB

MD5
6d303b675eed5732ffee6cc830d6d197

SHA1
9c63809251314859cd66afb73f371fa2921b3b4a

SHA256
299090e64b91c0808aa5d2230107f27355c21216f711f95781b7f9f53b4cd95d

SHA512
3381b6226af85264295460a82752d4614952017c39c6588741e878285ec08d12442eb7b0aa29a9b1d2c5fa3a65d805534c451fa684a133c82dbc3477643cd1a5

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\dpu1uz4v.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
3KB

MD5
e3b3f822bab6d44e9bf4afa82e26d0bd

SHA1
2beb91ec4076bb5e5e5c7edb90759669fb770f66

SHA256
8ae54bf6d6edbb21592d8444f4214fc3f92819de8546b0099feb1967c81a3604

SHA512
be1a98059e21c0a048b5878d0ad13a502e8512cb3e8ccab22b0d9f68710f54b88d7b7bece18823ba6a93556cd775f3bf29a9e0c850f37000d8ed483fdb287d2e

Download Submit
C:\Users\Admin\Downloads\release.oRSdGBeC.zip.part

Filesize
196KB

MD5
d678cd12dbebff98f3ec7fda0a384f28

SHA1
4fc2ebf50f156c8c8c979b80de501299eabe3386

SHA256
68e60c074e827632e78c8644f0b86000279163b44213cc7a3245f1e200b9f120

SHA512
edb00e32a1ac8e1b451c2425d5b323776cc2f6b2e8446e07e2621972bf23d86d49cccae746528d86ac5c4aecac36d7af565cea29af712a9206064f84e08ed50d

Download Submit
C:\Users\Admin\Downloads\release.zip

Filesize
445KB

MD5
06a4fcd5eb3a39d7f50a0709de9900db

SHA1
50d089e915f69313a5187569cda4e6dec2d55ca7

SHA256
c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97

SHA512
75e5f637fd3282d088b1c0c1efd0de8a128f681e4ac66d6303d205471fe68b4fbf0356a21d803aff2cca6def455abad8619fedc8c7d51e574640eda0df561f9b

Download Submit
C:\Users\Admin\Downloads\release\Client-built.exe

Filesize
78KB

MD5
5fa78b19ae158350ead3ef50feb6a7a2

SHA1
57d57ca525968fd9d5a9ee38e783e288896caa01

SHA256
1d4914ee768fbaf1b82a860ace972a01338c12a05ff7dbdde42bfab43b21a4d5

SHA512
c0d0803b5ceaa4c3013132ead8d8a95faae4a01933c41cb4c998572c2a31c971faab5bb2c488aee8d73a16a0037a78e09130e1ecd2804c40f0665399c404c00e

Download Submit
C:\Users\Admin\Downloads\release\Release\Discord rat.exe

Filesize
79KB

MD5
d13905e018eb965ded2e28ba0ab257b5

SHA1
6d7fe69566fddc69b33d698591c9a2c70d834858

SHA256
2bd631c6665656673a923c13359b0dc211debc05b2885127e26b0dce808e2dec

SHA512
b95bfdebef33ac72b6c21cdf0abb4961222b7efd17267cd7236e731dd0b6105ece28e784a95455f1ffc8a6dd1d580a467b07b3bd8cb2fb19e2111f1a864c97cb

Download Submit
C:\Users\Admin\Downloads\release\builder.exe

Filesize
10KB

MD5
4f04f0e1ff050abf6f1696be1e8bb039

SHA1
bebf3088fff4595bfb53aea6af11741946bbd9ce

SHA256
ded51c306ee7e59fa15c42798c80f988f6310ea77ab77de3d12dc01233757cfa

SHA512
94713824b81de323e368fde18679ef8b8f2883378bffd2b7bd2b4e4bd5d48b35c6e71c9f8e9b058ba497db1bd0781807e5b7cecfd540dad611da0986c72b9f12

Download Submit
C:\Users\Admin\Downloads\release\dnlib.dll

Filesize
1.1MB

MD5
508ccde8bc7003696f32af7054ca3d97

SHA1
1f6a0303c5ae5dc95853ec92fd8b979683c3f356

SHA256
4758c7c39522e17bf93b3993ada4a1f7dd42bb63331bac0dcd729885e1ba062a

SHA512
92a59a2e1f6bf0ce512d21cf4148fe027b3a98ed6da46925169a4d0d9835a7a4b1374ba0be84e576d9a8d4e45cb9c2336e1f5bd1ea53e39f0d8553db264e746d

Download Submit
memory/2348-233-0x0000000005090000-0x0000000005122000-memory.dmp

Filesize
584KB

Download
memory/2348-231-0x0000000000690000-0x0000000000698000-memory.dmp

Filesize
32KB

Download
memory/2348-232-0x0000000005640000-0x0000000005BE6000-memory.dmp

Filesize
5.6MB

Download
memory/2348-234-0x0000000005010000-0x000000000501A000-memory.dmp

Filesize
40KB

Download
memory/2348-242-0x0000000006640000-0x0000000006762000-memory.dmp

Filesize
1.1MB

Download
memory/2556-228-0x000001F0F4B50000-0x000001F0F5078000-memory.dmp

Filesize
5.2MB

Download
memory/2556-227-0x00007FFED8AC0000-0x00007FFED9582000-memory.dmp

Filesize
10.8MB

Download
memory/2556-226-0x000001F0F4300000-0x000001F0F44C2000-memory.dmp

Filesize
1.8MB

Download
memory/2556-225-0x000001F0F1C80000-0x000001F0F1C98000-memory.dmp

Filesize
96KB

Download
memory/2556-224-0x00007FFED8AC3000-0x00007FFED8AC5000-memory.dmp

Filesize
8KB

Download
memory/2556-259-0x00007FFED8AC3000-0x00007FFED8AC5000-memory.dmp

Filesize
8KB

Download
memory/2556-260-0x00007FFED8AC0000-0x00007FFED9582000-memory.dmp

Filesize
10.8MB

Download
memory/3124-258-0x000001CCAA6F0000-0x000001CCAA708000-memory.dmp

Filesize
96KB

Download