984dfc64c10f96c5350d6d9216a5d7abfece1658dfc93925f7a6b0c80817c886

General

Target

WaveInstaller.exe
Size

2.3MB
MD5

215d509bc217f7878270c161763b471e
SHA1

bfe0a2580d54cfa28d3ff5ef8dc754fdc73adcd9
SHA256

984dfc64c10f96c5350d6d9216a5d7abfece1658dfc93925f7a6b0c80817c886
SHA512

68e615dfcb1b7770ad64175438a913744c14bdd3af93b339c2b526271bdd0d23334e78d049fdae8ca9fe66672a8cf252ebf891be9ab6c46a3d8f1fb00fa8c83b
SSDEEP

49152:LinbT3qpTDQSmanAmwJAaDMg33U2pLOiniT:LinKpTJmWAmmAMP8in

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
4972	WaveBootstrapper.exe
648	WaveWindows.exe
5076	node.exe
240	Bloxstrap.exe

Loads dropped DLL 2 IoCs

pid	Process
4972	WaveBootstrapper.exe
648	WaveWindows.exe

Checks for any installed AV software in registry 1 TTPs 4 IoCs

Security Software Discovery

T1518.001

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2227988167-2813779459-4240799794-1000\Software\KasperskyLab	WaveWindows.exe
Key created	\REGISTRY\USER\S-1-5-21-2227988167-2813779459-4240799794-1000\Software\KasperskyLab	WaveWindows.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2227988167-2813779459-4240799794-1000\Software\KasperskyLab\LastUsername	WaveWindows.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2227988167-2813779459-4240799794-1000\Software\KasperskyLab\Session	WaveWindows.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
5	raw.githubusercontent.com
7	raw.githubusercontent.com
16	raw.githubusercontent.com
17	raw.githubusercontent.com
18	raw.githubusercontent.com
19	raw.githubusercontent.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaveInstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaveBootstrapper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaveWindows.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
648	WaveWindows.exe
648	WaveWindows.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3340	WaveInstaller.exe
Token: SeDebugPrivilege	4972	WaveBootstrapper.exe
Token: SeDebugPrivilege	648	WaveWindows.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3340 wrote to memory of 4972	3340	WaveInstaller.exe	80
PID 3340 wrote to memory of 4972	3340	WaveInstaller.exe	80
PID 3340 wrote to memory of 4972	3340	WaveInstaller.exe	80
PID 4972 wrote to memory of 648	4972	WaveBootstrapper.exe	81
PID 4972 wrote to memory of 648	4972	WaveBootstrapper.exe	81
PID 4972 wrote to memory of 648	4972	WaveBootstrapper.exe	81
PID 648 wrote to memory of 5076	648	WaveWindows.exe	82
PID 648 wrote to memory of 5076	648	WaveWindows.exe	82
PID 648 wrote to memory of 240	648	WaveWindows.exe	84
PID 648 wrote to memory of 240	648	WaveWindows.exe	84

C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe
"C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3340
- C:\Users\Admin\AppData\Local\Wave\WaveBootstrapper.exe
  "C:\Users\Admin\AppData\Local\Wave\WaveBootstrapper.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Users\Admin\AppData\Local\Wave\WaveWindows.exe
    "C:\Users\Admin\AppData\Local\Wave\WaveWindows.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks for any installed AV software in registry
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:648
  - - C:\Users\Admin\AppData\Local\Luau Language Server\node.exe
      "C:\Users\Admin\AppData\Local\Luau Language Server\node.exe" server --process-id=648
      4⤵
      Executes dropped EXE
      PID:5076
  - - C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.exe
      "C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.exe"
      4⤵
      Executes dropped EXE
      PID:240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Software Discovery

1

T1518

Security Software Discovery

1

T1518.001

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.dll

Filesize
4.3MB

MD5
6546ceb273f079342df5e828a60f551b

SHA1
ede41c27df51c39cd731797c340fcb8feda51ea3

SHA256
e440da74de73212d80da3f27661fcb9436d03d9e8dbbb44c9c148aaf38071ca5

SHA512
f0ea83bf836e93ff7b58582329a05ba183a25c92705fab36f576ec0c20cf687ce16a68e483698bda4215d441dec5916ffbdfa1763fb357e14ab5e0f1ffcaf824

Download Submit
C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.exe

Filesize
249KB

MD5
772c9fecbd0397f6cfb3d866cf3a5d7d

SHA1
6de3355d866d0627a756d0d4e29318e67650dacf

SHA256
2f88ea7e1183d320fb2b7483de2e860da13dc0c0caaf58f41a888528d78c809f

SHA512
82048bd6e50d38a863379a623b8cfda2d1553d8141923acf13f990c7245c833082523633eaa830362a12bfff300da61b3d8b3cccbe038ce2375fdfbd20dbca31

Download Submit
C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.runtimeconfig.json

Filesize
372B

MD5
d94cf983fba9ab1bb8a6cb3ad4a48f50

SHA1
04855d8b7a76b7ec74633043ef9986d4500ca63c

SHA256
1eca0f0c70070aa83bb609e4b749b26dcb4409784326032726394722224a098a

SHA512
09a9667d4f4622817116c8bc27d3d481d5d160380a2e19b8944bdd1271a83f718415ce5e6d66e82e36819e575ec1b55f19c45213e0013b877b8d61e6feb9d998

Download Submit
C:\Users\Admin\AppData\Local\Luau Language Server\server\index.js

Filesize
6.1MB

MD5
6b1cad741d0b6374435f7e1faa93b5e7

SHA1
7b1957e63c10f4422421245e4dc64074455fd62a

SHA256
6f17add2a8c8c2d9f592adb65d88e08558e25c15cedd82e3f013c8146b5d840f

SHA512
a662fc83536eff797b8d59e2fb4a2fb7cd903be8fc4137de8470b341312534326383bb3af58991628f15f93e3bdd57621622d9d9b634fb5e6e03d4aa06977253

Download Submit
C:\Users\Admin\AppData\Local\Wave\D3DCOMPILER_47.dll

Filesize
3.9MB

MD5
3b4647bcb9feb591c2c05d1a606ed988

SHA1
b42c59f96fb069fd49009dfd94550a7764e6c97c

SHA256
35773c397036b368c1e75d4e0d62c36d98139ebe74e42c1ff7be71c6b5a19fd7

SHA512
00cd443b36f53985212ac43b44f56c18bf70e25119bbf9c59d05e2358ff45254b957f1ec63fc70fb57b1726fd8f76ccfad8103c67454b817a4f183f9122e3f50

Download Submit
C:\Users\Admin\AppData\Local\Wave\WaveBootstrapper.exe

Filesize
949KB

MD5
495df8a4dee554179394b33daece4d1e

SHA1
0a67a0e43b4b4e3e25a736d08de4cec22033b696

SHA256
201263498c60fa595f394650c53a08d0b82850349123b97d41565e145ddf2f42

SHA512
ce3bef1038741f7a0f90cc131a4a1883fd84b006654024d591f5451e73166b4cae546e307c358b5b90aa0e6517bf7b6098f1f59a3ecc01598d4feb26e6b6af33

Download Submit
C:\Users\Admin\AppData\Local\Wave\WaveWindows.exe

Filesize
8.0MB

MD5
b8631bbd78d3935042e47b672c19ccc3

SHA1
cd0ea137f1544a31d2a62aaed157486dce3ecebe

SHA256
9cfda541d595dc20a55df5422001dfb58debd401df3abff21b1eee8ede28451c

SHA512
0c51d6247e39f7851538a5916b24972e845abfe429f0abdc7b532f654b4afe73dc6e1936f1b062da63bfc90273d3cbc297bf6c802e615f3711d0f180c070aa26

Download Submit
memory/648-259-0x00000000097E0000-0x0000000009892000-memory.dmp

Filesize
712KB

Download
memory/648-254-0x0000000005650000-0x0000000005658000-memory.dmp

Filesize
32KB

Download
memory/648-253-0x0000000005870000-0x0000000005910000-memory.dmp

Filesize
640KB

Download
memory/648-252-0x00000000057C0000-0x0000000005872000-memory.dmp

Filesize
712KB

Download
memory/648-251-0x00000000004E0000-0x0000000000CE2000-memory.dmp

Filesize
8.0MB

Download
memory/648-265-0x000000000AC60000-0x000000000AC82000-memory.dmp

Filesize
136KB

Download
memory/648-266-0x000000000B160000-0x000000000B4B7000-memory.dmp

Filesize
3.3MB

Download
memory/3340-238-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download
memory/3340-20-0x000000000A770000-0x000000000A77A000-memory.dmp

Filesize
40KB

Download
memory/3340-1-0x0000000000280000-0x00000000004CA000-memory.dmp

Filesize
2.3MB

Download
memory/3340-2-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download
memory/3340-0-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

Filesize
4KB

Download
memory/3340-3-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download
memory/3340-4-0x0000000009620000-0x0000000009658000-memory.dmp

Filesize
224KB

Download
memory/3340-15-0x000000000B520000-0x000000000B5B6000-memory.dmp

Filesize
600KB

Download
memory/3340-5-0x00000000095F0000-0x00000000095FE000-memory.dmp

Filesize
56KB

Download
memory/3340-6-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

Filesize
4KB

Download
memory/3340-7-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download
memory/3340-21-0x000000000A790000-0x000000000A79A000-memory.dmp

Filesize
40KB

Download
memory/3340-19-0x000000000B0A0000-0x000000000B112000-memory.dmp

Filesize
456KB

Download
memory/3340-8-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download
memory/3340-17-0x000000000A0D0000-0x000000000A0D8000-memory.dmp

Filesize
32KB

Download
memory/3340-16-0x000000000A9B0000-0x000000000A9D6000-memory.dmp

Filesize
152KB

Download
memory/4972-241-0x00000000094F0000-0x0000000009506000-memory.dmp

Filesize
88KB

Download
memory/4972-250-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download
memory/4972-244-0x00000000095D0000-0x00000000095EE000-memory.dmp

Filesize
120KB

Download
memory/4972-243-0x0000000009570000-0x0000000009578000-memory.dmp

Filesize
32KB

Download
memory/4972-242-0x0000000009530000-0x000000000953A000-memory.dmp

Filesize
40KB

Download
memory/4972-240-0x00000000086D0000-0x00000000087D4000-memory.dmp

Filesize
1.0MB

Download
memory/4972-239-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download
memory/4972-236-0x0000000000610000-0x0000000000702000-memory.dmp

Filesize
968KB

Download
memory/4972-235-0x0000000074FF0000-0x00000000757A1000-memory.dmp

Filesize
7.7MB

Download

Analysis

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