344700d3141170111a9b77db100f6961cc54a2988d964d34f7e1ca57aa42aa2a

General

Target

WaveInstaller.exe
Size

1.5MB
MD5

c822ab5332b11c9185765b157d0b6e17
SHA1

7fe909d73a24ddd87171896079cceb8b03663ad4
SHA256

344700d3141170111a9b77db100f6961cc54a2988d964d34f7e1ca57aa42aa2a
SHA512

a8612836fb4714b939d03f7fe08391bbc635ca83ab853fc677159e5db6b00f76b9b586bdae9c19d2406d9a2713d1caf614132cb6c14e1dddc6ac45e47f7e5a5d
SSDEEP

24576:9viinbT3ipyqwPx4x3RyFoBkkAd04wJAAh/jV1gJcPNZI6fntX3HOt2pbs81ind2:EinbT3ipTD0anywJAaD/3U2pb7indT

Score

8^/10

Malware Config

Signatures

Downloads MZ/PE file

Checks computer location settings 2 TTPs 5 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	WaveInstaller.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	WaveBootstrapper.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	WaveWindows.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	WaveBootstrapper.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	Bloxstrap.exe

Executes dropped EXE 6 IoCs

pid	Process
2336	WaveBootstrapper.exe
5104	WaveBootstrapper.exe
2332	WaveWindows.exe
4324	node.exe
4912	WaveWindows.exe
3464	Bloxstrap.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-1-5-21-47134698-4092160662-1261813102-1000\Software\KasperskyLab	WaveWindows.exe
Key created	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Software\KasperskyLab	WaveWindows.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\SOFTWARE\KasperskyLab\LastUsername	WaveWindows.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\SOFTWARE\KasperskyLab\Session	WaveWindows.exe

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

Web Service

T1102

flow	ioc
48	raw.githubusercontent.com
49	raw.githubusercontent.com
65	raw.githubusercontent.com
66	raw.githubusercontent.com
67	raw.githubusercontent.com
68	raw.githubusercontent.com

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3988	4912	WerFault.exe	97

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2332	WaveWindows.exe
2332	WaveWindows.exe
4912	WaveWindows.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	5056	WaveInstaller.exe
Token: SeDebugPrivilege	2336	WaveBootstrapper.exe
Token: SeDebugPrivilege	5104	WaveBootstrapper.exe
Token: SeDebugPrivilege	2332	WaveWindows.exe
Token: SeDebugPrivilege	4912	WaveWindows.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3464	Bloxstrap.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3464	Bloxstrap.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 2336	5056	WaveInstaller.exe	91
PID 5056 wrote to memory of 2336	5056	WaveInstaller.exe	91
PID 5056 wrote to memory of 2336	5056	WaveInstaller.exe	91
PID 2336 wrote to memory of 2332	2336	WaveBootstrapper.exe	94
PID 2336 wrote to memory of 2332	2336	WaveBootstrapper.exe	94
PID 2336 wrote to memory of 2332	2336	WaveBootstrapper.exe	94
PID 2332 wrote to memory of 4324	2332	WaveWindows.exe	95
PID 2332 wrote to memory of 4324	2332	WaveWindows.exe	95
PID 5104 wrote to memory of 4912	5104	WaveBootstrapper.exe	97
PID 5104 wrote to memory of 4912	5104	WaveBootstrapper.exe	97
PID 5104 wrote to memory of 4912	5104	WaveBootstrapper.exe	97
PID 2332 wrote to memory of 3464	2332	WaveWindows.exe	101
PID 2332 wrote to memory of 3464	2332	WaveWindows.exe	101

C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe
"C:\Users\Admin\AppData\Local\Temp\WaveInstaller.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Users\Admin\AppData\Local\Wave\WaveBootstrapper.exe
  "C:\Users\Admin\AppData\Local\Wave\WaveBootstrapper.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Users\Admin\AppData\Local\Wave\WaveWindows.exe
    "C:\Users\Admin\AppData\Local\Wave\WaveWindows.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Checks for any installed AV software in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2332
  - - C:\Users\Admin\AppData\Local\Luau Language Server\node.exe
      "C:\Users\Admin\AppData\Local\Luau Language Server\node.exe" server --process-id=2332
      4⤵
      Executes dropped EXE
      PID:4324
  - - C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.exe
      "C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      PID:3464

C:\Users\Admin\AppData\Local\Wave\WaveBootstrapper.exe
"C:\Users\Admin\AppData\Local\Wave\WaveBootstrapper.exe"
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5104
- C:\Users\Admin\AppData\Local\Wave\WaveWindows.exe
  "C:\Users\Admin\AppData\Local\Wave\WaveWindows.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4912 -s 1768
    3⤵
    - Program crash
    PID:3988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4912 -ip 4912
1⤵
PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Software Discovery

1

T1518

Security Software Discovery

1

T1518.001

System Information Discovery

2

T1082

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\Microsoft\CLR_v4.0_32\UsageLogs\WaveBootstrapper.exe.log

Filesize
2KB

MD5
ebb67c89c3d4eb103fff16a4e76ea76e

SHA1
f9c7d4633305b971bd774e22c9b8885870c41b45

SHA256
4dea672914bb09196c2e33d23e412dfaf1411c9f699591950ce164e360ddd0e6

SHA512
822aa9517f78c240c118dd0381e0fe95c584317c5b3b06d093578c718e6436da41c3c47795bd513d1cfa90a7192e8c4e91b1b8a4dba0faf5d3b22e3f4b122bdd

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

Filesize
949KB

MD5
8fb51b92d496c6765f7ba44e6d4a8990

SHA1
d3e5a8465622cd5adae05babeb7e34b2b5c777d7

SHA256
ab49d6166a285b747e5f279620ab9cea12f33f7656d732aa75900fcb981a5394

SHA512
20de93a52fff7b092cb9d77bd26944abed5f5cb67146e6d2d70be6a431283b6de52eb37a0e13dc8bc57dcf8be2d5a95b9c11b3b030a3e2f03dd6e4efc23527a6

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

Filesize
8.0MB

MD5
b8631bbd78d3935042e47b672c19ccc3

SHA1
cd0ea137f1544a31d2a62aaed157486dce3ecebe

SHA256
9cfda541d595dc20a55df5422001dfb58debd401df3abff21b1eee8ede28451c

SHA512
0c51d6247e39f7851538a5916b24972e845abfe429f0abdc7b532f654b4afe73dc6e1936f1b062da63bfc90273d3cbc297bf6c802e615f3711d0f180c070aa26

Download Submit
memory/2332-270-0x00000000092B0000-0x00000000092D2000-memory.dmp

Filesize
136KB

Download
memory/2332-259-0x000000000A330000-0x000000000A3E2000-memory.dmp

Filesize
712KB

Download
memory/2332-271-0x000000000BD50000-0x000000000C0A4000-memory.dmp

Filesize
3.3MB

Download
memory/2332-254-0x0000000005C10000-0x0000000005C18000-memory.dmp

Filesize
32KB

Download
memory/2332-252-0x0000000005AA0000-0x0000000005B52000-memory.dmp

Filesize
712KB

Download
memory/2332-253-0x0000000005B50000-0x0000000005BF0000-memory.dmp

Filesize
640KB

Download
memory/2332-251-0x0000000000900000-0x0000000001102000-memory.dmp

Filesize
8.0MB

Download
memory/2336-241-0x0000000009590000-0x0000000009694000-memory.dmp

Filesize
1.0MB

Download
memory/2336-250-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/2336-236-0x0000000000E00000-0x0000000000EF2000-memory.dmp

Filesize
968KB

Download
memory/2336-237-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/2336-238-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/2336-242-0x000000000A2A0000-0x000000000A2B6000-memory.dmp

Filesize
88KB

Download
memory/2336-243-0x000000000A2E0000-0x000000000A2EA000-memory.dmp

Filesize
40KB

Download
memory/2336-244-0x000000000A320000-0x000000000A328000-memory.dmp

Filesize
32KB

Download
memory/2336-245-0x000000000A380000-0x000000000A39E000-memory.dmp

Filesize
120KB

Download
memory/4912-265-0x0000000006120000-0x0000000006196000-memory.dmp

Filesize
472KB

Download
memory/4912-263-0x0000000005DB0000-0x0000000005DE2000-memory.dmp

Filesize
200KB

Download
memory/4912-262-0x0000000005D00000-0x0000000005D76000-memory.dmp

Filesize
472KB

Download
memory/5056-19-0x000000000B670000-0x000000000B6E2000-memory.dmp

Filesize
456KB

Download
memory/5056-5-0x0000000009CD0000-0x0000000009D08000-memory.dmp

Filesize
224KB

Download
memory/5056-17-0x000000000B4B0000-0x000000000B4B8000-memory.dmp

Filesize
32KB

Download
memory/5056-16-0x000000000B460000-0x000000000B486000-memory.dmp

Filesize
152KB

Download
memory/5056-15-0x000000000C140000-0x000000000C1D6000-memory.dmp

Filesize
600KB

Download
memory/5056-8-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5056-7-0x000000007529E000-0x000000007529F000-memory.dmp

Filesize
4KB

Download
memory/5056-21-0x000000000B4E0000-0x000000000B4EA000-memory.dmp

Filesize
40KB

Download
memory/5056-20-0x000000000B4D0000-0x000000000B4DA000-memory.dmp

Filesize
40KB

Download
memory/5056-0-0x000000007529E000-0x000000007529F000-memory.dmp

Filesize
4KB

Download
memory/5056-240-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5056-6-0x0000000009CB0000-0x0000000009CBE000-memory.dmp

Filesize
56KB

Download
memory/5056-4-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5056-3-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5056-2-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5056-1-0x00000000008D0000-0x0000000000A62000-memory.dmp

Filesize
1.6MB

Download

Analysis

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