meduza | 70f06035e9cc9a891f2959b80e3be9bea2ba07b72bce4fac125249c29c0d9d1c

Analysis

max time kernel
41s
max time network
37s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2024 16:23

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General

Target

Mega.nz Spreader.exe
Size

8.5MB
MD5

56b45c6edd70b8d85df6399eea6d24d1
SHA1

15a65e88ec6dc89e35fef0c5e786ac255d6d4a6e
SHA256

70f06035e9cc9a891f2959b80e3be9bea2ba07b72bce4fac125249c29c0d9d1c
SHA512

55275a2511cbd72ce38732ae9d677b753bf813949338182fe2ecdaf026e7438e219bf287ee88805100ed8768377f63009c4b1655fd5de14c5db41501c16b96cc
SSDEEP

196608:P0akhW+OUggVe3hwHqxogDycV3B7+JULH9XO8WIu:P06+FZKxoM33YURc1

Score

10^/10

meduza discovery pyinstaller stealer

Malware Config

Signatures

Meduza
Meduza is a crypto wallet and info stealer written in C++.
stealer meduza

Meduza Stealer payload 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\api.exe	family_meduza

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Mega.nz Spreader.exeapi.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-113082768-653872390-2867000172-1000\Control Panel\International\Geo\Nation	Mega.nz Spreader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-113082768-653872390-2867000172-1000\Control Panel\International\Geo\Nation	api.exe

Executes dropped EXE 5 IoCs

Processes:

leaf.exeapi.exelib.exelib.exeleaf.exe

pid process

3216 leaf.exe
3852 api.exe
4288 lib.exe
5056 lib.exe
4984 leaf.exe
Loads dropped DLL 6 IoCs

Processes:

lib.exe

pid process

5056 lib.exe
5056 lib.exe
5056 lib.exe
5056 lib.exe
5056 lib.exe
5056 lib.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

leaf.exe

description pid process target process

PID 3216 set thread context of 4984 3216 leaf.exe leaf.exe

pid	process
3216	leaf.exe
3852	api.exe
4288	lib.exe
5056	lib.exe
4984	leaf.exe

pid	process
5056	lib.exe
5056	lib.exe
5056	lib.exe
5056	lib.exe
5056	lib.exe
5056	lib.exe

description	pid	process	target process
PID 3216 set thread context of 4984	3216	leaf.exe	leaf.exe

Detects Pyinstaller 1 IoCs

pyinstaller

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\lib.exe	pyinstaller

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 6 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

Processes:

api.exeleaf.execmd.exeschtasks.exeMega.nz Spreader.exeleaf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	api.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	leaf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mega.nz Spreader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	leaf.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

1980 schtasks.exe

pid	process
1980	schtasks.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Mega.nz Spreader.exelib.exeleaf.exeleaf.execmd.exe

description	pid	process	target process
PID 4524 wrote to memory of 3216	4524	Mega.nz Spreader.exe	leaf.exe
PID 4524 wrote to memory of 3216	4524	Mega.nz Spreader.exe	leaf.exe
PID 4524 wrote to memory of 3216	4524	Mega.nz Spreader.exe	leaf.exe
PID 4524 wrote to memory of 3852	4524	Mega.nz Spreader.exe	api.exe
PID 4524 wrote to memory of 3852	4524	Mega.nz Spreader.exe	api.exe
PID 4524 wrote to memory of 3852	4524	Mega.nz Spreader.exe	api.exe
PID 4524 wrote to memory of 4288	4524	Mega.nz Spreader.exe	lib.exe
PID 4524 wrote to memory of 4288	4524	Mega.nz Spreader.exe	lib.exe
PID 4288 wrote to memory of 5056	4288	lib.exe	lib.exe
PID 4288 wrote to memory of 5056	4288	lib.exe	lib.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 3216 wrote to memory of 4984	3216	leaf.exe	leaf.exe
PID 4984 wrote to memory of 1780	4984	leaf.exe	cmd.exe
PID 4984 wrote to memory of 1780	4984	leaf.exe	cmd.exe
PID 4984 wrote to memory of 1780	4984	leaf.exe	cmd.exe
PID 1780 wrote to memory of 1980	1780	cmd.exe	schtasks.exe
PID 1780 wrote to memory of 1980	1780	cmd.exe	schtasks.exe
PID 1780 wrote to memory of 1980	1780	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Mega.nz Spreader.exe
"C:\Users\Admin\AppData\Local\Temp\Mega.nz Spreader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Users\Admin\AppData\Local\Temp\leaf.exe
  "C:\Users\Admin\AppData\Local\Temp\leaf.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3216
- - C:\Users\Admin\AppData\Local\Temp\leaf.exe
    "{path}"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4984
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /tn \eOzNUSwmQA /tr "C:\Users\Admin\AppData\Roaming\eOzNUSwmQA\svcupdater.exe" /st 00:00 /du 9999:59 /sc once /ri 1 /f
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1780
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn \eOzNUSwmQA /tr "C:\Users\Admin\AppData\Roaming\eOzNUSwmQA\svcupdater.exe" /st 00:00 /du 9999:59 /sc once /ri 1 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1980
- C:\Users\Admin\AppData\Local\Temp\api.exe
  "C:\Users\Admin\AppData\Local\Temp\api.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3852
- C:\Users\Admin\AppData\Local\Temp\lib.exe
  "C:\Users\Admin\AppData\Local\Temp\lib.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Users\Admin\AppData\Local\Temp\lib.exe
    "C:\Users\Admin\AppData\Local\Temp\lib.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:5056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\leaf.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42882\VCRUNTIME140.dll

Filesize
106KB

MD5
4585a96cc4eef6aafd5e27ea09147dc6

SHA1
489cfff1b19abbec98fda26ac8958005e88dd0cb

SHA256
a8f950b4357ec12cfccddc9094cca56a3d5244b95e09ea6e9a746489f2d58736

SHA512
d78260c66331fe3029d2cc1b41a5d002ec651f2e3bbf55076d65839b5e3c6297955afd4d9ab8951fbdc9f929dbc65eb18b14b59bce1f2994318564eb4920f286

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42882\_ctypes.pyd

Filesize
120KB

MD5
9b344f8d7ce5b57e397a475847cc5f66

SHA1
aff1ccc2608da022ecc8d0aba65d304fe74cdf71

SHA256
b1214d7b7efd9d4b0f465ec3463512a1cbc5f59686267030f072e6ce4b2a95cf

SHA512
2b0d9e1b550bf108fa842324ab26555f2a224aefff517fdb16df85693e05adaf0d77ebe49382848f1ec68dc9b5ae75027a62c33721e42a1566274d1a2b1baa41

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42882\_socket.pyd

Filesize
77KB

MD5
26dd19a1f5285712068b9e41808e8fa0

SHA1
90c9a112dd34d45256b4f2ed38c1cbbc9f24dba5

SHA256
eaabf6b78840daeaf96b5bdbf06adf0e4e2994dfeee5c5e27fefd824dbda5220

SHA512
173e1eda05d297d7da2193e8566201f05428437adcac80aecefe80f82d46295b15ce10990b5c080325dc59a432a587eef84a15ec688a62b82493ad501a1e4520

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42882\base_library.zip

Filesize
1.7MB

MD5
ebb4f1a115f0692698b5640869f30853

SHA1
9ba77340a6a32af08899e7f3c97841724dd78c3f

SHA256
4ab0deb6a298d14a0f50d55dc6ce5673b6c5320817ec255acf282191642a4576

SHA512
3f6ba7d86c9f292344f4ad196f4ae863bf936578dd7cfac7dc4aaf05c2c78e68d5f813c4ed36048b6678451f1717deeb77493d8557ee6778c6a70beb5294d21a

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42882\libffi-8.dll

Filesize
38KB

MD5
0f8e4992ca92baaf54cc0b43aaccce21

SHA1
c7300975df267b1d6adcbac0ac93fd7b1ab49bd2

SHA256
eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a

SHA512
6e1b223462dc124279bfca74fd2c66fe18b368ffbca540c84e82e0f5bcbea0e10cc243975574fa95ace437b9d8b03a446ed5ee0c9b1b094147cefaf704dfe978

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42882\python311.dll

Filesize
5.5MB

MD5
e2bd5ae53427f193b42d64b8e9bf1943

SHA1
7c317aad8e2b24c08d3b8b3fba16dd537411727f

SHA256
c4844b05e3a936b130adedb854d3c04d49ee54edb43e9d36f8c4ae94ccb78400

SHA512
ae23a6707e539c619fd5c5b4fc6e4734edc91f89ebe024d25ff2a70168da6105ac0bd47cf6bf3715af6411963caf0acbb4632464e1619ca6361abf53adfe7036

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI42882\select.pyd

Filesize
29KB

MD5
756c95d4d9b7820b00a3099faf3f4f51

SHA1
893954a45c75fb45fe8048a804990ca33f7c072d

SHA256
13e4d9a734a453a3613e11b6a518430099ad7e3d874ea407d1f9625b7f60268a

SHA512
0f54f0262cf8d71f00bf5666eb15541c6ecc5246cd298efd3b7dd39cdd29553a8242d204c42cfb28c537c3d61580153200373c34a94769f102b3baa288f6c398

Download Submit
C:\Users\Admin\AppData\Local\Temp\api.exe

Filesize
677KB

MD5
9022192413dda223b6e8afd73a22cfaa

SHA1
dbfc6d6667fcc47daa13a317c8791a93f5e495b0

SHA256
f575eb5246b5c6b9044ea04610528c040c982904a5fb3dc1909ce2f0ec15c9ef

SHA512
d5311ba2138f184b44b73e63067e5446a77640bfe9f75c87e81935e120ee3ca1918ad3d36ebcf24ebadff0d9afec10ab1d3276d4b20d9821466ba8183c80b7ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\leaf.exe

Filesize
630KB

MD5
8c8c3bcf475b5c95673a810b10a2fc52

SHA1
268cb3a6a4194efb14c1bdc82cfab3485c64fa73

SHA256
7f02583173f6e150677af6fe09226fa6b4fc9efa2523f393a89b31155a1122c0

SHA512
f1948ce32f46a34e425d2f59f5c4e6de56cbc1e29ecfd706c95f4b00ec2831ccc21a44b81cd18d8d03fe6681463276cd4c8d31b19bff712574b1ff765bb4e846

Download Submit
C:\Users\Admin\AppData\Local\Temp\lib.exe

Filesize
7.3MB

MD5
d1540618704ecaca1a503b496ed7b801

SHA1
047c0e7c3b0d03470177dfe17053fdb34ea378a4

SHA256
1c864d2dec413df7d389bf89cc5b0f38c879a93c043a22c98570c1eea12099aa

SHA512
8c91198512c946d1d0aa5583b8eaf96f111091e75ea26a853597b2791d44965e8005fc8e19267ce4cb7180b715968832d15af987dae7b6aaa1eef6b459f043b9

Download Submit
memory/3216-40-0x0000000005F80000-0x0000000006524000-memory.dmp

Filesize
5.6MB

Download
memory/3216-78-0x00000000031D0000-0x00000000031E4000-memory.dmp

Filesize
80KB

Download
memory/3216-47-0x0000000005B50000-0x0000000005BA6000-memory.dmp

Filesize
344KB

Download
memory/3216-46-0x00000000058D0000-0x00000000058DA000-memory.dmp

Filesize
40KB

Download
memory/3216-45-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/3216-27-0x0000000000DA0000-0x0000000000E44000-memory.dmp

Filesize
656KB

Download
memory/3216-28-0x00000000057D0000-0x000000000586C000-memory.dmp

Filesize
624KB

Download
memory/3216-53-0x0000000073760000-0x0000000073F10000-memory.dmp

Filesize
7.7MB

Download
memory/3216-79-0x000000007376E000-0x000000007376F000-memory.dmp

Filesize
4KB

Download
memory/3216-80-0x0000000073760000-0x0000000073F10000-memory.dmp

Filesize
7.7MB

Download
memory/3216-81-0x0000000007100000-0x0000000007160000-memory.dmp

Filesize
384KB

Download
memory/3216-82-0x0000000005CF0000-0x0000000005CF8000-memory.dmp

Filesize
32KB

Download
memory/3216-25-0x000000007376E000-0x000000007376F000-memory.dmp

Filesize
4KB

Download
memory/3216-87-0x0000000073760000-0x0000000073F10000-memory.dmp

Filesize
7.7MB

Download
memory/4984-83-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download