d6808dd1bea15672872c5228a9b2b4b2636f83f1e3fdb9448a42904ed5278440

Resubmissions

12/10/2024, 10:25

241012-mf821swbjf 10

12/10/2024, 10:24

12/10/2024, 10:23

12/10/2024, 10:21

12/10/2024, 10:18

Analysis

max time kernel
147s
max time network
157s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
12/10/2024, 10:18

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General

Target

main.pyc
Size

7KB
MD5

9809e60cbdca68d072a80251b3a93c6c
SHA1

3c79f419fab6e1ae20f1635bcbae8df6221ede47
SHA256

01d442089838b2d3d581899e8e0929a476f5e656142e8fb3ea4c3c9da8c6ffff
SHA512

b6de1323ae2f83cba24f96ebb8bd5a13a9da21087ca24e8b58b1c006bac7cd9e2f9663ce5441e8a2b3e10ad7e9a1c538d37dcc1e426790ddd3720b0b3daa8792
SSDEEP

192:wo9+uqD8sTqKWdXwK3LD3IbzmJhwb05cFMdwTcTNTL2nw:b+udKWuKUzK2b05cFPTqliw

Score

6^/10

discovery

Malware Config

Signatures

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe
File opened for modification	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe

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 2 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	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unregmp2.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3973800497-2716210218-310192997-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-3973800497-2716210218-310192997-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
6084	OpenWith.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5956	unregmp2.exe
Token: SeCreatePagefilePrivilege	5956	unregmp2.exe
Token: SeShutdownPrivilege	5644	wmplayer.exe
Token: SeCreatePagefilePrivilege	5644	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5644	wmplayer.exe

Suspicious use of SetWindowsHookEx 41 IoCs

pid	Process
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe
6084	OpenWith.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 6084 wrote to memory of 5644	6084	OpenWith.exe	79
PID 6084 wrote to memory of 5644	6084	OpenWith.exe	79
PID 6084 wrote to memory of 5644	6084	OpenWith.exe	79
PID 5644 wrote to memory of 5800	5644	wmplayer.exe	82
PID 5644 wrote to memory of 5800	5644	wmplayer.exe	82
PID 5644 wrote to memory of 5800	5644	wmplayer.exe	82
PID 5800 wrote to memory of 5956	5800	unregmp2.exe	83
PID 5800 wrote to memory of 5956	5800	unregmp2.exe	83

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc
1⤵
- Modifies registry class
PID:752

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6084
- C:\Program Files (x86)\Windows Media Player\wmplayer.exe
  "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /Play "C:\Users\Admin\AppData\Local\Temp\main.pyc"
  2⤵
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:5644
- - C:\Windows\SysWOW64\unregmp2.exe
    "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5800
  - - C:\Windows\system32\unregmp2.exe
      "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
      4⤵
      Enumerates connected drives
      Suspicious use of AdjustPrivilegeToken
      PID:5956

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:4496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

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\Media Player\CurrentDatabase_400.wmdb

Filesize
384KB

MD5
62394a137b3beedeb892ed80924de40c

SHA1
fdb8c9cd6bbe15fe618b68e016fa14a59625b767

SHA256
25cce33207ccb0728526e27e43d9a0b2c761f40028fa47e6e77cbf8098747f2f

SHA512
380d75c568c54952468fcbc7dbbb698300174cbe9680ee8818c1534c8fec991ecbe0dcfccac678def9e7284bcb599eb455cda69bfb4caff087093ed19d8722eb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

Filesize
1024KB

MD5
48b426758a49202457948b0902829913

SHA1
37c0582aed5b5cd874dc15e844b51bc95772934c

SHA256
34aa1554e3f1d3d3930da25baf9085bcb144252b9c66a2b8955a6d54ff7989f9

SHA512
e5f46122295255d315242461e97b4f334502f150e242d1934603ea8f65e888b5507f12bfebdfac76d199661554d58d07f87be4600f7365c8317dc9b47962a866

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.DTD

Filesize
498B

MD5
90be2701c8112bebc6bd58a7de19846e

SHA1
a95be407036982392e2e684fb9ff6602ecad6f1e

SHA256
644fbcdc20086e16d57f31c5bad98be68d02b1c061938d2f5f91cbe88c871fbf

SHA512
d618b473b68b48d746c912ac5fc06c73b047bd35a44a6efc7a859fe1162d68015cf69da41a5db504dcbc4928e360c095b32a3b7792fcc6a38072e1ebd12e7cbe

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML

Filesize
9KB

MD5
5433eab10c6b5c6d55b7cbd302426a39

SHA1
c5b1604b3350dab290d081eecd5389a895c58de5

SHA256
23dbf7014e99e93af5f2760f18ee1370274f06a453145c8d539b66d798dad131

SHA512
207b40d6bec65ab147f963a5f42263ae5bf39857987b439a4fa1647bf9b40e99cdc43ff68b7e2463aa9a948284126ac3c9c7af8350c91134b36d8b1a9c61fd34

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak

Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

Download Submit
C:\Users\Admin\AppData\Local\Temp\wmsetup.log

Filesize
1KB

MD5
17af36a6e1e8aa5b05cee4448dee96a4

SHA1
2107428e74f56ba255289a6a7327c9a182c66137

SHA256
564ca6c48e53d6348d8535dab655fad03b8a79bd63f78242a1eff736aaaeb357

SHA512
8e4646645e86d5f49af73b4da9d867887e30118fbf4fb0215e90bbe1b82a988cfdda2139c4146e9943929870480fa7d163be08ad9a04cbe548f07fde297ee755

Download Submit
memory/5644-38-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-40-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-42-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-43-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-41-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-39-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-44-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-45-0x0000000009700000-0x0000000009710000-memory.dmp

Filesize
64KB

Download
memory/5644-37-0x00000000070F0000-0x0000000007100000-memory.dmp

Filesize
64KB

Download