b52bc0e94ae7c823753777aab3223ec9eda314584744c7bd7a2c624e68ad5028

Analysis

max time kernel
896s
max time network
448s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
28-12-2024 10:10

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General

Target

XWorm v5.1-5.2/XWorm/XWorm V5.2/Sounds/Intro.wav
Size

238KB
MD5

ad3b4fae17bcabc254df49f5e76b87a6
SHA1

1683ff029eebaffdc7a4827827da7bb361c8747e
SHA256

e3e5029bf5f29fa32d2f6cdda35697cd8e6035d5c78615f64d0b305d1bd926cf
SHA512

3d6ecc9040b5079402229c214cb5f9354315131a630c43d1da95248edc1b97627fb9ba032d006380a67409619763fb91976295f8d22ca91894c88f38bb610cd3
SSDEEP

3072:FU3hYG9X9JzhaLL5+QYKHZDa6D+4LT92KEpcP+b8FGUt0Ybs5e9jXjubLtNmBNs9:GjVsLL5lva6D+4P9llWvaGe9CHeBNm

Score

6^/10

discovery

Malware Config

Signatures

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File opened for modification	C:\Users\Public\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	wmplayer.exe

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

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2410826464-2353372766-2364966905-1000\{B4D2FFA8-55CF-4B24-8961-C889A02A359D}	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4892	wmplayer.exe
Token: SeCreatePagefilePrivilege	4892	wmplayer.exe
Token: SeShutdownPrivilege	4276	unregmp2.exe
Token: SeCreatePagefilePrivilege	4276	unregmp2.exe
Token: 33	400	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	400	AUDIODG.EXE
Token: SeShutdownPrivilege	4892	wmplayer.exe
Token: SeCreatePagefilePrivilege	4892	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4892	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 2116	4892	wmplayer.exe	78
PID 4892 wrote to memory of 2116	4892	wmplayer.exe	78
PID 4892 wrote to memory of 2116	4892	wmplayer.exe	78
PID 2116 wrote to memory of 4276	2116	unregmp2.exe	79
PID 2116 wrote to memory of 4276	2116	unregmp2.exe	79

C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /Open "C:\Users\Admin\AppData\Local\Temp\XWorm v5.1-5.2\XWorm\XWorm V5.2\Sounds\Intro.wav"
1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:4276

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:1500

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004B8 0x00000000000004DC
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:400

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
64KB

MD5
066f6e5acfff197d12b550ef7d452d41

SHA1
aaa8cfa5a56519594490d069f31a42a15ca515a2

SHA256
cac3a8354c7766b4ce0900bf4d8097bf372ec405a6af4bba63a6d92132932a30

SHA512
21c3985bdc883b7c0fcdfb660a577eb03870943d9e812a24726158b6c06cc36b00425fdeafddcb099fddd1488173280563f7241c9589e69d04d1eb1b5daa786b

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

Filesize
1024KB

MD5
c7b77c4c0e467ddefb387f98028eb5c6

SHA1
92efdc5cc691b837a836e8b49c599848cf2fa8cd

SHA256
1a6a4fc9a66916dd0392395478a2fb94e34fad2ddfd5c63ab90012a1d1ec3022

SHA512
d85be3690768f2fca681cf30869c0544358f2a763bcd252fa43fe6f6dab13915fc1c81661f4a800484cd37d8eff148544dad5172d3202dd15790ead2ff9d4c8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Media Player\LocalMLS_3.wmdb

Filesize
68KB

MD5
959020a2b7613073e17ba49030f56ca6

SHA1
8b226d1f8a6501356034a711ad51b9c7741930ff

SHA256
cc982aa09e1a3401fa6a9874b1c8b370b31ec551935027c6087230e24c001dd3

SHA512
95f4c00914909984c4eb1c97d38c4454e4feb72006ab43af6d568d4d5cf95956ec3b84a72697b243c04504c8660b1a9a6d07444e188a53c445b3e81d117c9c76

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
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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

Filesize
1KB

MD5
ef8bf10b43e407fe2a8db77909b768fc

SHA1
112e9da8593f1fccf9dab92ab0a04a89350b4fe8

SHA256
00031d24501cf3b39b4b0a6e8109c1347dbc1e9ca8d98645dd0e4d19a9f022c4

SHA512
a3ce516f8388e3d0eae451ffc6f855ea6915300a0b451ce751b2befceb777ce1ad36e13d24cf2c5e1d822890ddcb4574d934f4a1eb9c7871f21421e8650bc289

Download Submit
memory/4892-31-0x0000000004780000-0x0000000004790000-memory.dmp

Filesize
64KB

Download
memory/4892-34-0x0000000004780000-0x0000000004790000-memory.dmp

Filesize
64KB

Download
memory/4892-33-0x0000000004780000-0x0000000004790000-memory.dmp

Filesize
64KB

Download
memory/4892-32-0x0000000004780000-0x0000000004790000-memory.dmp

Filesize
64KB

Download
memory/4892-36-0x0000000004780000-0x0000000004790000-memory.dmp

Filesize
64KB

Download
memory/4892-35-0x0000000004780000-0x0000000004790000-memory.dmp

Filesize
64KB

Download