7f7821072d79a0deb26affbf11a4e73d86bfae4a3ef05f9ae6d41757b06a3617

Analysis

max time kernel
146s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-08-2024 21:06

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General

Target

MailRanger/how to mail_1.mp4
Size

102.5MB
MD5

c3fd4ba9f6aaaa629dfd41778be61eab
SHA1

d9c6c995d4db387c763aaf0dda3ea41ca8904710
SHA256

0bda1925009f26fd58dcd3376c2da5b28753c6f1f022a8388ff928825d03ebbf
SHA512

308a695d6c61deed48adbe279bebbdb59f302c152b24321744de3a2202941289ddf79b0c6f379c92c71abe043132421aa65da5b876d056efd006cb0f725b3be3
SSDEEP

3145728:nQi1aKHLGIxyq6pEn/Fqs49QkP8vi8FsBwU:nQrNq0EcV9lPz8NU

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)	\??\R:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\A:	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-1-5-21-355097885-2402257403-2971294179-1000\{5DC8B31A-BD2E-40DC-AD46-41B5C534135F}	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2880	unregmp2.exe
Token: SeCreatePagefilePrivilege	2880	unregmp2.exe
Token: SeShutdownPrivilege	728	wmplayer.exe
Token: SeCreatePagefilePrivilege	728	wmplayer.exe
Token: 33	2052	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2052	AUDIODG.EXE
Token: SeShutdownPrivilege	728	wmplayer.exe
Token: SeCreatePagefilePrivilege	728	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
728	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 2724	728	wmplayer.exe	85
PID 728 wrote to memory of 2724	728	wmplayer.exe	85
PID 728 wrote to memory of 2724	728	wmplayer.exe	85
PID 2724 wrote to memory of 2880	2724	unregmp2.exe	86
PID 2724 wrote to memory of 2880	2724	unregmp2.exe	86

C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\MailRanger\how to mail_1.mp4"
1⤵
- 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:728
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:2880

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:1156

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x33c 0x4e0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2052

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
256KB

MD5
adbd8353954edbe5e0620c5bdcad4363

SHA1
aeb5c03e8c1b8bc5d55683ea113e6ce1be7ac6e6

SHA256
64eff10c4e866930d32d4d82cc88ec0e6f851ac49164122cae1b27eb3c9d9d55

SHA512
87bf4a2dc4dd5c833d96f3f5cb0b607796414ffee36d5c167a75644bcbb02ab5159aa4aa093ed43abe290481abc01944885c68b1755d9b2c4c583fcccd041fd2

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

Filesize
1024KB

MD5
d24ffa0df7a6dc30a343c85707bf274e

SHA1
a98954fcf6735454eb3efe37c469feffe22eaeff

SHA256
e34cb089f99f0a4a38c16cefe3a4bf4b00ae5e1688d8422b318a10674e1f42fc

SHA512
752a1cd1cfe9f6f356ad201ec38db9fcc3fca2b0fc1d453660a0f79cc3b3c24e9af5be6a32b4a8a13f2e7da559ae36b042540f1f4d334073b16cc630cb0b7dac

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
e808fdd64744df8b96fca387ba94da41

SHA1
fb7287b122babd81f148b8c2e3fa546c5080a67c

SHA256
1778e21c09aae6431d3f22cfff24345c1bd00a94f8159a8dec333dc30dd50239

SHA512
d79c07d1ee5ffd2530d5b963eb9c80ce0ab2bd0516b5a36bd04ac37311687003f1161e83cdee64ec814fe960125b89faa7f29b9ab644b4f712d85bce54c9c0d9

Download Submit
memory/728-37-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/728-35-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/728-36-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/728-38-0x0000000007570000-0x0000000007580000-memory.dmp

Filesize
64KB

Download
memory/728-39-0x0000000009850000-0x0000000009860000-memory.dmp

Filesize
64KB

Download
memory/728-40-0x0000000009850000-0x0000000009860000-memory.dmp

Filesize
64KB

Download
memory/728-42-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/728-41-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/728-43-0x0000000009850000-0x0000000009860000-memory.dmp

Filesize
64KB

Download
memory/728-34-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download