Overview
overview
7Static
static
7KakaoTalk_Setup.exe
windows7-x64
3KakaoTalk_Setup.exe
windows10-2004-x64
7resource/s...01.mp3
windows7-x64
1resource/s...01.mp3
windows10-2004-x64
6resource/s...02.mp3
windows7-x64
1resource/s...02.mp3
windows10-2004-x64
6resource/s...03.mp3
windows7-x64
1resource/s...03.mp3
windows10-2004-x64
6resource/s...04.mp3
windows7-x64
1resource/s...04.mp3
windows10-2004-x64
6resource/s...05.mp3
windows7-x64
1resource/s...05.mp3
windows10-2004-x64
6resource/s...06.mp3
windows7-x64
1resource/s...06.mp3
windows10-2004-x64
6resource/s...08.mp3
windows7-x64
1resource/s...08.mp3
windows10-2004-x64
6resource/s...09.mp3
windows7-x64
1resource/s...09.mp3
windows10-2004-x64
6resource/s...10.mp3
windows7-x64
1resource/s...10.mp3
windows10-2004-x64
6resource/s...11.mp3
windows7-x64
1resource/s...11.mp3
windows10-2004-x64
6resource/s...12.mp3
windows7-x64
1resource/s...12.mp3
windows10-2004-x64
6resource/s...01.mp3
windows7-x64
1resource/s...01.mp3
windows10-2004-x64
6resource/s...02.mp3
windows7-x64
1resource/s...02.mp3
windows10-2004-x64
6resource/s...03.mp3
windows7-x64
1resource/s...03.mp3
windows10-2004-x64
6resource/s...04.mp3
windows7-x64
1resource/s...04.mp3
windows10-2004-x64
6Analysis
-
max time kernel
142s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
10-06-2024 13:24
Behavioral task
behavioral1
Sample
KakaoTalk_Setup.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
KakaoTalk_Setup.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
resource/sound/ns_1_01.mp3
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
resource/sound/ns_1_01.mp3
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
resource/sound/ns_1_02.mp3
Resource
win7-20240508-en
Behavioral task
behavioral6
Sample
resource/sound/ns_1_02.mp3
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
resource/sound/ns_1_03.mp3
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
resource/sound/ns_1_03.mp3
Resource
win10v2004-20240508-en
Behavioral task
behavioral9
Sample
resource/sound/ns_1_04.mp3
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
resource/sound/ns_1_04.mp3
Resource
win10v2004-20240426-en
Behavioral task
behavioral11
Sample
resource/sound/ns_1_05.mp3
Resource
win7-20240215-en
Behavioral task
behavioral12
Sample
resource/sound/ns_1_05.mp3
Resource
win10v2004-20240426-en
Behavioral task
behavioral13
Sample
resource/sound/ns_1_06.mp3
Resource
win7-20240508-en
Behavioral task
behavioral14
Sample
resource/sound/ns_1_06.mp3
Resource
win10v2004-20240508-en
Behavioral task
behavioral15
Sample
resource/sound/ns_1_08.mp3
Resource
win7-20240419-en
Behavioral task
behavioral16
Sample
resource/sound/ns_1_08.mp3
Resource
win10v2004-20240508-en
Behavioral task
behavioral17
Sample
resource/sound/ns_1_09.mp3
Resource
win7-20231129-en
Behavioral task
behavioral18
Sample
resource/sound/ns_1_09.mp3
Resource
win10v2004-20240426-en
Behavioral task
behavioral19
Sample
resource/sound/ns_1_10.mp3
Resource
win7-20240220-en
Behavioral task
behavioral20
Sample
resource/sound/ns_1_10.mp3
Resource
win10v2004-20240226-en
Behavioral task
behavioral21
Sample
resource/sound/ns_1_11.mp3
Resource
win7-20240508-en
Behavioral task
behavioral22
Sample
resource/sound/ns_1_11.mp3
Resource
win10v2004-20240426-en
Behavioral task
behavioral23
Sample
resource/sound/ns_1_12.mp3
Resource
win7-20240221-en
Behavioral task
behavioral24
Sample
resource/sound/ns_1_12.mp3
Resource
win10v2004-20240426-en
Behavioral task
behavioral25
Sample
resource/sound/ns_2_01.mp3
Resource
win7-20240221-en
Behavioral task
behavioral26
Sample
resource/sound/ns_2_01.mp3
Resource
win10v2004-20240426-en
Behavioral task
behavioral27
Sample
resource/sound/ns_2_02.mp3
Resource
win7-20240508-en
Behavioral task
behavioral28
Sample
resource/sound/ns_2_02.mp3
Resource
win10v2004-20240508-en
Behavioral task
behavioral29
Sample
resource/sound/ns_2_03.mp3
Resource
win7-20240508-en
Behavioral task
behavioral30
Sample
resource/sound/ns_2_03.mp3
Resource
win10v2004-20240508-en
Behavioral task
behavioral31
Sample
resource/sound/ns_2_04.mp3
Resource
win7-20240508-en
Behavioral task
behavioral32
Sample
resource/sound/ns_2_04.mp3
Resource
win10v2004-20240508-en
General
-
Target
resource/sound/ns_2_01.mp3
-
Size
31KB
-
MD5
a5b4049f9a4e77ea358b45d5335a2664
-
SHA1
872ca07b40d82df4da5187100d369ea62f98705d
-
SHA256
a3e201455196b85465518d1226f8677ba79e3a612f01b9da312e8de1f3f3e453
-
SHA512
7e4a7d7b475124b90c7e9be229305b3786f4a68a4beffbc2321a9bd968b8015e95899c0cc0b6d4f92a34c8a10ccf4278428a98a12baa4539a33fc6347c74b1c8
-
SSDEEP
384:rUqixCDyBbMQhLGu3eNXYrsNyin2cRVoQHjLQpMm044/BwzntKhnM1t4P3LPJ8z6:IVWyNMUyu3Cor1Zc7+Mb44StKpPJ8z6
Malware Config
Signatures
-
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
unregmp2.exedescription ioc process File opened (read-only) \??\U: unregmp2.exe File opened (read-only) \??\W: unregmp2.exe File opened (read-only) \??\Y: unregmp2.exe File opened (read-only) \??\E: unregmp2.exe File opened (read-only) \??\G: unregmp2.exe File opened (read-only) \??\R: unregmp2.exe File opened (read-only) \??\O: unregmp2.exe File opened (read-only) \??\P: unregmp2.exe File opened (read-only) \??\Q: unregmp2.exe File opened (read-only) \??\S: unregmp2.exe File opened (read-only) \??\V: unregmp2.exe File opened (read-only) \??\L: unregmp2.exe File opened (read-only) \??\M: unregmp2.exe File opened (read-only) \??\N: unregmp2.exe File opened (read-only) \??\I: unregmp2.exe File opened (read-only) \??\K: unregmp2.exe File opened (read-only) \??\X: unregmp2.exe File opened (read-only) \??\A: unregmp2.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) \??\Z: unregmp2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
unregmp2.exedescription pid process Token: SeShutdownPrivilege 3052 unregmp2.exe Token: SeCreatePagefilePrivilege 3052 unregmp2.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
wmplayer.exeunregmp2.exedescription pid process target process PID 3844 wrote to memory of 4700 3844 wmplayer.exe setup_wm.exe PID 3844 wrote to memory of 4700 3844 wmplayer.exe setup_wm.exe PID 3844 wrote to memory of 4700 3844 wmplayer.exe setup_wm.exe PID 3844 wrote to memory of 4536 3844 wmplayer.exe unregmp2.exe PID 3844 wrote to memory of 4536 3844 wmplayer.exe unregmp2.exe PID 3844 wrote to memory of 4536 3844 wmplayer.exe unregmp2.exe PID 4536 wrote to memory of 3052 4536 unregmp2.exe unregmp2.exe PID 4536 wrote to memory of 3052 4536 unregmp2.exe unregmp2.exe
Processes
-
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\resource\sound\ns_2_01.mp3"1⤵
- Suspicious use of WriteProcessMemory
PID:3844 -
C:\Program Files (x86)\Windows Media Player\setup_wm.exe"C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\resource\sound\ns_2_01.mp3"2⤵PID:4700
-
C:\Windows\SysWOW64\unregmp2.exe"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon2⤵
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Windows\system32\unregmp2.exe"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:3052
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdbFilesize
256KB
MD5adbd8353954edbe5e0620c5bdcad4363
SHA1aeb5c03e8c1b8bc5d55683ea113e6ce1be7ac6e6
SHA25664eff10c4e866930d32d4d82cc88ec0e6f851ac49164122cae1b27eb3c9d9d55
SHA51287bf4a2dc4dd5c833d96f3f5cb0b607796414ffee36d5c167a75644bcbb02ab5159aa4aa093ed43abe290481abc01944885c68b1755d9b2c4c583fcccd041fd2
-
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XMLFilesize
9KB
MD57050d5ae8acfbe560fa11073fef8185d
SHA15bc38e77ff06785fe0aec5a345c4ccd15752560e
SHA256cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
SHA512a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b
-
C:\Users\Admin\AppData\Local\Temp\wmsetup.logFilesize
1KB
MD5e3670438aa755c0357f67bd9a7c4d878
SHA139bb7cd930da44fb99f06bd182b411369076db2b
SHA2560c59ee4679df2ca6d0032fbe7030850fd39f3d15562b75435688475ec98d6e99
SHA5129d2aec8494d2abb96339506f4cf362b534bec25ee6833fed586453239f6e5114f2077083cef46eba246813015dff2e0f88a6192edbf3b8841a857583d323b57d