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
47s -
max time network
53s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-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_1_01.mp3
-
Size
29KB
-
MD5
832682ab6cac2b56995213b843458169
-
SHA1
801575a1bdc50c6d86b51129163f41896ed8f5f4
-
SHA256
a817e7c3c4311cb1f9988d4d1c96895b9374495aaf03eb79039087813ecee8bd
-
SHA512
e70fdc7e3b453b51fbe5a344d3a956678663871c2a2bc229b7753ca2a38369e62707842b6d4ca06946d5542258997a6ecc6485fdf71f5bbe70b842c90e5a8aec
-
SSDEEP
768:hEgcaS8L+O7F/P7ENYxNsse+SN5nQjTK88yTQKz5Zieeaj0BJr:hl7S8qm/P7EGO5+S5g8yT7/Re3F
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) \??\B: unregmp2.exe File opened (read-only) \??\M: unregmp2.exe File opened (read-only) \??\O: unregmp2.exe File opened (read-only) \??\S: unregmp2.exe File opened (read-only) \??\T: unregmp2.exe File opened (read-only) \??\W: unregmp2.exe File opened (read-only) \??\A: unregmp2.exe File opened (read-only) \??\G: unregmp2.exe File opened (read-only) \??\P: unregmp2.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) \??\J: unregmp2.exe File opened (read-only) \??\V: unregmp2.exe File opened (read-only) \??\X: unregmp2.exe File opened (read-only) \??\Z: unregmp2.exe File opened (read-only) \??\E: unregmp2.exe File opened (read-only) \??\H: unregmp2.exe File opened (read-only) \??\I: unregmp2.exe File opened (read-only) \??\K: unregmp2.exe File opened (read-only) \??\L: unregmp2.exe File opened (read-only) \??\N: unregmp2.exe File opened (read-only) \??\Y: unregmp2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
unregmp2.exedescription pid process Token: SeShutdownPrivilege 1420 unregmp2.exe Token: SeCreatePagefilePrivilege 1420 unregmp2.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
wmplayer.exeunregmp2.exedescription pid process target process PID 3468 wrote to memory of 2728 3468 wmplayer.exe setup_wm.exe PID 3468 wrote to memory of 2728 3468 wmplayer.exe setup_wm.exe PID 3468 wrote to memory of 2728 3468 wmplayer.exe setup_wm.exe PID 3468 wrote to memory of 3804 3468 wmplayer.exe unregmp2.exe PID 3468 wrote to memory of 3804 3468 wmplayer.exe unregmp2.exe PID 3468 wrote to memory of 3804 3468 wmplayer.exe unregmp2.exe PID 3804 wrote to memory of 1420 3804 unregmp2.exe unregmp2.exe PID 3804 wrote to memory of 1420 3804 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_1_01.mp3"1⤵
- Suspicious use of WriteProcessMemory
PID:3468 -
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_1_01.mp3"2⤵PID:2728
-
C:\Windows\SysWOW64\unregmp2.exe"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon2⤵
- Suspicious use of WriteProcessMemory
PID:3804 -
C:\Windows\system32\unregmp2.exe"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:1420
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdbFilesize
64KB
MD5987a07b978cfe12e4ce45e513ef86619
SHA122eec9a9b2e83ad33bedc59e3205f86590b7d40c
SHA256f1a4a978ce1c4731df1594043135cf58d084fdf129dd1c8e4507c9e06eac5ea8
SHA51239b86540e4d35c84609ef66537b5aa02058e3d4293f902127c7d4eac8ffc65920cb5c69a77552fc085687eed66e38367f83c177046d0ecb8e6d135463cc142aa
-
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
MD5282b3b6c8d3516e5221a4afd7575ce4e
SHA178657c6beab6ac999a0a4d857a2af7023211c64d
SHA25697a39cd3e8b502f8c33246055d7fadde726746bfc9e815d66ca6ce829cfb346b
SHA5124106dd6f2c4d02bce1a299ad3e865436f940851728fa554b63bae054f8c590e7ab94f2a282e54ec315efac0dd59d80b1faf9d29a90e77edb8a5bc44ca4da0fba