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
140s -
max time network
161s -
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_2_04.mp3
-
Size
39KB
-
MD5
a2b711aa30ea84429973b2d025462d2e
-
SHA1
86ddb97c4b70fd323a7ea9b082c5edc0597c6dad
-
SHA256
71f1a917920406701c916c013af562150678d07bde6d397fca0341ee988b9d4c
-
SHA512
ae1817417f877cc37e5303184887299ceed53e77eeff2c89bcdeaac9e83447ffdce09f1f7d8089beaef57974c270698f61eaf564f713bd6e88bbf63885c870a1
-
SSDEEP
768:8S5VBOYfQdG3mGqGUdX7ObIYhvL0wJZrcWQTYfBsrh:8e8YI4qpLOMYpgoZwWQMpoh
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) \??\E: unregmp2.exe File opened (read-only) \??\H: unregmp2.exe File opened (read-only) \??\I: unregmp2.exe File opened (read-only) \??\V: unregmp2.exe File opened (read-only) \??\B: unregmp2.exe File opened (read-only) \??\K: unregmp2.exe File opened (read-only) \??\L: unregmp2.exe File opened (read-only) \??\P: unregmp2.exe File opened (read-only) \??\T: unregmp2.exe File opened (read-only) \??\Z: unregmp2.exe File opened (read-only) \??\A: unregmp2.exe File opened (read-only) \??\G: unregmp2.exe File opened (read-only) \??\M: unregmp2.exe File opened (read-only) \??\O: unregmp2.exe File opened (read-only) \??\W: unregmp2.exe File opened (read-only) \??\X: unregmp2.exe File opened (read-only) \??\Y: unregmp2.exe File opened (read-only) \??\J: unregmp2.exe File opened (read-only) \??\N: unregmp2.exe File opened (read-only) \??\Q: unregmp2.exe File opened (read-only) \??\R: unregmp2.exe File opened (read-only) \??\S: unregmp2.exe File opened (read-only) \??\U: unregmp2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
unregmp2.exedescription pid process Token: SeShutdownPrivilege 2380 unregmp2.exe Token: SeCreatePagefilePrivilege 2380 unregmp2.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
wmplayer.exeunregmp2.exedescription pid process target process PID 1712 wrote to memory of 932 1712 wmplayer.exe setup_wm.exe PID 1712 wrote to memory of 932 1712 wmplayer.exe setup_wm.exe PID 1712 wrote to memory of 932 1712 wmplayer.exe setup_wm.exe PID 1712 wrote to memory of 2736 1712 wmplayer.exe unregmp2.exe PID 1712 wrote to memory of 2736 1712 wmplayer.exe unregmp2.exe PID 1712 wrote to memory of 2736 1712 wmplayer.exe unregmp2.exe PID 2736 wrote to memory of 2380 2736 unregmp2.exe unregmp2.exe PID 2736 wrote to memory of 2380 2736 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_04.mp3"1⤵
- Suspicious use of WriteProcessMemory
PID:1712 -
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_04.mp3"2⤵PID:932
-
C:\Windows\SysWOW64\unregmp2.exe"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon2⤵
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Windows\system32\unregmp2.exe"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:2380
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
MD58f7c65e0fce3f8147f5109004eabad9b
SHA1fa1f0c27f8988bfb1985628b962a048fbeae1933
SHA256bbfe88e511f4cad914711f616dca352b6a877252378642aaf6c84a0b664037a5
SHA512fc3d02f36820854c2f33bae09a7a748095e5b21afa064193630fd8541453880e21718b81feff10bb714f235f7c5a218a3e8854d8cf10f0aaca74c22e3ff0751d