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
157s -
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_1_11.mp3
-
Size
26KB
-
MD5
19d2c9fb173d47832e8d0e1f41562e44
-
SHA1
0d05d323b27a0f6d685d42dada66aed90d379f76
-
SHA256
3143bb9bd456a250f770a795adca3a5d6d367fa92c4a5f8672f50ecd37bd8dc0
-
SHA512
65f6d40a208ab5788888d28890df2d6f53d13ea5837f975bb0cdbd8ca512ae084fc689d969190e691c472aeb8b2f9494a81e5f877dcce987b795e301c25e7421
-
SSDEEP
768:m44KY4pkni3xpawukA036FkJZtJcUa05q:VYhnihWkh62JZtKUat
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) \??\I: unregmp2.exe File opened (read-only) \??\K: unregmp2.exe File opened (read-only) \??\O: unregmp2.exe File opened (read-only) \??\W: unregmp2.exe File opened (read-only) \??\H: 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) \??\T: unregmp2.exe File opened (read-only) \??\Z: unregmp2.exe File opened (read-only) \??\A: unregmp2.exe File opened (read-only) \??\E: unregmp2.exe File opened (read-only) \??\J: unregmp2.exe File opened (read-only) \??\M: unregmp2.exe File opened (read-only) \??\N: unregmp2.exe File opened (read-only) \??\Y: unregmp2.exe File opened (read-only) \??\G: unregmp2.exe File opened (read-only) \??\L: 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) \??\X: unregmp2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
unregmp2.exedescription pid process Token: SeShutdownPrivilege 4376 unregmp2.exe Token: SeCreatePagefilePrivilege 4376 unregmp2.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
wmplayer.exeunregmp2.exedescription pid process target process PID 1188 wrote to memory of 1232 1188 wmplayer.exe setup_wm.exe PID 1188 wrote to memory of 1232 1188 wmplayer.exe setup_wm.exe PID 1188 wrote to memory of 1232 1188 wmplayer.exe setup_wm.exe PID 1188 wrote to memory of 4848 1188 wmplayer.exe unregmp2.exe PID 1188 wrote to memory of 4848 1188 wmplayer.exe unregmp2.exe PID 1188 wrote to memory of 4848 1188 wmplayer.exe unregmp2.exe PID 4848 wrote to memory of 4376 4848 unregmp2.exe unregmp2.exe PID 4848 wrote to memory of 4376 4848 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_11.mp3"1⤵
- Suspicious use of WriteProcessMemory
PID:1188 -
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_11.mp3"2⤵PID:1232
-
C:\Windows\SysWOW64\unregmp2.exe"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon2⤵
- Suspicious use of WriteProcessMemory
PID:4848 -
C:\Windows\system32\unregmp2.exe"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:4376
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
MD5d5603c26cc61047d1e6a4342f52fe5cd
SHA18f1831c76eb9d26bfea0e62867df50c70c42bc81
SHA2569336bd83152cb11f5c292c322d8bbc716eadf047723b795cc381cdad2c01c596
SHA512ebc39739b659865817cbbd8108b6a6addf8f92bd3e03c604035ab866b5ef617cb2b57cdd8cb29beac626b678449f936fbf06048100a902210fd8e11c80f9bd7f