d26abc18681ef38f6352f675616420c08aa9d24ce157d088199903675178204e

General

Target

HA_YambMP4Tools-200Prev_CZ.exe
Size

5.7MB
MD5

03a473a1ef33aad4b58f5c54ee1eee6f
SHA1

bd1673d3a368d4296d6c780afb0d2f7446e8cba9
SHA256

088ff82cdfac55d66ce62c14ec9a42ecc205e663e48dc027716431579c3fdefa
SHA512

4d240547293c4b2ba40594975cda2a63e60bf37a86a361e59a0635d70c47cc1fa1614ebed110b340fb14eca73f3e26b5ac61e766128b9bf69d8a9f9250494659
SSDEEP

98304:dXsM8W/gE7o1z3U246136YrEWnjH8fzJ2I3kSgA8FUPpefRabQc0kq:p1zoGS3Rt6YrJnhI3kSsdRUGX

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 8 IoCs

pid	Process
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	HA_YambMP4Tools-200Prev_CZ.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3548	HA_YambMP4Tools-200Prev_CZ.exe
3548	HA_YambMP4Tools-200Prev_CZ.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2856	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2856	AUDIODG.EXE

C:\Users\Admin\AppData\Local\Temp\HA_YambMP4Tools-200Prev_CZ.exe
"C:\Users\Admin\AppData\Local\Temp\HA_YambMP4Tools-200Prev_CZ.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3548

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x418 0x320
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\NSISUtils\msvcr71.dll

Filesize
340KB

MD5
86f1895ae8c5e8b17d99ece768a70732

SHA1
d5502a1d00787d68f548ddeebbde1eca5e2b38ca

SHA256
8094af5ee310714caebccaeee7769ffb08048503ba478b879edfef5f1a24fefe

SHA512
3b7ce2b67056b6e005472b73447d2226677a8cadae70428873f7efa5ed11a3b3dbf6b1a42c5b05b1f2b1d8e06ff50dfc6532f043af8452ed87687eefbf1791da

Download Submit
C:\Users\Admin\AppData\Local\Temp\NSISUtils\nsisutils.dll

Filesize
4KB

MD5
03a477dd69bd11877e2ac1953947c400

SHA1
e33881e8203674cc94bc9fcbde3e1f65ed4be5c7

SHA256
03c50276af73bb72b533f8936a57bbabe41e3b7d5e24cf60eb32f3b9df2cdd61

SHA512
c8d657199b7c2e2d3c9d76897426b1b9f227bd9d341481f059ab1ae6d79514e94620ec6434e32a6a07095350c90a80bfa46384cef12e309ba6f661d2ddac81af

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxBF89.tmp\bassmod.dll

Filesize
33KB

MD5
e4ec57e8508c5c4040383ebe6d367928

SHA1
b22bcce36d9fdeae8ab7a7ecc0b01c8176648d06

SHA256
8ad9e47693e292f381da42ddc13724a3063040e51c26f4ca8e1f8e2f1ddd547f

SHA512
77d5cf66caf06e192e668fae2b2594e60a498e8e0ccef5b09b9710721a4cdb0c852d00c446fd32c5b5c85e739de2e73cb1f1f6044879fe7d237341bbb6f27822

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxBF89.tmp\brandingurl.dll

Filesize
3KB

MD5
9c3488b5e9655d1837c3963ecec33f70

SHA1
f0fa9b4c29e75c6e4419c4633d09f2797aee2ef3

SHA256
05ef4beb7fab9d04c1fb251874166fa2d73a34b4a7f2b145d37a2fd00c88979a

SHA512
6af9f88d65d2279a71620f2a656062b1737b3a9a1692ed4e5887bdee891ce08d21c5c0b25ab3acbe6da9fe255dcd7f8a517c2751e73dc56add216740c945e4a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxBF89.tmp\installoptions.dll

Filesize
14KB

MD5
31b4ece3f8a5ee488896eda8dfd0406b

SHA1
40c4a7db8dfadd7ba7f64ff3bbfc635c5ec821f7

SHA256
3c69419c7884e9e8cae83217b0afd286b7fa89dec931e815ef48805d3f3cca08

SHA512
d188b51ed5e59931c4eacda75d18fa3a7af4fe191e777da97aa266e763c73b94d32abca21620a12c0d1ad7777dec5aeded5cb4d8075fbae1e3ca34ea18d1a8a0

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxBF89.tmp\ioSpecial.ini

Filesize
952B

MD5
dc002b7797ff93c300f1e9a1cfed281c

SHA1
bf2de0e688dd85f917b49a9ddde90af7a9388be0

SHA256
b70e8eaf843d34d483a2f450cec6efa124524f4686a5e18db96d08a67274a01a

SHA512
3b2fa0400ede8f8547e9f3c619cd422ab67983a0a8e056705515ecfbe6d8858b6be48e37c47b94231ff1d366563c09f93e79e507a984404e53ff114e1b1487db

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxBF89.tmp\system.dll

Filesize
9KB

MD5
4b81f1eb7225a705d7694df2bdd73fd9

SHA1
d5180ccc5883c22c1a84c835769c7d1a7b7d4be5

SHA256
970a2be7763cae9e7e35312b6fe91d7e79c1a2cf671d4f5da76985539e1af148

SHA512
9804dab9b4579b01d1842e1e809badeb7b8de84962777217d6ccaf6c94ae66228b1412cbfb11da4620cd6888cd6aacf6c939f82cedb3cc413441c55854085379

Download Submit
memory/3548-129-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-137-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-19-0x0000000000B52000-0x0000000000B53000-memory.dmp

Filesize
4KB

Download
memory/3548-126-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3548-127-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-0-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3548-131-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-133-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-135-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-18-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-139-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-141-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-143-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-145-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-147-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-149-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-151-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-153-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-155-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download
memory/3548-157-0x0000000000B40000-0x0000000000B53000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing