xmrig | 5ceca4728f509e3b8b58f71296472de6572c63db934b2e9c2530cae561ae608a

General

Target

sample.exe
Size

4.6MB
MD5

97a2004028b9687561993ed9cabc0ee4
SHA1

3d35d423479b1b8a755144c30a4b347d4f915175
SHA256

5ceca4728f509e3b8b58f71296472de6572c63db934b2e9c2530cae561ae608a
SHA512

e0c196fd1e70d01910ea2a944ad46d7aeb87a34efc305a904ec2dde2848ce76e744beb638611c45d292c2733b7a4bcf93e76297fda80ddd2b8c9e103c35c1de0

Score

10^/10

xmrig bootkit miner persistence

Malware Config

Signatures

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig
Executes dropped EXE 3 IoCs

Processes:

._cache_sample.exeSynaptics.exeyykymu.exe

pid process

612 ._cache_sample.exe
1964 Synaptics.exe
772 yykymu.exe
Loads dropped DLL 3 IoCs

Processes:

sample.exe

pid process

1724 sample.exe
1724 sample.exe
1724 sample.exe

pid	process
1724	sample.exe
1724	sample.exe
1724	sample.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

sample.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	sample.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

yykymu.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 yykymu.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	yykymu.exe

Drops file in System32 directory 2 IoCs

Processes:

._cache_sample.exe

description	ioc	process
File created	C:\Windows\SysWOW64\yykymu.exe	._cache_sample.exe
File opened for modification	C:\Windows\SysWOW64\yykymu.exe	._cache_sample.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 64 IoCs

Processes:

._cache_sample.exeyykymu.exe

pid	process
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
612	._cache_sample.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe
772	yykymu.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

yykymu.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	yykymu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	yykymu.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

._cache_sample.exeyykymu.exe

description pid process

Token: SeIncBasePriorityPrivilege 612 ._cache_sample.exe
Token: SeShutdownPrivilege 772 yykymu.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	612	._cache_sample.exe
Token: SeShutdownPrivilege	772	yykymu.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

sample.exe._cache_sample.exe

description	pid	process	target process
PID 1724 wrote to memory of 612	1724	sample.exe	._cache_sample.exe
PID 1724 wrote to memory of 612	1724	sample.exe	._cache_sample.exe
PID 1724 wrote to memory of 612	1724	sample.exe	._cache_sample.exe
PID 1724 wrote to memory of 612	1724	sample.exe	._cache_sample.exe
PID 1724 wrote to memory of 1964	1724	sample.exe	Synaptics.exe
PID 1724 wrote to memory of 1964	1724	sample.exe	Synaptics.exe
PID 1724 wrote to memory of 1964	1724	sample.exe	Synaptics.exe
PID 1724 wrote to memory of 1964	1724	sample.exe	Synaptics.exe
PID 612 wrote to memory of 816	612	._cache_sample.exe	cmd.exe
PID 612 wrote to memory of 816	612	._cache_sample.exe	cmd.exe
PID 612 wrote to memory of 816	612	._cache_sample.exe	cmd.exe
PID 612 wrote to memory of 816	612	._cache_sample.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1724

C:\Users\Admin\AppData\Local\Temp\._cache_sample.exe
"C:\Users\Admin\AppData\Local\Temp\._cache_sample.exe"
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:612

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\_CACHE~1.EXE > nul
3⤵
PID:816

C:\ProgramData\Synaptics\Synaptics.exe
"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
2⤵
- Executes dropped EXE
PID:1964

C:\Windows\SysWOW64\yykymu.exe
C:\Windows\SysWOW64\yykymu.exe
1⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:772

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1880

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\Synaptics\Synaptics.exe
MD5
e1230466283011778b5ddb2c622a9beb

SHA1
a6e476c1821d6ee42ead730843331e0661e3bad2

SHA256
bf3cccf8a6099b0f5788d11d7c26532e89d03eb22f019dff9f17803508e071f1

SHA512
23449bb0a1fc8d6fc1db86554b07771e95a816d6299fcffbb35dd229769d261f820d0fb27b5536235b1de7364cf4701de6245b9cc47ea53ef96c42aaa0724449

Download Submit
C:\Users\Admin\AppData\Local\Temp\._cache_sample.exe
MD5
0c77a192f14fbf587e4f7fbf7abe03f6

SHA1
21373d839c4392046254d9afee6bcd4bed344db6

SHA256
9a3802de337c11336c8b40a7cdbbe4668eec13d86f7db7c4a8e20bd20932496d

SHA512
abbf7585ae9c97b40200c777ca58b9df87d0591debdacebe56f9ccc49d1cf8a56644a9771b1e719eeab285456dbabeb8963df95ee25693860006b09e8cb89c20

Download Submit
C:\Users\Admin\AppData\Local\Temp\._cache_sample.exe
MD5
0c77a192f14fbf587e4f7fbf7abe03f6

SHA1
21373d839c4392046254d9afee6bcd4bed344db6

SHA256
9a3802de337c11336c8b40a7cdbbe4668eec13d86f7db7c4a8e20bd20932496d

SHA512
abbf7585ae9c97b40200c777ca58b9df87d0591debdacebe56f9ccc49d1cf8a56644a9771b1e719eeab285456dbabeb8963df95ee25693860006b09e8cb89c20

Download Submit
C:\Windows\SysWOW64\yykymu.exe
MD5
0c77a192f14fbf587e4f7fbf7abe03f6

SHA1
21373d839c4392046254d9afee6bcd4bed344db6

SHA256
9a3802de337c11336c8b40a7cdbbe4668eec13d86f7db7c4a8e20bd20932496d

SHA512
abbf7585ae9c97b40200c777ca58b9df87d0591debdacebe56f9ccc49d1cf8a56644a9771b1e719eeab285456dbabeb8963df95ee25693860006b09e8cb89c20

Download Submit
C:\Windows\SysWOW64\yykymu.exe
MD5
0c77a192f14fbf587e4f7fbf7abe03f6

SHA1
21373d839c4392046254d9afee6bcd4bed344db6

SHA256
9a3802de337c11336c8b40a7cdbbe4668eec13d86f7db7c4a8e20bd20932496d

SHA512
abbf7585ae9c97b40200c777ca58b9df87d0591debdacebe56f9ccc49d1cf8a56644a9771b1e719eeab285456dbabeb8963df95ee25693860006b09e8cb89c20

Download Submit
\ProgramData\Synaptics\Synaptics.exe
MD5
e1230466283011778b5ddb2c622a9beb

SHA1
a6e476c1821d6ee42ead730843331e0661e3bad2

SHA256
bf3cccf8a6099b0f5788d11d7c26532e89d03eb22f019dff9f17803508e071f1

SHA512
23449bb0a1fc8d6fc1db86554b07771e95a816d6299fcffbb35dd229769d261f820d0fb27b5536235b1de7364cf4701de6245b9cc47ea53ef96c42aaa0724449

Download Submit
\ProgramData\Synaptics\Synaptics.exe
MD5
e1230466283011778b5ddb2c622a9beb

SHA1
a6e476c1821d6ee42ead730843331e0661e3bad2

SHA256
bf3cccf8a6099b0f5788d11d7c26532e89d03eb22f019dff9f17803508e071f1

SHA512
23449bb0a1fc8d6fc1db86554b07771e95a816d6299fcffbb35dd229769d261f820d0fb27b5536235b1de7364cf4701de6245b9cc47ea53ef96c42aaa0724449

Download Submit
\Users\Admin\AppData\Local\Temp\._cache_sample.exe
MD5
0c77a192f14fbf587e4f7fbf7abe03f6

SHA1
21373d839c4392046254d9afee6bcd4bed344db6

SHA256
9a3802de337c11336c8b40a7cdbbe4668eec13d86f7db7c4a8e20bd20932496d

SHA512
abbf7585ae9c97b40200c777ca58b9df87d0591debdacebe56f9ccc49d1cf8a56644a9771b1e719eeab285456dbabeb8963df95ee25693860006b09e8cb89c20

Download Submit
memory/612-80-0x0000000002930000-0x0000000002A41000-memory.dmp

Filesize
1.1MB

Download
memory/612-81-0x0000000002A50000-0x0000000002B51000-memory.dmp

Filesize
1.0MB

Download
memory/612-73-0x0000000075FB0000-0x0000000075FF7000-memory.dmp

Filesize
284KB

Download
memory/612-76-0x00000000760A0000-0x0000000076140000-memory.dmp

Filesize
640KB

Download
memory/612-77-0x0000000002440000-0x0000000002489000-memory.dmp

Filesize
292KB

Download
memory/612-62-0x0000000000000000-mapping.dmp

Download
memory/612-82-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/612-78-0x0000000002600000-0x0000000002781000-memory.dmp

Filesize
1.5MB

Download
memory/772-95-0x00000000028F0000-0x0000000002A01000-memory.dmp

Filesize
1.1MB

Download
memory/772-88-0x0000000075FB0000-0x0000000075FF7000-memory.dmp

Filesize
284KB

Download
memory/772-91-0x00000000760A0000-0x0000000076140000-memory.dmp

Filesize
640KB

Download
memory/772-92-0x0000000002430000-0x0000000002479000-memory.dmp

Filesize
292KB

Download
memory/772-93-0x0000000002640000-0x00000000027C1000-memory.dmp

Filesize
1.5MB

Download
memory/772-96-0x0000000002A10000-0x0000000002B11000-memory.dmp

Filesize
1.0MB

Download
memory/816-100-0x0000000000000000-mapping.dmp

Download
memory/1724-60-0x0000000075161000-0x0000000075163000-memory.dmp

Filesize
8KB

Download
memory/1724-65-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1880-101-0x000007FEFB571000-0x000007FEFB573000-memory.dmp

Filesize
8KB

Download
memory/1880-102-0x00000000027C0000-0x00000000027C1000-memory.dmp

Filesize
4KB

Download
memory/1964-68-0x0000000000000000-mapping.dmp

Download
memory/1964-71-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads