xmrig | 29051e0cdfd29405d4766b2d09e93c03b190fc71d094d11fb0e7bc998187689d

Analysis

max time kernel
138s
max time network
152s
platform
windows10_x64
resource
win10v20210410
submitted
05-05-2021 10:07

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General

Target

d331a53d_by_Libranalysis.exe
Size

118KB
MD5

d331a53d6deced27e44a1b23a897c660
SHA1

a96d6f7f562943794a632b7071c2bc228477ed6f
SHA256

29051e0cdfd29405d4766b2d09e93c03b190fc71d094d11fb0e7bc998187689d
SHA512

632b1a37d395a9dad7e2ac1c47007b98c877f187ecf564935fa1cb9062ceed13eacd98cc9782e815d616c204e38e9c3bef43f4223c3f69a4b94562e899543a18

Score

10^/10

xmrig miner persistence

Malware Config

Signatures

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

ACProtect 1.3x - 1.4x DLL software 3 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
\Windows\SysWOW64\shervans.dll	acprotect
C:\Windows\SysWOW64\shervans.dll	acprotect
\Windows\SysWOW64\shervans.dll	acprotect

Executes dropped EXE 2 IoCs

Processes:

ctfmen.exesmnss.exe

pid process

3856 ctfmen.exe
1232 smnss.exe
Loads dropped DLL 2 IoCs

Processes:

d331a53d_by_Libranalysis.exesmnss.exe

pid process

3872 d331a53d_by_Libranalysis.exe
1232 smnss.exe

pid	process
3856	ctfmen.exe
1232	smnss.exe

pid	process
3872	d331a53d_by_Libranalysis.exe
1232	smnss.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

smnss.exed331a53d_by_Libranalysis.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe"	smnss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe"	d331a53d_by_Libranalysis.exe

Maps connected drives based on registry 3 TTPs 6 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

smnss.exed331a53d_by_Libranalysis.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	smnss.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	smnss.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\1	smnss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	d331a53d_by_Libranalysis.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	d331a53d_by_Libranalysis.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\1	d331a53d_by_Libranalysis.exe

Drops file in System32 directory 12 IoCs

Processes:

d331a53d_by_Libranalysis.exesmnss.exe

description	ioc	process
File created	C:\Windows\SysWOW64\ctfmen.exe	d331a53d_by_Libranalysis.exe
File created	C:\Windows\SysWOW64\shervans.dll	d331a53d_by_Libranalysis.exe
File created	C:\Windows\SysWOW64\grcopy.dll	d331a53d_by_Libranalysis.exe
File opened for modification	C:\Windows\SysWOW64\grcopy.dll	d331a53d_by_Libranalysis.exe
File created	C:\Windows\SysWOW64\zipfi.dll	smnss.exe
File created	C:\Windows\SysWOW64\smnss.exe	smnss.exe
File opened for modification	C:\Windows\SysWOW64\ctfmen.exe	d331a53d_by_Libranalysis.exe
File opened for modification	C:\Windows\SysWOW64\shervans.dll	d331a53d_by_Libranalysis.exe
File created	C:\Windows\SysWOW64\smnss.exe	d331a53d_by_Libranalysis.exe
File created	C:\Windows\SysWOW64\satornas.dll	d331a53d_by_Libranalysis.exe
File opened for modification	C:\Windows\SysWOW64\satornas.dll	d331a53d_by_Libranalysis.exe
File created	C:\Windows\SysWOW64\zipfiaq.dll	smnss.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3764 1232 WerFault.exe smnss.exe

pid	pid_target	process	target process
3764	1232	WerFault.exe	smnss.exe

Modifies registry class 6 IoCs

Processes:

d331a53d_by_Libranalysis.exesmnss.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32	d331a53d_by_Libranalysis.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	d331a53d_by_Libranalysis.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	d331a53d_by_Libranalysis.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}	d331a53d_by_Libranalysis.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	d331a53d_by_Libranalysis.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	smnss.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe
3764	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

smnss.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	1232	smnss.exe
Token: SeRestorePrivilege	3764	WerFault.exe
Token: SeBackupPrivilege	3764	WerFault.exe
Token: SeDebugPrivilege	3764	WerFault.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d331a53d_by_Libranalysis.exectfmen.exe

description	pid	process	target process
PID 3872 wrote to memory of 3856	3872	d331a53d_by_Libranalysis.exe	ctfmen.exe
PID 3872 wrote to memory of 3856	3872	d331a53d_by_Libranalysis.exe	ctfmen.exe
PID 3872 wrote to memory of 3856	3872	d331a53d_by_Libranalysis.exe	ctfmen.exe
PID 3856 wrote to memory of 1232	3856	ctfmen.exe	smnss.exe
PID 3856 wrote to memory of 1232	3856	ctfmen.exe	smnss.exe
PID 3856 wrote to memory of 1232	3856	ctfmen.exe	smnss.exe

C:\Users\Admin\AppData\Local\Temp\d331a53d_by_Libranalysis.exe
"C:\Users\Admin\AppData\Local\Temp\d331a53d_by_Libranalysis.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3872

C:\Windows\SysWOW64\ctfmen.exe
ctfmen.exe
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3856

C:\Windows\SysWOW64\smnss.exe
C:\Windows\system32\smnss.exe
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1232 -s 1144
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\ctfmen.exe
MD5
54e565c16486516b6e90417adaab1452

SHA1
0bea045e3c7c5116c9f1241820b1a2051020f17b

SHA256
146e7747ffb92c777371bdf113992822f7f37ac4f71dc8b4d2fcdd836d0fb5fd

SHA512
1a0ec37e6705b80a24a61a467a661f75b621666cff9f81ec6870c0225e977dcedd99410e0e1c0ad908d2d450cfdefb2b7dd5e4aed15e13930d0a978f7444e909

Download Submit
C:\Windows\SysWOW64\ctfmen.exe
MD5
54e565c16486516b6e90417adaab1452

SHA1
0bea045e3c7c5116c9f1241820b1a2051020f17b

SHA256
146e7747ffb92c777371bdf113992822f7f37ac4f71dc8b4d2fcdd836d0fb5fd

SHA512
1a0ec37e6705b80a24a61a467a661f75b621666cff9f81ec6870c0225e977dcedd99410e0e1c0ad908d2d450cfdefb2b7dd5e4aed15e13930d0a978f7444e909

Download Submit
C:\Windows\SysWOW64\grcopy.dll
MD5
87890ee242a5c4f4169833889948de81

SHA1
454b2ad7d803d84e0c14f975b7f36ca8bfd116e5

SHA256
1f67a5d14f2c338f83f0494a5a52e950ad1eb3d4fb690bae8dfac3c85a7dded5

SHA512
ecf39318c5ff7df25dcf6cc40e7977fbec35195cfac9dddcea1efa7befc3bc3a4ab43c79b836fbf720a041d17fc78819cca06dead0d9c77990e11a5bdca4bc54

Download Submit
C:\Windows\SysWOW64\satornas.dll
MD5
254326f1921de85c9f877aedd6837ca5

SHA1
f92fa40bf5d7852f5c45301b45d37e241731ef83

SHA256
00b1dd2c78cebaf118f7dd3f6b7cfa71f4e9a8dc5f36aa6b934df27b2d6510ab

SHA512
960428efb16a1b88a99389a506582b6409b3c2862f3f443877aaeeb03f0a8b2fc50418894d355dcfafa506bdfc6b17f2a4b0af02ca35c100aec68a92b77c2f22

Download Submit
C:\Windows\SysWOW64\shervans.dll
MD5
67517a699acc94418e45433824bc084b

SHA1
f33275cb423a5bd8f76443908aa64fe301d25b58

SHA256
bf6b6b4311f34ab03e42737983ecfb8f425b186e1fd4f3ecb14ed0e8412d2ba0

SHA512
48936a4928771ba1381b58ff5c804ee0b194ad34364bc3fac4b094a85be1ec733558132c1882e3afeee5c596238177b376edecc5583ba5dbaa2faf07f1c9bb0a

Download Submit
C:\Windows\SysWOW64\smnss.exe
MD5
87890ee242a5c4f4169833889948de81

SHA1
454b2ad7d803d84e0c14f975b7f36ca8bfd116e5

SHA256
1f67a5d14f2c338f83f0494a5a52e950ad1eb3d4fb690bae8dfac3c85a7dded5

SHA512
ecf39318c5ff7df25dcf6cc40e7977fbec35195cfac9dddcea1efa7befc3bc3a4ab43c79b836fbf720a041d17fc78819cca06dead0d9c77990e11a5bdca4bc54

Download Submit
C:\Windows\SysWOW64\smnss.exe
MD5
87890ee242a5c4f4169833889948de81

SHA1
454b2ad7d803d84e0c14f975b7f36ca8bfd116e5

SHA256
1f67a5d14f2c338f83f0494a5a52e950ad1eb3d4fb690bae8dfac3c85a7dded5

SHA512
ecf39318c5ff7df25dcf6cc40e7977fbec35195cfac9dddcea1efa7befc3bc3a4ab43c79b836fbf720a041d17fc78819cca06dead0d9c77990e11a5bdca4bc54

Download Submit
\Windows\SysWOW64\shervans.dll
MD5
67517a699acc94418e45433824bc084b

SHA1
f33275cb423a5bd8f76443908aa64fe301d25b58

SHA256
bf6b6b4311f34ab03e42737983ecfb8f425b186e1fd4f3ecb14ed0e8412d2ba0

SHA512
48936a4928771ba1381b58ff5c804ee0b194ad34364bc3fac4b094a85be1ec733558132c1882e3afeee5c596238177b376edecc5583ba5dbaa2faf07f1c9bb0a

Download Submit
\Windows\SysWOW64\shervans.dll
MD5
67517a699acc94418e45433824bc084b

SHA1
f33275cb423a5bd8f76443908aa64fe301d25b58

SHA256
bf6b6b4311f34ab03e42737983ecfb8f425b186e1fd4f3ecb14ed0e8412d2ba0

SHA512
48936a4928771ba1381b58ff5c804ee0b194ad34364bc3fac4b094a85be1ec733558132c1882e3afeee5c596238177b376edecc5583ba5dbaa2faf07f1c9bb0a

Download Submit
memory/1232-118-0x0000000000000000-mapping.dmp

Download
memory/3856-115-0x0000000000000000-mapping.dmp

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